Journal Article10.1021/ACSSUSCHEMENG.9B01183
Nano-CeO2-Modified Cathodes for Direct Electrochemical CO2 Reduction in Solid Oxide Electrolysis Cells
Lixiao Zhang,Lixiao Zhang,Shiqing Hu,Shiqing Hu,Wenping Li,Zhongwei Cao,Huanying Liu,Xuefeng Zhu,Weishen Yang +8 more
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TL;DR: In this article, nano-CeO2-modified cathodes were successfully impregnated into an LSCM-Gd0.5O3-δ composite cathode to investigate its effects on the CO2 electrochemical reduction.
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Abstract: La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCM) is a promising cathode for CO2 electroreduction in solid oxide electrolysis cells (SOECs), but its low catalytic activity limits the performance of SOECs. In this work, CeO2 nanoparticles with a size of 3–5 nm were successfully impregnated into an LSCM-Gd0.1Ce0.9O1.95 (GDC) composite cathode to investigate its effects on the CO2 electrochemical reduction. The introduction of CeO2 nanoparticles on the LSCM-GDC cathodes can create more three-phase boundaries (TPBs), improve the CO2 adsorption capability, and facilitate the transportation of oxygen ions between the cathode and the electrolyte. Therefore, the nano-CeO2-modified cathodes show better performance than the conventional LSCM-GDC cathode. The maximum current density of the nano-CeO2-modified cathode is about 90% higher than that of the conventional LSCM-GDC cathode at 1.4 V and 800 °C. Therefore, loading nano-CeO2 onto the LSCM-GDC backbone is an effective way to improve the electrocatalytic performance of the conv...
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Citations
Efficient reversible CO/CO2 conversion in solid oxide cells with a phase-transformed fuel electrode
Yihang Li,Manish Singh,Zechao Zhuang,Yifu Jing,Fengjiao Li,Kristina Maliutina,Chuanxin He,Liangdong Fan +7 more
TL;DR: In this paper, a phase-transformed CoFe-Sr3Fe1.25Mo0.75O7−δ (CoFe-SFM) fuel electrode consisting of CoFe nanoparticles and Ruddlesden-Popper-layered Sr3Fe 1.5Co1/3O6−ε (SFMCo) perovskite oxide after annealing in hydrogen and apply it to reversible CO/CO2 conversion in RSOC.
An all-oxide electrolysis cells for syngas production with tunable H2/CO yield via co-electrolysis of H2O and CO2
Liuzhen Bian,Liuzhen Bian,Liuzhen Bian,Chuancheng Duan,Lijun Wang,Zhiyuan Chen,Yunting Hou,Jun Peng,Xiwen Song,Shengli An,Ryan O'Hayre +10 more
TL;DR: In this paper, a tunable H2/CO and coke-free operation is achieved in a solidoxide electrolysis cell (SOEC), where Ni-Fe alloy nanoparticles are uniformly distributed and socketed on the LSFNi backbone, enabling efficient co-electrolysis of H2O and CO2 to H2 and CO.
37
Iron stabilized 1/3 A-site deficient La–Ti–O perovskite cathodes for efficient CO2 electroreduction
Shiqing Hu,Shiqing Hu,Lixiao Zhang,Lixiao Zhang,Lili Cai,Zhongwei Cao,Qike Jiang,Wenguang Yu,Yongkuan Wu,Xuefeng Zhu,Xuefeng Zhu,Weishen Yang,Weishen Yang +12 more
TL;DR: In this article, 1/3 A-site deficient perovskite cathodes La0.66Ti0.8Fe0.2O3−δ (x = 0.2, 0.3 and 0.4) without alkaline-earth elements are synthesized.
31
Nanotechnologies in ceramic electrochemical cells.
Jia-Xin Cao,Yuexia Ji,Zongping Shao +2 more
TL;DR: Nanotechnologies in ceramic electrochemical cells focus on improving the material performances of electrolytes and electrodes to enhance cell efficiency and stability. The use of nanomaterials in electrolyte and electrode design leads to improved catalytic activities, high stabilities, and low-cost materials.
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Ca-Fe co-doped La0.75Sr0.25Cr0.5Mn0.5O3 cathodes with high electrocatalytic activity for direct CO2 electrolysis in solid oxide electrolysis cells
Yifeng Zheng,goldetgqhm +1 more
- 01 Jan 2023
TL;DR: In this paper , Fe-doped LSCCM, La0.75Sr0.2Ca0.05Cr0.5Mn0.1, 0.5O3 (LSCCM) fabricated in previous work shows a relatively satisfying electrocatalytic performance and is expected to be further optimized.
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