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In-Situ HP-STM and Operando EC-STM Studies of Heterogeneous Catalysis at Interfaces 被引量:2
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作者 Lei Xie Chaoqin Huang +3 位作者 Zhaofeng Liang Hongbing Wang Zheng Jiang Fei Song 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2022年第10期29-44,共16页
Heterogeneous catalysis taking place at solid interfaces plays a crucial role not only in industrial chemical production, energy conversion but also in fundamental research. The dynamic evolution of surface morphology... Heterogeneous catalysis taking place at solid interfaces plays a crucial role not only in industrial chemical production, energy conversion but also in fundamental research. The dynamic evolution of surface morphology and composition requires full understanding especially under realistic reaction conditions. To this end, conventional scanning tunneling microscopy(STM) has been integrated with high pressure cell and electrochemical cell, forming high pressure(HP) STM and electrochemical(EC) STM for the in-situ/operando characterization at solid-gas and solid-liquid interfaces with atomic resolution, respectively. In this review, we attempt to give a brief introduction to the development and working principle of these two techniques and subsequently summarize several representative progresses in recent days. The dynamic changes in active sites, surface reconstruction, absorbates alteration and products formation are directly characterized in a combination with other surface sensitive technologies. The correlation between surface structures and catalytic performance as well as the underlying mechanism can thus be unraveled, which provides insights into the rational design and optimization of catalysts. 展开更多
关键词 hp-stm EC-STM heterogeneous catalysis IN-SITU OPERANDO INTERFACES
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