In-depth understanding of the catalytic active sites is of paramount importance for the design of efficient electrocatalysts for CO2 conversion. Here we highlight the structural evolution of SnO2 nanosheets for electrocatalytic CO2 reduction. The transformation of SnO2 into metallic Sn would occur on the surface of catalyst during the catalytic process, followed by enhanced selectivity and activity for the conversion of CO2 to HCOOH. Electrocatalytic characterization and structural analysis demonstrate that the metallic Sn derived from structural evolution plays a dominant role in the CO2 reduction to HCOOH. This work deepens the understanding of the catalytic mechanism and provides a new pathway for the rational design of advanced electrocatalysts for CO2 reduction.

中文翻译：

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SnO2纳米片向电催化CO2还原的结构演变研究。

深入了解催化活性位点对于设计用于CO2转化的高效电催化剂至关重要。在这里，我们重点介绍了用于电催化还原CO2的SnO2纳米片的结构演变。在催化过程中，SnO2向金属Sn的转化将发生在催化剂表面，随后提高了CO2转化为HCOOH的选择性和活性。电催化表征和结构分析表明，结构演变衍生的金属锡在将CO2还原为HCOOH方面起主要作用。这项工作加深了对催化机理的理解，并为合理设计用于还原CO2的高级电催化剂提供了一条新途径。