催化溢出用于储存的催化
1Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA. yang@umich.edu
Journal of the American Chemical Society
|March 3, 2009
概括
用TiCl(3) 或VCl(3) 合碳吸附剂显著提高储存率. 这一突破解决了发展用于运输燃料电池的经济的关键挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 储能 储能 储能 储能 储能 储能
背景情况:
- 储存气对于经济至关重要,特别是对于燃料电池汽车.
- 目前的储存方法面临着容量和充/放电率方面的挑战.
- 吸附剂材料中的气溢出显示出希望,但受到缓慢的速度的影响.
研究的目的:
- 研究改善吸附剂材料中溢出率的方法.
- 评估金属盐兴奋剂对吸附和脱吸动力学的影响.
- 分析兴奋剂对结能和异热性质的影响.
主要方法:
- 使用 (TiCl) 化物 (TiCl) 和 (VCl) 化物 (VCl) 合成化 Sorbent 材料.
- 使用体积学方法测量吸附率和脱吸率.
- 对异热体的分析,以确定歇斯底里和热力学参数.
- 为溢出过程计算吸附和激活能量的热量.
主要成果:
- 使用2重 % TiCl ((3) 或VCl ((3) 的兴奋剂显著增加了吸附和脱吸速率.
- 在同热体中,歇斯底里循环通过兴奋剂被消除.
- 在使用兴奋剂时,吸附热量和溢出激活能量被降低.
- 兴奋剂降低了溢出和碳表面点之间的结合能量.
结论:
- 金属盐兴奋剂是一种有效的策略,可以增强吸附剂材料中的溢出动力学.
- 降低的结合能促进更快的吸收和释放,这对于燃料电池应用至关重要.
- 这种方法为实现美国能源部在船上储存的目标提供了一条途径.
相关概念视频
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The hydrogenation process takes place on the surface of...
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