Hits:

Title of Paper:Intrinsic correlation of fragmentation and self-motion with macro-strain accumulation and hydriding/dehydriding in metal hydrides reactor in particle view

Journal:Journal of Energy Storage

Place of Publication:Elsevier

Summary:A multi-scale in-situ visual quantitative analysis system has been developed to enable real-time, monitoring breathing behaviors of metal hydrides reactor (MHR). The system enables observation of metal hydride expansion, pulverization, and motion, while establishing correlations between crack evolution during hydriding/dehydriding and both strain accumulation and regional reaction behavior. The results indicate that strain accumulation and regional variations in hydriding rates are strongly correlated with crack evolution, which originates from particle rearrangement. The transition of MH particles from a homogeneous, loosely packed state to a heterogeneous, compacted structure can be evidenced by the dynamic breathing behavior of cracks. Dynamic intervention and dispersion effects effectively regulate the spatial distribution of particles, reset strain accumulation patterns, and enhance region mass transfer behavior. Compared with conventional reactors, the strain at the fifth cycle is significantly reduced from 9.85 mε to 1.41 mε, corresponding to a decrease of 85.7%. The hydriding rates in the upper, middle, and lower reactor wall regions increase by 16.7%, 2.9%, and 43.4%, respectively, resulting in an overall improvement of 21% (at a reaction fraction of 0.9).

First Author:Yang Zhang

Correspondence Author:Jingcai Chang

All the Authors:Xinan Zhang,Haoran Wu,Yulin Huang,Chen Huang,Yiming Wang,Zehao Li,Chunyan Xu,Zuoli He

Document Code:123871

Discipline:Engineering

First-Level Discipline:Environmental Science and Engineering

Document Type:J

Volume:179

Page Number:123871

DOI Number:10.1016/j.est.2026.123871

Number of Words:6000

Translation or Not:No

Date of Publication:2026-08

Included Journals:SCI

Links to Published Journals:https://doi.org/10.1016/j.est.2026.123871

Release Time:2026-08-06