Herein, the merits of heterojunction, CeO₂, and W are employed to design and prepare the PtCoW@CeO₂ heterojunction catalyst, which can accelerate water dissociation and improve the desorption of OH_ad, displaying efficient hydrogen evolution reaction (HER) performance in pH-universal conditions. Density functional theory calculation results reveal that the electronic structure of Pt is regulated by CeO₂ and W, which tunes the Pt–H_ad bond strength to boost HER intrinsic activity. Consequently, electrochemical results display that it has low potentials of −26, −25, and −23 mV at −10 mA cm⁻² in alkaline, neutral, and acidic solutions, respectively, and it can stably cycle for 50,000 cycles. Thus, this work provides the guidance for developing high-performance Pt-based catalysts in pH-universal environments.

_{在此，利用异质结、CeO 2}和W的优点设计和制备了PtCoW@CeO _{2异质结催化剂，该催化剂可以加速水离解并改善OH ad}的解吸，在pH条件下表现出高效的析氢反应（HER）性能- 通用条件。密度泛函理论计算结果表明，Pt 的电子结构受 CeO ₂和 W 的调节，从而调节 Pt-H 的_键合强度以提高 HER 的内在活性。因此，电化学结果显示它在 -10 mA cm ^{-2时具有 -26、-25 和 -23 mV 的低电位}分别在碱性、中性和酸性溶液中稳定循环5万次。因此，这项工作为在 pH 通用环境中开发高性能 Pt 基催化剂提供了指导。