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Kim, Guntae
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Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, PEMFC, metal-air batteries, Metal-CO2 system, Catalyst for DRM

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A Composite Catalyst Based on Perovskites for Overall Water Splitting in Alkaline Conditions

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dc.contributor.author Bu, Yunfei ko
dc.contributor.author Kim, Seona ko
dc.contributor.author Kwon, Ohhun ko
dc.contributor.author Zhong, Qin ko
dc.contributor.author Kim, Guntae ko
dc.date.available 2019-12-20T00:31:46Z -
dc.date.created 2019-04-09 ko
dc.date.issued 2019-03 ko
dc.identifier.citation CHEMELECTROCHEM, v.6, no.5, pp.1520 - 1524 ko
dc.identifier.issn 2196-0216 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/30629 -
dc.description.abstract Electrochemical water splitting is considered a sustainable way to produce H 2 . However, it is still a challenge to develop efficient and stable electrocatalysts. Here, a bifunctional composite catalyst for the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) was constructed by using a facile in situ growth route, which combines the carbonization on exsolved alloy nanoparticles and sulfurization in one continues step. This composite catalyst contains Ruddlesden-Popper-type S-adsorbed (Nd 0.6 Sr 0.4 ) 3 ((Co,Fe) 0.85 Nb 0.15 ) 2 O 7 , metal sulfides, and hollow S-doped carbon fibers. Compared to the untreated catalyst, Nd 0.6 Sr 0.4 Co 0.6 Fe 0.3 Nb 0.1 O 3-δ , the composite catalyst leads to significantly enhanced OER and HER activities as well as excellent stability (more than 400 h without inactivation) during overall water splitting. Our research offers a new route to fabricate hetero-architecture materials with S-doped hollow carbon fibers on alloy nanoparticles of perovskite oxides. ko
dc.language 영어 ko
dc.publisher Wiley-VCH Verlag ko
dc.title A Composite Catalyst Based on Perovskites for Overall Water Splitting in Alkaline Conditions ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85062979962 ko
dc.identifier.wosid 000462598900033 ko
dc.type.rims ART ko
dc.identifier.doi 10.1002/celc.201801775 ko
dc.identifier.url https://onlinelibrary.wiley.com/doi/full/10.1002/celc.201801775 ko
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