DataVXACS Applied Energy MaterialsPaper
journal article·2022-03-28

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

Nan Ding, Yichen Li, Fei Liang, Baozhong Liu, Wanqiang Liu, Qingshuang Wang, Limin Wang

ACS Applied Energy Materials· Volume 5· Issue 3
Publisher page
Source abstract

Abstract

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.
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Research context

Metals & alloys

OpenAlex topics: Hydrogen Storage and Materials · Hybrid Renewable Energy Systems · Electrocatalysts for Energy Conversion

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, CAS, Changchun 130022, China

School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China

College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, China

Funding

Youth Innovation Promotion Association of the Chinese Academy of Sciences · Department of Science and Technology of Jilin Province · State Key Laboratory of Rare Earth Resource Utilization · Scientific and Technological Key Development Program of Jiangxi Province · State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization

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