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Effects of Mo co-doping into Fe doped β-Ni(OH)2 microcrystals for oxygen evolution reactions

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2024, 34(1), pp.30-35
  • DOI : 10.6111/JKCGCT.2024.34.1.030
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : January 30, 2024
  • Accepted : February 13, 2024
  • Published : February 29, 2024

Je Hong Park 1 Si beom Yu 1 Tae Kwang An 1 Byeong Jun Kim 1 Jeong-ho Ryu 1

1한국교통대학교

Accredited

ABSTRACT

In order to improve the efficiency of the water splitting system for hydrogen production, the high overvoltage in the electrochemical reaction caused by the catalyst in the hydrogen evolution reaction (HER) and oxygen evolution reaction(OER) must be reduced. Among them, transition metal-based compounds are attracting attention as catalyst materials that can replace precious metals such as platinum that are currently used. In this study, nickel foam, an inexpensive metal porous material, was used as a support, and Fe-doped β-Ni(OH)2 microcrystals were synthesized through a hydrothermalsynthesis process. In addition, in order to improve OER properties, changes in the shape, crystal structure, and water splitting characteristics of Fe-Mo co-doped β-Ni(OH)2 microcrystals synthesized by co-doping with Mo were observed. The changes in the shape, crystal structure, and applicability as a catalyst for water splitting were examined.

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