Highly Efficient Hydrogen Storage Capacity of 2.5 wt % Above 0.1 MPa Using Y and Cr Codoped V-Based Alloys

被引：24

作者：

Ding, Nan ^{[1
,2
]}

Li, Yichen ^{[1
,2
]}

Liang, Fei ^{[1
]}

Liu, Baozhong ^{[3
]}

Liu, Wanqiang ^{[2
]}

Wang, Qingshuang ^{[2
]}

Wang, Limin ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Rare Earth Resource Utilizat, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[2] Changchun Univ Sci & Technol, Sch Mat Sci & Engn, Changchun 130022, Peoples R China

[3] Henan Polytech Univ, Coll Chem & Chem Engn, Jiaozuo 454000, Henan, Peoples R China

来源：

ACS APPLIED ENERGY MATERIALS | 2022年 / 5卷 / 03期

关键词：

energy storage; hydrogen; vanadium-based alloy; effective capacity; thermodynamics; SUBSTITUTION; PERFORMANCE; IMPROVEMENT; ABSORPTION; SORPTION;

D O I：

10.1021/acsaem.1c03901

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Effective hydrogen storage capacity is a key factor for applications of solid-state hydrogen storage technology. In this work, V-based solid solution alloys were prepared and the effect of codoping Cr and the rare-earth Y element on the crystal microstructure and reversible hydrogen storage properties were investigated. The results revealed that the hydrogen absorption of Ti-V-Mn-Cr-Y alloys could exceed 90% of the maximum hydrogen capacity within 50 s at 6 MPa hydrogen pressure, and the alloy Ti0.9Y0.1V1.1Mn0.8Cr0.1 can absorb maximum 3.71 wt % hydrogen capacity, and the effective hydrogen capacity above 0.1 MPa can reach 2.53 wt % at 423 K. Furthermore, the dehydriding thermodynamic parameters revealed a significant tendency toward easier dehydrogenation with codoping of trans-metal and rare-earth metal elements.

引用

页码：3282 / 3289

页数：8

共 28 条

[1] Effects of Cu and Y substitution on hydrogen storage performance of TiFe0.86Mn0.1Y0.1-xCux [J].