Hydrogen Production by Glycerol Steam Reforming with Ru-based Catalysts: A Study on Sn Doping

Bimetallic Ru‐Sn heterogeneous catalysts for glycerol steam reforming (SR) to hydrogen‐rich mixtures are developed using organometallic (OM)CVD of commercial metal precursors as the preparation technique of choice. This methodology produces monometallic Ru nanoparticles (NPs) supported on Mg(Al)O mi...

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Published inChemical vapor deposition Vol. 16; no. 10-12; pp. 305 - 310
Main Authors Gallo, Alessandro, Pirovano, Claudio, Marelli, Marcello, Psaro, Rinaldo, Dal Santo, Vladimiro
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.12.2010
WILEY‐VCH Verlag
Subjects
Catalysis
Catalysts
Chemical vapor deposition
Doping
Glycerol
Glycerols
Hydrogen
Reflectance
Reforming
Ruthenium
Steam reforming
Tin
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Summary:Bimetallic Ru‐Sn heterogeneous catalysts for glycerol steam reforming (SR) to hydrogen‐rich mixtures are developed using organometallic (OM)CVD of commercial metal precursors as the preparation technique of choice. This methodology produces monometallic Ru nanoparticles (NPs) supported on Mg(Al)O mixed oxide with high activity and selectivity for glycerol SR. The effect of tin doping is studied on a set of catalysts with various Sn loadings. Materials produced are characterized by high resolution transmission electron microscopy (HRTEM) and by diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)‐quadrupole mass spectrometry (QMS) of adsorbed CO and tested in glycerol SR. At low load, tin is almost selectively deposited on Ru NP faces, and resulting Ru‐exposed sites show a higher specific activity than Ru exposed sites in monometallic catalysts. Monometallic Ru and bimetallic Ru‐Sn heterogeneous catalysts were prepared by CVD of Ru(TMHD)3 and Sn(n‐Bu)4 precursors on Mg(Al)O mixed oxide support. Ru/Mg(Al)O system was very efficient and durable in the hydrogen production by glycerol steam reforming. The effect of tin addiction was investigated and at low loadings it selectively decorates Ru faces sites leaving exposed the most active Ru sites.
Bibliography:Regione Lombardia
IDECAT Network of Excellence
European Community's Seventh Framework Programme
ark:/67375/WNG-03VQ3VSL-W
istex:478FB0FF2BE8F534E0C07585B309C44DFE14BA3B
Financial support from Regione Lombardia, through the project "ACCORDO QUADRO Regione Lombardia e CNR per l'attuazione di programmi di ricerca e sviluppo" is gratefully aknowledged. The financial support of IDECAT Network of Excellence and of the European Community's Seventh Framework Programme. The authors also thank the Italian Ministry of Education, University and Research for financial support through the Project "ItalNanoNet" (Rete Nazionale di Ricerca sulle Nanoscienze; prot. no. RBPR05JH2P). Mr. G. Pallocca from Assing S.p.A. (Monterotondo, Italy), and Dr. A. Orchowski from ZEISS-SMT (Oberkochen, Germany) are gratefully acknowledged for the assistance in the TEM measurements.
ArticleID:CVDE201006864
Financial support from Regione Lombardia, through the project “ACCORDO QUADRO Regione Lombardia e CNR per l'attuazione di programmi di ricerca e sviluppo” is gratefully aknowledged. The financial support of IDECAT Network of Excellence and of the European Community's Seventh Framework Programme. The authors also thank the Italian Ministry of Education, University and Research for financial support through the Project “ItalNanoNet” (Rete Nazionale di Ricerca sulle Nanoscienze; prot. no. RBPR05JH2P). Mr. G. Pallocca from Assing S.p.A. (Monterotondo, Italy), and Dr. A. Orchowski from ZEISS‐SMT (Oberkochen, Germany) are gratefully acknowledged for the assistance in the TEM measurements.
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ISSN:0948-1907
1521-3862
1521-3862
DOI:10.1002/cvde.201006864