A Mechanism for Water Splitting and Hydrogen Absorbing Functions of Metal-Oxide Layered Hydrogen Storage Materials Studied by Means of Ion Beam Analysis Techniques (Review Paper)
A Mechanism for Water Splitting and Hydrogen Absorbing Functions of Metal-Oxide Layered Hydrogen Storage Materials Studied by Means of Ion Beam Analysis Techniques (Review Paper)
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利用离子束分析技术研究金属氧化物层状储氢材料的水分解和吸氢功能机制（综述论文）
DOI：
10.1002/sia.5359
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发表时间：
2014
影响因子：
1.7
通讯作者：
K. Morita and B. Tsuchiya
中科院分区：
文献类型：
--
作者：
B. Tsuchiya;K. Morita,S. Nagata;T. Kato;Y. Iriyama;H. Tsuchida and T. Majima;K. Morita and B. Tsuchiya
本文综述了利用离子束分析技术研究金属氧化物层状材料和储氢材料表面水分解和氢气释放的催化作用及其应用。首先描述了水在氧化物表面分裂的微观模型和体中氢原子的质量平衡方程。后者是一个单向扩散模型的数学表达式，该模型提出了在水蒸汽中质子(H)注入钙钛矿氧化物陶瓷中的氘(D)在D - H和H - D替换中的异常同位素效应，反之亦然。后一种模型发现了水在表面分解和氢气从体中释放的催化功能。其次，给出了异常同位素效应的实验结果，并详细描述了D-H替代率。随后给出了用巴赫法测量H2gas排放的结果，为氧化表面的水裂解和氢气排放的催化作用提供了明确的证据。最后，我们给出了金属氧化物层状储氢材料作为水裂解和吸氢催化剂的吸氢和发射特性的实验数据。版权所有©2014 John Wiley & Sons， Ltd。
This review describes a study of catalytic functions of water splitting at the surface and hydrogen gas emitting from the bulk of metal–oxide layered materials as well as hydrogen storage materials as its application by means of the ion beam analysis techniques. First are described a microscopic model for water splitting at the oxide surface and mass balance equations for hydrogen atoms in the bulk. The latter is a mathematical expression of a one‐way diffusion model proposed for an anomalous isotope effect in D–H and H–D replacements of both deuterium (D) implanted into perovskite oxide ceramics by protium (H) in H2O vapour and the vise versa. The latter model brings about finding of catalytic functions of water splitting at the surface and hydrogen gas emitting from the bulk. Second, experimental results on the anomalous isotope effect are presented and the D–H replacement rates are described in detail. Subsequently are shown results on H2gas emission measured with a Bach method, which give a clear evidence for the water splitting and hydrogen gas emitting catalytic functions of the oxide surface. Finally, we present experimental data on the hydrogen absorption and emission characteristics of the metal–oxide layered hydrogen storage materials as an application of the water splitting and hydrogen absorbing catalysts. Copyright © 2014 John Wiley & Sons, Ltd.