Electrochemical hydrogen evolution reaction in neutral media is listed as the most difficult challenges of energy catalysis due to the sluggish kinetics. Herein, the Ir-H_xWO₃ catalyst is readily synthesized and exhibits enhanced performance for neutral hydrogen evolution reaction. H_xWO₃ support is functioned as proton sponge to create a local acid-like microenvironment around Ir metal sites by spontaneous injection of protons to WO₃, as evidenced by spectroscopy and electrochemical analysis. Rationalize revitalized lattice-hydrogen species located in the interface are coupled with H_ad atoms on metallic Ir surfaces via thermodynamically favorable Volmer-Tafel steps, and thereby a fast kinetics. Elaborated Ir-H_xWO₃ demonstrates acid-like activity with a low overpotential of 20 mV at 10 mA cm⁻² and low Tafel slope of 28 mV dec⁻¹, which are even comparable to those in acidic environment. The concept exemplified in this work offer the possibilities for tailoring local reaction microenvironment to regulate catalytic activity and pathway.

中性介质中的电化学析氢反应由于动力学缓慢而被列为能源催化领域最困难的挑战。在此，Ir-H _x WO ₃催化剂易于合成并且表现出增强的中性析氢反应性能。H _x WO _{3载体充当质子海绵，通过向WO 3}自发注入质子，在Ir金属位点周围创建局部类酸微环境，如光谱学和电化学分析所证明。_{合理化位于界面的再生晶格氢物种与 H ad}耦合通过热力学有利的 Volmer-Tafel 步骤，金属 Ir 表面上的原子，从而实现快速动力学。精心设计的Ir-H _x WO ₃表现出类酸活性，在10 mA cm ^-2下具有20 mV的低过电势和28 mV dec ^-1的低塔菲尔斜率，甚至可以与酸性环境中的活性相媲美。这项工作中例证的概念为定制局部反应微环境以调节催化活性和途径提供了可能性。