Rh nanoparticles with NiOx surface decoration for selective hydrogenolysis of C-O bond over arene hydrogenation

Jiaguang Zhang (1) , Mona Ibrahim (2, 3) , Vincent Collière (2, 3) , Hiroyuki Asakura (4) , Tsunehiro Tanaka (5, 6) , Kentaro Teramura (6, 7) , Karine Philippot (2) , Ning Yan (1)

1 Department of Chemical and Biomolecular Engineering, National University of Singapore
2 LCC - Laboratoire de chimie de coordination
3 UT3 - Université Toulouse III - Paul Sabatier
4 Synchrotron Radiation Research Center, Nagoya University
5 Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
6 Unit of Element Strategy Initiative for Catalysts & Batteries, ESICB, Kyoto University
7 Japan Sci & Technol Agcy, PRESTO, Saitama, Japan

Surface decoration strategy is applied to design NP catalyst for the selective hydrogenolysis of C-O bond without hydrogenating benzene ring, which is critical in lignin conversion under hydrogen treatment. The synthesized NiOx/Rh NPs are featured with-Rh core whose surface is partially blocked by NiOx which segregated the surface terrace zones into smaller segments, preventing the coordination and hydrogenation of benzene rings. Moreover, the NiOx shows, no electronic modification to the Rh core, thereby the blockage effect of NiOx only inhibits the hydrogenation of benzene ring but not affect the hydrogenolysis activity-of Rh core.

Domaines: Chimie de coordination

Jiaguang Zhang, Mona Ibrahim, Vincent Collière, Hiroyuki Asakura, Tsunehiro Tanaka, et al.. Rh nanoparticles with NiOx surface decoration for selective hydrogenolysis of C-O bond over arene hydrogenation. Journal of Molecular Catalysis A: Chemical, 2016, 422, pp.188-197. ⟨10.1016/j.molcata.2016.01.014⟩. ⟨hal-01930471⟩