使用有机金属Ti碎片作为西格玛-H2结合点的H2储存材料 (22KJ/mol)
Ahmad Hamaed1, Michel Trudeau, David M Antonelli
1Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario N9B 3P4, Canada.
Journal of the American Chemical Society
|May 9, 2008
概括
新型低坐标 (III) 材料在半孔上接种,显示出显著的储能能力. 这些材料表现出强烈的西格玛-H2结合,可能增强汽车在环境温度下储存的.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 开发高效的存材料对于推进清洁能源技术至关重要.
- 现有的方法经常面临容量,稳定性或操作条件的挑战.
研究的目的:
- 在半孔上合成和表征低坐标 (III) 碎片,以增强存储.
- 根据前体类型和负载来研究储能和结合性质.
主要方法:
- 将三和四基 (III) 前体移植到半孔上.
- 在各种温度和压力下测试储能.
- 分析吸附异热量和结合热量.
主要成果:
- 对四基Ti前体的最佳负载在196°C和100 atm处产生了21.45%的储量.
- 实现了强大的sigma-H2结合,度高达22.15kJ/mol,适合室温性能.
- 在25°C时,每Ti中心有1.1H2的保留.
结论:
- 在半孔上低坐标的Ti (III) 碎片对高容量储存有希望.
- 库巴斯对H2的结合为环境温度储应用提供了可行的途径.
- 这种方法可以显著提高当前的高压储容量.
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