The Heterostructure of Ru2P/WO3/NPC Synergistically Promotes H2O Dissociation for Improved Hydrogen Evolution

• DOI: 10.1002/anie.202014411
• Publication Date: 2020-11-11T08:14:54Z
• Authors: Xiaoli Jiang; Haeseong Jang; Shangguo Liu; Zijian Li; Min Gyu Kim; Chuang Li; Qing Qin; Xien Liu; Jaephil Cho
• Keywords: Overpotential

Abstract Facilitating the dissociation of water and desorption hydrogen are both crucial challenges for improving evolution reaction (HER) in alkaline media. Herein, we report synthesis heterostructure Ru 2 P/WO 3 @NPC (N, P co‐doped carbon) by a simple hydrothermal using ruthenium tungsten salts as precursors, followed pyrolyzing under an Ar atmosphere. The electrocatalyst exhibits outstanding HER activity with overpotential 15 mV at current density 10 mA cm −2 excellent durability 1.0 M KOH solution, outperforming state‐of‐the‐art Pt/C most reported electrocatalysts. Experimental results combined functional calculations reveal that electron redistribution is achieved transfer from NPC to WO , which directly promotes on W sites P.