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学科主题: 物理化学
题名: Improved hydrogen desorption properties of ammonia borane by Ni-modified metal-organic frameworks
作者: Si, Xiao-liang1, 2;  Sun, Li-xian1;  Xu, Fen3;  Jiao, Cheng-li1;  Li, Fen1;  Liu, Shu-sheng1;  Zhang, Jian1;  Song, Li-fang1;  Jiang, Chun-hong1;  Wang, Shuang1;  Liu, Ying-Liang4;  Sawada, Yutaka5
通讯作者: 孙立贤 ;  XuFen
关键词: Ammonia borane ;  MOFs ;  Confinement ;  Hydrogen storage
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011-06-01
DOI: 10.1016/j.ijhydene.2011.02.102
卷: 36, 期:11, 页:6698-6704
收录类别: SCI
文章类型: Article
部门归属: DNL19
项目归属: 1903
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
摘要: Improved hydrogen desorption properties of ammonia borane by Ni-modified metal-organic frameworks
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: Ammonia borane (AB) has attracted intensive study because of its low molecular weight and abnormally high gravimetric hydrogen capacity. However, the slow kinetics, irreversibility, and formation of volatile materials (borazine and ammonia) of AS limit its practical application. In this paper, new strategies by doping AB in metal-organic framework MIL-101 (denoted as AB/MIL-101) or in Ni modified MIL-101 (denoted as AB/Ni@MIL-101) are developed for hydrogen storage. In AB/MIL-101 samples, dehydrogenation did not present any induction period and undesirable by-product borazine, and decomposition thermodynamics and kinetics are improved. For AB/Ni@MIL-101, the peak temperature of AB dehydrogenation was shifted to 75 degrees C, which is the first report of such a big decrease (40 degrees C) in the decomposition temperature of AB. Furthermore, borazine and ammonia emissions that are harmful for proton exchange membrane fuel cells, were not detected. The interaction between AB and MIL-101 is discussed based on both theoretical calculations and experiments. Results show that Cr-N and B-O bonds have generated in AB/MIL-101 nanocomposites, and the decomposition mechanism of AB has changed. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: STORAGE ;  DEHYDROGENATION ;  HYDROLYSIS ;  KINETICS ;  COLLOIDS ;  HYDRIDE ;  RELEASE ;  SYSTEM
语种: 英语
WOS记录号: WOS:000291138200035
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115772
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Liaoning Normal Univ, Fac Chem & Chem Engn, Dalian 116029, Peoples R China
4.Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China
5.Tokyo Polytech Univ, Fac Engn, Dept Nanochem, Kanagawa 2430297, Japan

Recommended Citation:
Si, Xiao-liang,Sun, Li-xian,Xu, Fen,et al. Improved hydrogen desorption properties of ammonia borane by Ni-modified metal-organic frameworks[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(11):6698-6704.
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