DC Field | Value | Language |
---|---|---|
dc.contributor.author | Fan, Qun | ko |
dc.contributor.author | Hou, Pengfei | ko |
dc.contributor.author | Choi, Changhyeok | ko |
dc.contributor.author | Wu, Tai-Sing | ko |
dc.contributor.author | Hong, Song | ko |
dc.contributor.author | Li, Fang | ko |
dc.contributor.author | Soo, Yun-Liang | ko |
dc.contributor.author | Kang, Peng | ko |
dc.contributor.author | Jung, Yousung | ko |
dc.contributor.author | Sun, Zhenyu | ko |
dc.date.accessioned | 2020-05-14T01:20:05Z | - |
dc.date.available | 2020-05-14T01:20:05Z | - |
dc.date.created | 2019-12-17 | - |
dc.date.created | 2019-12-17 | - |
dc.date.created | 2019-12-17 | - |
dc.date.issued | 2020-02 | - |
dc.identifier.citation | ADVANCED ENERGY MATERIALS, v.10, no.5 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274183 | - |
dc.description.abstract | Electrochemical reduction of carbon dioxide (CO2) to fuels and value-added industrial chemicals is a promising strategy for keeping a healthy balance between energy supply and net carbon emissions. Here, the facile transformation of residual Ni particle catalysts in carbon nanotubes into thermally stable single Ni atoms with a possible NiN3 moiety is reported, surrounded with a porous N-doped carbon sheath through a one-step nanoconfined pyrolysis strategy. These structural changes are confirmed by X-ray absorption fine structure analysis and density functional theory (DFT) calculations. The dispersed Ni single atoms facilitate highly efficient electrocatalytic CO2 reduction at low overpotentials to yield CO, providing a CO faradaic efficiency exceeding 90%, turnover frequency approaching 12 000 h(-1), and metal mass activity reaching about 10 600 mA mg(-1), outperforming current state-of-the-art single atom catalysts for CO2 reduction to CO. DFT calculations suggest that the Ni@N-3 (pyrrolic) site favors *COOH formation with lower free energy than Ni@N-4, in addition to exothermic CO desorption, hence enhancing electrocatalytic CO2 conversion. This finding provides a simple, scalable, and promising route for the preparation of low-cost, abundant, and highly active single atom catalysts, benefiting future practical CO2 electrolysis. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Activation of Ni Particles into Single Ni-N Atoms for Efficient Electrochemical Reduction of CO2 | - |
dc.type | Article | - |
dc.identifier.wosid | 000500592000001 | - |
dc.identifier.scopusid | 2-s2.0-85076117039 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 5 | - |
dc.citation.publicationname | ADVANCED ENERGY MATERIALS | - |
dc.identifier.doi | 10.1002/aenm.201903068 | - |
dc.contributor.localauthor | Jung, Yousung | - |
dc.contributor.nonIdAuthor | Fan, Qun | - |
dc.contributor.nonIdAuthor | Hou, Pengfei | - |
dc.contributor.nonIdAuthor | Wu, Tai-Sing | - |
dc.contributor.nonIdAuthor | Hong, Song | - |
dc.contributor.nonIdAuthor | Li, Fang | - |
dc.contributor.nonIdAuthor | Soo, Yun-Liang | - |
dc.contributor.nonIdAuthor | Kang, Peng | - |
dc.contributor.nonIdAuthor | Sun, Zhenyu | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | CO2 reduction | - |
dc.subject.keywordAuthor | density functional theory calculations | - |
dc.subject.keywordAuthor | electrocatalysis | - |
dc.subject.keywordAuthor | Ni | - |
dc.subject.keywordAuthor | single atom | - |
dc.subject.keywordPlus | ELECTROCATALYTIC REDUCTION | - |
dc.subject.keywordPlus | METAL | - |
dc.subject.keywordPlus | ELECTROREDUCTION | - |
dc.subject.keywordPlus | CATALYSTS | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.