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Investigation of a non-noble composite catalyst for hydrogen release control of ammonia-borane

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Ammonia-borane (NH3BH3) has been investigated as hydrogen storage material for fuel-cell application because of its good gravimetric (19.6 wt%) and volumetric hydrogen density. Non-noble metals such as cobalt, nickel and copper were employed as catalyst and their combination was also tried as catalysts. For the effective scanning method for a number of compositions, a high throughput screening (HTS) test was used. Among the catalysts investigated, the ternary composite Ni60Co20Cu20/ACF (active carbon fiber) showed excellent performance in releasing the hydrogen from NH3BH3 solution, which can be recommended as a viable/suitable catalyst for fuel-cell system application, with some necessary basic improvements.

Affiliations: 1: Department of Chemical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-Gu, Seoul 120-749, South Korea; 2: Nano Surface Technology, Korea Institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-Gu, Incheon, South Korea


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