Flower-like cobalt carbide for efficient carbon dioxide conversion. Issue 57 (17th March 2020)

• Record Type: Journal Article
• Authors: Guo, Qing; Xia, Shu-Guang; Li, Xu-Bing; Wang, Yang; Liang, Fei; Lin, Zhe-Shuai; Tung, Chen-Ho; Wu, Li-Zhu
• Is Part Of: Chemical communications. Volume 56:Issue 57(2020)
• Page Start: 7849
• Page End: 7852
• Publication Date: 2020-03-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc01091j
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Flower-like Co2 C enables photothermal catalytic CO2 –epoxide cycloaddition with yields of up to ∼95% under solar light. Abstract : Catalytic conversion of carbon dioxide (CO2 ) to value-added chemicals under mild conditions is highly desired, albeit with significant challenges. Here, in terms of exposure of abundant active sites and excellent photo-to-thermal conversion properties, flower-like Co2 C has been firstly used for effectively catalysing the cycloaddition of CO2 with epoxides to produce cyclic carbonates with yields of up to 95% under solar light. Density functional theory (DFT) calculations reveal that Lewis acid sites of the surface Co atoms can activate both CO2 and epoxide, thus opening up the possibility of a CO2 -epoxide cycloaddition reaction.