摘要
在全球追求可持续清洁能源的背景下,电解水被视为一种高效生产氢气的方法,其效能极大依赖于催化剂的表现.设计实用催化剂时,活性和稳定性是至关重要的因素.尽管传统研究倾向于使用热力学活性来解释实验结果并指导新型催化材料的开发,研究催化剂的动力学活性和稳定性却未受到足够关注.本文分析了酸性条件下非贵金属催化剂在动力学活性和稳定性方面的局限,并提出了计算评估催化剂稳定性的标准化方法,同时探讨设计低成本、高效能催化剂面临的挑战.
The quest for sustainable and clean energy sources has never been more urgent in the face of ever-increasing global energy demands and environmental concerns.Electrocatalytic water splitting offers a compelling pathway to produce hydrogen-a clean,renewable,and high-energy fuel.The efficiency of this electrochemical process hinges crucially on the performance of the catalysts for the hydrogen evolution reactions(HERs)and oxygen evolution reactions(OERs).In recent decades,there has been a significant push to discover and develop cost-effective,high-performance catalytic materials for this technology.Activity and stability are crucial in designing practical catalysts.Thermodynamic activity,due to its ready accessibility in computation,has been widely used to interpret experimental observations and guide the search for new catalysts.Despite its success,very few catalysts in experiments have matched the activity of their noble metal counterparts in acidic electrolytes.Moreover,while there is extensive research on activity,studies on catalyst stability are notably lacking.
作者
王振斌
Zhenbin Wang(Department of Materials Science and Engineering,City University of Hong Kong,Hong Kong SAR,999077,China;School of Energy and Environment,City University of Hong Kong,Hong Kong SAR,999077,China)
基金
supported by the City University of Hong Kong Start-up Grant (9020004)。
作者简介
Corresponding author:Zhenbin Wang,is currently an Assistant Professor jointly appointed to the Department of Materials Science and Engineering and the School of Energy and Environment at City University of Hong Kong.He received his PhD degree from the University of California,San Diego,in 2018.His current research interests include the study and design of materials for electrocatalysis,utilizing first-principles calculations,and materials informatics.email:zwan22@cityu.edu.hk。
