| 直流电弧制备的Mg-TiO2复合材料的储氢性能 |
| |
| 引用本文： | 潘银成,;邹建新,;曾小勤,;丁文江. 直流电弧制备的Mg-TiO2复合材料的储氢性能[J]. 中国有色金属学会会刊, 2014, 24(12): 3834-3839. DOI: 10.1016/S1003-6326(14)63540-8 |
| |
| 作者姓名： | 潘银成, 邹建新, 曾小勤, 丁文江 |
| |
| 作者单位： | [1]上海交通大学上海市镁材料及应用工程中心,轻合金精密成型国家工程中心,上海200240; [2]上海交通大学材料科学与工程学院,金属基复合材料国家重点实验室,上海200240 |
| |
| 基金项目： | Project（11ZR1417600）supported by Shanghai Natural Science Foundation from Science and Technology Committee of Shanghai,China; Project（11PJ1406000）supported by‘Pujiang’Project from the Science and Technology Committee of Shanghai; Project（12ZZ017）supported by Shanghai Education Commission,China; Project（20100073120007）supported by China Education Commission |
| |
| 摘 要： | 采用直流电弧等离子体法蒸发Mg＋5%Ti O2的混合物并将其在空气中钝化,制备粉体Mg-Ti O2复合储氢材料。利用电感耦合等离子光谱发生仪（ICP）、X射线衍射仪（XRD）、扫描电子显微镜（SEM）表征粉体复合材料的成分、相组成及形貌。采用压力–成分–温度（PCT）和差示扫描量热仪（DSC）对Mg-Ti O2样品的吸放氢性能进行研究。由PCT测量结果可知,Mg-Ti O2复合粉体中镁的氢化焓和氢化熵分别为-71.5 kJ/mol和-130.1 J/（K·mol）,而粉体的氢化激活能为77.2 k J/mol。结果表明,采用电弧等离子体法在超细镁颗粒中加入Ti O2催化剂可显著增强镁的吸放氢动力学性能。
|
| 关 键 词： | 纳米复合材料 镁 二氧化钛 储氢 电弧等离子体技术 |
| 收稿时间： | 2013-10-17 |
Hydrogen storage properties of Mg-TiO2 composite powder prepared by arc plasma method |
| |
| Yin-cheng PAN,Jian-xin ZOU,Xiao-qin ZENG,Wen-jiang DING. Hydrogen storage properties of Mg-TiO2 composite powder prepared by arc plasma method[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(12): 3834-3839. DOI: 10.1016/S1003-6326(14)63540-8 |
| |
| Authors: | Yin-cheng PAN Jian-xin ZOU Xiao-qin ZENG Wen-jiang DING |
| |
| Affiliation: | Yin-cheng PAN, Jian-xin ZOU, Xiao-qin ZENG, Wen-jiang DING (1. Shanghai Engineering Research Center of Mg Materials and Applications, National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai 200240, China; 2. State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China) |
| |
| Abstract: | Mg-based Mg-TiO2 composite powder was prepared by arc plasma evaporation of the Mg＋5%TiO2 mixture followed by passivation in air. ICP, XRD and SEM techniques were used to characterize the composition, phase components and microstructure of the composite powder. The hydrogen sorption properties of the composite powder were investigated by DSC and PCT techniques. According to the data from PCT measurements, the hydrogenation enthalpy and entropy changes of the composite powder are calculated to be-71.5 kJ/mol and-130.1 J/（K·mol）, respectively. Besides, the hydrogenation activation energy is determined to be 77.2 kJ/ mol. The results indicate that TiO2 added into Mg by arc plasma method can act as a catalyst to improve the hydrogen sorption kinetic properties of Mg. |
| |
| Keywords: | nanostructured composite Mg TiO2 hydrogen storage arc plasma method |
| 本文献已被 维普 ScienceDirect 等数据库收录！ |
|
