| Ti0.10Zr0.15V0.35Cr0.10Ni0.30+5wt% LaNi5复合储氢合金的电化学性能与协同效应 |
| |
| 引用本文： | 王艳芝,赵敏寿,翟 静,刘 潘,彭 锂,沈文卓,马维克.Ti0.10Zr0.15V0.35Cr0.10Ni0.30+5wt% LaNi5复合储氢合金的电化学性能与协同效应[J].无机化学学报,2011,27(11):2217-2224. |
| |
| 作者姓名： | 王艳芝 赵敏寿 翟 静 刘 潘 彭 锂 沈文卓 马维克 |
| |
| 作者单位： | 1. 燕山大学河北省应用化学重点实验室,秦皇岛066004;燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛 066004
2. 燕山大学河北省应用化学重点实验室,秦皇岛,066004 |
| |
| 摘 要： | 为了改善钛钒基固溶体合金的电化学性能,利用两步电弧熔炼法制备复合储氢合金Ti0.10Zr0.15V0.35Cr0.10Ni0.30+5wt%LaNi5,X-射线衍射(XRD)和场发射扫描电镜-能谱(FESEM-EDS)显示:复合储氢合金的主相是体心立方结构的钒基固溶体相和六方结构的C14 Laves相,复合过程中生成了第二相。电化学测试结果表明:复合合金电极的P-C-T特征、活化性能、最大放电容量、循环稳定性、低温放电性能和动力学特性均较母体合金有显著改善。复合合金电极的活化周期数为5,最大放电容量为353.9 mAh.g-1,233 K时低温放电能力为50.26%。该复合合金电极的最大储氢容量、平台压、电荷转移电阻和交换电流密度均存在协同效应;在任意循环、在高/低温下以及在高倍率放电过程中,该复合合金电极的放电容量均存在协同效应。
|
| 关 键 词： | 钛钒基固溶体 复合储氢合金 电化学性能 协同效应 |
Electrochemical Characteristics and Synergetic Effect of Ti0.10Zr0.15V0.35Cr0.10Ni0.30+5wt% LaNi5 Composite Hydrogen Storage Alloy |
| |
| WANG Yan-Zhi,ZHAO Min-Shou,ZHAI Jing,LIU Pan,PENG Li,SHEN Wen-Zhuo and MA Wei-Ke.Electrochemical Characteristics and Synergetic Effect of Ti0.10Zr0.15V0.35Cr0.10Ni0.30+5wt% LaNi5 Composite Hydrogen Storage Alloy[J].Chinese Journal of Inorganic Chemistry,2011,27(11):2217-2224. |
| |
| Authors: | WANG Yan-Zhi ZHAO Min-Shou ZHAI Jing LIU Pan PENG Li SHEN Wen-Zhuo and MA Wei-Ke |
| |
| Institution: | Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, Hebei 066004, China,Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, Hebei 066004, China,Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China,Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China,Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China,Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China and Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao, Hebei 066004, China |
| |
| Abstract: | Ti0.10Zr0.15V0.35Cr0.10Ni0.30+5wt% LaNi5 composite hydrogen storage alloy was prepared by two-step arc melting in order to improve performance of Ti-V-based solid solution alloy.X-ray diffractometry(XRD) and field emission scanning electron microscopy-energy dispersive spectroscopy(FESEM-EDS) show that the main phase of the composite alloy is composed of V-based solid solution phase with a BCC structure and C14 Laves phase with hexagonal structure,while secondary phase also exists in the composite alloy.Ele... |
| |
| Keywords: | Ti-V-based solid solution composite hydrogen storage alloy electrochemical characteristics synergetic effect |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
