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引用次数: 0
摘要
通过比较各种金属对氢进化反应（HER）的催化活性，我们发现EN值高且含有两个或更多可触及的部分填充轨道（PFO）的金属可支持氢进化反应的高交换电流密度i0,H（A cm - 2）。然而，EN 值低和/或只有一个或没有 PFO 的金属则无法支持较高的 i0,H 值。由此得出结论，金属原子的EN 和 PFO 在催化行为中起着决定性作用。讨论了过渡金属原子的EN 和 VEC 与 HER 催化活化的关系，并提出了 HER 在各种金属电极上的新型反应机制
Perspective—A New View on the Mechanism of the Hydrogen Evolution Reaction on Various Transition Metal Electrodes
By comparing the catalytic activity of the hydrogen evolution reaction (HER) from various metals, we find that metals with high EN and containing two or more accessible partially filled orbitals ( PFOs) can support high exchange current density i0,H(A cm - 2 ) for HER. However, metals with low EN and/or with just one or no PFOs are unable to support high i0,H values. It is concluded that the EN and PFOs of the metal atoms play a decisive role in catalytic behavior. EN and VEC of the atoms of transition metals in relation to catalytic activation for HER is discussed and a new type of reaction mechanism of HER on various metal electrodes is suggested
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