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TiF_3对LiAlH_4放氢性能的影响
  • ISSN号：0251-0790
  • 期刊名称：《高等学校化学学报》
  • 时间：0
  • 分类：O642[理学—物理化学;理学—化学] O614[理学—无机化学;理学—化学]
  • 作者机构：[1]中国科学院大连化学物理研究所,大连116023, [2]中国科学院研究生院,北京100049, [3]辽宁师范大学化学化工学院,大连116029, [4]中国石油管道研究中心,廊坊065000
  • 相关基金：国家自然科学基金（批准号：20833009 20873148 50671098和U0734005）; 国家“八六三”计划项目（批准号：2007AA05Z115 2007AA05Z102）; 国家“九七三”计划项目（批准号：2010CB631303）; 国际纯粹与应用化学联合会项目（批准号：2008-006-3-100）资助
作者： 刘淑生[1,2], 孙立贤[1], 宋莉芳[1,2], 姜春红[1,2], 张箭[1], 张耀[1], 徐芬[3], 张志恒[4]
关键词： 三氟化钛, 氢化铝锂, 放氢, 催化, TiF_3, LiAlH_4, Dehydrogenation, Catalyze
中文摘要：

采用X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）和热重（TG）等测试方法,对掺杂TiF3前后和不同TiF3掺杂量LiAlH4的放氢性能进行了研究.结果发现,在TiF3存在下,LiAlH4在球磨过程中有少量分解.TiF3对LiAlH4放氢具有明显的催化作用.随着掺杂量的增加,LiAlH4的起始放氢温度降低,但放氢量会明显减少.掺杂2%（摩尔分数）TiF3的LiAlH4从80℃开始放氢,比未处理的LiAlH4的起始放氢温度降低了70℃,放氢量高达6.6%（质量分数）.

英文摘要：

The dehydrogenation performances of as-received,ball-milled and different amounts of TiF 3 doped LiAlH4 were investigated by X-ray diffraction（XRD） ,Fourier transformed infrared spectrometer（FTIR） and thermogravimetry（TG） measurements.It was found that LiAlH 4 decomposes a little during ball milling in the presence of TiF3.TiF3 has dramatically catalyzed the dehydrogenation of LiAlH4.With increasing amount of TiF3,the initial temperature of dehydrogenation decreases to some extent,but it sacrifices the dehydrogenation amount at great cost.2%（molar fraction） TiF 3-doped LiAlH4 begins to release H2 at 80℃,70℃lower than as-received LiAlH4,and can release as much as 6.6%（mass fraction） H 2 .

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期刊信息
  • 《高等学校化学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中华人民共和国教育部
  • 主办单位:吉林大学 南开大学
  • 主编：周其凤
  • 地址：吉林大学南胡校区
  • 邮编：130012
  • 邮箱：cjcu@jlu.edu.cn
  • 电话：0431-88499216
  • 国际标准刊号：ISSN：0251-0790
  • 国内统一刊号：ISSN：22-1131/O6
  • 邮发代号:12-40
  • 获奖情况:
  • 首届及第二届国家期刊奖,连续两届“百种中国杰出学术期刊”,中国期刊方阵“双高”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国科学引文索引（扩展库）,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘,中国北大核心期刊（2000版）
  • 被引量:50676