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Synthesis of Cobalt Phosphates and their Catalytic Properties of the Hydrogen Generation from the Hydrolysis of NaBH4

비결정질 코발트 인산염 합성 및 NaBH4 가수분해를 통한 수소발생 촉매 활성 연구

  • Kim, Youngyong (Department of Chemistry and RINS, Gyeongsang National University) ;
  • Park, Joon Bum (Department of Chemistry Education and Institute of Fusion Science, Chonbuk National University) ;
  • Kwon, Ki-Young (Department of Chemistry and RINS, Gyeongsang National University)
  • 김영용 (경상대학교 화학과, 경상대학교 기초과학연구소) ;
  • 박준범 (전북대학교 화학교육학부) ;
  • 권기영 (경상대학교 화학과, 경상대학교 기초과학연구소)
  • Received : 2015.10.01
  • Accepted : 2015.10.23
  • Published : 2015.12.10

Abstract

Amorphous cobalt phosphates were synthesized with their distinct morphology by controlling the amount of base in the synthetic condition. The crystallinity and morphology of cobalt phosphates were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The prepared cobalt phosphates were applied as a heterogeneous catalyst for generating hydrogen gas from the hydrolysis reaction of sodium borohydride. We found that the catalyst prepared using the least amount of base condition at room temperature showed a plate shape with less than 10 nm thickness, which resulted in the best catalytic activity among all catalysts due to the large surface area.

Keywords

cobalt phosphate;hydrogen generation;heterogeneous catalyst;sodium borohydride

Acknowledgement

Supported by : 한국연구재단

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