Atomically Dispersed Pd Atoms on a Simple MgO Support with an Ultralow Loading for Selective Hydrogenation of Acetylene to Ethylene | Zendy

Qin Chao | Zendy; Guo Qing | Zendy; Guo Jianping | Zendy; Chen Ping | Zendy

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Atomically Dispersed Pd Atoms on a Simple MgO Support with an Ultralow Loading for Selective Hydrogenation of Acetylene to Ethylene

Author(s) -

Qin Chao,

Guo Qing,

Guo Jianping,

Chen Ping

Publication year - 2021

Publication title -

chemistry – an asian journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.18

H-Index - 106

eISSN - 1861-471X

pISSN - 1861-4728

DOI - 10.1002/asia.202100218

Subject(s) - acetylene , ethylene , selectivity , catalysis , materials science , heterolysis , photochemistry , fourier transform infrared spectroscopy , chemical engineering , chemistry , organic chemistry , engineering

We report a simple and efficient Pd/MgO catalyst loaded with ppm level of Pd (7.8 ppm) for semi‐hydrogenation of acetylene to ethylene. The catalyst showed excellent performance with high acetylene conversion (97%), high ethylene selectivity (89%) and good stability. Moreover, the atomically dispersed Pd atoms are inactive for ethylene hydrogenation. Isotopic and FTIR results suggest that H 2 dissociates at isolated Pd atoms in a heterolytic manner forming O−H bond, which may account for the high selectivity.

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