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抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述
期刊论文 | 2025 , 53 (2) , 249-261 | 燃料化学学报(中英文)
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Abstract :

固体氧化物电池(SOCs)是一种高效的能量存储和转换装置.然而,在SOCs运行条件下,Fe-Cr合金连接体表面挥发的铬蒸气容易沉积在空气极,导致SOCs电化学性能和长期稳定性的严重衰减.本微型综述首先介绍了燃料电池和电解模式下空气极的铬沉积和中毒现象及其相关机制,继而重点介绍学界在抑制铬中毒策略上的研究进展.本微型综述将为高活性、耐铬毒化SOCs空气极的理性设计和开发提供参考.

Keyword :

固体氧化物电池 固体氧化物电池 空气极 空气极 表面改性 表面改性 铬中毒 铬中毒

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GB/T 7714 黄炯元 , 陈志逸 , 罗玉洁 et al. 抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述 [J]. | 燃料化学学报(中英文) , 2025 , 53 (2) : 249-261 .
MLA 黄炯元 et al. "抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述" . | 燃料化学学报(中英文) 53 . 2 (2025) : 249-261 .
APA 黄炯元 , 陈志逸 , 罗玉洁 , 艾娜 , 蒋三平 , 陈孔发 . 抑制固体氧化物电池空气极铬中毒策略的研究进展:微型综述 . | 燃料化学学报(中英文) , 2025 , 53 (2) , 249-261 .
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Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells SCIE
期刊论文 | 2025 | RARE METALS
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Abstract :

Protonic ceramic fuel cells (PCFCs) are promising for efficient, clean energy conversion at low to intermediate temperatures, but the widely used BaZr0.1Ce0.7Y0.1Yb0.1O3-delta (BZCYYb) electrolyte has poor chemical stability in humid environments. Herein, we show that under oxygen reduction reaction (ORR) conditions, water accumulates at the BaGd0.8La0.2Co2O6-delta (BGLC) cathode-BZCYYb electrolyte interface, causing selective loss of Ba cations and decomposition of BZCYYb electrolyte. The introduction of triply ion-electron conducting La2Ce2O7-delta (LCeO) into the BGLC cathode expands its active reaction area, accelerates ORR kinetics, and suppresses water accumulation at the cathode-electrolyte interface and electrolyte decomposition. A single cell with the BGLC-LCeO composite cathode achieves a peak power density of 1.07 W cm(-2) at 700 degrees C, with no profound degradation at 0.5 A cm(-2) over 100 h. These findings provide guidance for the development of high-performance, durable PCFCs.

Keyword :

Chemical stability Chemical stability Direct assembly Direct assembly Nanocomposite cathode Nanocomposite cathode Water accumulation Water accumulation

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GB/T 7714 Huang, Xin-Rong , Qian, Jia-Qi , Zhang, Hai-Peng et al. Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells [J]. | RARE METALS , 2025 .
MLA Huang, Xin-Rong et al. "Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells" . | RARE METALS (2025) .
APA Huang, Xin-Rong , Qian, Jia-Qi , Zhang, Hai-Peng , Chen, Zhi-Yi , Lin, Chang-Gen , Huang, Jiong-Yuan et al. Mitigating the decomposition phenomenon at the cathode-electrolyte interface of protonic ceramic fuel cells . | RARE METALS , 2025 .
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Mitigating the decomposition phenomenon at the cathode–electrolyte interface of protonic ceramic fuel cells Scopus
期刊论文 | 2025 | Rare Metals
Efficient and Robust Nanocomposite Cermet Anode with Strong Metal-Oxide Interaction for Direct Ammonia Solid Oxide Fuel Cells SCIE
期刊论文 | 2025 | ADVANCED FUNCTIONAL MATERIALS
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Abstract :

Direct ammonia solid oxide fuel cells (DA-SOFCs) offer a promising pathway for the efficient utilization of carbon-free ammonia fuel. However, the nitridation of nickel-based cermet anodes in ammonia causes rapid microstructural coarsening, leading to durability problems. Herein, an efficient, ammonia-tolerant Fe-modified Ni-Gd0.1Ce0.9O1.95 (NiFe-GDC) nanocomposite anode is developed by coupling a self-assembly synthesis process with a sintering-free electrode fabrication technique. The as-synthesized nanocomposite oxides self-assemble into multiple phases, with GDC firmly grown on preformed NiO and NiFe2O4 nanoparticles, which are subsequently in situ alloyed in a reducing atmosphere to form a unique NiFe@GDC encapsulation structure with strong metal-oxide interactions. This NiFe-GDC nanocomposite not only provides abundant active sites for ammonia decomposition and electrochemical oxidation, but also exhibits exceptional resistance to nitridation and microstructural coarsening. Density functional theory calculations reveal that in situ-formed NiFe alloy lowers the energy barriers for ammonia adsorption and dehydrogenation while enhancing the nitrogen desorption process. An electrolyte-supported DA-SOFC with the NiFe-GDC nanocomposite anode achieves a peak power density of 0.61 W cm(-2) at 800 degrees C and exhibits outstanding operational stability for 100 h. This work offers new insights into the development of active and durable nickel-based nanocomposite anodes for DA-SOFCs.

Keyword :

direct ammonia solid oxide fuel cells direct ammonia solid oxide fuel cells NiFe alloy nanocomposite anode NiFe alloy nanocomposite anode nitridation nitridation self-assembly self-assembly sintering-free electrode fabrication sintering-free electrode fabrication

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GB/T 7714 Zhang, Haipeng , Xiong, Rui , Chen, Zhiyi et al. Efficient and Robust Nanocomposite Cermet Anode with Strong Metal-Oxide Interaction for Direct Ammonia Solid Oxide Fuel Cells [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 .
MLA Zhang, Haipeng et al. "Efficient and Robust Nanocomposite Cermet Anode with Strong Metal-Oxide Interaction for Direct Ammonia Solid Oxide Fuel Cells" . | ADVANCED FUNCTIONAL MATERIALS (2025) .
APA Zhang, Haipeng , Xiong, Rui , Chen, Zhiyi , Cheng, Zixiang , Huang, Jiongyuan , Sa, Baisheng et al. Efficient and Robust Nanocomposite Cermet Anode with Strong Metal-Oxide Interaction for Direct Ammonia Solid Oxide Fuel Cells . | ADVANCED FUNCTIONAL MATERIALS , 2025 .
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Efficient and Robust Nanocomposite Cermet Anode with Strong Metal–Oxide Interaction for Direct Ammonia Solid Oxide Fuel Cells Scopus
期刊论文 | 2025 | Advanced Functional Materials
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
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
Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells SCIE
期刊论文 | 2024 , 34 (26) | ADVANCED FUNCTIONAL MATERIALS
WoS CC Cited Count: 19
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Abstract :

A challenge hindering the development of durable solid oxide fuel cells (SOFCs) is the significant performance degradation of cathodes owing to poisoning by volatile Cr originating from the FeCr alloy interconnect. Herein, a heterogeneous catalyst coating, composed of Ba1-xCe0.8Gd0.2O3-delta and BaCO3, remarkably improves the oxygen adsorption, dissociation capability, and Cr resistance of a La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) cathode is demonstrated. The coherent heterointerface interactions formed between the catalyst coating and LSCF result in varied levels of surface strain and electrostatic interactions, significantly suppressing Sr surface segregation on LSCF. A single cell with the catalyst coating-decorated LSCF (CC-LSCF) achieves a peak power density of 1.73 W cm-2 at 750 degrees C, with no noticeable performance degradation for 100 h. The CC-LSCF cathode also exhibits outstanding durability under accelerated Cr poisoning conditions, compared with the tremendous degradation rate of 0.42% h-1 for the bare LSCF cathode. The enhanced Cr resistance is attributed to synergy induced by the stabilization of the lattice Sr cations by heterointerface interactions and the remarkable structural stability of the catalyst coating under Cr poisoning conditions. The novel heterointerface engineering strategy in this study provides insight into the design and development of active and Cr-tolerant cathodes. A heterogeneous catalyst coating composed of Ba1-xCe0.8Gd0.2O3-delta and BaCO3 remarkably improves the oxygen adsorption, dissociation capability, and Cr tolerance of La0.6Sr0.4Co0.2Fe0.8O3-delta cathode. The enhanced Cr tolerance is attributed to synergy induced by the stabilization of the lattice Sr cations by heterointerface interactions and the remarkable structural stability of the catalyst coating under Cr poisoning conditions. image

Keyword :

chromium tolerance chromium tolerance heterointerfaces heterointerfaces solid oxide fuel cells solid oxide fuel cells Sr surface segregation Sr surface segregation strain strain

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GB/T 7714 Huang, Jiongyuan , Liang, Fujun , Zhao, Sunce et al. Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (26) .
MLA Huang, Jiongyuan et al. "Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells" . | ADVANCED FUNCTIONAL MATERIALS 34 . 26 (2024) .
APA Huang, Jiongyuan , Liang, Fujun , Zhao, Sunce , Zhao, Ling , Ai, Na , Jiang, San Ping et al. Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (26) .
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Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells
期刊论文 | 2024 , 34 (26) , n/a-n/a | Advanced Functional Materials
Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells EI
期刊论文 | 2024 , 34 (26) | Advanced Functional Materials
Heterogeneous Catalyst Coating for Boosting the Activity and Chromium Tolerance of Cathodes for Solid Oxide Fuel Cells Scopus
期刊论文 | 2024 , 34 (26) | Advanced Functional Materials
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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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
BaCeO_3修饰La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3–δ)纳米结构阴极的耐铬毒化性能研究 PKU
期刊论文 | 2024 , (02) , 366-373 | 陶瓷学报
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Abstract :

金属连接体产生的含铬蒸气使固体氧化物燃料电池(SOFC)的阴极性能发生快速衰减,是SOFC电堆的主要衰减机制之一。通过在La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3–δ)(LSCF)阴极上修饰BaCeO_3(BCO)纳米颗粒,有效提高了阴极的电催化活性和在加速铬中毒条件下的运行稳定性。BCO颗粒既能抑制LSCF表面Sr偏析,又能优先与连接体表面的Cr_2O_3发生反应,在电极表面生成导电的BaCrO_4阻挡层,隔绝了阴极与连接体的直接接触,避免了SrCrO_4的生成。这两个因素的协同作用显著增强了BCO-LSCF阴极的耐铬毒化性能。

Keyword :

LSCF LSCF Sr表面析出 Sr表面析出 固体氧化物燃料电池(SOFC) 固体氧化物燃料电池(SOFC) 浸渍BaCeO_3 浸渍BaCeO_3 铬中毒 铬中毒

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GB/T 7714 艾娜 . BaCeO_3修饰La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3–δ)纳米结构阴极的耐铬毒化性能研究 [J]. | 陶瓷学报 , 2024 , (02) : 366-373 .
MLA 艾娜 . "BaCeO_3修饰La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3–δ)纳米结构阴极的耐铬毒化性能研究" . | 陶瓷学报 02 (2024) : 366-373 .
APA 艾娜 . BaCeO_3修饰La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3–δ)纳米结构阴极的耐铬毒化性能研究 . | 陶瓷学报 , 2024 , (02) , 366-373 .
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BaCeO3修饰La0.6Sr0.4Co0.2Fe0.8O3-δ纳米结构阴极的耐铬毒化性能研究 PKU
期刊论文 | 2024 , 45 (2) , 366-373 | 陶瓷学报
BaCeO_3修饰La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3–δ)纳米结构阴极的耐铬毒化性能研究 PKU
期刊论文 | 2024 , 45 (02) , 366-373 | 陶瓷学报
Surface Chemistry Modulation of BaGd0.8La0.2Co2O6-δ As Active Air Electrode for Solid Oxide Cells SCIE
期刊论文 | 2024 , 16 (24) , 31181-31190 | ACS APPLIED MATERIALS & INTERFACES
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Abstract :

Modulation of the surface chemistry of air electrodes makes it possible to significantly improve the electrocatalytic performance of solid oxide cells (SOCs). Here, the surface chemistry of BaGd0.8La0.2Co2O6-delta (BGLC) double perovskite is modulated by treatment in an acidic citric acid solution. The treatment leads to corrosion on the surface of BGLC particles, and the effect is dependent on the acidity of the solution. As the acidity of solution is low, Ba cations are selectively dissolved out of the BGLC surface, while as the acidity increases, the corrosion becomes more homogeneous. The Ba surface deficiency remarkably increases the concentration of surface oxygen vacancies and electrocatalytic activity of BGLC. To avoid the loss of Ba-deficient surface during the conventional high temperature sintering process, a sintering-free fabrication route is utilized to directly assemble the Ba-deficient BGLC powder into an air electrode. A single cell with the surface Ba-deficient BGLC electrode shows a peak power density of 1.04 W cm(-2) at 750 degrees C and an electrolysis current density of 1.48 A cm(-2) at 1.3 V, much greater than 0.64 W cm(-2) and 1.02 A cm(-2) of the cell with the pristine BGLC, respectively. This work provides a simple and effective surface chemistry modulation strategy for the development of an efficient air electrode for SOCs.

Keyword :

A-sitedeficiency A-sitedeficiency double perovskite double perovskite selectivecorrosion selectivecorrosion solid oxide cells solid oxide cells surface chemistry modulation surface chemistry modulation

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GB/T 7714 Chen, Kongfa , Weng, Qiaohang , Yue, Zhongwei et al. Surface Chemistry Modulation of BaGd0.8La0.2Co2O6-δ As Active Air Electrode for Solid Oxide Cells [J]. | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (24) : 31181-31190 .
MLA Chen, Kongfa et al. "Surface Chemistry Modulation of BaGd0.8La0.2Co2O6-δ As Active Air Electrode for Solid Oxide Cells" . | ACS APPLIED MATERIALS & INTERFACES 16 . 24 (2024) : 31181-31190 .
APA Chen, Kongfa , Weng, Qiaohang , Yue, Zhongwei , Huang, Jiongyuan , Qian, Jiaqi , Chen, Zhiyi et al. Surface Chemistry Modulation of BaGd0.8La0.2Co2O6-δ As Active Air Electrode for Solid Oxide Cells . | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (24) , 31181-31190 .
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Surface Chemistry Modulation of BaGd0.8La0.2Co2O6−δ As Active Air Electrode for Solid Oxide Cells EI
期刊论文 | 2024 , 16 (24) , 31181-31190 | ACS Applied Materials and Interfaces
Surface Chemistry Modulation of BaGd0.8La0.2Co2O6−δ As Active Air Electrode for Solid Oxide Cells Scopus
期刊论文 | 2024 , 16 (24) , 31181-31190 | ACS Applied Materials and Interfaces
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