Oxygen vacancies in Cu/TiO2 boost strong metal-support interaction and CO2 hydrogenation to methanol was written by Zhang, Chenchen;Wang, Letian;Etim, Ubong Jerome;Song, Yibing;Gazit, Oz M.;Zhong, Ziyi. And the article was included in Journal of Catalysis in 2022.Safety of Cuprichydroxide This article mentions the following:
How to efficiently activate and convert CO2 through hydrogenation to value-added chems. is a major challenge. This work investigates the role of oxygen vacancy (Ov) in the Cu/TiO2 catalysts, which are promising for this reaction. The TiO2-x support was pre-reduced in high-pressure H2 gas at different temperatures to generate Ov with different concentrations Cu/TiO2-x-500 with TiO2 pre-reduced at 500 °C showed much higher CO2 conversion and CH3OH selectivity than the other Cu/TiO2 catalysts. The Ov in the reduced TiO2 induced a strong metal-support interaction (SMSI) between Cu and TiO2 at relatively low temperatures Although the SMSI caused partial covering of the Cu nanoparticles by TiO2-x, the Ov in the newly formed interface could facilitate the activation of the CO2 mols. and promote the formation of the proper reaction intermediates for methanol formation. Various characterizations, including DFT calculations, revealed the detailed structural evolution of CO2 to methanol on the Cu/TiO2 catalyst, and it follows the Formate pathway. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Safety of Cuprichydroxide).
Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Safety of Cuprichydroxide
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”