电催化反应电极界面纳微气泡多尺度研究进展
Advances in multi-scale nano-micro bubble evolution of electrocata-lysis reaction electrode interfaces
褚俊杰 1王宗旭 2白璐 2刘亚伟 2董海峰 3冯佳奇 1张香平4
作者信息
- 1. 中国石油大学(北京),化学工程与环境学院,北京 102249
- 2. 中国科学院过程工程研究所,离子液体清洁过程北京市重点实验室,北京 100190
- 3. 中国科学院过程工程研究所,离子液体清洁过程北京市重点实验室,北京 100190;先进能源科学与技术广东省实验室,惠州 516000
- 4. 中国石油大学(北京),化学工程与环境学院,北京 102249;中国科学院过程工程研究所,离子液体清洁过程北京市重点实验室,北京 100190
- 折叠
摘要
在电解水制氢、电催化还原CO2等过程中,常伴随着电极表面纳微气泡的产生,其中气泡的成核、生长、运动等演变行为会极大影响电极表面活性位点的覆盖和释放,进而影响电化学反应效率.因此,电催化反应界面气泡的演化行为及调控机制,以及其如何影响反应速率、反应稳定性及选择性,是当前研究的热点.本文综述了电催化反应中电极界面纳微气泡的多尺度演化过程及其与电催化性能间的构效关系的研究进展,阐述了气泡的成核、生长和脱离的演化机制;以电解水制氢和CO2电催化还原反应为典型研究体系,重点论述了电极结构和电解液设计对纳微气泡演化行为和反应效率的影响规律;从实验研究和计算角度,对电催化反应中电极界面纳微气泡的重点研究工作及发展趋势进行了展望.
Abstract
The process of electrocatalytic reduction,including hydrogen evolution reaction(HER)and CO2 electroreduction(CO2ER),involves the generation of nano-micro bubbles on the electrode surface.The evolution of these bubbles,including nucleation,growth,and movement,often leads to the reduction of the active electrode area,thereby affecting the electrochemical reaction efficiency.Therefore,current research focuses on understanding the evolutionary behavior and regulatory mechanism of surface bubbles during electrocatalytic reactions.This work presented the multi-scale evolution process of surface bubbles and their relationship with electrocatalysis performance.Besides,the mechanisms of bubble nucleation,growth,and detachment were introduced.Subsequently,regulating strategies of nano-micro bubbles behavior in HER and CO2ER were discussed in detail.Finally,we described the current research and development trends of nanoscale bubbles at electrode surface in electrocatalytic reactions from both experimental and computational perspectives.
关键词
电极界面/纳微气泡/电催化/气泡演化行为Key words
electrode interface/micro-nano bubbles/electrocatalysis/bubble evolution引用本文复制引用
基金项目
中国石油大学(北京)科研基金(2462022YJRC012)
中国科学院科研仪器设备研制项目(YJKYYQ20200062)
出版年
2024
NETL
NSTL
万方数据