Aqueous phase partial hydrodeoxygenation of lignin-derived phenols over Al2O3-SiO2 microspheres supported RuMn multifunctional catalyst: Synergic effect among Ru, Mn and Al2O3-SiO2 support

Autor: Mengting Chen, Qifeng Zhong, Meihua Zhang, Hao Huang, Yingxin Liu, Zuojun Wei
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Catalysis Communications, Vol 172, Iss , Pp 106550- (2022)
Druh dokumentu: article
ISSN: 1873-3905
DOI: 10.1016/j.catcom.2022.106550
Popis: Herein, RuMn/Al2O3-SiO2 multifunctional catalyst was prepared and efficiently converted lignin-derived phenols into cyclohexanol by aqueous partial hydrodeoxygenation (HDO). The optimal RuMn/Al2O3-SiO2 (Ru/Mn = 2) catalyst achieved 96.8% of cyclohexanol yield with 100% guaiacol conversion under mild reaction conditions (180 °C and 2.0 MPa H2) for 4 h, with a turnover frequency (TOF) of 861.1 h−1, which is better than most results reported. The high performance of RuMn/Al2O3-SiO2 was attributed to the synergic effect of highly dispersed Ru nanoparticles with small size (1.25 nm), the microsphere structure, the appropriate acid sites from Al2O3-SiO2 and acid-base sites from MnOx.
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