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Applied surface science v.433, 2018년, pp.256 - 263   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Hierarchical honeycomb-like Co3O4 pores coating on CoMoO4 nanosheets as bifunctional efficient electrocatalysts for overall water splitting

Pei, Zhihao (School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China ) ; Xu, Li (School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China ) ; Xu, Wei (Tianjin Mainland Hydrogen Equipment Co., LTD., Tianjin 300072, PR China ) ;
  • 초록  

    Abstract Efficient electrocatalytic water splitting is one of the most effective ways to solve the global energy crisis. In this paper, we report on a novel self-assembled hierarchical structure of Co 3 O 4 /CoMoO 4 grown in situ on a bare nickel foam. The unique, three-dimensional honeycomb-like Co 3 O 4 pores were constructed from one-dimensional nanowires and coated on two-dimensional CoMoO 4 nanosheets structures grown on nickel foam. The synthesis involved a step-wise solvothermal method followed by an annealing treatment. Benefiting from the synergistic effect of the hierarchical nanostructures, the materials had more reaction active sites and a smaller electron transfer impedance, and they exhibited excellent electrocatalytic performances for the HER and OER of 143 and 244mV, respectively, at 10mAcm −2 in an alkaline solution. Furthermore, the materials remained stable during the long electrolysis period, over 10h, presenting promising application prospects in the field of electrocatalytic water splitting. Highlights Co 3 O 4 /CoMoO 4 are applied in the HER and overall water splitting for the first time. The unique structure of honeycomb-like pores constructed by nanowires coating on nanosheets is synthesized successfully. The novel hierarchical structure for the materials exhibited excellent performance for electrocatalytic water splitting. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Overall water splitting .   Electrocatalytic .   Hierarchical structure.  

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