Au on MgAl2O4 spinels: The effect of support surface properties in glycerol oxidation

Villa, Alberto; Gaiassi, Aureliano; Rossetti, Ilenia; Bianchi, Claudia; van Benthem, Klaus; Veith, Gabriel M; Prati, Laura

doi:10.1016/j.jcat.2010.07.022

Title: Au on MgAl2O4 spinels: The effect of support surface properties in glycerol oxidation

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Abstract

Here we investigated the properties of Au nanoparticles, prepared via three different techniques and supported on three different MgAl2O4 spinels. The surface composition and area of the spinel plays an important role in determining the selectivity of the catalyst in the selective oxidation of glycerol. it was found that aluminum rich surfaces enhance the C-C bond cleavage reaction for large gold particles which is opposite of what is normally observed for large clusters which typically show no C-C cleavage. We also report that similarly sized AuNPs on the different MgAl2O4 spinels with the same surface Al/Mg ratio, show a similar selectivity; however activity depends on surface area.

Authors:

Villa, Alberto ^[1]; Gaiassi, Aureliano ^[1]; Rossetti, Ilenia ^[1]; Bianchi, Claudia ^[1]; van Benthem, Klaus ^[2]; Veith, Gabriel M ^[2]; Prati, Laura ^[1]

Universita di Milano, Italy
ORNL

Publication Date:: Fri Jan 01 00:00:00 EST 2010

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 988724

DOE Contract Number:: DE-AC05-00OR22725

Resource Type:: Journal Article

Journal Name:: Journal of Catalysis

Additional Journal Information:: Journal Volume: 275; Journal Issue: 1; Journal ID: ISSN 0021-9517

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM OXIDES; MAGNESIUM OXIDES; CATALYST SUPPORTS; SURFACE PROPERTIES; GLYCEROL; GOLD; OXIDATION; SPINELS; SURFACE AREA; CATALYTIC EFFECTS; glycerol oxidation; gold catalysts

Citation Formats


                    Villa, Alberto, Gaiassi, Aureliano, Rossetti, Ilenia, Bianchi, Claudia, van Benthem, Klaus, Veith, Gabriel M, and Prati, Laura. Au on MgAl2O4 spinels: The effect of support surface properties in glycerol oxidation.  United States: N. p., 2010. 
        Web.  doi:10.1016/j.jcat.2010.07.022.

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                    Villa, Alberto, Gaiassi, Aureliano, Rossetti, Ilenia, Bianchi, Claudia, van Benthem, Klaus, Veith, Gabriel M, & Prati, Laura. Au on MgAl2O4 spinels: The effect of support surface properties in glycerol oxidation.  United States.  https://doi.org/10.1016/j.jcat.2010.07.022

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                    Villa, Alberto, Gaiassi, Aureliano, Rossetti, Ilenia, Bianchi, Claudia, van Benthem, Klaus, Veith, Gabriel M, and Prati, Laura. 2010.  
        "Au on MgAl2O4 spinels: The effect of support surface properties in glycerol oxidation".  United States.  https://doi.org/10.1016/j.jcat.2010.07.022.

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@article{osti_988724,

  title        = {Au on MgAl2O4 spinels: The effect of support surface properties in glycerol oxidation},

  author       = {Villa, Alberto and Gaiassi, Aureliano and Rossetti, Ilenia and Bianchi, Claudia and van Benthem, Klaus and Veith, Gabriel M and Prati, Laura},

  abstractNote = {Here we investigated the properties of Au nanoparticles, prepared via three different techniques and supported on three different MgAl2O4 spinels. The surface composition and area of the spinel plays an important role in determining the selectivity of the catalyst in the selective oxidation of glycerol. it was found that aluminum rich surfaces enhance the C-C bond cleavage reaction for large gold particles which is opposite of what is normally observed for large clusters which typically show no C-C cleavage. We also report that similarly sized AuNPs on the different MgAl2O4 spinels with the same surface Al/Mg ratio, show a similar selectivity; however activity depends on surface area.},

  doi          = {10.1016/j.jcat.2010.07.022},

  url          = {https://www.osti.gov/biblio/988724},
  journal      = {Journal of Catalysis},

  issn         = {0021-9517},

  number       = 1,

  volume       = 275,

  place        = {United States},

  year         = {Fri Jan 01 00:00:00 EST 2010},

  month        = {Fri Jan 01 00:00:00 EST 2010}

}

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