Facile one-step synthesis of Ru doped NiCoP nanoparticles as highly efficient electrocatalysts for oxygen evolution reaction
- Authors
- Kim, Jun; Min, Byeong Jo; Kwon, Taehyun; Kim, Taekyung; Song, Ho Chang; Ham, Hyung Chul; Baik, Hionsuck; Lee, Kwangyeol; Kim, Jin Young
- Issue Date
- 15-11월-2021
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Ru doping; cation vacancy; oxygen evolution reaction; phosphide; pre-catalyst
- Citation
- CHEMISTRY-AN ASIAN JOURNAL, v.16, no.22, pp.3630 - 3635
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMISTRY-AN ASIAN JOURNAL
- Volume
- 16
- Number
- 22
- Start Page
- 3630
- End Page
- 3635
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135732
- DOI
- 10.1002/asia.202100810
- ISSN
- 1861-4728
- Abstract
- Transition metal phosphides (TMPs) as ever-evolving electrocatalytic materials have attracted increasing attention in water splitting reactions owing to their cost-effective, highly active and stable catalytic properties. This work presents a facile synthetic route to NiCoP nanoparticles with Ru dopants which function as highly efficient electrocatalysts for oxygen evolution reaction (OER) in alkaline media. The Ru dopants induced a high content of Ni and Co vacancies in NiCoP nanoparticles, and the more defective Ru doped NiCoP phase than undoped NiCoP ones led to a greater number of catalytically active sites and improved electrical conductivity after undergoing electrochemical activation. The Ru doped NiCoP catalyst exhibited high OER catalytic performance in alkaline media with a low overpotential of 281 mV at 10 mA cm(-2) and a Tafel slope of 42.7 mV dec(-1).
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