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Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam SCIE
期刊论文 | 2025 , 360 | SEPARATION AND PURIFICATION TECHNOLOGY
Abstract&Keyword Cite Version(2)

Abstract :

To cope with small production quantities of specialized chemicals, modular production plants have gained increasing attention in recent years. Zero-gravity distillation (ZGD) is a small-scale distillation process, which offers high separation efficiency, proving advantageous for modularizing processes. In this research, the study of ZGD process intensification is conducted. A ZGD experimental setup was established and the separation of ethanol/water mixtures was chosen as an example to investigate the effects of metal foam material, liquid filling rate, and PPI of metal foam on the separation performance, which was quantified by height equivalent to a theoretical plate (HETP). The results reveal that under constant feed volume (50 ml) and the mole fraction of ethanol (0.2), employing 40 PPI copper foam and 100 % liquid filling rate results in HETP of 5.56 cm for ZGD unit, demonstrating superior separation performance. Subsequently, an optimization strategy adopting sandwich internal structure with ordered hierarchical meta foam is proposed to further intensify the separation process. In contrast to the case of employing 40 PPI copper foam and liquid filling rate of 100 %, the optimization strategy can further reduce HETP by approximately 18.17 %, being 4.55 cm. This finding provides a theoretical foundation and technical guidance for developing zero-gravity distillation technology.

Keyword :

Height equivalent to a theoretical plate (HETP) Height equivalent to a theoretical plate (HETP) Ordered hierarchical metal foam Ordered hierarchical metal foam Process intensification Process intensification Sandwich internal structure Sandwich internal structure Separation performance Separation performance Zero-gravity distillation (ZGD) Zero-gravity distillation (ZGD)

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GB/T 7714 Lin, Yixiong , Huang, Zhibin , Jiang, Pengze et al. Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 360 .
MLA Lin, Yixiong et al. "Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam" . | SEPARATION AND PURIFICATION TECHNOLOGY 360 (2025) .
APA Lin, Yixiong , Huang, Zhibin , Jiang, Pengze , Wang, Qinglian , Yin, Wang , Yang, Chen et al. Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam . | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 360 .
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Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam EI
期刊论文 | 2025 , 360 | Separation and Purification Technology
Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam Scopus
期刊论文 | 2025 , 360 | Separation and Purification Technology
Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol SCIE
期刊论文 | 2025 , 512 | CHEMICAL ENGINEERING JOURNAL
Abstract&Keyword Cite Version(1)

Abstract :

The C2-O cleavage of furanic ring is the crucial step in selective hydrogenation of furfuryl alcohol (FOL) to 1,5pentanediol (1,5-PDO). In this study, reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy (Ov) and different Co/Ni molar ratios were prepared through intercalation modification of Co-based hydrotalcite by ammonium citrate (CA), followed by calcination and reduction. The catalytic performance exhibited that a quantitative conversion of FOL with 44.4 % yield and 8.2 mmol1,5-PDO & sdot;gcat -1 & sdot;h- 1 productivity of 1,5-PDO were achieved by using Co2Ni1Al1Ox-CA(0.1) (molar ratio of Co:Ni = 2:1; molar concentration ratio of CA:Na2CO3 = 0.1) under optimal conditions. The stability test showed that Co2Ni1Al1Ox-CA(0.1) consistently rendered above 40 % yield of 1,5-PDO in seven consecutive cycles. Catalyst characterizations were carried out using a series of techniques including XPS, EPR, O2-TPD, etc. The results demonstrate that the addition of CA effectively altered the surface molar ratios of Co2+/(Co2++Co3+), thereby regulating the Ov content of the obtained catalysts. The CoO-Ov sites in the catalyst might enhance the adsorption of FOL by eta 1-(O)-alcoholic model, which weakened C2O bond on the furanic ring of FOL. Besides, the H2-TPD anslysis confirmed that the enhanced spillover of hydrogen from Ni0 onto CoO-Ov site, thereby promoting the cleavage of the C2-O bond in FOL and subsequent hydrogenation of enol intermediates. In addition, the DFT calculations imply that FOL adsorption on CoO-Ov site by eta 1-(O)-alcoholic model was significantly favorable than that on pristine CoO sites (-1.68 eV versus -1.55 eV). Consequently, this study has substantiated the crucial role played by CoO-Ov in the reaction pathway leading to 1,5-PDO formation via FOL, proposing a viable scheme for designing catalysts based on transition metals and elucidating their underlying reaction mechanism.

Keyword :

1,5-pentanediol 1,5-pentanediol Furfuryl alcohol Furfuryl alcohol Oxygen vacancy Oxygen vacancy Reduced mixed metal oxide catalysts Reduced mixed metal oxide catalysts Selective hydrogenation Selective hydrogenation

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GB/T 7714 Xi, Nan , Li, Qiwang , Chen, Yi et al. Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 .
MLA Xi, Nan et al. "Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol" . | CHEMICAL ENGINEERING JOURNAL 512 (2025) .
APA Xi, Nan , Li, Qiwang , Chen, Yi , Bao, Ruixi , Wang, Qinglian , Lin, Yixiong et al. Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol . | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 .
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Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol Scopus
期刊论文 | 2025 , 512 | Chemical Engineering Journal
Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol EI
期刊论文 | 2024 , 565 | Molecular Catalysis
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Abstract :

Furfuryl alcohol (FOL) is commercially available by selective hydrogenation of furfural (FAL). A variety of catalysts have been developed for such purpose, among which Cu-based catalysts show superior catalytic performance. However, copper nanoparticles with complex valence states are easy to agglomerate during hydrogenation reaction, which might have a negative influence on the catalytic performance. The carbon coating is an efficient strategy to prevent the sintering of Cu-based catalysts. Herein, a strategy based on the thermal decomposition of Cu-EDTA complex was designed to prepare carbon encapsulated Cu-based catalysts. The prepared catalysts were applied in the selective hydrogenation of FAL to FOL in the batch reactor. The results showed that a nearly quantitative conversion of FAL with a selectivity of 98.7 % towards FOL was achieved using CuOx@NC-150 (molar ratio of Cu: Na4EDTA·4H2O=2:1; obtained by oxidative activation at 150 °C) under 140 °C, 3 MPa in 4 h. The performance was comparable to that of the commercial CuCr2O4 catalyst under the identical conditions. In addition, the developed carbon encapsulated Cu-based catalysts exhibited a slightly better stability than CuCr2O4 catalyst in terms of FOL yield in five consecutive cycles. XPS and XAES characterizations implied that the presence of a suitable surface ratio of Cu+/(Cu++Cu0) of the prepared catalyst may contribute to the selective hydrogenation of FAL to FOL. © 2024 Elsevier B.V.

Keyword :

Aldehydes Aldehydes Batch reactors Batch reactors Carbon Carbon Catalyst selectivity Catalyst selectivity Chromium compounds Chromium compounds Coatings Coatings Copper compounds Copper compounds Decomposition Decomposition Furfural Furfural Hydrogenation Hydrogenation Molar ratio Molar ratio Sintering Sintering

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GB/T 7714 Xi, Nan , Chen, Shiting , Bao, Ruixi et al. Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol [J]. | Molecular Catalysis , 2024 , 565 .
MLA Xi, Nan et al. "Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol" . | Molecular Catalysis 565 (2024) .
APA Xi, Nan , Chen, Shiting , Bao, Ruixi , Wang, Qinglian , Lin, Yixiong , Yue, Jun et al. Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol . | Molecular Catalysis , 2024 , 565 .
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Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure EI
期刊论文 | 2024 , 494 | Chemical Engineering Journal
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Abstract :

Compressing metal foam flow field usually causes a higher pressure drop and uncontrollable pore structure while enhancing the water discharge capability of proton exchange membrane fuel cell (PEMFC). To further enhance the water discharge capability of metal foam flow field at a low cost of pressure drop, a novel metal foam flow field exhibiting hierarchical pore structure(dcoarse/dfine=2; Vcoarse/Vfine=1; dfine=0.5 mm) is first introduced. This work numerically investigates water management characteristics and output performance of novel metal foam flow field. Subsequently, 3D printing technology is employed to precisely manufacture metal foam flow fields, which are compared with several flow fields in the cathode side experimentally. Experimental results demonstrate that at 1.5 A/cm2 during 3 h, the amount of water discharge in metal foam flow field with hierarchical pore structure is close to parallel flow field, which is 1.12 times and 1.30 times that in metal foam flow field with uniform coarse pore and uniform fine pore, respectively. Moreover, compared with the previous optimized strategy, namely metal foam flow field with 75 PPI and a compression rate of 0.75, metal foam flow field with hierarchical pore structure can not only improve the maximum net power density by 9.5 % and water discharge amount by 14.1 %, but also decrease two-thirds of the pressure drop in the cathode side. This research lays the theoretical groundwork and offers technical insight for the implementation of metal foam flow fields in PEMFCs. © 2024 Elsevier B.V.

Keyword :

3D printing 3D printing Cathodes Cathodes Drops Drops Flow fields Flow fields Metal foams Metal foams Parallel flow Parallel flow Pore structure Pore structure Pressure drop Pressure drop Proton exchange membrane fuel cells (PEMFC) Proton exchange membrane fuel cells (PEMFC) Water management Water management

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GB/T 7714 Sun, Yun , Lin, Yixiong , Wan, Zhongmin et al. Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure [J]. | Chemical Engineering Journal , 2024 , 494 .
MLA Sun, Yun et al. "Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure" . | Chemical Engineering Journal 494 (2024) .
APA Sun, Yun , Lin, Yixiong , Wan, Zhongmin , Wang, Qinglian , Yang, Chen , Yin, Wang et al. Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure . | Chemical Engineering Journal , 2024 , 494 .
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Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell Scopus
期刊论文 | 2024 , 257 | Applied Thermal Engineering
SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

The balance between water discharge and mass transfer within metal foam flow field is vital for elevating the performance of proton exchange membrane fuel cell (PEMFC). To obtain an improved balance, this work designs a novel bilayer structure with two types of PPI (pore per inch) for metal foam flow field. Experimental and numerical results confirmed that arranging a metal foam featuring a smaller PPI in the layer 1 near the membrane electrode assembly (MEA) and a larger PPI in the layer 2 away from the MEA is beneficial to enhance the output performance. The excellent PPI combination for balancing mass transfer and water discharge involves utilizing a 50 PPI metal foam for the layer 1 and 110 PPI metal foam for the layer 2. Compared to conventional metal foam with 50 PPI, metal foam flow field with excellent PPI combination showcases a 11.2 % increase in water discharge and a 13.2 % boost in mass transfer, leading to a notable 23.5 % performance enhancement. Similarly, compared to conventional metal foam with 110 PPI, there is a 7.3 % decrease in mass transfer but a significant 29.5 % increases in water discharge, leading to a 15.2 % performance improvement. © 2024 Elsevier Ltd

Keyword :

Bilayer structure Bilayer structure Mass transfer Mass transfer Metal foam flow field Metal foam flow field PEMFC PEMFC Water discharge Water discharge

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GB/T 7714 Sun, Y. , Lin, Y. , Wang, Q. et al. Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell [J]. | Applied Thermal Engineering , 2024 , 257 .
MLA Sun, Y. et al. "Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell" . | Applied Thermal Engineering 257 (2024) .
APA Sun, Y. , Lin, Y. , Wang, Q. , Yin, W. , Liu, B. , Yang, C. et al. Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell . | Applied Thermal Engineering , 2024 , 257 .
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Two-step synthesis of coconut shell biochar-based ternary composite to efficiently remove organic pollutants by photocatalytic degradation SCIE
期刊论文 | 2024 , 12 (3) | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Abstract&Keyword Cite Version(2)

Abstract :

Designing environmentally friendly, low cost and efficient photocatalysts is vitally important for degradation of organic pollutants. Herein, a ternary composite-ZnO/ACSC@TiO2, constituted by activated coconut shell derived biochar (ACSC), TiO2 and ZnO, was successfully synthesized by two-step hydrothermal method. It demonstrated that TiO2 could be uniformly wrapped on ACSC surface during first step to form core-shell structures (ACSC@TiO2). It was beneficial not only to enhance adsorption capacity for organic pollutants and absorption ability for light, but also to form C-doped TiO2 with a relatively narrow bandgap to expand light absorption of TiO2 from UV to visible light. Subsequently, ZnO was introduced through second step to generate type-II heterojunctions with ACSC@TiO2, which further reduced bandgap value of the ternary photocatalyst to promote photogenerated carrier generation and efficiently diminished recombination of e--h+ pairs. As expected, the optimal prepared catalyst with 10 wt% of ZnO (10%ZnO/ACSC@TiO2) exhibited excellent adsorptive and photocatalytic abilities for removal of tetracycline (TC) and Rhodamine B (RhB) with different initial concentrations. Particularly, its total removal efficiency for TC and RhB was 97.6% and 99.4%, respectively under 300 W xenon lamp irradiation (25 mg/L of organic pollutants, 1.0 g/L catalyst and natural pH in 60 min). Investigations on catalytic mechanism and degradation pathways proved that 10%ZnO/ACSC@TiO2 could remove RhB and TC by deep degradation. Its enhanced synergy of adsorption and photocatalysis could efficiently accelerate mineralization rates of RhB and TC. This biomass derived biochar-based ternary composite as photocatalyst with optimized energy band structures and microstructures would have good industrial application potential.

Keyword :

Biochar Biochar Degradation of organic pollutants Degradation of organic pollutants Photocatalysis Photocatalysis Photocatalytic mechanism Photocatalytic mechanism Synergistic removal Synergistic removal

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GB/T 7714 Zhang, Shipeng , Wang, Rong , Zhu, Jinhua et al. Two-step synthesis of coconut shell biochar-based ternary composite to efficiently remove organic pollutants by photocatalytic degradation [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (3) .
MLA Zhang, Shipeng et al. "Two-step synthesis of coconut shell biochar-based ternary composite to efficiently remove organic pollutants by photocatalytic degradation" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 3 (2024) .
APA Zhang, Shipeng , Wang, Rong , Zhu, Jinhua , Xie, Xiaoyan , Luo, Mei , Liu, Yude et al. Two-step synthesis of coconut shell biochar-based ternary composite to efficiently remove organic pollutants by photocatalytic degradation . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (3) .
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Two-step synthesis of coconut shell biochar-based ternary composite to efficiently remove organic pollutants by photocatalytic degradation EI
期刊论文 | 2024 , 12 (3) | Journal of Environmental Chemical Engineering
Two-step synthesis of coconut shell biochar-based ternary composite to efficiently remove organic pollutants by photocatalytic degradation Scopus
期刊论文 | 2024 , 12 (3) | Journal of Environmental Chemical Engineering
Supported bimetallic PtNi-vinyl complex for hydrosilylation of straight-chain terminal alkenes with tertiary silanes: Effect of Ni promoter on catalytic performance SCIE
期刊论文 | 2024 , 296 | CHEMICAL ENGINEERING SCIENCE
WoS CC Cited Count: 1
Abstract&Keyword Cite Version(2)

Abstract :

A bimetallic PtNi-vinyl complex as catalytic active center was created on modified rice straw biochar by introducing an appropriate amount of cheap Ni component as a catalytic promoter. The constructed bimetallic catalyst (PtNi-VTES-RSOC) was used to catalyze hydrosilylation of terminal alkenes with tertiary silanes to produce alkylsilanes with high commercial application value. The experimental results proved that the conversion of 1-octene 96.5 % and selectivity for target product 97.1 % were obtained in hydrosilylation of 1-octene with triethoxysilane catalyzed by PtNi-VTES-RSOC with mass ratio of Pt/Ni = 1.5:1 (molar ratio of Pt/Ni approximate to 1:2) under mild conditions (atmospheric pressure, solvent-free, 50 degree celsius and 3 h). It also possessed higher catalytic ability and regioselectivity for hydrosilyation of long-chain alkenes (1-octadecene) with tertiary silanes compared to the counterpart monometallic catalysts. The characterization and theoretical calculation results demonstrated that the introduced suitable amount of Ni(II) could affect the structure of original Pt(II)-vinyl complexes and form a stable and unique bimetallic vinyl coordination microstructure by using a shared vinyl group, thereby affecting morphology, structure, and catalytic performance of the as-prepared bimetallic catalyst with mass ratio of Pt/Ni = 1.5:1. Changing the introduction order and introducing excessive or insufficient of Ni (II) would both disrupt the formation of this special structure and affect the catalytic performance. Additionally, the formed stable complex structure with vinyl groups could well maintain the catalytic stability. The study results exposed that the as-prepared bimetallic catalyst would possess a great industrial application potential in the hydrosilylation of alkenes by efficiently increasing the product quality and reducing operation cost.

Keyword :

Bimetallic catalysts Bimetallic catalysts Biochar Biochar Heterogeneous catalysis Heterogeneous catalysis Optimized conditions Optimized conditions Synthesis of organosilicon Synthesis of organosilicon

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GB/T 7714 Zhu, Jinhua , Wang, Rong , Zhang, Shipeng et al. Supported bimetallic PtNi-vinyl complex for hydrosilylation of straight-chain terminal alkenes with tertiary silanes: Effect of Ni promoter on catalytic performance [J]. | CHEMICAL ENGINEERING SCIENCE , 2024 , 296 .
MLA Zhu, Jinhua et al. "Supported bimetallic PtNi-vinyl complex for hydrosilylation of straight-chain terminal alkenes with tertiary silanes: Effect of Ni promoter on catalytic performance" . | CHEMICAL ENGINEERING SCIENCE 296 (2024) .
APA Zhu, Jinhua , Wang, Rong , Zhang, Shipeng , Xie, Xiaoyan , Luo, Mei , Peng, Hailong et al. Supported bimetallic PtNi-vinyl complex for hydrosilylation of straight-chain terminal alkenes with tertiary silanes: Effect of Ni promoter on catalytic performance . | CHEMICAL ENGINEERING SCIENCE , 2024 , 296 .
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Supported bimetallic PtNi-vinyl complex for hydrosilylation of straight-chain terminal alkenes with tertiary silanes: Effect of Ni promoter on catalytic performance EI
期刊论文 | 2024 , 296 | Chemical Engineering Science
Supported bimetallic PtNi-vinyl complex for hydrosilylation of straight-chain terminal alkenes with tertiary silanes: Effect of Ni promoter on catalytic performance Scopus
期刊论文 | 2024 , 296 | Chemical Engineering Science
Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell SCIE
期刊论文 | 2024 , 257 | APPLIED THERMAL ENGINEERING
Abstract&Keyword Cite Version(2)

Abstract :

The balance between water discharge and mass transfer within metal foam flow field is vital for elevating the performance of proton exchange membrane fuel cell (PEMFC). To obtain an improved balance, this work designs a novel bilayer structure with two types of PPI (pore per inch) for metal foam flow field. Experimental and numerical results confirmed that arranging a metal foam featuring a smaller PPI in the layer 1 near the membrane electrode assembly (MEA) and a larger PPI in the layer 2 away from the MEA is beneficial to enhance the output performance. The excellent PPI combination for balancing mass transfer and water discharge involves utilizing a 50 PPI metal foam for the layer 1 and 110 PPI metal foam for the layer 2. Compared to conventional metal foam with 50 PPI, metal foam flow field with excellent PPI combination showcases a 11.2 % increase in water discharge and a 13.2 % boost in mass transfer, leading to a notable 23.5 % performance enhancement. Similarly, compared to conventional metal foam with 110 PPI, there is a 7.3 % decrease in mass transfer but a significant 29.5 % increases in water discharge, leading to a 15.2 % performance improvement.

Keyword :

Bilayer structure Bilayer structure Mass transfer Mass transfer Metal foam flow field Metal foam flow field PEMFC PEMFC Water discharge Water discharge

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GB/T 7714 Sun, Yun , Lin, Yixiong , Wang, Qinglian et al. Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell [J]. | APPLIED THERMAL ENGINEERING , 2024 , 257 .
MLA Sun, Yun et al. "Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell" . | APPLIED THERMAL ENGINEERING 257 (2024) .
APA Sun, Yun , Lin, Yixiong , Wang, Qinglian , Yin, Wang , Liu, Bo , Yang, Chen et al. Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell . | APPLIED THERMAL ENGINEERING , 2024 , 257 .
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Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell Scopus
期刊论文 | 2024 , 257 | Applied Thermal Engineering
Design and optimization of bilayer structure in metal foam flow field for proton exchange membrane fuel cell EI
期刊论文 | 2024 , 257 | Applied Thermal Engineering
Layered carbon encapsulated CuO x nanopaticles for selective hydrogenation of furfural to furfuryl alcohol SCIE
期刊论文 | 2024 , 565 | MOLECULAR CATALYSIS
Abstract&Keyword Cite Version(2)

Abstract :

Furfuryl alcohol (FOL) is commercially available by selective hydrogenation of furfural (FAL). A variety of catalysts have been developed for such purpose, among which Cu-based catalysts show superior catalytic performance. However, copper nanoparticles with complex valence states are easy to agglomerate during hydrogenation reaction, which might have a negative influence on the catalytic performance. The carbon coating is an efficient strategy to prevent the sintering of Cu-based catalysts. Herein, a strategy based on the thermal decomposition of Cu-EDTA complex was designed to prepare carbon encapsulated Cu-based catalysts. The prepared catalysts were applied in the selective hydrogenation of FAL to FOL in the batch reactor. The results showed that a nearly quantitative conversion of FAL with a selectivity of 98.7 % towards FOL was achieved using CuO x @NC-150 (molar ratio of Cu: Na 4 EDTA & sdot;4H 2 O=2:1; obtained by oxidative activation at 150 degrees C) under 140 degrees C, 3 MPa in 4 h. The performance was comparable to that of the commercial CuCr 2 O 4 catalyst under the identical conditions. In addition, the developed carbon encapsulated Cu-based catalysts exhibited a slightly better stability than CuCr 2 O 4 catalyst in terms of FOL yield in five consecutive cycles. XPS and XAES characterizations implied that the presence of a suitable surface ratio of Cu + /(Cu + +Cu 0 ) of the prepared catalyst may contribute to the selective hydrogenation of FAL to FOL.

Keyword :

Carbon coating Carbon coating Cu based catalyst Cu based catalyst Furfural Furfural Furfuryl alcohol Furfuryl alcohol Selective hydrogenation Selective hydrogenation

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GB/T 7714 Xi, Nan , Chen, Shiting , Bao, Ruixi et al. Layered carbon encapsulated CuO x nanopaticles for selective hydrogenation of furfural to furfuryl alcohol [J]. | MOLECULAR CATALYSIS , 2024 , 565 .
MLA Xi, Nan et al. "Layered carbon encapsulated CuO x nanopaticles for selective hydrogenation of furfural to furfuryl alcohol" . | MOLECULAR CATALYSIS 565 (2024) .
APA Xi, Nan , Chen, Shiting , Bao, Ruixi , Wang, Qinglian , Lin, Yixiong , Yue, Jun et al. Layered carbon encapsulated CuO x nanopaticles for selective hydrogenation of furfural to furfuryl alcohol . | MOLECULAR CATALYSIS , 2024 , 565 .
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Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol EI
期刊论文 | 2024 , 565 | Molecular Catalysis
Layered carbon encapsulated CuOx nanopaticles for selective hydrogenation of furfural to furfuryl alcohol Scopus
期刊论文 | 2024 , 565 | Molecular Catalysis
Defect engineering of single-atom catalysts in biomass conversion SCIE
期刊论文 | 2024 , 355 | FUEL
WoS CC Cited Count: 4
Abstract&Keyword Cite Version(2)

Abstract :

Single-atom catalysts (SACs) have attracted intensive attention due to their highest atom utilization, especially for expensive noble metal catalysts. This article provides a comprehensive review of defect engineering in the preparation of SACs. A unique view of the synergy of single atoms and defects during biomass conversion reactions is presented. The role of defects on SACs in biomass conversion reactions is discussed. The adsorption activation mechanism, local promotion mechanism, active site renewal mechanism, and selective recognition mechanism of defects are proposed and explained. Through the classification and in-depth analysis of typical biomass conversion reactions using SACs, the promising potential of defect engineering in broader biomass upgrading is illustrated. It is hoped that this paper provides guidance for the rational design of SACs and their application in a wide range of systematic biomass conversions.

Keyword :

Biomass Biomass Defect engineering Defect engineering Heterogeneous catalysis Heterogeneous catalysis Single-atom catalyst Single-atom catalyst

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GB/T 7714 Wang, Dengwei , Shan, Hai , Yin, Wang et al. Defect engineering of single-atom catalysts in biomass conversion [J]. | FUEL , 2024 , 355 .
MLA Wang, Dengwei et al. "Defect engineering of single-atom catalysts in biomass conversion" . | FUEL 355 (2024) .
APA Wang, Dengwei , Shan, Hai , Yin, Wang , Li, Hao . Defect engineering of single-atom catalysts in biomass conversion . | FUEL , 2024 , 355 .
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Defect Engineering of Single-atom Catalysts in Biomass Conversion EI
期刊论文 | 2024 , 355 | Fuel
Defect Engineering of Single-atom Catalysts in Biomass Conversion Scopus
期刊论文 | 2024 , 355 | Fuel
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