Investigation on the hydrogen storage stability and hydrogenation kinetics of titanium sponge

IF 1.6 3区化学 Q3 CHEMISTRY, ANALYTICAL Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-12-31 DOI:10.1007/s10967-024-09928-2

Zhijun Ma, Yongqiang Wan, Yang Xu, Jiyao Bai, Yonglin He, Xiaojun Ding, Keliang Shi

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Abstract

The characterization of hydrogen adsorption thermodynamic and kinetic parameters is essential for predicting and rational designing elements that will make up nuclear fusion reactors. Titanium sponge is a promising material for hydrogen isotopes storage thanks to its stability, effectiveness, and economical process. Therefore, it is important to investigate the experimental adsorption data for hydrogen storage of titanium sponge, including lifespan, hydrogenation thermodynamics and kinetics. Herein, a commercial titanium sponge exhibits excellent hydrogen adsorption and desorption stability even after 30 cycles. During the adsorption process, the α-β phase transition and β-δ phase transitions were observed. The fitting equilibrium pressure of hydrogen absorption at room temperature was found to be 2.07 × 10^–4 Pa. The adsorbed hydrogen can be released entirely at 800 °C when the pressure of system is lower than the equilibrium hydrogen pressure of titanium hydride. This work shows that titanium sponges present a practical solution for the stable and efficient storage of hydrogen isotopes.

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海绵钛的储氢稳定性及加氢动力学研究

氢吸附热力学和动力学参数的表征对于预测和合理设计构成核聚变反应堆的元件至关重要。海绵钛因其稳定、有效、经济等优点，是一种很有前途的氢同位素储存材料。因此，研究海绵钛的实验吸附数据，包括寿命、加氢热力学和动力学，对储氢具有重要意义。在本研究中，商业海绵钛在30次循环后仍表现出优异的氢吸附和解吸稳定性。吸附过程中观察到α-β相变和β-δ相变。室温下吸氢平衡压力为2.07 × 10-4 Pa。在800℃时，当系统压力低于氢化钛的平衡氢气压力时，吸附的氢气可以完全释放。这项工作表明，钛海绵为稳定有效地储存氢同位素提供了一种实用的解决方案。

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.