Palladium phosphide nanoparticles as highly selective catalysts for the selective hydrogenation of acetylene

Yanan Liu, Alan J. McCue, Chenglin Miao, Junting Feng, Dianqing Li, James A. Anderson

Research output: Contribution to journalArticle

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Abstract

Pd3P and PdP2 phases of ca. 4 nm were prepared on a TiO2 support by an impregnation route. Data from the hydrogenation of acetylene under both non-competitive and competitive conditions showed that PdP2/TiO2 exhibits enhanced selectivity and stability relative to Pd3P. Furthermore, the selectivity produced over PdP2 (84% ethylene selectivity @ 100% acetylene conversion) compares favorably with recently reported materials. XPS and CO-IR measurements reveal that the incorporation of P helps to break up contiguous Pd sites. This in turn is thought to affect the adsorption and desorption of reactants/products and thus improves selectivity. This work reveals that the incorporation of P into Pd materials could be regarded as a promising approach to develop new and improved Pd-based catalyst by creating a means to control the nature of the active sites.
Original languageEnglish
Pages (from-to)406-414
Number of pages9
JournalJournal of Catalysis
Volume364
Early online date23 Jun 2018
DOIs
Publication statusPublished - Aug 2018

Fingerprint

Acetylene
phosphides
Palladium
acetylene
Hydrogenation
hydrogenation
palladium
selectivity
Nanoparticles
catalysts
nanoparticles
Catalysts
Carbon Monoxide
Impregnation
Desorption
Ethylene
X ray photoelectron spectroscopy
Adsorption
ethylene
desorption

Keywords

  • palladium phosphide
  • selective hydrogenation
  • alkyne
  • acetylene
  • ethylene
  • site-isolation

Cite this

Palladium phosphide nanoparticles as highly selective catalysts for the selective hydrogenation of acetylene. / Liu, Yanan; McCue, Alan J.; Miao, Chenglin; Feng, Junting; Li, Dianqing; Anderson, James A.

In: Journal of Catalysis, Vol. 364, 08.2018, p. 406-414.

Research output: Contribution to journalArticle

Liu, Yanan ; McCue, Alan J. ; Miao, Chenglin ; Feng, Junting ; Li, Dianqing ; Anderson, James A. / Palladium phosphide nanoparticles as highly selective catalysts for the selective hydrogenation of acetylene. In: Journal of Catalysis. 2018 ; Vol. 364. pp. 406-414.
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abstract = "Pd3P and PdP2 phases of ca. 4 nm were prepared on a TiO2 support by an impregnation route. Data from the hydrogenation of acetylene under both non-competitive and competitive conditions showed that PdP2/TiO2 exhibits enhanced selectivity and stability relative to Pd3P. Furthermore, the selectivity produced over PdP2 (84{\%} ethylene selectivity @ 100{\%} acetylene conversion) compares favorably with recently reported materials. XPS and CO-IR measurements reveal that the incorporation of P helps to break up contiguous Pd sites. This in turn is thought to affect the adsorption and desorption of reactants/products and thus improves selectivity. This work reveals that the incorporation of P into Pd materials could be regarded as a promising approach to develop new and improved Pd-based catalyst by creating a means to control the nature of the active sites.",
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AU - Liu, Yanan

AU - McCue, Alan J.

AU - Miao, Chenglin

AU - Feng, Junting

AU - Li, Dianqing

AU - Anderson, James A.

N1 - This work was supported by the National Key Research and Development Program of China (2016YFB0301601), National Natural Science Foundation of China.

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AB - Pd3P and PdP2 phases of ca. 4 nm were prepared on a TiO2 support by an impregnation route. Data from the hydrogenation of acetylene under both non-competitive and competitive conditions showed that PdP2/TiO2 exhibits enhanced selectivity and stability relative to Pd3P. Furthermore, the selectivity produced over PdP2 (84% ethylene selectivity @ 100% acetylene conversion) compares favorably with recently reported materials. XPS and CO-IR measurements reveal that the incorporation of P helps to break up contiguous Pd sites. This in turn is thought to affect the adsorption and desorption of reactants/products and thus improves selectivity. This work reveals that the incorporation of P into Pd materials could be regarded as a promising approach to develop new and improved Pd-based catalyst by creating a means to control the nature of the active sites.

KW - palladium phosphide

KW - selective hydrogenation

KW - alkyne

KW - acetylene

KW - ethylene

KW - site-isolation

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DO - 10.1016/j.jcat.2018.06.001

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