Structural evolution and strain generation of derived-Cu catalysts during CO2 electroreduction was written by Lei, Qiong;Huang, Liang;Yin, Jun;Davaasuren, Bambar;Yuan, Youyou;Dong, Xinglong;Wu, Zhi-Peng;Wang, Xiaoqian;Yao, Ke Xin;Lu, Xu;Han, Yu. And the article was included in Nature Communications in 2022.Reference of 20427-59-2 This article mentions the following:
Copper (Cu)-based catalysts generally exhibit high C2+selectivity during the electrochem. CO2 reduction reaction (CO2RR). However, the origin of this selectivity and the influence of catalyst precursors on it are not fully understood. We combine operando X-ray diffraction and operando Raman spectroscopy to monitor the structural and compositional evolution of three Cu precursors during the CO2RR. The results indicate that despite different kinetics, all three precursors are completely reduced to Cu(0) with similar grain sizes (鈭?1 nm), and that oxidized Cu species are not involved in the CO2RR. Furthermore, Cu(OH)2– and Cu2(OH)2CO3-derived Cu exhibit considerable tensile strain (0.43%鈭?.55%), whereas CuO-derived Cu does not. Theor. calculations suggest that the tensile strain in Cu lattice is conducive to promoting CO2RR, which is consistent with exptl. observations. The high CO2RR performance of some derived Cu catalysts is attributed to the combined effect of the small grain size and lattice strain, both originating from the in situ electroreduction of precursors. These findings establish correlations between Cu precursors, lattice strains, and catalytic behaviors, demonstrating the unique ability of operando characterization in studying electrochem. processes. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Reference of 20427-59-2).
Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Reference of 20427-59-2
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”