Open Access

ARTICLE

Study on Hydrogen Storage Properties, Anti-Oxide Ability and Rate Limiting Step of ZrCr-Based Alloy after Introducing Cobalt as Additive

by Dongfang Huang^1,4, Peng Lv^1,2,3,4,*, Changlin Zhong^1,2, Xingsheng Zhou^1,2, Zhichen Liu⁴

1 Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
2 Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang, 330013, China
3 Engineering Research Center of Nuclear Technology Application (East China University of Technology), Ministry of Education, Nanchang, 330013, China
4 School of Innovation and Entrepreneurship Education, East China University of Technology, Nanchang, 330013, China

* Corresponding Author: Peng Lv. Email:

(This article belongs to the Special Issue: Advanced Renewable Energy Storage Materials and Their Composite: Preparation, Characterization and Applications)

Journal of Renewable Materials 2023, 11(3), 1383-1400. https://doi.org/10.32604/jrm.2022.023261

Received 25 April 2022; Accepted 27 May 2022; Issue published 31 October 2022

Abstract

In this work, the microstructure, hydrogen storage properties, anti-oxide ability and rate limiting step of Zr(Cr_1−xCo_x)₂ (x = 0, 0.2, 0.4 and 0.6) alloys have been investigated. After studying the crystal structure, we found that all alloy samples could show C14-type phase but the alloy sample x = 0 could also show a small amount of Cr phase. Rietveld fitting showed that lattice parameter and unit cell volume of C14-type phase decreased with increasing x. After further research, it was clear that the first hydrogen absorption capacity decreased with increasing x. But introducing more Co content had a positive influence on the effective hydrogen storage capacity and cyclic hydrogen absorption and desorption properties of the alloy sample. We also found that adding Co to ZrCr₂ alloy could improve its anti-oxide ability. In addition to this, the rate limiting step model was also studied.

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Keywords

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