DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oh, Se-Kwon | ko |
dc.contributor.author | Kim, Hyo Won | ko |
dc.contributor.author | Kwon, Yong Kuen | ko |
dc.contributor.author | Kim, MinJoong | ko |
dc.contributor.author | Cho, Eun Ae | ko |
dc.contributor.author | Kwon, Hyuk-Sang | ko |
dc.date.accessioned | 2017-01-12T06:29:41Z | - |
dc.date.available | 2017-01-12T06:29:41Z | - |
dc.date.created | 2016-12-26 | - |
dc.date.created | 2016-12-26 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v.4, no.47, pp.18272 - 18277 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | http://hdl.handle.net/10203/218235 | - |
dc.description.abstract | A high-performance bifunctional Co-P foam catalyst was successfully synthesized by facile one-step electrodeposition at a high cathodic current density. The synthetic approach includes fast generation of hydrogen bubbles as well as fast deposition of Co-P, which played a key role in forming a porous Co-P foam structure. The Co-P foam exhibits remarkable electrocatalytic activity and stability in both acidic and alkaline solution. Its HER activity was recorded with an over potential of 50 mV in 0.5 M H2SO4 and 131 mV in 1 M KOH at 10 mA cm(-2), which is comparable to that of commercial Pt/C (eta@10 mA cm(0.5 M H2SO4)(-2): 33 mV, (eta 10) (mA), (1M) (KOH): 80 mV). The Co-P foam (eta@10 mA cm(-2): 300 mV) exhibits better OER activities than Ir/C (n@10 mA cm(-2): 345 mV) and RuO2 (eta@10 mA cm(-2): 359 mV) in 1 M KOH solution. The excellent performance of the Co-P foam as an HER and OER catalyst can be attributed to the charge separation between Co and P in Co-P foam as well as the porous foam structure providing a large electrochemically active surface area (ECSA). The ECSA of the Co-P foam was calculated to be 118 cm(2), which was 2.4 times higher than that of a Co-P film (49 cm(2)). | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HIGH-PERFORMANCE | - |
dc.subject | ACTIVE ELECTROCATALYST | - |
dc.subject | PHOSPHIDE NANORODS | - |
dc.subject | CATALYTIC-ACTIVITY | - |
dc.subject | CARBON NANOTUBES | - |
dc.subject | NANOWIRE ARRAYS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | MOLYBDENUM | - |
dc.subject | WATER | - |
dc.subject | GENERATION | - |
dc.title | Porous Co-P foam as an efficient bifunctional electrocatalyst for hydrogen and oxygen evolution reactions | - |
dc.type | Article | - |
dc.identifier.wosid | 000390083200008 | - |
dc.identifier.scopusid | 2-s2.0-84999089956 | - |
dc.type.rims | ART | - |
dc.citation.volume | 4 | - |
dc.citation.issue | 47 | - |
dc.citation.beginningpage | 18272 | - |
dc.citation.endingpage | 18277 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.identifier.doi | 10.1039/C6TA06761A | - |
dc.contributor.localauthor | Cho, Eun Ae | - |
dc.contributor.localauthor | Kwon, Hyuk-Sang | - |
dc.contributor.nonIdAuthor | Kwon, Yong Kuen | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | ACTIVE ELECTROCATALYST | - |
dc.subject.keywordPlus | PHOSPHIDE NANORODS | - |
dc.subject.keywordPlus | CATALYTIC-ACTIVITY | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | NANOWIRE ARRAYS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | MOLYBDENUM | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | GENERATION | - |
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