Preparation of magnetic cobalt-based catalyst for hydrogen generation from alkaline NaBH4 solution | |
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學年 | 98 |
學期 | 1 |
出版(發表)日期 | 2009-09-01 |
作品名稱 | Preparation of magnetic cobalt-based catalyst for hydrogen generation from alkaline NaBH4 solution |
作品名稱(其他語言) | |
著者 | Liu, Cheng-Hong; Chen, Bing-Hung; Hsueh, Chan-Li; Ku, Jie-Ren; Tsau, Fanghei; Hwang, Kuo-Jen |
單位 | 淡江大學化學工程與材料工程學系 |
出版者 | Amsterdam: Elsevier BV |
著錄名稱、卷期、頁數 | Applied Catalysis B-Environmental 91(1-2), pp.368-379 |
摘要 | A fast and simple fabrication process, viz. a wet-chemical reduction process, was utilized for preparation of a cobalt-based catalyst to be used for hydrogen generation from alkaline NaBH4 solution. Characteristics of this cobalt-based catalyst were carried out by using various instruments, such as SEM/EDS, XPS, ICP, VSM, BET and TGA. The surface chemistry of the obtained catalyst is mainly cobalt oxides, not cobalt borides. Ferromagnetic property of the cobalt-based catalyst makes it convenient for being recycled from spent NaBH4 solution. The rate of hydrogen generation from catalyzed hydrolysis of alkaline NaBH4 solution was determined as a function of temperature, NaBH4 concentration, and NaOH concentration in the presence of prepared catalysts. In general, stable generation rate of highly pure hydrogen near 200 mL min−1 g−1 was achieved in 100 mL of 5 wt% NaBH4 solution containing 5 wt% NaOH solution and 200 mg of Co/IR-120 catalyst, in which no temperature runoff was observed during the course of hydrogen production. The activation energy of NaBH4 hydrolysis reaction was found at 66.67 kJ mol−1, which was comparable with others reported in the open literatures. |
關鍵字 | Hydrogen generation; Cobalt-based catalyst; Sodium borohydride; Wet-chemical reduction process; Fuel cell |
語言 | en |
ISSN | 0926-3373 |
期刊性質 | 國外 |
收錄於 | SCI EI |
產學合作 | |
通訊作者 | Chen, Bing-Hung |
審稿制度 | |
國別 | NLD |
公開徵稿 | |
出版型式 | 紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60398 ) |