In operando‐formed interface between silver and perovskite oxide for efficient electroreduction of carbon dioxide to carbon monoxide

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dc.contributor.authorWu, XHen_AU
dc.contributor.authorGuo, Yen_AU
dc.contributor.authorGu, Yen_AU
dc.contributor.authorXie, Fen_AU
dc.contributor.authorLi, Men_AU
dc.contributor.authorHu, Zen_AU
dc.contributor.authorLin, HJen_AU
dc.contributor.authorPao, CWen_AU
dc.contributor.authorHuang, YCen_AU
dc.contributor.authorDong, CLen_AU
dc.contributor.authorPeterson, VKen_AU
dc.contributor.authorRan, Ren_AU
dc.contributor.authorZhou, Wen_AU
dc.contributor.authorShao, ZPen_AU
dc.date.accessioned2024-10-04T00:30:57Zen_AU
dc.date.available2024-10-04T00:30:57Zen_AU
dc.date.issued2023-04en_AU
dc.date.statistics2024-09-11en_AU
dc.description.abstractElectrochemical carbon dioxide (CO2) reduction (ECR) is a promising technology to produce valuable fuels and feedstocks from CO2. Despite large efforts to develop ECR catalysts, the investigation of the catalytic performance and electrochemical behavior of complex metal oxides, especially perovskite oxides, is rarely reported. Here, the inorganic perovskite oxide Ag‐doped (La0.8Sr0.2)0.95Ag0.05MnO3–δ (LSA0.05M) is reported as an efficient electrocatalyst for ECR to CO for the first time, which exhibits a Faradaic efficiency (FE) of 84.3%, a remarkable mass activity of 75 A g−1 (normalized to the mass of Ag), and stability of 130 h at a moderate overpotential of 0.79 V. The LSA0.05M catalyst experiences structure reconstruction during ECR, creating the in operando‐formed interface between the perovskite and the evolved Ag phase. The evolved Ag is uniformly distributed with a small particle size on the perovskite surface. Theoretical calculations indicate the reconstruction of LSA0.05M during ECR and reveal that the perovskite–Ag interface provides adsorption sites for CO2 and accelerates the desorption of the *CO intermediate to enhance ECR. This study presents a novel high‐performance perovskite catalyst for ECR and may inspire the future design of electrocatalysts via the in operando formation of metal–metal oxide interfaces. © 2022 The Authors. Carbon Energy published by Wenzhou University and John Wiley & Sons - Open Access CC BY 4.0en_AU
dc.description.sponsorshipThe authors appreciate Dr. Daqin Guan and Dr. Jie Dai (College of Chemical Engineering, Nanjing Tech University) for their kind help in this study. We are grateful for access to ANSTO facilities and for NPD data obtained under proposal MI8046. The authors acknowledge the support from the High-Performance Computing Center of Nanjing Tech University for supporting the computational resources, the Australian Centre for Neutron Scattering, and the Max Planck-POSTECH-Hsinchu Center for Complex Phase Materials.en_AU
dc.identifier.articlenumbere278en_AU
dc.identifier.citationWu, X., Guo, Y., Gu, Y., Xie, F., Li, M., Hu, Z., Lin, H.-J., Pao, C.-W., Huang, Y.-C., Dong, C.-L., Peterson, V. K., Ran, R., Zhou, W., & Shao, Z. (2023). In operando-formed interface between silver and perovskite oxide for efficient electroreduction of carbon dioxide to carbon monoxide. Carbon Energy, 5(4), e278. doi:10.1002/cey2.278en_AU
dc.identifier.issn2096-9570en_AU
dc.identifier.issn2637-9368en_AU
dc.identifier.issue4en_AU
dc.identifier.journaltitleCarbon Energyen_AU
dc.identifier.urihttps://doi.org/10.1002/cey2.278en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15729en_AU
dc.identifier.volume5en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.subjectCarbon dioxideen_AU
dc.subjectCarbon monoxideen_AU
dc.subjectPerovskiteen_AU
dc.subjectOxidesen_AU
dc.subjectElectrochemistryen_AU
dc.subjectInorganic compoundsen_AU
dc.subjectAdsorptionen_AU
dc.subjectCatalystsen_AU
dc.titleIn operando‐formed interface between silver and perovskite oxide for efficient electroreduction of carbon dioxide to carbon monoxideen_AU
dc.typeJournal Articleen_AU
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