| Ti0.25V0.3Cr0.4Mn0.05-La0.67Mg0.33Ni3.0的复合贮氢材料制备及贮氢性能研究 |
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| 引用本文： | 王大辉,徐广胜,罗永春,康龙,闫汝煦.Ti0.25V0.3Cr0.4Mn0.05-La0.67Mg0.33Ni3.0的复合贮氢材料制备及贮氢性能研究[J].兰州理工大学学报,2006,32(6):20-23. |
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| 作者姓名： | 王大辉 徐广胜 罗永春 康龙 闫汝煦 |
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| 作者单位： | 兰州理工大学,材料科学与工程学院,甘肃,兰州,730050;兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050 |
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| 基金项目： | 甘肃省中青年科技研究基金 |
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| 摘 要： | 采用机械合金化制备了复合贮氢材料Ti0．25V0．3Cr0．4Mn0．05-La0．67Mg0．33Ni3．0．X-ray衍射表明：Ti0．25V0．3Cr0．4Mn0．05-La0．67Mg0．33Ni3．0复合材料为bcc结构，与Ti0．25V0．3Cr0．4Mn0．05合金衍射图谱相比，该复合材料衍射峰的衍射强度明显降低并宽化．吸放氧研究表明，Ti0．25V0．3Cr0．4Mn0．05-La0．67Mg0．33Ni3．0复合材料易于活化，在3．5MPa、室温下经过26h即可活化，但合金贮氢量没有明显改变．电化学性能研究表明：该复合材料具有很好的电化学循环稳定性能，300次循环容量仍保持在93％.
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| 关 键 词： | 机械合金化 复合贮氢材料 贮氢性能 |
| 文章编号： | 1673-5196(2006)06-0020-04 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2005年12月5日 |
Preparation of hydrogen storage composite Ti0.25V0.3Cr0.4Mn0.05-La0.67Mg0.33Ni3.0 and investigation of its hydrogen storage performance |
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| WANG Da-hui,XU Guang-sheng,LUO Yong-chun,KANG Long,YAN Ru-xun.Preparation of hydrogen storage composite Ti0.25V0.3Cr0.4Mn0.05-La0.67Mg0.33Ni3.0 and investigation of its hydrogen storage performance[J].Journal of Lanzhou University of Technology,2006,32(6):20-23. |
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| Authors: | WANG Da-hui XU Guang-sheng LUO Yong-chun KANG Long YAN Ru-xun |
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| Institution: | 1. College of Materials Science and Engineering, Lanzhou Univ. of Tech. , Lanzhou 730050, China; 2. State Key Lab. of Gansu Advanced Non-ferrous Metal Materials, Lanzhou Univ. of Tech., Lanzhou 730050, China |
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| Abstract: | Hydrogen storage composite Ti0.25V0.3Cr0.4Mn0.05-La0.67Mg0.33Ni3.0 was prepared by means of mechanical alloying. It was shown by its X-ray diffraction tha.t this composite had bee structure and, compared with the diffraction spectrum, the diffraction intensity of its diffraction peak was remarkably reduced and width-widened. It was also shown by the investigation of gaseous adsorption and release of hydrogen from this composite that this composite was easily to be activated, so that the necessary time for its activation was only 26 h under the condition of 3. 5 MPa and indoor temperature without evident variation of hydrogen storage amount with this composite. It was further shown by the investigation of electrochemical performance that this composite possessed fine stability of electrochemical cycling, so that its storage capacity remained 93% after 300 cycles. |
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| Keywords: | Ti0 25V0 3Cr0 4Mn0 05-La0 67Mg0 33Ni3 0 |
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