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Relationship between phase transformation and corrosion performance of 2205 duplex stainless steel fabricated by laser powder bed fusion SCIE
期刊论文 | 2025 , 44 | MATERIALS TODAY COMMUNICATIONS
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Abstract :

Laser powder bed fusion (LPBF) has significant advantages in the fabrication of complex-structured duplex stainless steel (DSS). However, compared with cast samples, the duplex stainless steel prepared by LPBF has higher strength, but the elongation and corrosion resistance are significantly deteriorated, which restricts its extensive promotion and application. To achieve a balance between mechanical properties and corrosion resistance, the heat treatment was carried out at different temperatures of 950 degrees C, 1050 degrees C, 1150 degrees C, and 1250 degrees C. The influence of microstructure including phase ratio, grain size, and grain boundary features with different temperature heat treatment on the mechanical properties and corrosion resistance was investigated. The results show that the as-built samples had almost all ferrite due to the extremely fast cooling rate even if the 2205 DSS powders were used. Ferrite-austenite structure could be obtained with different heat treatment temperature, which increase LAGB and coincidence site lattice (CSL) boundaries and reduce residual stress. When the 2205 DSS prepared by LPBF was heat-treated at 1050 degrees C for 1 h, the two-phase ratio was close to 1:1 and a highest content of LAGB+ & sum;3(n) CSL of 25.50 % could be obtained. The H-1050 sample demonstrated an equilibrium between mechanical properties and corrosion resistance, exhibiting a tensile strength of 778.79 MPa, a yield strength of 592.43 MPa, a corrosion current density of 1.21 mu A/cm2, the highest self-corrosion potential of -0.718 V, and the largest charge transfer resistance of 12.4 x 10' Omega & sdot;cm2. Some corrosion pits caused by ferrite corrosion can be seen and the lowest corrosion depth of H-1050 was about 7.4 mu m. It's concluded that heat treatment can change the microstructure of DSS and improve its comprehensive performance. The best heat treatment temperature was found to be 1050 degrees C. The research conducted will provide theoretical guidance for the selection of heat treatment temperature for DSS prepared by LPBF.

Keyword :

Corrosion resistance Corrosion resistance Duplex stainless steel Duplex stainless steel Heat treatment Heat treatment Laser powder bed fusion Laser powder bed fusion Mechanical properties Mechanical properties

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GB/T 7714 Shen, Tongwei , Feng, Li , Shao, Yanqun et al. Relationship between phase transformation and corrosion performance of 2205 duplex stainless steel fabricated by laser powder bed fusion [J]. | MATERIALS TODAY COMMUNICATIONS , 2025 , 44 .
MLA Shen, Tongwei et al. "Relationship between phase transformation and corrosion performance of 2205 duplex stainless steel fabricated by laser powder bed fusion" . | MATERIALS TODAY COMMUNICATIONS 44 (2025) .
APA Shen, Tongwei , Feng, Li , Shao, Yanqun , Chen, Yunxiang , Xia, Xiaojian , Chen, Yaliang et al. Relationship between phase transformation and corrosion performance of 2205 duplex stainless steel fabricated by laser powder bed fusion . | MATERIALS TODAY COMMUNICATIONS , 2025 , 44 .
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Relationship between phase transformation and corrosion performance of 2205 duplex stainless steel fabricated by laser powder bed fusion EI
期刊论文 | 2025 , 44 | Materials Today Communications
Relationship between phase transformation and corrosion performance of 2205 duplex stainless steel fabricated by laser powder bed fusion Scopus
期刊论文 | 2025 , 44 | Materials Today Communications
ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors SCIE
期刊论文 | 2025 , 507 | CHEMICAL ENGINEERING JOURNAL
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Abstract :

Layered double hydroxides (LDHs) have long been a hot research topic in supercapacitors because of their abundant reaction sites. However, LDH nanosheets tend to easily stack together during the synthesis process. Therefore, in this paper, a simple and effective stirring aging method was used to grow ZIF-67 uniformly on the surface of Ni-Mn LDH. The strategy can fully utilize the high specific surface area of ZIF-67 to provide a large number of active sites for Ni-Mn LDHs, which results in a significant increase of the capacitance contribution. The core-shell structure NM LDHs@Z has significant redox peaks and the surface redox reaction. The capacitance contribution of NM LDHs@Z increase from 21.7 % to 91.4 %. But it does not belong battery-type supercapacitors from the CV curves. It is necessary to find out a better characterization parameter to estimate the type of battery or capacitor, instead of the CV and GCD curve shapes. The Ni-Mn LDHs@ZIF-67 composites can achieve a specific capacitance of 1340 F g- 1at a current density of 1 A g-1. As the specific current density is increased to 10 A g- 1, the capacity retention can reach about 75 %, which is superior to that of the Ni-Mn LDHs (60 %). The hybrid supercapacitor is composed of Ni-Mn LDHs@ZIF-67 composite as the cathode and activated carbon (AC) as the anode with a 128 F g- 1 specific capacitance at a 1 A g- 1 current density and a 45.8 Wh kg- 1 energy density at a 850 W kg- 1 power density. The Ni-Mn LDH@ZIF-67 composites has a potential application in hybrid supercapacitors.

Keyword :

Aggregated LDHs Aggregated LDHs Ni-Mn LDHs Ni-Mn LDHs Supercapacitors Supercapacitors ZIF-67 ZIF-67

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GB/T 7714 Chen, Fuqiang , Li, Jiamei , Shao, Yanqun et al. ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 507 .
MLA Chen, Fuqiang et al. "ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors" . | CHEMICAL ENGINEERING JOURNAL 507 (2025) .
APA Chen, Fuqiang , Li, Jiamei , Shao, Yanqun , Zhu, Zhijin , Shen, Tongwei , Chen, Kongfa et al. ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors . | CHEMICAL ENGINEERING JOURNAL , 2025 , 507 .
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ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors EI
期刊论文 | 2025 , 507 | Chemical Engineering Journal
ZIF-67 wraps Ni-Mn LDHs nanosheets to enhance the capacitive contribution of supercapacitors Scopus
期刊论文 | 2025 , 507 | Chemical Engineering Journal
ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors EI
期刊论文 | 2024 , 39 | Materials Today Communications
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Abstract :

Transition metal sulfides are used in the field of supercapacitors due to their remarkable electrical conductivity and superior energy density. However, few research has been conducted on how the sulfidation process affects the structure and electrochemical properties of electrodes. The nanoneedle array Zn-Mn-Co sulfide (ZMC-S/NF) electrode is prepared by directly growing on nickel foam (NF) via a two-step hydrothermal technique. During the first step, the Zn-Mn-Co carbonate hydroxide nanoneedle skeleton can be obtained. During the second step, the nanoneedle skeletons are etched, and rough nanoneedle arrays are created by the introduced sulfur ions,i.e., the sulfidation process. The ZMC-S/NF electrode exhibits a specific capacity of 1401.0 C g−1 at 2 A g−1. It still has excellent rate performance with a specific capacity of 1015.3 C g−1 at 20 A g−1. Moreover, it exhibits excellent cycling stability with 81.9% capacity retention after 10,000 cycles. ZMC-S/NF as the cathode and activated carbon (AC) as the anode are assembled to be a hybrid supercapacitor (HSC), which has an energy density of 43.4 Wh kg−1 at a power density of 700.4 W kg−1. The effect of adding Zn and Mn to the Co3S4 on energy band structure and density of states during the sulfidation process is calculated by the DFT. The HSC devices constructed by two series-connected ZMC-S/NF//AC can light a star made by ten 1.8 V-red Light Emitting Diodes (LEDs) for 10 minutes. © 2024

Keyword :

Activated carbon Activated carbon Cobalt compounds Cobalt compounds Density functional theory Density functional theory Electrochemical electrodes Electrochemical electrodes Manganese compounds Manganese compounds Musculoskeletal system Musculoskeletal system Nanoneedles Nanoneedles Supercapacitor Supercapacitor Ternary alloys Ternary alloys Transition metals Transition metals Zinc sulfide Zinc sulfide

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GB/T 7714 Wang, Hongtao , Zhao, Kun , Shao, Yanqun et al. ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors [J]. | Materials Today Communications , 2024 , 39 .
MLA Wang, Hongtao et al. "ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors" . | Materials Today Communications 39 (2024) .
APA Wang, Hongtao , Zhao, Kun , Shao, Yanqun , Xiao, Shengtao , Yang, Zhiguang , Chen, Zhe et al. ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors . | Materials Today Communications , 2024 , 39 .
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Self-assembled Gd 0.1 Ce 0.9 O 1.95-BaGd 0.8 La 0.2 Co 2 O 6-δ nanocomposite cathode for efficient protonic ceramic fuel cells SCIE
期刊论文 | 2024 , 50 (13) , 22574-22582 | CERAMICS INTERNATIONAL
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Abstract :

Protonic ceramic fuel cells (PCFCs) are characterized by a low activation energy for proton conduction and a high fuel utilization efficiency at low -to -intermediate temperatures. However, the sluggish oxygen reduction reaction kinetics on the cathodes drastically limit the power output performance of PCFCs. Herein, multiphase Gd 0.1 Ce 0.9 O 1.95 - BaGd 0.8 La 0.2 Co 2 O 6- delta (GDC-BGLC) nanocomposite cathodes are prepared by coupling selfassembly and sintering -free electrode construction methods. The nanocomposite cathode comprises mixed H + /e - conducting BGLC and O 2- conducting GDC and BaCoO 3 nanoparticles, and these phases are homogeneously mixed with coherent heterointerfaces. The nanocomposite cathode exhibits a significant increase in surface oxygen vacancies and three-phase boundaries, enhanced catalytic activity, and reduced activation energy for the oxygen reduction and water formation reactions. The results imply that the oxygen reduction and water formation reactions on the multiphase GDC-BGLC nanocomposite electrodes are most likely the dissociation, reduction and diffusion of oxygen species, which in turn is affected by the water vapor formed. An anodesupported single cell with the GDC-BGLC cathode exhibits a peak power density of 810 mW cm -2 at 700 degrees C with excellent operating stability at 650 degrees C for 110 h. This study provides a new strategy for the preparation of a high-performance and durable nanocomposite cathode for PCFCs.

Keyword :

Heterointerface Heterointerface Nanocomposite cathode Nanocomposite cathode Protonic ceramic fuel cells (PCFCs) Protonic ceramic fuel cells (PCFCs) Reaction mechanism Reaction mechanism Self -assembly Self -assembly

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GB/T 7714 Liao, Dan , Jia, Lichao , Xu, Jianghui et al. Self-assembled Gd 0.1 Ce 0.9 O 1.95-BaGd 0.8 La 0.2 Co 2 O 6-δ nanocomposite cathode for efficient protonic ceramic fuel cells [J]. | CERAMICS INTERNATIONAL , 2024 , 50 (13) : 22574-22582 .
MLA Liao, Dan et al. "Self-assembled Gd 0.1 Ce 0.9 O 1.95-BaGd 0.8 La 0.2 Co 2 O 6-δ nanocomposite cathode for efficient protonic ceramic fuel cells" . | CERAMICS INTERNATIONAL 50 . 13 (2024) : 22574-22582 .
APA Liao, Dan , Jia, Lichao , Xu, Jianghui , Chen, Zhiyi , Huang, Jiongyuan , Ai, Na et al. Self-assembled Gd 0.1 Ce 0.9 O 1.95-BaGd 0.8 La 0.2 Co 2 O 6-δ nanocomposite cathode for efficient protonic ceramic fuel cells . | CERAMICS INTERNATIONAL , 2024 , 50 (13) , 22574-22582 .
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Self-assembled Gd0.1Ce0.9O1.95-BaGd0.8La0.2Co2O6‒δ nanocomposite cathode for efficient protonic ceramic fuel cells EI
期刊论文 | 2024 , 50 (13) , 22574-22582 | Ceramics International
Self-assembled Gd0.1Ce0.9O1.95-BaGd0.8La0.2Co2O6‒δ nanocomposite cathode for efficient protonic ceramic fuel cells Scopus
期刊论文 | 2024 , 50 (13) , 22574-22582 | Ceramics International
Study on the Photocatalytic Degradation of MB by the ZnO@PDA and ZnO-Ag@PDA SCIE
期刊论文 | 2024 , 84 , 67-81 | JOURNAL OF NANO RESEARCH
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Abstract :

Photocatalysis properties enhanced by metal and organic polymer has been received more interest because of their ability to directly or indirectly degrade pollutants. The effect of PDA (polydopamine) and Ag nanoparticles on the different phases of ZnO to degrade organic dyes under visible (vis) and Ultra-violet-visible (UV-vis) light was investigated. ZnO@PDA, ZnO-Ag, and ZnOAg@PDA nanoparticles were synthesized. It's shown that Ag particles with sizes of less than 20 nm were deposited evenly on the ZnO. There were a few changes in the structure of ZnO@PDA or ZnOAg @PDA. When the ZnO was coated by PDA, the photocatalytic activity could be enhanced. The photocatalytic activity under UV-vis and visible light of the ZnO@PDA were effectively improved. The degradation rate of ZnO-Ag@PDA was 97.9% under UV-vis light for 20 mins, which was 16.1% higher than that of ZnO. The photocatalytic activity of ZnO-Ag@PDA reached the maximum after polymerizing for 2 hours. The photocatalytic efficiency of ZnO-Ag@PDA-2h under UV-vis for 30 minutes can reach higher than 99.01%. The photocatalytic performance decreased rapidly with the increasing cycles. When the number of cycles was 5, the degradation rate was 65.84%. Afterward, the degradation rate changed small and became stable.

Keyword :

Ag Nanoparticles Ag Nanoparticles MB degradation MB degradation PDA polymerization time PDA polymerization time Photocatalysis Photocatalysis ZnO-Ag@PDA ZnO-Ag@PDA

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GB/T 7714 Li, Yong , Chen, Yaliang , Shao, Yanqun . Study on the Photocatalytic Degradation of MB by the ZnO@PDA and ZnO-Ag@PDA [J]. | JOURNAL OF NANO RESEARCH , 2024 , 84 : 67-81 .
MLA Li, Yong et al. "Study on the Photocatalytic Degradation of MB by the ZnO@PDA and ZnO-Ag@PDA" . | JOURNAL OF NANO RESEARCH 84 (2024) : 67-81 .
APA Li, Yong , Chen, Yaliang , Shao, Yanqun . Study on the Photocatalytic Degradation of MB by the ZnO@PDA and ZnO-Ag@PDA . | JOURNAL OF NANO RESEARCH , 2024 , 84 , 67-81 .
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Study on the Photocatalytic Degradation of MB by the ZnO@PDA and ZnO-Ag@PDA Scopus
期刊论文 | 2024 , 84 , 67-81 | Journal of Nano Research
Study on the Photocatalytic Degradation of MB by the ZnO@PDA and ZnO-Ag@PDA EI
期刊论文 | 2024 , 84 , 67-81 | Journal of Nano Research
Enabling stable operation of Ba0.5Sr0.5Co0.8Fe0.2O3-δ based multiphase nanocomposite cathode for efficient intermedium temperature solid oxide fuel cells SCIE
期刊论文 | 2024 , 50 (22) , 46822-46830 | CERAMICS INTERNATIONAL
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Abstract :

Perovskite oxide Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) is a highly active cathode material widely studied for intermediate temperature solid oxide fuel cells (IT-SOFCs), however, the tendency of phase transition of BSCF under IT-SOFC operating conditions poses a critical challenge for its reliable applications. Here, a multiphase BSCFGd0.1Ce0.9O1.95 (GDC) nanocomposite with heterogeneous interfaces is synthesized at a relatively low calcination temperature of 750 degrees C. Both the multiphase composition and microstructural morphology of the nanocomposite are very stable during annealing at 750 degrees C. The unique multiphase structure and ultrafine microstructure of the nanocomposite can be maintained in the resultant cathode through a sintering-free direct assembly fabrication method. As a consequence, a corresponding single cell based on the BSCF-GDC nanocomposite cathode generates a maximum power density of 1.41 W cm(-2) at 750 degrees C with outstanding galvanostatic stability for 100 h. This work provides an effective means for the design and utilization of highly active BSCF-based nanocomposite cathodes for durable IT-SOFCs.

Keyword :

BSCF BSCF Phase transition Phase transition Sintering-free direct assembly Sintering-free direct assembly Solid oxide fuel cells Solid oxide fuel cells

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GB/T 7714 Chen, Kongfa , Yang, Haoran , Chen, Zhiyi et al. Enabling stable operation of Ba0.5Sr0.5Co0.8Fe0.2O3-δ based multiphase nanocomposite cathode for efficient intermedium temperature solid oxide fuel cells [J]. | CERAMICS INTERNATIONAL , 2024 , 50 (22) : 46822-46830 .
MLA Chen, Kongfa et al. "Enabling stable operation of Ba0.5Sr0.5Co0.8Fe0.2O3-δ based multiphase nanocomposite cathode for efficient intermedium temperature solid oxide fuel cells" . | CERAMICS INTERNATIONAL 50 . 22 (2024) : 46822-46830 .
APA Chen, Kongfa , Yang, Haoran , Chen, Zhiyi , Huang, Jiongyuan , Qian, Jiaqi , Yue, Zhongwei et al. Enabling stable operation of Ba0.5Sr0.5Co0.8Fe0.2O3-δ based multiphase nanocomposite cathode for efficient intermedium temperature solid oxide fuel cells . | CERAMICS INTERNATIONAL , 2024 , 50 (22) , 46822-46830 .
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Enabling stable operation of Ba0.5Sr0.5Co0.8Fe0.2O3‒δ based multiphase nanocomposite cathode for efficient intermedium temperature solid oxide fuel cells EI
期刊论文 | 2024 , 50 (22) , 46822-46830 | Ceramics International
Enabling stable operation of Ba0.5Sr0.5Co0.8Fe0.2O3‒δ based multiphase nanocomposite cathode for efficient intermedium temperature solid oxide fuel cells Scopus
期刊论文 | 2024 , 50 (22) , 46822-46830 | Ceramics International
ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors SCIE
期刊论文 | 2024 , 39 | MATERIALS TODAY COMMUNICATIONS
Abstract&Keyword Cite Version(2)

Abstract :

Transition metal sulfides are used in the field of supercapacitors due to their remarkable electrical conductivity and superior energy density. However, few research has been conducted on how the sulfidation process affects the structure and electrochemical properties of electrodes. The nanoneedle array Zn-Mn-Co sulfide (ZMC-S/NF) electrode is prepared by directly growing on nickel foam (NF) via a two-step hydrothermal technique. During the first step, the Zn-Mn-Co carbonate hydroxide nanoneedle skeleton can be obtained. During the second step, the nanoneedle skeletons are etched, and rough nanoneedle arrays are created by the introduced sulfur ions,i.e., the sulfidation process. The ZMC-S/NF electrode exhibits a specific capacity of 1401.0 C g-1 at 2 A g-1. It still has excellent rate performance with a specific capacity of 1015.3 C g-1 at 20 A g-1. Moreover, it exhibits excellent cycling stability with 81.9% capacity retention after 10,000 cycles. ZMC-S/NF as the cathode and activated carbon (AC) as the anode are assembled to be a hybrid supercapacitor (HSC), which has an energy density of 43.4 Wh kg-1 at a power density of 700.4 W kg-1. The effect of adding Zn and Mn to the Co3S4 on energy band structure and density of states during the sulfidation process is calculated by the DFT. The HSC devices constructed by two series-connected ZMC-S/NF//AC can light a star made by ten 1.8 V-red Light Emitting Diodes (LEDs) for 10 minutes.

Keyword :

Density functional theory Density functional theory Hybrid supercapacitors Hybrid supercapacitors Sulfidation Sulfidation ZnMnCo-S ZnMnCo-S

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GB/T 7714 Wang, Hongtao , Zhao, Kun , Shao, Yanqun et al. ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors [J]. | MATERIALS TODAY COMMUNICATIONS , 2024 , 39 .
MLA Wang, Hongtao et al. "ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors" . | MATERIALS TODAY COMMUNICATIONS 39 (2024) .
APA Wang, Hongtao , Zhao, Kun , Shao, Yanqun , Xiao, Shengtao , Yang, Zhiguang , Chen, Zhe et al. ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors . | MATERIALS TODAY COMMUNICATIONS , 2024 , 39 .
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ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors EI
期刊论文 | 2024 , 39 | Materials Today Communications
ZnMnCo-S nanoneedle arrays as battery-type eletrodes for high-performance hybrid supercapacitors Scopus
期刊论文 | 2024 , 39 | Materials Today Communications
A battery-type cathode with RuO2 modified Ni11 (HPO3 )8(OH)6 for asymmetric supercapacitors SCIE
期刊论文 | 2024 , 488 | ELECTROCHIMICA ACTA
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Abstract :

Phosphates are a kind of promising electrode materials because they can provide numerous cavities and several reaction sites to be favored for storing anions and cations. However, the widespread application of phosphates are limited by their intrinsically low electronic conductivity. RuO 2 /hydrated RuO 2 exhibits high conductivity and excellent electrochemical properties. Reducing its dosage and increasing its specific surface area are the research concerns. Combining less RuO 2 to Nickel phosphate (NiP) is expected to improve the electrochemical performance. RuO 2 -modified NiP (NiP-RuO 2 ) electrode material is synthesized by a one-step hydrothermal reaction and its structural morphology and capacitive properties are investigated. The results indicate that NiPRuO 2 electrode consists of hydrated RuO 2 and Ni 11 (HPO 3 ) 8 (OH) 6 , and exhibits excellent battery -type electrochemical supercapacitor performance with a specific capacity of 878.06 C/g at 1 A/g. According to density functional theory (DFT) analysis, Ru-doped Ni 11 (HPO 3 ) 8 (OH) 6 has a narrower forbidden band width and higher conductivity than Ni 11 (HPO 3 ) 8 (OH) 6 . Furthermore, the asymmetric supercapacitor (ASC) assembled by NiPRuO 2 /NF and activated carbon (AC) electrode achieves a high energy density (43.58 Wh/kg) at a power density of 923.47 W/kg. When two ASC devices are connected in series, ten light -emitting diodes (LEDs) can be illuminated for ten minutes.

Keyword :

Asymmetric supercapacitors Asymmetric supercapacitors DFT DFT HydratedRuO2 HydratedRuO2 Ni11(HPO3)8(OH)6 Ni11(HPO3)8(OH)6

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GB/T 7714 Zhao, Kun , Wang, Hongtao , Shao, Yanqun et al. A battery-type cathode with RuO2 modified Ni11 (HPO3 )8(OH)6 for asymmetric supercapacitors [J]. | ELECTROCHIMICA ACTA , 2024 , 488 .
MLA Zhao, Kun et al. "A battery-type cathode with RuO2 modified Ni11 (HPO3 )8(OH)6 for asymmetric supercapacitors" . | ELECTROCHIMICA ACTA 488 (2024) .
APA Zhao, Kun , Wang, Hongtao , Shao, Yanqun , Yang, Zhiguang , Chen, Zhe , Chen, Kongfa et al. A battery-type cathode with RuO2 modified Ni11 (HPO3 )8(OH)6 for asymmetric supercapacitors . | ELECTROCHIMICA ACTA , 2024 , 488 .
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A battery-type cathode with RuO2 modified Ni11(HPO3)8(OH)6 for asymmetric supercapacitors Scopus
期刊论文 | 2024 , 488 | Electrochimica Acta
A battery-type cathode with RuO2 modified Ni11(HPO3)8(OH)6 for asymmetric supercapacitors EI
期刊论文 | 2024 , 488 | Electrochimica Acta
High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode SCIE
期刊论文 | 2024 , 346 | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
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Abstract :

La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) with an extraordinary oxygen-ion conductivity has been extensively studied as an electrolyte material for intermediate temperature solid oxide cells (SOCs). However, the conventional hightemperature sintering process of electrodes results in detrimental reaction between LSGM and Ni-based hydrogen electrode and microstructural coarsening of the electrode. Herein, a buffer-layer-free LSGM electrolyte-supported single cell with a nanostructured Ni-Gd0.1Ce0.9O1.95 (GDC) electrode is developed using a sintering-free fabrication approach. The cell exhibits a peak power density of 1.23 W cm-2 at 800 degrees C and an electrolysis current density of 1.85 A cm-2 at 1.5 V with excellent operating stability. The good performance and durability is owing to the synergistic effects of the elimination of elemental interdiffusion at the electrode/ electrolyte interface, polarization induced in situ formation of hetero-interfaces between Ni-GDC and LSGM, and remarkable structural stability of Ni-GDC. This study provides an innovative means for the development of efficient and durable buffer-layer-free LSGM-supported SOCs.

Keyword :

Buffer -layer -free Buffer -layer -free Elemental interdiffusion Elemental interdiffusion Interface formation Interface formation Nanostructure Nanostructure Sintering -free Sintering -free

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GB/T 7714 Qian, Jiaqi , Lin, Changgen , Chen, Zhiyi et al. High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 346 .
MLA Qian, Jiaqi et al. "High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 346 (2024) .
APA Qian, Jiaqi , Lin, Changgen , Chen, Zhiyi , Huang, Jiongyuan , Ai, Na , Jiang, San Ping et al. High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2024 , 346 .
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High-performance, stable buffer-layer-free La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte-supported solid oxide cell with a nanostructured nickel-based hydrogen electrode Scopus
期刊论文 | 2024 , 346 | Applied Catalysis B: Environmental
Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells SCIE
期刊论文 | 2024 , 44 (6) , 3818-3823 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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Abstract :

Perovskite oxide La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) is an intermedium-temperature solid oxide cell electrolyte material with extraordinary oxygen-ion conductivity. However, the manufacturing procedures of LSGM discs are complex involving multiple steps of powder preparation, forming, and sintering at high temperatures. Herein, thin LSGM electrolyte discs are prepared by coupling of tape casting and in situ solid-state reaction using oxides/carbonates as the feedstock. A pure-phase LSGM electrolyte disc with uniform elemental distribution is obtained by sintering at 1450 degrees C, and it possesses an ionic conductivity of 0.105 S cm(1) at 800 degrees C, a thermal expansion coefficient of 12.2 x 10(6) K-1, and a bending strength of 156 MPa A 170 mu m thick LSGM electrolyte-supported single cell delivers a peak power density of 0.96 W cm(2) at 800 degrees C and an electrolysis current density of 1.82 A cm(2) at 1.5 V with no noticeable degradation for 200 h. The findings of this research provide a cost-effective approach for manufacturing the LSGM electrolytes of efficient and durable solid oxide cells.

Keyword :

Electrolyte-support Electrolyte-support LSGM LSGM Solid oxide cells Solid oxide cells Solid-state reaction Solid-state reaction Tape casting Tape casting

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GB/T 7714 Lin, Changgen , Zhang, Yongmei , Qian, Jiaqi et al. Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells [J]. | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY , 2024 , 44 (6) : 3818-3823 .
MLA Lin, Changgen et al. "Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells" . | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 44 . 6 (2024) : 3818-3823 .
APA Lin, Changgen , Zhang, Yongmei , Qian, Jiaqi , Chen, Zhiyi , Huang, Jiongyuan , Ai, Na et al. Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells . | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY , 2024 , 44 (6) , 3818-3823 .
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Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells Scopus
期刊论文 | 2024 , 44 (6) , 3818-3823 | Journal of the European Ceramic Society
Coupling of tape casting and in situ solid-state reaction for manufacturing La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte of efficient solid oxide cells EI
期刊论文 | 2024 , 44 (6) , 3818-3823 | Journal of the European Ceramic Society
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