Enhanced catalytic performance of Pd‐Ga bimetallic catalysts for 2‐ethylanthraquinone hydrogenation | Zendy

Wang Yunhao | Zendy; Peng Mao | Zendy; Ye Chenliang | Zendy; Gan Changna | Zendy; Zhang Jinli | Zendy; Guo Cuili | Zendy

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Enhanced catalytic performance of Pd‐Ga bimetallic catalysts for 2‐ethylanthraquinone hydrogenation

Author(s) -

Wang Yunhao,

Peng Mao,

Ye Chenliang,

Gan Changna,

Zhang Jinli,

Guo Cuili

Publication year - 2019

Publication title -

applied organometallic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.53

H-Index - 71

eISSN - 1099-0739

pISSN - 0268-2605

DOI - 10.1002/aoc.5076

Subject(s) - bimetallic strip , catalysis , chemistry , chemisorption , adsorption , desorption , x ray photoelectron spectroscopy , dispersion (optics) , hydrogen peroxide , hydrogen , nuclear chemistry , chemical engineering , inorganic chemistry , organic chemistry , physics , optics , engineering

A series of Pd and Pd‐Ga bimetallic catalysts were prepared by a co‐impregnation method for 2‐ethylanthraquinone (EAQ) hydrogenation to produce hydrogen peroxide. Compared with 0.6Pd catalyst, the hydrogenation efficiency of 0.6Pd1.2Ga catalyst (11.9 g L −1 ) increases by 32.2%, and the stability of 0.6Pd1.2Ga catalyst is also higher than that of 0.6Pd catalyst. The structures of the samples were determined by N 2 adsorption–desorption, ICP, XRD, CO chemisorption, TEM, H 2 ‐TPR, in situ CO‐DRIFTS and XPS. The results suggest that incorporation of Ga species improves Pd dispersion and generates a strong interaction between Ga 2 O 3 and Pd interface or between Pd and support. DFT calculation results indicate that the strong adsorption of carbonyl group on Ga 2 O 3 /Pd interface facilitates the activation of EAQ and promotes the hydrogenation efficiency.

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