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| 硼的添加对Ti0.26Zr0.07V0.24Mn0.1Ni0.33贮氢合金结构和电化学性能的影响 | |
| 引用本文： | 李书存,赵敏寿,焦体峰.硼的添加对Ti0.26Zr0.07V0.24Mn0.1Ni0.33贮氢合金结构和电化学性能的影响[J].无机化学学报,2013,29(10):2119-2125. |
| 作者姓名： | 李书存 赵敏寿 焦体峰 |
| 作者单位： | 1. 秦皇岛燕山大学环境与化学工程学院,秦皇岛066004;秦皇岛燕山大学亚稳材料制备技术与科学实验室,秦皇岛066004 2. 秦皇岛燕山大学环境与化学工程学院,秦皇岛066004;中国科学院长春应用化学研究所稀土化学与物理重点实验室,长春130022 3. 秦皇岛燕山大学环境与化学工程学院,秦皇岛,066004 |
| 基金项目： | 河北省自然科学基金(No.B2010001132)资助项目 |
| 摘 要： | Ti0.26Zr0.07V0.24Mn0.1Ni0.33Bx(x=0~0.10)系列合金均有V基固溶体相和C14型Laves相两相组成。添加B可提高Ti0.26Zr0.07V0.24Mn0.1Ni0.33合金的放电容量,Ti0.26Zr0.07V0.24Mn0.1Ni0.33B0.1合金电极在60 mA·g-1电流放电时的放电容量达到476.7 mAh·g-1。B的添加不同程度地降低了合金的高倍率放电性能,使合金电极表面上电化学反应的电荷转移电阻(R ct)显著增加,交换电流密度(I0)显著降低。添加B可显著改善Ti0.26Zr0.07V0.24Mn0.1Ni0.33合金电极的高温放电性能,Ti0.26Zr0.07V0.24Mn0.1Ni0.33B0.025合金电极在343 K高温下其放电容量达到525.6 mAh·g-1。 |
| 关 键 词： | 贮氢合金 电化学性能 硼 |
| 收稿时间： | 2013/1/19 0:00:00 |
| 修稿时间： | 5/3/2013 12:00:00 AM |
Effect of Addition of Boron on Structure and Electrochemical Characteristic of Ti0.26Zr0.07V0.24Mn0.1Ni0.33 Alloy |
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| LI Shu-Cun,ZHAO Min-Shou and JIAO Ti-Feng.Effect of Addition of Boron on Structure and Electrochemical Characteristic of Ti0.26Zr0.07V0.24Mn0.1Ni0.33 Alloy[J].Chinese Journal of Inorganic Chemistry,2013,29(10):2119-2125. | |
| Authors: | LI Shu-Cun ZHAO Min-Shou and JIAO Ti-Feng |
| Institution: | College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China;State Key Laboratory of Metastable Material Science and Technology, Yanshan University, Qinhuangdao, Hebei 066004, China;College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China;State Key Laboratory of Rare Earth on Advanced Materials and Valuable Utilization of Resources, Changchun Institute of Applied Chemistry, Chinese Academic of Science, Changchun 130022, China;College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China |
| Abstract: | The results show that all alloys are composed of V-based solid solution with body-centered-cube (BCC) structure and C14 Laves phase with hexagonal structure. The addition of Bincreases the discharge capacity of Ti0.26Zr0.07V0.24Mn0.1Ni0.33 alloy electrode and Ti0.26Zr0.07V0.24Mn0.1Ni0.33B0.1 alloy delivers the discharge capacity of 476.7 mAh·g-1at discharge current of 60 mA·g-1. The addition of Bdecreases the high-rate discharge ability of the alloy electrode in some extent. EISindicates that addition of Bdecreases the dynamic performance, which makes the charge transfer resistance (Rct) increases and the exchange current density (I0) decreases markedly. Considerable improvement in the high-temperature dischargeability is observed by addition of B, and the discharge capacity is up to 525.6 mAh·g-1 at 343 Kfor Ti0.26Zr0.07V0.24Mn0.1Ni0.33B0.025 alloy electrode. |
| Keywords: | hydrogen storage alloy electrochemical characteristics boron |
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