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1篇 您的检索式:作者名="Zhongcheng Xia"
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1Promoting the electrochemical hydrogenation of furfural by synergistic Cu^(0)−Cu^(+) active sites显示文摘Electrochemical hydrogenation(ECH)of furfural,which uses the proton from water and avoids the usage of gaseous hydrogen and high pressure,is an efficient way to utilize biomass energy.Cu-based catalysts are promising catalysts for the ECH of furfural.However,their active sites and reaction mechanism have not been fully understood yet.This work unveils the active oxidation state of Cu-based electrocatalysts for the ECH of furfural.The co-existence of Cu^(+)and Cu^(0) on the CuO surface under the working potential is confirmed by a series of in situ characterizations.The poisoning experiment shows that the performance decreased heavily after the Cu^(+)was complexed with SCN−,indicating the decisive role of Cu^(+).Finally,the density functional theory(DFT)calculation suggests that the Cu^(0)−Cu^(+)synergistic effect is beneficial to both kinetics and thermodynamics:Cu^(+)accelerates the second step hydrogenation process of furfural,and Cu^(0) reduces the energy barrier for the desorption of furfuryl alcohol.This work demonstrates the synergistic effect of Cu^(0) and Cu^(+)states for the electrochemical hydrogenation of furfural and provides a deeper understanding of the furfural hydrogenation mechanism.Zhongcheng Xia Yingying Li Jingcheng Wu Yu-Cheng Huang Weixing Zhao Yuxuan Lu Yuping Pan Xu Yue Yanjing Wang Chung-Li Dong Shuangyin Wang Yuqin Zou 2022Science China Chemistry2022,65,12:0
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