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In situ coating amorphous boride on ternary pyrite-type boron sulfide for highly efficient oxygen evolution

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F21%3A73610290" target="_blank" >RIV/61989592:15640/21:73610290 - isvavai.cz</a>

  • Result on the web

    <a href="https://pubs.rsc.org/en/content/articlelanding/2021/TA/D0TA10633J" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2021/TA/D0TA10633J</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1039/d0ta10633j" target="_blank" >10.1039/d0ta10633j</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    In situ coating amorphous boride on ternary pyrite-type boron sulfide for highly efficient oxygen evolution

  • Original language description

    Multimetallic pyrite-type sulfides have been promising electrocatalytic materials for the electrochemical oxygen evolution reaction (OER), but sulfides still require further improvement due to the easy oxidization of surface atoms and the intrinsically low activity. Herein, we synthesized the ternary pyrite-type boron sulfide in situ coated by amorphous FeCoNiBx as an efficient and durable heterogeneous catalyst for OER. The spherical aberration-corrected transmission electron microscopy clearly shows that the adjacent crystals exhibit different phases with an approximately 2 nm amorphous layer on the external surface of the catalysts. This hybrid catalyst exhibits the superior OER activity with an attractive overpotential of 419.4 mV vs. RHE at 100 mA cm(-2) in 1 M KOH solution and excellent stability over 10 h. Density functional theory calculations reveal that the B atoms can attract the electrons from metals, resulting in the expansion of the unoccupied d orbitals of metals, which is beneficial to attract the electrons from OH- groups, thus improving the OER performance of the catalyst combined with its special heterostructure. This study provides an advantageous method for engineering the electrical structure of pyrite-type sulfides for high OER activity and long durability.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    21001 - Nano-materials (production and properties)

Result continuities

  • Project

    <a href="/en/project/EF15_003%2F0000416" target="_blank" >EF15_003/0000416: Advanced Hybrid Nanostructures for Renewable Energy Applications</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Materials Chemistry A

  • ISSN

    2050-7488

  • e-ISSN

  • Volume of the periodical

    9

  • Issue of the periodical within the volume

    20

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    8

  • Pages from-to

    12283-12290

  • UT code for WoS article

    000651135600001

  • EID of the result in the Scopus database

    2-s2.0-85106614126