Hydrogen conversion on non-magnetic insulating surfaces
Hydrogen conversion on non-magnetic insulating surfaces
复制标题
非磁性绝缘表面上的氢转化
DOI：
10.1209/0295-5075/104/18001
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
E. Ilisca
中科院分区：
文献类型：
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作者：
E. Ilisca
非磁性绝缘催化剂被证明能够通过电力机制转化氢的非平衡混合物。分子电子通过“费米”接触相互作用感受到原子核和热浴之间的温差，从而将旋转角动量传递给催化剂。这种转移是通过分子和表面离子电子云之间的静电相互作用实现的，通过非对角交换积分来测量。我们的简单单电子激发模型解释了最近使用不同技术（红外或电离光谱）在不同表面（MOF 或 ASW）上观察到的实验转化率，并允许研究不同背景下的转化率：热以及瞬态、金属或氧诱导、离子-分子和分子-分子电子交换。
Non-magnetic insulating catalysts are shown to be able to convert non-equilibrium mixtures of hydrogen by an electric mechanism. The molecular electrons feel the difference of temperature between the nuclei and the thermal bath, through their “Fermi” contact interaction, and consequently transfer the rotational angular momenta to the catalyst. This transfer, realized by the electrostatic interactions between the molecular and surface ionic electron clouds, is measured by non-diagonal exchange integrals. Our simple model of single-electron excitations interprets the experimental conversion rates recently observed on different surfaces (MOF or ASW) with different technics (infrared or ionization spectroscopy) and allows the study of the conversion rates in different contexts: thermal as well as transient, metallic or oxygen-induced, ion-molecule and molecule-molecule electron exchanges.