Solid–Liquid Interfacial Hydrogen Bond‐Mediated Mass Transfer Toward Industrial Water Electrolysis
Abstract
Abstract The rapid migration of reactive ions across the electrolyte–catalytic sites interface is crucial in various catalytic processes. Herein, we introduce hydrogen bonds to bridge the intrinsic gap at the catalyst–electrolyte interface, mediating the diffusion of hydroxide ions. We implemented the aforementioned concept by a library of oxyanions functionalized NiCo OOH, wherein the oxygen atom within the oxyanions established hydrogen bonds with H 2 O molecules in the electrolyte. Operando spectroscopy indicated that both water electrolysis activity and hydroxide concentration exhibited a volcano‐shaped dependence on the electrostatic potential of functionalized group, which formulated the electrostatic potential as descriptors to guide the design of interfacial hydrogen bond‐mediated catalysis. The sulfate‐modified NiCo OOH achieved an ultralow energy consumption of 4.23 kWh m −3 H2 in the industrial electrolyzers, predicting that the electricity consumption can be reduced by 16 000 TWh.
Article Details
Authors (10)
Yu Lin
Bowen Chen
Danji Huang
State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
Zhenhong Yang
State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
Ang Lu
State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
Zhaoyang Shi
State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering
Youwen Liu
State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering
Jiakun Fang
State Key Laboratory of Advanced Electromagnetic Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology
Huiqiao Li
State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering
Tianyou Zhai
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering