RuP<sub>2</sub>
-Based Catalysts with Platinum-like Activity and Higher Durability for the Hydrogen Evolution Reaction at All pH Values
作者:Zonghua Pu、Ibrahim Saana Amiinu、Zongkui Kou、Wenqiang Li、Shichun Mu
DOI:10.1002/anie.201704911
日期:2017.9.11
Pt‐free catalysts for the hydrogen evolution reaction (HER) are under increasing demand for future energy conversion systems. However, developing HER electrocatalysts with Pt‐like activity that can function at all pH values still remains as a great challenge. Herein, based on our theoretical predictions, we design and synthesize a novel N,P dual‐doped carbon‐encapsulated ruthenium diphosphide (RuP2@NPC)
用于氢析出反应(HER)的高活性,稳定和廉价的无Pt催化剂对未来的能量转换系统的需求日益增长。然而,开发具有可在所有pH值下起作用的具有Pt活性的HER电催化剂仍然是一个巨大的挑战。在此,根据我们的理论预测,我们设计并合成了一种用于HER的新型N,P双掺杂碳包裹的二硫化钌(RuP 2 @NPC)纳米粒子电催化剂。电化学测试表明,与Pt / C催化剂相比,RuP 2 @NPC不仅具有类似Pt的HER活性,而且在10 mA cm -2时(0.5 m H 2 SO 4中为38 mV,1.0 m中为57 mV) 具有较小的过电势。PBS和52 mV(在1.0 m KOH中),但在所有pH值下均表现出优异的稳定性,以及100%的法拉第收率。因此,这项工作增加了在HER中具有先进性能的过渡金属磷化物/杂原子掺杂的碳异质结构家族的增长。