Thermally reduced rGO-wrapped CoP/Co2P hybrid microflower as an electrocatalyst for hydrogen evolution reaction
DC Field | Value | Language |
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dc.contributor.author | Kim, Taek-Seung | - |
dc.contributor.author | Song, Hee Jo | - |
dc.contributor.author | Dar, Mushtaq Ahmad | - |
dc.contributor.author | Shim, Hyun-Woo | - |
dc.contributor.author | Kim, Dong-Wan | - |
dc.date.accessioned | 2021-09-02T06:47:04Z | - |
dc.date.available | 2021-09-02T06:47:04Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-09 | - |
dc.identifier.issn | 0002-7820 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/73258 | - |
dc.description.abstract | Cobalt phosphides (CoPx) are potential candidates for use as high-efficiency hydrogen evolution reaction electrocatalysts that can replace noble metals, such as Pt. Typically, CoPx can be synthesized by phosphidation with Co-based precursors such as oxides or hydroxides. In this study, we propose a new strategy for synthesizing CoPx through the thermal reduction in cobalt phosphate (Co-3(PO4)(2)). A reduced graphene oxide-wrapped CoP/Co2P hybrid microflower was successfully synthesized by a facile coprecipitation method in a Co-3(PO4)(2) matrix, followed by a thermal reduction process. Co-3(PO4)(2) can be transformed to CoP/Co2P by treatment at 700 degrees C for 1hour, maintaining the original particle morphology with the assistance of reduced graphene oxide (rGO). In a 0.5mol/L H2SO4 solution, the rGO-CoP/Co2P microflower catalyzes the hydrogen evolution reaction with an overpotential of 156 mV at a current density of 10mA cm(-2), a Tafel slope of 53.8mV dec(-1), and good stability as observed through long-term CV and chronoamperometry tests. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.subject | MOLYBDENUM | - |
dc.subject | OXIDATION | - |
dc.subject | CATALYSTS | - |
dc.subject | PHOSPHIDE | - |
dc.subject | COAL | - |
dc.title | Thermally reduced rGO-wrapped CoP/Co2P hybrid microflower as an electrocatalyst for hydrogen evolution reaction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Dong-Wan | - |
dc.identifier.doi | 10.1111/jace.15581 | - |
dc.identifier.scopusid | 2-s2.0-85045770242 | - |
dc.identifier.wosid | 000436943300002 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.101, no.9, pp.3749 - 3754 | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | - |
dc.citation.title | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | - |
dc.citation.volume | 101 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 3749 | - |
dc.citation.endPage | 3754 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordPlus | MOLYBDENUM | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | PHOSPHIDE | - |
dc.subject.keywordPlus | COAL | - |
dc.subject.keywordAuthor | catalysts | - |
dc.subject.keywordAuthor | catalysis | - |
dc.subject.keywordAuthor | cobalt | - |
dc.subject.keywordAuthor | cobalt compounds | - |
dc.subject.keywordAuthor | graphene oxide | - |
dc.subject.keywordAuthor | hydrogen evolution reaction | - |
dc.subject.keywordAuthor | phosphates | - |
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