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学者姓名：江莉龙
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Abstract ：
High-carbon alcohols are important chemical raw materials and have extensive applications in the fields of chemistry, chemical engineering, and pharmaceuticals. Converting fatty acids or fatty acid methyl esters from waste oil into high-carbon alcohols through hydrogenation has attracted increasing attention. In this study, a series of Cu-ZrO2 catalysts were prepared by a citric acid-assisted sol-gel method. Results reveal that Cu-ZrO2 catalysts prepared by the sol-gel method mainly exist in the form of tetragonal ZrO2with loaded copper species. There is a certain metal-support interaction between metallic Cu and the ZrO2 support, and ZrO2 crystal phase can be retained during the harsh catalytic reaction conditions. X-ray photoelectron spectroscopy results show that Cu0 species are the key active centers. When the Cu0 content is insufficient, the conversion rate of methyl palmitate increases with the increase of Cu0 content. When the Cu0 content is sufficient, Cu+ and Cu0 have a synergistic effect on the hydrogenation reaction. Catalyst dosage, reaction time, reaction temperature and hydrogen pressure were found to have significant effects on the catalytic transformation of methyl palmitate. Increase of reaction temperature can significantly improve the conversion of methyl palmitate. However, excessive temperature can easily induce the dehydration of the generated hexadecanol into by-products such as hexadecane. The conversion of methyl palmitate can be up to 95.1%, and the yield of hexadecanol can reach 91.1% under the conditions of 10% copper loading, 300℃, 6MPa H2 pressure and 2h reaction. © 2025 Chemical Industry Press Co., Ltd.. All rights reserved.
Keyword ：
Acids Acids Hydrogenolysis Hydrogenolysis Metallic compounds Metallic compounds Selenium compounds Selenium compounds
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| GB/T 7714 | Bao, Jie , Yu, Panjie , Ma, Yongde et al. Design of Cu-ZrO2 catalyst and its utilization in hydrogenation of methyl palmitate to fatty alcohols [J]. | Chemical Industry and Engineering Progress , 2025 , 44 (5) : 2997-3008 . |
| MLA | Bao, Jie et al. "Design of Cu-ZrO2 catalyst and its utilization in hydrogenation of methyl palmitate to fatty alcohols" . | Chemical Industry and Engineering Progress 44 . 5 (2025) : 2997-3008 . |
| APA | Bao, Jie , Yu, Panjie , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Design of Cu-ZrO2 catalyst and its utilization in hydrogenation of methyl palmitate to fatty alcohols . | Chemical Industry and Engineering Progress , 2025 , 44 (5) , 2997-3008 . |
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Water gas shift reaction is an important process in hydrogen production from carbon-based materials. Cu-based catalysts are widely used in low-temperature water gas shift reactions. The problem is that Cu species are prone to sintering and deactivation, as well as the controversial reaction mechanism. Herein, CuFe2O4 modified with Al3+ is served as the Cu-based catalyst precursor, and the catalytic structure-activity relationship as well as reaction mechanism are carefully investigated. The modification of CuFe2O4 precursor by Al3+ enhances the Cu species dispersion, redox properties and electron transfer ability, leading to increasing the proportion of Cu+/ (Cu0+Cu+), which results in enhancing the ability of the catalyst to adsorb CO and dissociate H2O. The combination of temperature-programmed surface reaction (TPSR) and infrared spectroscopy shows that the catalyst with weak water dissociation ability and medium CO adsorption capacity are prone to obey the association mechanism.
Keyword ：
Association mechanism Association mechanism Copper ferrite Copper ferrite Cu plus site Cu plus site Metal-support interaction Metal-support interaction Spinel Spinel
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| GB/T 7714 | Zhi, Guo , Huang, Chunjin , Ren, Hongju et al. Ternary Cu-Fe-Al spinel catalyst for hydrogen production via water gas shift reaction: Electron transfer enhancement and reaction mechanism [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 102 : 1093-1102 . |
| MLA | Zhi, Guo et al. "Ternary Cu-Fe-Al spinel catalyst for hydrogen production via water gas shift reaction: Electron transfer enhancement and reaction mechanism" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 102 (2025) : 1093-1102 . |
| APA | Zhi, Guo , Huang, Chunjin , Ren, Hongju , Fang, Huihuang , Chen, Chongqi , Luo, Yu et al. Ternary Cu-Fe-Al spinel catalyst for hydrogen production via water gas shift reaction: Electron transfer enhancement and reaction mechanism . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 102 , 1093-1102 . |
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Achieving green ammonia (NH3) synthesis requires developing effective catalysts under mild conditions. However, the competitive adsorption of N-2 and H-2, as well as the strong binding of N-containing intermediates on the catalyst, greatly inhibits the active sites for efficient NH3 synthesis. Here, we constructed a series of ZrH2-modified Fe catalysts with dual active sites to address these issues and realized efficient NH3 synthesis under mild conditions. Our study shows that ZrH2 can not only provide active sites for H-2 activation but also transfer electrons to Fe sites for accelerating N-2 activation. The interaction between Fe and ZrH2 over 40ZrH(2)-Fe leads to a decrease in work function and a downward shift of the d-band center, which is conducive to N-2 activation and NH3 desorption, respectively. The utilization of distinct sites for activating different reactants can avoid the competitive adsorption of N-2 and H-2, leading to excellent NH3 synthesis activity of the 40 wt.% ZrH2-mediated Fe catalyst. As a result, 40ZrH(2)-Fe exhibits a high NH3 synthesis rate of 23.3 mmol g(cat)(-1) h(-1) at 400 degrees C and 1 MPa and robust stability during 100 h time-on-stream.
Keyword ：
ammonia synthesis ammonia synthesis competitive adsorption competitive adsorption dual-site catalyst dual-site catalyst N-2 activation N-2 activation synergistic effect synergistic effect
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| GB/T 7714 | Zhang, Shiyong , Zhang, Mingyuan , Zhang, Tianhua et al. A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions [J]. | SCIENCE CHINA-CHEMISTRY , 2025 , 68 (4) : 1576-1584 . |
| MLA | Zhang, Shiyong et al. "A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions" . | SCIENCE CHINA-CHEMISTRY 68 . 4 (2025) : 1576-1584 . |
| APA | Zhang, Shiyong , Zhang, Mingyuan , Zhang, Tianhua , Sun, Jizhen , Li, Jiaxin , Su, Kailin et al. A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions . | SCIENCE CHINA-CHEMISTRY , 2025 , 68 (4) , 1576-1584 . |
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Developing catalysts enabling reactive separation is a promising strategy to enhance reaction and separation efficiency of esterification processes. Herein, we designed a class of hybrid catalysts with p-toluenesulfonic acid (PTSA) as main catalyst, and hydrogensulfate ILs as support catalyst and extractant. Using the designed catalysts for methyl esterification of long-chain fatty acids, phase splitting can occur, resulting in ester-rich and catalyst-rich phases. Under optimal conditions, the conversion of palmitic acid (PA) gives methyl palmitate (MP) yield of 98.2 % in 3 hat 348.2 K. The catalysts are also applicable for effective conversion of other long-chain fatty acids and can be facilely recycled through liquid-liquid separation without loss of activity. COSMOtherm and Gaussian calculations were performed to rationalize the reactive separation behavior of the designed catalysts. The kinetic and thermodynamic properties of the esterification reaction were also examined using pseudo-homogeneous (PH) model with non-ideality corrections.
Keyword ：
Acidic catalyst Acidic catalyst Biodiesel Biodiesel Esterification Esterification Ionic liquid Ionic liquid Reactive separation Reactive separation
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| GB/T 7714 | Wu, Wenquan , Zhang, Jiayin , Ma, Yongde et al. Ionic liquid-based hybrid acidic catalysts enabling phase splitting and reactive separation for methyl esterification of long-chain fatty acids [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 311 . |
| MLA | Wu, Wenquan et al. "Ionic liquid-based hybrid acidic catalysts enabling phase splitting and reactive separation for methyl esterification of long-chain fatty acids" . | CHEMICAL ENGINEERING SCIENCE 311 (2025) . |
| APA | Wu, Wenquan , Zhang, Jiayin , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Ionic liquid-based hybrid acidic catalysts enabling phase splitting and reactive separation for methyl esterification of long-chain fatty acids . | CHEMICAL ENGINEERING SCIENCE , 2025 , 311 . |
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Ammonia is a carbon-free energy carrier with 17.6 wt% hydrogen content. The design of an efficient and compact ammonia decomposition reactor based on low-temperature catalysts is the key to realizing industrial hydrogen production from ammonia. In this work, a multiscale model was developed by bridging the particle-scale characteristics of catalysts and reactor performances, to fully comprehend the ammonia decomposition process. The effects of catalyst porosity and pore diameters on the reactor size, precious metal loading, and the profile of temperature and heat flux were systematically evaluated. An improved reactor design was further proposed by applying the segmented reactor packed with two-stage egg-shell-type low-temperature catalysts, which decreased the precious metal usage by 61.6% and the temperature drop by 42.9 K. This segmentation strategy balanced the reaction rate and heat flux, indicating a significant potential in highly efficient, economical, and reliable hydrogen production from ammonia.
Keyword ：
ammonia decomposition ammonia decomposition catalyst micro-structure catalyst micro-structure hydrogen production hydrogen production multiscale model multiscale model precious metal reduction precious metal reduction
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| GB/T 7714 | Zhang, Lixuan , Wu, Yifan , Huang, Wenshi et al. Multiscale modeling of a low-temperature NH3 decomposition reactor for precious metal reduction and temperature control [J]. | AICHE JOURNAL , 2025 , 71 (6) . |
| MLA | Zhang, Lixuan et al. "Multiscale modeling of a low-temperature NH3 decomposition reactor for precious metal reduction and temperature control" . | AICHE JOURNAL 71 . 6 (2025) . |
| APA | Zhang, Lixuan , Wu, Yifan , Huang, Wenshi , Lin, Li , Wang, Luqiang , Wu, Zeyun et al. Multiscale modeling of a low-temperature NH3 decomposition reactor for precious metal reduction and temperature control . | AICHE JOURNAL , 2025 , 71 (6) . |
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As a carbon-free hydrogen (H2) carrier with the advantage of liquefaction storage and transportation, ammonia (NH3) is regarded as a competitive clean energy carrier for H2 production and power generation. This work designs a novel NH3-fueled hybrid power generation system, which combines ammonia decomposition reactor (ADR), proton exchange membrane fuel cell (PEMFC) and micro gas turbine (MGT) together with thermochemical recuperation for ADR. A system-level thermodynamic model has been developed to evaluate system performance with different optimization strategies. The model calculation reveals that the NH3 decomposition temperature drop from 500 degrees C to 350 degrees C can increase the energy efficiency from 33.5 % to 43.2 %, and two improved integration strategies have therefore been proposed. Mixing a part of NH3 with the exhaust gas from PEMFC anode to fuel MGT can reduce the NH3 decomposition demand and makes better use of waste heat from MGT. Integrating ADR with MGT combustor can lower the exhaust gas temperature and the efficiency loss when using high temperature NH3 decomposition catalyst. Both strategies can improve the system energy efficiency, to about 40% and 44% when NH3 decomposition temperature is 500 degrees C and 350 degrees C, respectively, and demonstrate better flexibility in adapting to changes in NH3 decomposition temperature.
Keyword ：
Ammonia decomposition Ammonia decomposition Ammonia energy Ammonia energy Power generation system Power generation system Proton exchange membrane fuel cell Proton exchange membrane fuel cell Thermochemical recuperation Thermochemical recuperation
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| GB/T 7714 | Lin, Li , Sun, Mingwei , Wu, Yifan et al. High-efficiency ammonia-fueled hybrid power generation system combining ammonia decomposition, proton exchange membrane fuel cell and micro gas turbine: A thermodynamic model and performance optimization [J]. | ENERGY CONVERSION AND MANAGEMENT , 2025 , 325 . |
| MLA | Lin, Li et al. "High-efficiency ammonia-fueled hybrid power generation system combining ammonia decomposition, proton exchange membrane fuel cell and micro gas turbine: A thermodynamic model and performance optimization" . | ENERGY CONVERSION AND MANAGEMENT 325 (2025) . |
| APA | Lin, Li , Sun, Mingwei , Wu, Yifan , Huang, Wenshi , Wu, Zeyun , Wang, Dabiao et al. High-efficiency ammonia-fueled hybrid power generation system combining ammonia decomposition, proton exchange membrane fuel cell and micro gas turbine: A thermodynamic model and performance optimization . | ENERGY CONVERSION AND MANAGEMENT , 2025 , 325 . |
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In the present work, the selective hydrodeoxygenation (HDO) performance of stearic acid over in situ MoS2 catalysts produced from various Mo precursors was evaluated. Notably, the in situ MoS2 catalyst generated from [N-8881](2)MoO4-a Mo-based ionic liquid (IL) with oil-soluble property-achieves up to 99.9% of stearic acid conversion with the HDO product octadecane yield of 97.5% at 300 degrees C, 8 MPa, and 6 h. The activity of [N-8881](2)MoO4 for catalyzing the selective HDO reaction is much better than commercial precursors like Mo(CO)(6) and (NH4)(6)Mo7O24. The in situ MoS2 catalysts were thoroughly characterized and analyzed to elucidate the experimental results. Moreover, the reaction pathway of stearic acid was proposed according to the product distribution, and the relative kinetic parameters were also calculated and discussed. The results indicate that applying Mo-based IL as the precursor to generate in situ MoS2 catalyst for the selective HDO of biolipids is highly interesting and desired.
Keyword ：
biodiesel biodiesel biolipid biolipid hydrodeoxygenation hydrodeoxygenation ionic liquid ionic liquid MoS2 catalyst MoS2 catalyst
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| GB/T 7714 | Shi, Leilian , Chen, Weihao , Ma, Yongde et al. Mo-based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics [J]. | AICHE JOURNAL , 2025 . |
| MLA | Shi, Leilian et al. "Mo-based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics" . | AICHE JOURNAL (2025) . |
| APA | Shi, Leilian , Chen, Weihao , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Mo-based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics . | AICHE JOURNAL , 2025 . |
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The water gas shift reaction is an important procedure in high-purity hydrogen production, and achieving high CO conversion in one single reactor is a key optimization objective. This work has developed a novel radial flow fixed-bed reactor for water gas shift reaction with integrated variable heat exchange and numerically investigated the system optimization concepts. The continuous heat removal from the catalyst bed has been proven to fully improve CO conversion at a lower H2O/CO molar ratio. The heat transfer rate distribution can also be flexibly adjusted to ensure sufficiently high and low temperatures in the early and late stages of the reaction, respectively, for a higher conversion. With sufficient coolant, low-temperature and high-temperature catalysts for water gas shift reaction can be combined in one reactor to increase CO conversion to over 98%, and the delayed heat removal configuration can achieve the highest CO conversion (98.50%) with the least proportion of low-temperature catalysts (9.2%).
Keyword ：
Fixed-bed reactor Fixed-bed reactor Integrated heat transfer Integrated heat transfer Radial flow reactor Radial flow reactor Water gas shift reaction Water gas shift reaction
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| GB/T 7714 | Huang, Yunyun , Huang, Wenshi , Lin, Li et al. Design of a radial flow fixed-bed reactor with integrated variable heat exchange for more efficient and purer hydrogen production via water gas shift reaction [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 99 : 685-696 . |
| MLA | Huang, Yunyun et al. "Design of a radial flow fixed-bed reactor with integrated variable heat exchange for more efficient and purer hydrogen production via water gas shift reaction" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 99 (2025) : 685-696 . |
| APA | Huang, Yunyun , Huang, Wenshi , Lin, Li , Cao, Yanning , Luo, Yu , Lin, Xingyi et al. Design of a radial flow fixed-bed reactor with integrated variable heat exchange for more efficient and purer hydrogen production via water gas shift reaction . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 99 , 685-696 . |
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Ammonia is a carbon-free hydrogen carrier, and development of non-noble metal catalyst to decompose ammonia into hydrogen is desirable for practical applications. However, the metal catalyst is challenged by the sintering of metal particles under high-temperature reaction conditions. In this study, a series of Li-, Al-, and Co-containing hydrotalcite-like compounds (HTlc) were synthesized by co-precipitation and used as precursors to prepare well-dispersed and thermally stable Co nanoparticle catalysts for ammonia decomposition. The obtained precursors and catalysts were characterized by means of X-ray powder diffraction (XRD), temperature-programmed reduction (H-2-TPR), X-ray photoelectron spectroscopy (XPS), high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), and so on. All of the precursors formed hydrotalcite-like phase, which consisted of Li-Al-(Co) HTlc and/or Co-Al HTlc dependent on the Co content. Upon calcination at 500 degrees C, HTlc decomposed into an Al-substituted Co3O4 spinel oxide, as confirmed by two distinctly separated reduction steps in H-2-TPR. Following reduction at 700 degrees C, well-dispersed Co metal nanoparticles with an average particle size of similar to 9.2-12.4 nm were obtained. It was suggested that the incorporation of Al3+ into Co3O4 led to a strong interaction between cobalt and aluminum, which suppressed the crystal growth of Co3O4 and the sintering of Co metal during the thermal treatments, resulting in good Co dispersion. The optimal LiAlCo(1.5) catalyst showed superior activity than that prepared by impregnation method, giving almost complete conversion of ammonia at 575 degrees C under a space velocity of 5,000 mL g(cat)(-1) h(-1). More importantly, this catalyst maintained stable activity at 625 degrees C for 100 h, exhibiting high stability and sintering resistance. The good catalytic performance was attributed to the high Co metal dispersion and strong metal-support interaction benefiting from the uniform distribution of cobalt in the HTlc precursor. These results demonstrate the applicability of HTlc to the preparation of metal catalysts with improved dispersion and thermal stability.
Keyword ：
Catalytic ammonia decomposition Catalytic ammonia decomposition Cobalt catalyst Cobalt catalyst Hydrogen production Hydrogen production Hydrotalcite-like compounds Hydrotalcite-like compounds
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| GB/T 7714 | Wei, Xiaofeng , Su, Jiaxin , Ji, Yuyin et al. Hydrotalcite-derived well-dispersed and thermally stable cobalt nanoparticle catalyst for ammonia decomposition [J]. | MOLECULAR CATALYSIS , 2025 , 572 . |
| MLA | Wei, Xiaofeng et al. "Hydrotalcite-derived well-dispersed and thermally stable cobalt nanoparticle catalyst for ammonia decomposition" . | MOLECULAR CATALYSIS 572 (2025) . |
| APA | Wei, Xiaofeng , Su, Jiaxin , Ji, Yuyin , Huang, Hongyang , Li, Dalin , Fang, Huihuang et al. Hydrotalcite-derived well-dispersed and thermally stable cobalt nanoparticle catalyst for ammonia decomposition . | MOLECULAR CATALYSIS , 2025 , 572 . |
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Cu-based catalysts have been extensively researched for hydrogen production via water-gas shift (WGS, CO+H2O <-> CO2+H-2) reaction. Yet, the catalyst easily suffers from performance degradation due to Cu+/Cu-0 transformation and particle aggregation. Herein, copper phyllosilicate with different morphologies, i.e., tubular and lamellar, was fabricated by a modified hydrothermal method for the WGS reaction. Compared with the catalyst derived from lamellar copper phyllosilicate (30Cu/SiO2-L), the one derived from the tubular phyllosilicate (30Cu/SiO2-T) demonstrates better performance due to the high Cu+/(Cu-0+Cu+) ratio. In situ characterizations were conducted to unveil the transformation between Cu+ and Cu-0, which is highly correlated to the CO and H2O activation. Cu+ is primarily responsible for the activation of CO, while Cu-0 mainly facilitates the dissociation of H2O. The results show that 30Cu/SiO2-T follows the redox mechanism, where CO reduces Cu+ to Cu-0 and H2O oxidizes Cu-0 to Cu+, maintaining the reaction cycle.
Keyword ：
copper phyllosilicate copper phyllosilicate Cu+-Cu-0 Cu+-Cu-0 morphology morphology redox mechanism redox mechanism water-gas shift water-gas shift
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| GB/T 7714 | Huang, Chunjin , Chen, Yue , Fang, Huihuang et al. Copper Phyllosilicate-Derived Cu Catalyst for the Water-Gas Shift Reaction: Insight into the Role of Cu+-Cu0 and Reaction Mechanism [J]. | ACS CATALYSIS , 2025 , 15 (7) : 5546-5556 . |
| MLA | Huang, Chunjin et al. "Copper Phyllosilicate-Derived Cu Catalyst for the Water-Gas Shift Reaction: Insight into the Role of Cu+-Cu0 and Reaction Mechanism" . | ACS CATALYSIS 15 . 7 (2025) : 5546-5556 . |
| APA | Huang, Chunjin , Chen, Yue , Fang, Huihuang , Zhi, Guo , Chen, Chongqi , Luo, Yu et al. Copper Phyllosilicate-Derived Cu Catalyst for the Water-Gas Shift Reaction: Insight into the Role of Cu+-Cu0 and Reaction Mechanism . | ACS CATALYSIS , 2025 , 15 (7) , 5546-5556 . |
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