Facile one-step synthesis of Ru doped NiCoP nanoparticles as highly efficient electrocatalysts for oxygen evolution reaction

Jun Kim, Byeong Jo Min, Taehyun Kwon, Taekyung Kim, Ho Chang Song, Hyung Chul Ham, Hionsuck Baik, Kwangyeol Lee, Jin Young Kim

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)3630-3635
    Number of pages6
    JournalChemistry - An Asian Journal
    Volume16
    Issue number22
    DOIs
    Publication statusPublished - 2021 Nov 15

    Bibliographical note

    Funding Information:
    This work was supported by the Hydrogen Energy Innovation Technology Development Program of the National Research Foundation of Korea (NRF) funded by the Korean government (Ministry of Science and ICT (MSIT)) (No. 2019M3E6A1063674), the KIST institutional program (2E31002), the National Research Foundation of Korea (NRF‐2020R1A2B5B03002475, NRF‐2019R1A6A1A11044070, NRF‐2019M3E6A1064709), the program of Future Hydrogen Original Technology Development (NRF‐2021M3I3A1082879) through the National Research Foundation of Korea (NRF) funded by the Korean government (Ministry of Science and ICT (MSIT)), INHA UNIVERSITY Research Grant, and KBSI project C123000.

    Publisher Copyright:
    © 2021 Wiley-VCH GmbH

    Keywords

    • Ru doping
    • cation vacancy
    • oxygen evolution reaction
    • phosphide
    • pre-catalyst

    ASJC Scopus subject areas

    • General Chemistry
    • Biochemistry
    • Organic Chemistry

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