Kinetics of sodium borohydride hydrolysis catalyzed via carbon nanosheets supported Zr/Co
文献类型：期刊论文
| 作者 | Zhang, Xuan1; Wei, Zhenhua2; Guo, Qingjie1; Tian, Hongjing1 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 231页码:190-196 |
| 关键词 | Hydrogen Sodium borohydride Carbon-supported zirconium/cobalt Kinetics |
| ISSN号 | 0378-7753 |
| 通讯作者 | Guo, QJ |
| 中文摘要 | Porous sheet-like activated carbon was prepared in a fluidized bed using peanut shell as carbon precursor. Cobalt and zirconium were impregnated onto the carbon by impregnation-chemical reduction method to obtain carbon nanosheets supported Co and Zr/Co catalysts. The samples were characterized using field emission scanning electron microscopy, X-ray diffraction, H-2-temperature-programmed reduction, and nitrogen adsorption measurements. It was found that the introduction of zirconium to the carbon-supported cobalt led to an intensified interaction between cobalt and the support. With the activation energy of 34.84 kJ mol(-1) and maximum hydrogen generation rate of 1708 mL min(-1) g(-1), this novel carbon-supported Zr/Co catalyst exhibited superior catalytic activity for the hydrolysis of NaBH4 in alkaline medium. Furthermore, the effects of temperature, catalyst amount, and concentration of NaOH and NaBH4 on the hydrolysis process were systematically studied, and an overall kinetic rate equation was described as r = Ae(-34840/(RT))[catalyst](1.53)[NaOH](-0.54)[NaBH4](0.43). (C) 2013 Elsevier B.V. All rights reserved. |
| 英文摘要 | Porous sheet-like activated carbon was prepared in a fluidized bed using peanut shell as carbon precursor. Cobalt and zirconium were impregnated onto the carbon by impregnation-chemical reduction method to obtain carbon nanosheets supported Co and Zr/Co catalysts. The samples were characterized using field emission scanning electron microscopy, X-ray diffraction, H-2-temperature-programmed reduction, and nitrogen adsorption measurements. It was found that the introduction of zirconium to the carbon-supported cobalt led to an intensified interaction between cobalt and the support. With the activation energy of 34.84 kJ mol(-1) and maximum hydrogen generation rate of 1708 mL min(-1) g(-1), this novel carbon-supported Zr/Co catalyst exhibited superior catalytic activity for the hydrolysis of NaBH4 in alkaline medium. Furthermore, the effects of temperature, catalyst amount, and concentration of NaOH and NaBH4 on the hydrolysis process were systematically studied, and an overall kinetic rate equation was described as r = Ae(-34840/(RT))[catalyst](1.53)[NaOH](-0.54)[NaBH4](0.43). (C) 2013 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 学科主题 | Electrochemistry ; Energy & Fuels |
| 类目[WOS] | Electrochemistry ; Energy & Fuels |
| 研究领域[WOS] | Electrochemistry ; Energy & Fuels |
| 关键词[WOS] | ALKALINE NABH4 SOLUTION ; FUEL-CELL APPLICATIONS ; IMPROVED HYDROGEN GENERATION ; COBALT(0) NANOCLUSTERS ; ROOM-TEMPERATURE ; AMMONIA-BORANE ; CO-B ; STORAGE ; DECOMPOSITION ; EFFICIENT |
| 收录类别 | SCI |
| 原文出处 | 10.1016/j.jpowsour.2013.01.008 |
| 语种 | 英语 |
| WOS记录号 | WOS:000316036700024 |
| 公开日期 | 2014-07-17 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/16479]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xuan,Wei, Zhenhua,Guo, Qingjie,et al. Kinetics of sodium borohydride hydrolysis catalyzed via carbon nanosheets supported Zr/Co[J]. JOURNAL OF POWER SOURCES,2013,231:190-196. |
| APA | Zhang, Xuan,Wei, Zhenhua,Guo, Qingjie,&Tian, Hongjing.(2013).Kinetics of sodium borohydride hydrolysis catalyzed via carbon nanosheets supported Zr/Co.JOURNAL OF POWER SOURCES,231,190-196. |
| MLA | Zhang, Xuan,et al."Kinetics of sodium borohydride hydrolysis catalyzed via carbon nanosheets supported Zr/Co".JOURNAL OF POWER SOURCES 231(2013):190-196. |
入库方式： OAI收割
来源：海洋研究所
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