title: Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene.
abstract: ZrO2heterophase structure nanocrystals (HSNCs) were synthesized with tunable ratios of monoclinic ZrO2(m-ZrO2) to tetragonal ZrO2(t-ZrO2). The phase mole ratio of m-ZrO2versus t-ZrO2in ZrO2HSNCs was tuned from 40% to 100%. The concentration of the surface hydroxyl groups on m-ZrO2is higher than that on t-ZrO2. ZrO2HSNCs have different surface hydroxyl groups on two crystalline phases. This creates more intimate synergistic effects than their single-phase counterparts. The ZrO2HSNCs were used as effective supports to fabricate heterophase-structured Ru/ZrO2catalysts for benzene-selective hydrogenation. The excellent catalytic performance including high activity and selectivity is attributed to the heterogeneous strong/weak hydrophilic interface and water layer formed at the m-ZrO2/t-ZrO2catalyst junction.
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Zhikun
authors.initials: Z
authors.lastname: Peng
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Xu
authors.initials: X
authors.lastname: Liu
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Shuaihui
authors.initials: S
authors.lastname: Li
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Li
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Baojun
authors.initials: B
authors.lastname: Li
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Zhongyi
authors.initials: Z
authors.lastname: Liu
authors.affiliation: School of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, P R China.
authors.forename: Shouchang
authors.initials: S
authors.lastname: Liu
mesh_terms: D001554:Benzene / Q000737:chemistry*; D002384:Catalysis; D006859:Hydrogen / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry
chemical_list: D012428:Ruthenium; D006859:Hydrogen; D015040:Zirconium; D001554:Benzene