Chinese Journal of Catalysis ›› 2017, Vol. 38 ›› Issue (11): 1870-1879.DOI: 10.1016/S1872-2067(17)62904-8

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Selective suppression of toluene formation in solvent-free benzyl alcohol oxidation using supported Pd-Ni bimetallic nanoparticles

Jianwei Chea, Mengjia Haoa, Wuzhong Yia, Hisayoshi Kobayashib, Yuheng Zhoua, Liping Xiaoa, Jie Fana   

  1. a Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, China;
    b Department of Chemistry and Materials Technology, Kyoto Institute of Technology, Kyoto 606-8585, Kyoto Prefecture, Japan
  • Received:2017-07-12 Revised:2017-08-13 Online:2017-11-18 Published:2017-11-24
  • Contact: 10.1016/S1872-2067(17)62904-8
  • Supported by:

    This work was supported by National Natural Science Foundation of China (21271153, 21373181, 21222307, U1402233), Major Research Plan of National Natural Science Foundation of China (91545113), and the Fundamental Research Funds for the Central Universities (2014XZZX003-02).

Abstract:

The solvent-free oxidation of benzyl alcohol was studied using supported Pd-Ni bimetallic nanopar-ticles. Compared with monometallic Pd, the addition of Ni to Pd was found to be effective in sup-pressing the nondesired product toluene, thereby enhancing the selectivity towards benzaldehyde. This result was attributed to a dual effect of Ni addition:the weakening of dissociative adsorption of benzyl alcohol and the promotion of oxygen species involved in the oxidation pathway.

Key words: Palladium-nickel, Bimetallic nanoparticle, Benzyl alcohol, Toluene, Solvent-free, Oxidation