Related Researcher

Author's Photo

Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .


Ru-incorporated oxygen-vacancy-enriched MoO2 electrocatalysts for hydrogen evolution reaction

DC Field Value Language Li, Chuang ko Jang, Haeseong ko Kim, Min Gyu ko Hou, Liqiang ko Liu, Xien ko Cho, Jaephil ko 2022-05-19T23:14:41Z - 2022-05-16 ko 2022-06 ko
dc.identifier.citation APPLIED CATALYSIS B-ENVIRONMENTAL, v.307, pp.121204 ko
dc.identifier.issn 0926-3373 ko
dc.identifier.uri -
dc.description.abstract Designing highly efficient Pt-free electrocatalysts with low overpotential for the alkaline hydrogen evolution reaction (HER) remains a significant challenge. In this paper, we successfully construct Ru-incorporated oxygen-vacancy-enriched MoO2 nanosheets (Ru/MoO2_x) for the HER through a "one stone two birds " strategy. This strategy can solve two urgent problems simultaneously, the intrinsic electrochemical activity of original MoO(2 )is far from satisfactory and the H2O adsorption/dissociation abilities of Ru are weak. Specifically, the oxygen-vacancy-enriched MoO3 serves as an excellent platform for anchoring and trapping Ru ions. In-depth analyses indicate that the incorporation of Ru nanoclusters induces transition from MoO3 to MoO2, generates oxygen vacancies, and creates Ru-O-Mo sites. The synergistic effect of Ru nanoclusters, Ru-O-Mo sites and oxygen-vacancy-enriched MoO2 will endow the obtained catalyst excellent electrocatalytic activity. In particular, the optimal Ru/MoO2_x electrocatalyst delivered a low overpotential of 29 mV at 10 mA cm(_2) in a basic electrolyte. ko
dc.language 영어 ko
dc.publisher ELSEVIER ko
dc.title Ru-incorporated oxygen-vacancy-enriched MoO2 electrocatalysts for hydrogen evolution reaction ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85124552239 ko
dc.identifier.wosid 000787898800002 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.apcatb.2022.121204 ko
dc.identifier.url ko
Appears in Collections:
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record


  • mendeley


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.