Jeong, SU Kim, RK Cho, EA Kim, HJ Nam, SW Oh, IH Hong, SA Kim, SH 2024-01-21T04:43:15Z 2024-01-21T04:43:15Z 2021-09-03 2005-06-01 0378-7753 https://pubs.kist.re.kr/handle/201004/136374 For hydrogen generation from an aqueous alkaline NaBH4 solution, Co-B catalyst was prepared by the chemical reduction method using NaBH4 as a reduction chemical. To design a hydrogen generator, hydrogen generation rate was measured using the Co-13 catalyst as a function of solution temperature, amount of catalyst loading, NaBH4 concentration, and NaOH (a base-stabilizer) concentration. Activation energy for the hydrogen generation reaction was measured to be 64.87 kJ mol(-1). Compared to Ru catalysts previously used, the low-cost Co-13 catalyst exhibited comparable activity for the hydrogen generation reaction. Using the hydrogen generation system employing the Co-13 catalyst, a 2 W polymer electrolyte membrane fuel cell (PEMFC) stack was operated and successfully powered a cellular phone. (c) 2005 Elsevier B.V. All rights reserved. English ELSEVIER BOROHYDRIDE SOLUTION A study on hydrogen generation from NaBH4 solution using the high-performance Co-B catalyst Article 10.1016/j.jpowsour.2004.12.046 1 JOURNAL OF POWER SOURCES, v.144, no.1, pp.129 - 134 JOURNAL OF POWER SOURCES 144 1 129 134 scie scopus 000229705800015 2-s2.0-18844420284 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article BOROHYDRIDE SOLUTION hydrogen generation Co-B catalyst NaBH4 polymer electrolyte membrane fuel cell