Tailoring of Metal Boride Morphology via Anion for Efficient Water Oxidation

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  • Jean Marie Vianney Nsanzimana
    School of Chemical and Biomedical Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
  • Lanqian Gong
    Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 P. R. China
  • Raksha Dangol
    School of Material Science and Engineering Nanyang Technological University Singapore 639798 Singapore
  • Vikas Reddu
    School of Chemical and Biomedical Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
  • Vishal Jose
    School of Chemical and Biomedical Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
  • Bao Yu Xia
    Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology 1037 Luoyu Road Wuhan 430074 P. R. China
  • Qingyu Yan
    School of Material Science and Engineering Nanyang Technological University Singapore 639798 Singapore
  • Jong‐Min Lee
    School of Chemical and Biomedical Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
  • Xin Wang
    School of Chemical and Biomedical Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

書誌事項

公開日
2019-06-23
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/aenm.201901503
公開者
Wiley

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説明

<jats:title>Abstract</jats:title><jats:p>The metal‐metalloid materials have received a massive interest as oxygen‐evolving catalysts due to their ability for charge transfer between different elements and modified electronic structures lowering the kinetic energy barriers of the electrochemical processes. Herein, a facile and systematic preparation of metal borides by chemical reduction is reported, with morphologies ranging from nanoparticles to nanosheets which is driven by a careful selection of metal salts solution. The iron doping in cobalt boride nanosheets is found to be an effective approach to further tune the water oxidation activity. The as‐prepared catalyst exhibited superior oxygen evolution performance in 1.0 <jats:sc>m</jats:sc> KOH as the optimized ternary CoFe boride needs an overpotential of 265 mV to achieve a current density of 10 mA cm<jats:sup>−2</jats:sup> at a mass loading of 0.3 mg cm<jats:sup>−2</jats:sup>.</jats:p>

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