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


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

DC Field Value Language Bu, Yunfei ko Kim, Seona ko Kwon, Ohhun ko Zhong, Qin ko Kim, Guntae ko 2019-12-20T00:31:46Z - 2019-04-09 ko 2019-03 ko
dc.identifier.citation CHEMELECTROCHEM, v.6, no.5, pp.1520 - 1524 ko
dc.identifier.issn 2196-0216 ko
dc.identifier.uri -
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 ko
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