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Universal Platform for Robust Dual-Atom Doped 2D Catalysts with Superior Hydrogen Evolution in Wide pH Media

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Title
Universal Platform for Robust Dual-Atom Doped 2D Catalysts with Superior Hydrogen Evolution in Wide pH Media
Author(s)
Adofo, Laud Anim; Kim, Seon Je; Kim, Hyung-Jin; Soo Ho Choi; Lee, Su Jin; Won, Yo Seob; Balakrishan Kirubasankar; Kim, Jae Woo; Oh, Chang Seok; Ben-Smith, Andrew; Elorm, Anthonio Enoch; Jeong, Hu Young; Young Hee Lee; Young-Min Kim; Han, Young-Kyu; Kim, Soo Min; Ki Kang Kim
Publication Date
2024-05
Journal
Small, v.8, no.5
Publisher
Wiley - V C H Verlag GmbbH & Co.
Abstract
Layered 2D transition metal dichalcogenides (TMDs) have been suggested as efficient substitutes for Pt-group metal electrocatalysts in the hydrogen evolution reaction (HER). However, poor catalytic activities in neutral and alkaline electrolytes considerably hinder their practical applications. Furthermore, the weak adhesion between TMDs and electrodes often impedes long-term durability and thus requires a binder. Here, a universal platform is reported for robust dual-atom doped 2D electrocatalysts with superior HER performance over a wide pH range media. V:Co-ReS2 on a wafer scale is directly grown on oxidized Ti foil by a liquid-phase precursor-assisted approach and subsequently used as highly efficient electrocatalysts. The catalytic performance surpasses that of Pt group metals in a high current regime (≥ 100 mA cm−2) at pH ≥ 7, with a high durability of more than 70 h in all media at 200 mA cm−2. First-principles calculations reveal that V:Co dual doping in ReS2 significantly reduces the water dissociation barrier and simultaneously enables the material to achieve the thermoneutral Gibbs free energy for hydrogen adsorption. © 2023 Wiley-VCH GmbH.
URI
https://pr.ibs.re.kr/handle/8788114/15175
DOI
10.1002/smll.202308672
ISSN
1613-6810
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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