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气泡水/催化剂三相接口微环境通过优化半疏水性OH基来加速光催化OER

Guanhua Ren¹, Min Zhou¹, Peijun Hu^1,2

¹State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, China.

Nature communications

|March 16, 2024

概括

温度令人惊地加快了光催化剂水分裂的速度.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
物理化学物理化学

背景情况:

光催化水分裂 (PWS) 是太阳能转换的关键.
氧进化反应 (OER) 是PWS的一个瓶.
温度对OER动力学的影响在原子水平上还没有完全理解.

研究的目的:

阐明PWS中温度加速的OER的机制.
调查接口微环境在OER动力学中的作用.
提出提高没有外部加热的开放式能源利用率的策略.

主要方法:

对TiO2的计算建模 (水界面).
对界面微环境与温度变化的分析.
研究键网络和质子转移动态.

主要成果:

温度诱导接口变化,形成气泡-水/TiO2的三相接口.
液体-蒸汽的共存放松了键网络,促进了OER.
2的疏水性修饰 (TiO2(110) 增强了没有加热的OER.

结论:

界面微环境的修改对于优化OER动力学至关重要.
对于PWS催化剂设计的策略可以利用接口工程.
这项工作为有效的太阳能转化为化学能量的转化提供了新的途径.

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