Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
권호 표지

Development of Porous Co-P Catalyst for Hydrogen Generation by Hydrolysis of $NaBH_4$

Sodium Borohydride의 수소발생을 위한 다공성 Co-P 촉매 개발

  • Cho, Keun-Woo (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Engineering) ;
  • Eom, Kwang-Sub (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Engineering) ;
  • Kwon, Hyuk-Sang (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Engineering)
  • 조근우 (한국과학기술원 신소재공학과) ;
  • 엄광섭 (한국과학기술원 신소재공학과) ;
  • 권혁상 (한국과학기술원 신소재공학과)
  • Published : 2006.12.15
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Abstract

Porous Co-P catalysts electroplated on Cu in chloride based solution with an addition of $NaH_2PO_2$ and glycine were developed for hydrogen generation from alkaline $NaBH_4$ solution. The microstructures of the Co-P catalysts and their hydrogen generation properties were analyzed as a function of cathodic current density and plating time during the electrodeposition. Amorphous Co-P electrodeposits with porous structure was formed on Cu at cathodic current density of $0.05\;A/cm^2$, and showed very high hydrogen generation rate in alkaline $NaBH_4$ solution due to an increase in the surface area of the catalyst as well as the catalytic activity. The Co-P catalyst, which was obtained at cathodic current density of $0.05\;A/cm^2$ for 5 min, exhibited the best hydrogen generation rate of 2290 ml/min.g-catalyst in 1 wt. % NaOH+10 wt. % $NaBH_4$ solution at $30^{\circ}C$.

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