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Metal-ion bridged high conductive RGO-M-MoS2 (M = Fe3+, Co2+, Ni2+, Cu2+ and Zn2+) composite electrocatalysts for photo-assisted hydrogen evolution

Journal Article


Abstract


  • Efficient photo-electrocatalysts for hydrogen evolution reaction (HER) are synthesized using a facile one-step hydrothermal method. With metal-ion bridges, highly dispersed molybdenum disulfide (MoS2) nanolayers are vertically grown on the reduced graphene oxide (RGO) to form RGO-M-MoS2 photocatalysts for HER, where M = Fe3+, Co2+, Ni2+, Cu2+ and Zn2+. The results show that the cross-bridging ions can modulate the MoS2 growth priority and act as efficient charge transfer channels between RGO and MoS2, and combine the advantages of the high conductivity of graphene with the photo-electrochemical activity of MoS2. The metal-ion bridged MoS2-M-RGO heterostructures demonstrate superior catalytic activity toward hydrogen evolution reaction in acid medium, evidenced by the remarkable higher catalytic current density at low overpotential compared with that of MoS2-RGO without metal-ion bridge. This study provides a novel and facile route for establishing efficient composite photo-electrocatalysts for water splitting to generate hydrogen.

UOW Authors


  •   Ge, Riyue (external author)
  •   Li, Wenxian (external author)
  •   Huo, Juanjuan (external author)
  •   Liao, Ting (external author)
  •   Cheng, Ningyan (external author)
  •   Du, Yi
  •   Zhu, M (external author)
  •   Li, Ying (external author)
  •   Zhang, Jiujun (external author)

Publication Date


  • 2019

Citation


  • Ge, R., Li, W., Huo, J., Liao, T., Cheng, N., Du, Y., Zhu, M., Li, Y. & Zhang, J. (2019). Metal-ion bridged high conductive RGO-M-MoS2 (M = Fe3+, Co2+, Ni2+, Cu2+ and Zn2+) composite electrocatalysts for photo-assisted hydrogen evolution. Applied Catalysis B: Environmental, 246 129-139.

Scopus Eid


  • 2-s2.0-85060331320

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3414

Number Of Pages


  • 10

Start Page


  • 129

End Page


  • 139

Volume


  • 246

Place Of Publication


  • Netherlands

Abstract


  • Efficient photo-electrocatalysts for hydrogen evolution reaction (HER) are synthesized using a facile one-step hydrothermal method. With metal-ion bridges, highly dispersed molybdenum disulfide (MoS2) nanolayers are vertically grown on the reduced graphene oxide (RGO) to form RGO-M-MoS2 photocatalysts for HER, where M = Fe3+, Co2+, Ni2+, Cu2+ and Zn2+. The results show that the cross-bridging ions can modulate the MoS2 growth priority and act as efficient charge transfer channels between RGO and MoS2, and combine the advantages of the high conductivity of graphene with the photo-electrochemical activity of MoS2. The metal-ion bridged MoS2-M-RGO heterostructures demonstrate superior catalytic activity toward hydrogen evolution reaction in acid medium, evidenced by the remarkable higher catalytic current density at low overpotential compared with that of MoS2-RGO without metal-ion bridge. This study provides a novel and facile route for establishing efficient composite photo-electrocatalysts for water splitting to generate hydrogen.

UOW Authors


  •   Ge, Riyue (external author)
  •   Li, Wenxian (external author)
  •   Huo, Juanjuan (external author)
  •   Liao, Ting (external author)
  •   Cheng, Ningyan (external author)
  •   Du, Yi
  •   Zhu, M (external author)
  •   Li, Ying (external author)
  •   Zhang, Jiujun (external author)

Publication Date


  • 2019

Citation


  • Ge, R., Li, W., Huo, J., Liao, T., Cheng, N., Du, Y., Zhu, M., Li, Y. & Zhang, J. (2019). Metal-ion bridged high conductive RGO-M-MoS2 (M = Fe3+, Co2+, Ni2+, Cu2+ and Zn2+) composite electrocatalysts for photo-assisted hydrogen evolution. Applied Catalysis B: Environmental, 246 129-139.

Scopus Eid


  • 2-s2.0-85060331320

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3414

Number Of Pages


  • 10

Start Page


  • 129

End Page


  • 139

Volume


  • 246

Place Of Publication


  • Netherlands