《Copper Isolated Sites on N-Doped Carbon Nanoframes for Efficient Oxygen Reduction》 was written by Huang, Cong; Zheng, Lirong; Feng, Wenshuai; Guo, Aimin; Gao, Xiaohui; Long, Zhen; Qiu, Xiaoqing. COA of Formula: C10H16CuO4 And the article was included in ACS Sustainable Chemistry & Engineering in 2020. The article conveys some information:
In recent years, metal isolated site catalysts with the high exposure and maximized availability of metal species provide a new route to boost the oxygen reduction performance. However, in the absence of clusters and nanoparticles, the synthesis of this catalyst with metal high-loading, especially for copper, is still a big challenge. In this work, a metal isolated site catalyst with high copper content (1.12 wt %), copper isolated sites anchored on N-doped carbon materials (donated as Cu ISs/NC-1000), was prepared by the pyrolysis of copper acetylacetone within the metal-organic framework (ZIF-8) at 1000°C. The successful preparation of products can be demonstrated by high-angle annular dark-field scanning transmission electron microscopy and X-ray absorption spectra. With the merits of the atomically dispersed surface metal atoms and abundant ORR-favored copper active sites, the present Cu ISs/NC-1000 exhibits an excellent ORR electrochem. activity with a half-wave potential of 0.855 V (vs RHE) and a limiting c.d. of 5.2 mA cm-2 in the electrochem. tests, superior to the results from com. Pt/C and previously reported Cu-based materials. For the durability, the negligible activity decay after 10,000 continuous potential cycles and good resistance to methanol crossover can be noted. The outstanding catalytic activity from the present Cu ISs/NC-1000 demonstrates the superiority of metal isolated sites as electrocatalytic centers. The excellent ORR activity of Cu ISs/NC catalysts in this work promotes the development of clean and sustainable energy devices. In the part of experimental materials, we found many familiar compounds, such as Bis(acetylacetone)copper(cas: 13395-16-9COA of Formula: C10H16CuO4)
Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. COA of Formula: C10H16CuO4
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”