中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Thermal decomposition kinetics of light-weight composite NaNH2-NaBH4 hydrogen storage materials for fuel cells
作者: Bai, Ying1;  Wu, Chuan1;  Wu, Feng1;  Yang, Jian-hu1;  Zhao, Lu-lu1;  Long, Fei1;  Yi, Bao-lian2
关键词: Fuel cells ;  Hydrogen storage material ;  Kinetics ;  NaNH2-NaBH4 ;  Catalysis ;  Co-B
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2012-09-01
DOI: 10.1016/j.ijhydene.2012.05.069
卷: 37, 期:17, 页:12973-12979
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: Pristine and Co-B doped NaNH2-NaBH4 (2/1 molar rate) hydrogen storage materials were synthesized via a ball milling method. The kinetic parameters, especially the activation energies were calculated by the Achar differential and the Coats-Redfern integral methods, based on the thermogravimetry curves of the decomposition processes of the hydrogen storage materials. The as-obtained activation energy for the pristine NaNH2-NaBH4 (2/1) is 159.6 kJ/mol, while that for the Co-B doped NaNH2-NaBH4 (211) is 70 kJ/mol, only 43.9% of the former, which indicates the Co-B catalyst can dramatically promote the hydrogen generation reaction. The structural evolution and the hydrogen releasing performance of the Co-B doped NaNH2-NaBH4 (211) were investigated by X-ray diffraction (XRD), thermogravimetry (TG) and differential thermal analysis (DTA). Then, the catalytic mechanism of NaNH2-NaBH4 (2/1) decomposition promoted by Co-B was discussed and illustrated. It implies that the existence of Co-B catalyst can promote the loss of electron from H-, thus improve the kinetics and accelerate the formation of H-2 upon heating. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: COMPLEX HYDRIDES ;  NABH4 SOLUTION ;  SYSTEMS ;  CATALYSTS ;  BOROHYDRIDE ;  GENERATION ;  LIBH4
语种: 英语
WOS记录号: WOS:000309024700108
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143113
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China

Recommended Citation:
Bai, Ying,Wu, Chuan,Wu, Feng,et al. Thermal decomposition kinetics of light-weight composite NaNH2-NaBH4 hydrogen storage materials for fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(17):12973-12979.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Bai, Ying]'s Articles
 [Wu, Chuan]'s Articles
 [Wu, Feng]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Bai, Ying]‘s Articles
 [Wu, Chuan]‘s Articles
 [Wu, Feng]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace