Article

Surface Synergetic Effects of Ni–ReO<sub><i>x</i></sub> for Promoting the Mild Hydrogenation of Furfural to Tetrahydrofurfuryl Alcohol

Wei LinNational Key Laboratory of Biobased Transportation Fuel Technology, School of Chemical Engineering, Henan Center for Outstanding Overseas Scientists, Zhengzhou University, Zhengzhou 450001, ChinaYi ChenNational Key Laboratory of Biobased Transportation Fuel Technology, School of Chemical Engineering, Henan Center for Outstanding Overseas Scientists, Zhengzhou University, Zhengzhou 450001, ChinaYuexing ZhangCollege of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, P. R. ChinaYongsheng ZhangCollege of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, P. R. ChinaJianshe WangNational Key Laboratory of Biobased Transportation Fuel Technology, School of Chemical Engineering, Henan Center for Outstanding Overseas Scientists, Zhengzhou University, Zhengzhou 450001, ChinaLiucheng WangNational Key Laboratory of Biobased Transportation Fuel Technology, School of Chemical Engineering, Henan Center for Outstanding Overseas Scientists, Zhengzhou University, Zhengzhou 450001, ChinaChunbao XuSchool of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SARRenfeng NieNational Key Laboratory of Biobased Transportation Fuel Technology, School of Chemical Engineering, Henan Center for Outstanding Overseas Scientists, Zhengzhou University, Zhengzhou 450001, China

2023en

ABI

Abstract

Ni–ReOx bimetallic catalysts (Ni–ReOx/TiO2) were prepared through a successive impregnation method, which is extremely active in furfural (FAL) hydrogenation to tetrahydrofurfuryl alcohol (THFOL) under mild reaction conditions. For instance, high FAL initial reaction rate (439.4 mmol/g-Ni/h) and THFOL formation rate (80.4 mmol/g-Ni/h) were achieved over Ni–5ReOx/TiO2, which are 13.2 and 6.6 times higher than those of Ni/TiO2, respectively. The unique catalyst reactivity derives from rich Lewis acidic ReOx and intimate electron interaction of ReOx with Ni NPs. Kinetic studies reveal that ReOx decoration decreases the activation barrier of −C═O hydrogenation other than the furan ring. Mechanism studies show that ReOx has a good affinity for C═O and H2 and favors hydrogen spillover and C═O bond activation on Ni, thus reinforcing the synergistic effect of Ni and ReOx. This catalyst is versatile for various furan aldehydes and is relatively stable for 5 times recycling, showing relative potential for industrial application.

Identifiers

DOI: 10.1021/acscatal.3c01217

Citations and references

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