Structural properties of tungsten-doped cobalt molybdate and its application in electrochemical oxygen evolution reaction

  • Doldet Tantraviwat
  • Supanan Anuchai
  • Kontad Ounnunkad
  • Surin Saipanya
  • Noppadol Aroonyadet
  • Gobwute Rujijanagul
  • Burapat InceesungvornEmail author


New tungsten-doped CoMoO4 (W-CoMoO4) was successfully synthesized by a simple co-precipitation method and investigated for a possible application in oxygen evolution reaction (OER). The effect of W6+ doping on structure, morphology, and chemical compositions was investigated by X-ray diffraction spectroscopy, scanning electron microscopy, Fourier transform spectroscopy, Brunauer–Emmet–Teller surface area measurement, and X-ray photoelectron spectroscopy. Linear sweep voltammetry indicates that doping CoMoO4 with an optimum W6+ amount of 21 wt% provides higher current density at lower overpotential than other catalysts. Compared to undoped CoMoO4, the 21 wt% W-CoMoO4 also shows a remarkable activity and excellent long-term stability in alkaline media. This superior activity is ascribed to the synergistic effect of increased oxygen vacancy, enhanced surface area, and possibly improved electrical conductivity upon W6+ doping. The significances of this work are that the potential OER application of Co–W–Mo tertiary oxide, which has never been studied before, and the effect of non-3d high-valency metal (W) doping on OER activity enhancement are now being recognized.



This work was supported by Thailand Research Fund (TRF, Grant No. MRG6080098), the Center of Excellence in Materials Science and Technology, the Center for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of Education, and the Graduate School, Chiang Mai University. Additionally, B.I. would also like to thank Chiang Mai University through Young Researcher Scholarship for the financial support.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Electrical Engineering, Faculty of EngineeringChiang Mai UniversityChiang MaiThailand
  2. 2.Center of Excellence in Materials Science and Technology, Faculty of ScienceChiang Mai UniversityChiang MaiThailand
  3. 3.Department of Chemistry, Faculty of Science, and Center of Excellence for Innovation in Chemistry (PERCH-CIC)Chiang Mai UniversityChiang MaiThailand
  4. 4.National Nanotechnology CenterNational Science and Technology Development AgencyKhlong LuangThailand
  5. 5.Department of Physics and Materials Science, Faculty of ScienceChiang Mai UniversityChiang MaiThailand

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