A new type of strong metal-support interaction and the production of H2 through the transformation of water on Pt/CeO2(111) and Pt/CeO(x)/TiO2(110) catalysts

Journal of the American Chemical Society
Albert BruixFrancesc Illas

Abstract

The electronic properties of Pt nanoparticles deposited on CeO(2)(111) and CeO(x)/TiO(2)(110) model catalysts have been examined using valence photoemission experiments and density functional theory (DFT) calculations. The valence photoemission and DFT results point to a new type of "strong metal-support interaction" that produces large electronic perturbations for small Pt particles in contact with ceria and significantly enhances the ability of the admetal to dissociate the O-H bonds in water. When going from Pt(111) to Pt(8)/CeO(2)(111), the dissociation of water becomes a very exothermic process. The ceria-supported Pt(8) appears as a fluxional system that can change geometry and charge distribution to accommodate adsorbates better. In comparison with other water-gas shift (WGS) catalysts [Cu(111), Pt(111), Cu/CeO(2)(111), and Au/CeO(2)(111)], the Pt/CeO(2)(111) surface has the unique property that the admetal is able to dissociate water in an efficient way. Furthermore, for the codeposition of Pt and CeO(x) nanoparticles on TiO(2)(110), we have found a transfer of O from the ceria to Pt that opens new paths for the WGS process and makes the mixed-metal oxide an extremely active catalyst for the production of hydrogen.

References

Jan 1, 1993·Physical Review. B, Condensed Matter·G Kresse, J Hafner
Mar 6, 2004·Physical Review Letters·C ClayA Hodgson
Jan 10, 2008·Journal of the American Chemical Society·Amit A GokhaleManos Mavrikakis
Mar 12, 2009·Proceedings of the National Academy of Sciences of the United States of America·Joon B ParkJosé A Rodriguez
Jul 3, 2010·Chemical Communications : Chem Comm·Annapaola MiganiKonstantin M Neyman
Aug 21, 2010·Science·Jason A Farmer, Charles T Campbell
Oct 12, 2010·Science·Yanping ZhaiMaria Flytzani-Stephanopoulos
Oct 14, 2010·The Journal of Physical Chemistry. a·Ryan P SteeleJohn C Tully
Mar 23, 2011·Nature Materials·Georgi N VayssilovJörg Libuda
May 19, 2011·Physical Chemistry Chemical Physics : PCCP·Albert BruixFrancesc Illas

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Citations

Apr 8, 2014·Journal of Colloid and Interface Science·Chao LiuRongchao Jin
Dec 15, 2015·Nature Materials·Yaroslava LykhachJörg Libuda
Feb 26, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Erika VargaJános Kiss
Aug 1, 2016·The Journal of Chemical Physics·Manisha RayCaroline Chick Jarrold
Jul 15, 2016·Journal of the American Chemical Society·Matteo Farnesi CamelloneStefano Fabris
Aug 18, 2016·The Journal of Physical Chemistry Letters·M AhmadiB Roldan Cuenya
Oct 27, 2016·The Journal of Chemical Physics·Jared O KafaderCaroline Chick Jarrold
Sep 5, 2015·Physical Chemistry Chemical Physics : PCCP·Hu ZhouJianguo Wang
Feb 27, 2018·Chemical Society Reviews·Ritesh UppuluriThomas E Mallouk
Mar 1, 2018·Annual Review of Physical Chemistry·Elisa Jimenez-Izal, Anastassia N Alexandrova
Jul 14, 2016·Chemical Communications : Chem Comm·Yaxin ChenXingfu Tang
Jan 3, 2015·Physical Chemistry Chemical Physics : PCCP·Fazel ShojaeiFrancesc Illas
Jul 25, 2012·Nature Chemistry·Charles T Campbell
Jun 8, 2018·Annual Review of Chemical and Biomolecular Engineering·Frerich J Keil
Mar 7, 2014·Angewandte Chemie·Pingping HuXingfu Tang
Aug 17, 2018·Physical Chemistry Chemical Physics : PCCP·Jose J PlataJavier Fdez Sanz
Aug 23, 2018·Chemical Communications : Chem Comm·Yaxin ChenXingfu Tang
Feb 26, 2016·Nature Communications·Filip DvořákStefano Fabris
Mar 22, 2019·Chemical Communications : Chem Comm·Takane ImaokaKimihisa Yamamoto
Apr 17, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yan WangZongxian Yang
Jan 5, 2013·Physical Chemistry Chemical Physics : PCCP·Gianfranco Pacchioni
May 11, 2013·Physical Chemistry Chemical Physics : PCCP·José A RodriguezSanjaya D Senanayake
Sep 21, 2013·Chemical Communications : Chem Comm·Yu-ling QinXin-bo Zhang
May 3, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·J J PlataJavier Fernández Sanz
Mar 1, 2014·Physical Chemistry Chemical Physics : PCCP·Giuseppe PortaleAlessandro Longo

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