Engineering the Interface Between Au Nanoparticles and CoO-Ov to Enhance the Catalytic Performance of 5-Hydroxymethylfurfural (HMF) to 2,5-Dimethylfuran (DMF)
Shuang Xiang, Yong Guo, Xiaohui Liu, Yanqin Wang
Chemical Research in Chinese Universities ›› 2023, Vol. 40 ›› Issue (1) : 47-54.
Engineering the Interface Between Au Nanoparticles and CoO-Ov to Enhance the Catalytic Performance of 5-Hydroxymethylfurfural (HMF) to 2,5-Dimethylfuran (DMF)
The interface between Au and support has attracted extensive interest because of its unique catalytic ability for hydrogen activation in catalytic hydrogenation/hydrogenolysis reactions. Herein, we create the Au-CoO-OV interface in the 1.0%Au/Co3O4-Rod-250 catalyst, which could dissociate H2 via the heterolytic way to yield rich hydride species and achieve excellent catalytic performance in the hydrogenolysis of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF). The XRD and HRTEM analyses show that Au nanoparticles are uniformly dispersed on CoO-OV surface and in situ DRIFTS spectra show the enhancement of heterolytic dissociation of hydrogen (signals of Au—D and O—D vibration) compared with bare CoO (Co3O4-Rod-250). This work provides insights for fabricating highly active Au-support catalysts for catalytic hydrogenation/hydrogenolysis reactions.
Au-CoO-OV interface / Hydride species / Heterolytic dissociation / 5-Hydroxymethylfurfural (HMF) / 2,5-Dimethylfuran (DMF)
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