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Topics in Catalysis

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31-05-2017 | Original Paper

Atmospheric Discharge Plasma Enhanced Preparation of Pd/TiO₂ Catalysts for Acetylene Selective Hydrogenation

Authors: Zhanglong Guo, Qingsong Huang, Shizhong Luo, Wei Chu

Published in: Topics in Catalysis | Issue 12-14/2017

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Abstract

A series of Pd/TiO₂ catalysts were prepared by incipient wetness impregnation method followed by atmospheric discharge plasma treatment. In order to study the influences of plasma treatment on the catalysts, the samples were characterized by XRD, TPR, TPD, XPS and TEM technologies. It was found that the plasma treatment catalysts possessed a higher acetylene conversion and ethylene selectivity compared to those of the untreated sample. The enhanced performance of the plasma treated catalyst was mainly dependent on two main effects. On one hand, the treated catalyst possessed a higher metal Pd dispersion, which resulted in the easier activation of acetylene. On the other hand, the surface electron density of metal Pd on the treated catalyst got enhanced compared to that of untreated sample, because of the stronger interaction between TiO₂ support and metallic Pd, helping the more desorption of ethylene species from the surface of catalyst.

previous article Selective Hydrogenation of Acetylene Over Pd/Al2O3 Catalysts: Effect of Non-thermal RF Plasma Preparation Methodologies

next article Effective Catalytic Performance of Plasma-Enhanced W2N/AC as Catalysts for Acetylene Hydrochlorination

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Title: Atmospheric Discharge Plasma Enhanced Preparation of Pd/TiO2 Catalysts for Acetylene Selective Hydrogenation
Authors: Zhanglong Guo
Qingsong Huang
Shizhong Luo
Wei Chu
Publication date: 31-05-2017
Publisher: Springer US
Published in: Topics in Catalysis / Issue 12-14/2017
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI: https://doi.org/10.1007/s11244-017-0766-4

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