| 热处理对LaNi4.25Al0.75/SiO2复合材料储氢特性的影响 | |
| Alternative Title | Effect of Heat Treatment Temperature on Hydrogen Storage Properties of LaNi4.25Al0.75/SiO2 Composite |
| 韩兴博; 杨洪广; 陈伟; 陈德敏; 杨柯 | |
| 2013 | |
| Source Publication | 原子能科学技术
 |
| ISSN | 1000-6931 |
| Volume | 47.0Issue:004Pages:641-647 |
| Abstract | 采用气相二氧化硅法制备了LaNi4.25Al0.75/SiO2复合材料。研究了该复合材料经不同温度（473～1 073K）热处理后的相组成、形貌及吸放氢p-C-T曲线、吸氢动力学性能和吸放氢循环性能。结果表明,随着热处理温度的升高,LaNi4.25Al0.75/SiO2复合材料吸氢量减少,平台压升高,平台斜率略有增加,而动力学性能并无显著变化。经60次吸放氢循环后,经不同温度热处理后的样品均未出现粉化现象,且与未循环样品储氢性能基本保持一致。 |
| Other Abstract | LaNi4.25Al0.75/SiO2 composite was prepared by fumed silica method. The effect of heat treatment temperature （473-1 073 K） on phase composition, microstruc- ture, hydrogen absorption/desorption pressure-composition isotherms （p-C-T curves）, hydrogen absorption kinetics and absorption/desorption cycling properties of this composite was studied. The results indicate that with increasing the heat treatment temperature, hydrogen uptake capacity decreases, p-C-T plateau pressure and plateau slope increase slightly, while absorption kinetics almost keeps stable. After 60 cycles of hydrogen absorption/desorption the composite heat treated at all studied temperatures do not pulverize, and the hydrogen storage properties do not show significant difference from that of the as-prepared. |
| Keyword | 热处理 金属氢化物 LaNi4 25Al0 75 SiO2复合材料 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:4829291 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/156464 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 韩兴博,杨洪广,陈伟,等. 热处理对LaNi4.25Al0.75/SiO2复合材料储氢特性的影响[J]. 原子能科学技术,2013,47.0(004):641-647. |
| APA | 韩兴博,杨洪广,陈伟,陈德敏,&杨柯.(2013).热处理对LaNi4.25Al0.75/SiO2复合材料储氢特性的影响.原子能科学技术,47.0(004),641-647. |
| MLA | 韩兴博,et al."热处理对LaNi4.25Al0.75/SiO2复合材料储氢特性的影响".原子能科学技术 47.0.004(2013):641-647. |
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