Gas-phase CO2 electrolysis using carbon-derived bismuth nanospheres on porous nickel foam gas diffusion electrode
DC Field | Value | Language |
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dc.contributor.author | Chanda, Debabrata | - |
dc.contributor.author | Lee, Sooin | - |
dc.contributor.author | Tufa, Ramato Ashu | - |
dc.contributor.author | Kim, Yu Jin | - |
dc.contributor.author | Xing, Ruimin | - |
dc.contributor.author | Meshesha, Mikiyas Mekete | - |
dc.contributor.author | Demissie, Taye B. | - |
dc.contributor.author | Liu, Shanhu | - |
dc.contributor.author | Pant, Deepak | - |
dc.contributor.author | Santoro, Sergio | - |
dc.contributor.author | Kim, Kyeounghak | - |
dc.contributor.author | Yang, Bee Lyong | - |
dc.date.accessioned | 2024-02-19T01:00:20Z | - |
dc.date.available | 2024-02-19T01:00:20Z | - |
dc.date.issued | 2024-02 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.issn | 1879-3487 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26610 | - |
dc.description.abstract | The successful electrochemical reduction of CO2 (eCO2R) into valuable fuels and chemicals relies on the development of low-cost, effective carbon-bonded metal catalysts. Carbon-bonded metal catalysts are crucial for efficient eCO2R due to their dual functionality-high electrical conductivity from carbon and catalytic activity from the metal. In this study, a facile hydrothermal method was used to synthesize carbon-derived bismuth oxide nanospheres (C-BiOx) on porous nickel foam (NF) electrodes as electrocatalysts for eCO2R. The eCO2R activity of this catalyst was evaluated in H-type cells and compared with commercially available Pd/C and Ag-nanoparticle catalysts. Our finding revealed that C-BiOx/NF exhibited a higher eCO2R activity (corresponding to the CO Faradaic efficiency (FE) of 16.2 % at -1 V vs. reversible hydrogen electrode (RHE) and HCOOH FE of 85.4 % at -0.7 V vs. RHE) than those of the Ag nanoparticle-based and Pd/C catalysts. Mechanistic insights from DFTbased studies further supported the enhanced catalytic activity of C-BiOx for HCOOH production over Ag catalysts. The fabricated catalyst was further utilized in a zero-gap CO2 electrolyzer for gas-phase CO2 reduction containing a self-supporting C-BiOx/NF gas diffusion layer (GDL). An anion exchange membrane-based CO2 electrolyzer demonstrated a higher FE for CO formation (47.1%) with an energy efficiency (EE) of 29.5% as compared to those of a polymer electrolyte membrane-based CO2 electrolyzer (FE: 25.2%, EE: 18.4%). Notably, the C-BiOx/NF catalyst exhibited remarkable stability (8 h) in the gas-phase GDL compared to that observed during the liquid-phase eCO2R. Our work provides new insights into utilizing improved catalyst designs in conjunction with flow cells for successful commercial implementation of this promising technology. | - |
dc.format.extent | 12 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Gas-phase CO2 electrolysis using carbon-derived bismuth nanospheres on porous nickel foam gas diffusion electrode | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1016/j.ijhydene.2023.12.234 | - |
dc.identifier.scopusid | 2-s2.0-85181696895 | - |
dc.identifier.wosid | 001155798200001 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.56, pp 1020 - 1031 | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.citation.volume | 56 | - |
dc.citation.startPage | 1020 | - |
dc.citation.endPage | 1031 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.subject.keywordPlus | ELECTROCHEMICAL REDUCTION | - |
dc.subject.keywordPlus | ELECTROCATALYTIC REDUCTION | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION | - |
dc.subject.keywordPlus | BIPOLAR MEMBRANE | - |
dc.subject.keywordPlus | DIOXIDE | - |
dc.subject.keywordPlus | BI | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | ELECTROREDUCTION | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | INSIGHTS | - |
dc.subject.keywordAuthor | Electrocatalyst | - |
dc.subject.keywordAuthor | Oxygen vacancy | - |
dc.subject.keywordAuthor | CO 2 reduction | - |
dc.subject.keywordAuthor | Electrolytic flow cell | - |
dc.subject.keywordAuthor | Gas diffusion electrode | - |
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