Optimized hydrogen storage properties of Ti-Zr-Mn-VFe-based alloys by orthogonal experiment for upscaled production
By
Li, RF (Li, Runfeng) [1] ; Zhu, YY (Zhu, Yongyang) [2] ; Tang, RH (Tang, Renheng) [2] ; Wu, DF (Wu, Daifeng) [2] ; Zeng, LM (Zeng, Liming) [2] ; Zhou, Q (Zhou, Qing) [2] ; Liu, JW (Liu, Jiangwen) [1]
(provided by Clarivate)
Source
MATERIALS CHEMISTRY AND PHYSICS
Volume319
DOI10.1016/j.matchemphys.2024.129338
Article Number
129338
Published
JUN 1 2024
Early Access
APR 2024
Indexed
2024-09-10
Document Type
Article
Abstract
Ti-Mn-based hydrogen storage alloys have been widely developed for hydrogen compressors and storage because of their excellent hydrogen storage properties. However, there is still a need to develop a high-capacity hydrogen storage based on low-cost and large-scale preparation. Herein, cheap VFe80 intermetallic alloy is employed to replace the expensive V, and Ti-Zr-Mn-VFe-based alloys ((Ti1-yZry)1+xMn1.88-z(VFe)z, 1- y Zr y ) 1 + x Mn 1.88- z (VFe) z , x = 0, 0.05, 0.1, y = 0.05, 0.1, 0.15, z = 0.34, 0.44, 0.54) with mainly C14 Laves phase structure were designed and prepared to optimize the composition by an orthogonal experiment. According to the orthogonal analysis, it is found that the maximum hydrogen storage capacity and hysteresis factor mainly are controlled by the content of VFe80 in the Ti-Zr-Mn-VFe-based alloys. The over-stoichiometry of A-side governs the plateau slope, and the content of Zr decreases hydrogen plateau pressure. The optimal Ti 0.9 Zr 0.1 Mn 1.44 (VFe) 0.44 alloy achieves a revisable hydrogen storage capacity of 1.73 wt% with low plateau hysteresis factor (0.49) and plateau slope factor (0.73) at room temperature, the dehydrogenation enthalpy and entropy values respectively are 33.92 kJ/mol and 120.64 J/ (mol center dot K), which exhibits the best overall hydrogen storage properties. Furthermore, the optimal alloy was successfully produced on a large scale, which provides empirical value for upscaled production of AB2 2 Laves-phase hydrogen alloys.
Keywords
Author KeywordsHydrogen storageVFe80C14 laves phaseOrthogonal experimentLarge-scale production
Keywords PlusPRESSUREMICROSTRUCTUREPERFORMANCESTABILITY
Author Information
Corresponding Address
Liu, Jiangwen
(corresponding author)
South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
Affiliation
South China University of Technology
Corresponding Address
Zhu, Yongyang
(corresponding author)
Guangdong Acad Sci, Inst Resources Utilizat & Rare Earth Dev, State Key Lab Rare Met Separat & Comprehens Utiliz, Guangdong Prov Key Lab Rare Earth Dev & Applicat, Guangzhou 510650, Peoples R China
E-mail Addresses
yongyangzhu2016@163.com
Addresses
1 South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
2 Guangdong Acad Sci, Inst Resources Utilizat & Rare Earth Dev, State Key Lab Rare Met Separat & Comprehens Utiliz, Guangdong Prov Key Lab Rare Earth Dev & Applicat, Guangzhou 510650, Peoples R China
E-mail Addresses
yongyangzhu2016@163.commejwliu@scut.edu.cn
Categories/ Classification
Research AreasMaterials Science
Web of Science Categories
Materials Science, Multidisciplinary