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Catherine Louis



Preparation of supported metal catalysts


Research Interests

  • Preparation of mono and bimetallic catalysts supported on oxides by deposition-reduction or reduction-deposition method

Study of the physicochemical mechanisms involved in the preparation and of the parameters that govern the formation of metallic nanoparticles and the composition when they are bimetallic.
Preparation of mono and bimetallic gold catalysts

  • Modification of the catalytic properties of metal catalysts:

By adding a second oxide to modify the properties of the support
By addition of a second metal and the preparation of bimetallic catalysts
Search for non-noble bimetallic catalysts to replace noble metals for gas phase reactions of selective hydrogenation, such as the selective hydrogenation of dienes

  • Evolution of the morphology and structure of mono and bimetallic nanoparticles under gases during catalytic reaction

Main techniques used:
Electron microscopy, infrared and UV-Visible spectroscopies, X-ray absorption spectroscopy (XANES, EXAFS) and X-ray photoelectron spectroscopy (XPS).

Contact Informations

Mail(s) : catherine.louis@upmc.fr

Function and attachment

  • CNRS Emeritus Research Director


  • Doctor es Science in Chemical Sciences of the University Pierre and Marie Curie (UPMC), Paris (1985)
  • Post-doctoral fellow from 1986 to 1988 in Berkeley (USA)
  • CNRS junior researcher at LRS in 1981
  • CNRS research director at LRS in 1995 and emeritus research director in 2021
  • Director of the CNRS network on gold nanoparticles (Or-Nano) (2006-2013)



  • Catalysis by Gold, G.C. Bond, C.Louis, D.Thompson, Imperial College Press, 2006, 366 pages
  • Gold Nanoparticles for Physics, Chemistry and Biology, C. Louis, O. Pluchery (Eds), Imperial College Press, 2012, 395 pages – 2nd edition: World Scientific, 2017, 644 pages ISBN 978-1-78634-124-2



Book chapters and reviews

  • Deposition-precipitation synthesis of supported metal catalysts, C. Louis,

in "Catalyst Preparation: Science and Engineering", J.R. Regalbuto (ed.), Taylor & Francis/CRC Press, (2006) p. 319-339

  • Gold nanoparticles: Recent advances in CO oxidation, C. Louis,

in "Nanoparticles and Catalysis", D. Astruc (Ed.), Wiley-VCH, (2007) p. 475-503

  • Gold Catalysts, C. Louis,

in "Preparation of Heterogeneous Catalysts", K de Jong (Ed.), Wiley-VCH, (2009) p. 369-391

  • Gold Nanoparticles in the Past: Their First Uses before the nanotechnology era, C. Louis,

in "Gold Nanoparticles for Physics, Chemistry and Biology", C. Louis and O. Pluchery (Eds), Imperial College Press, (2012) p.1-26, 2nd edition, World Scientific, (2017) p.1-28

  • Chemical preparation of gold nanoparticles on surfaces, C. Louis,

in "Gold Nanoparticles for Physics, Chemistry and Biology", C. Louis and O. Pluchery (Eds), Imperial College Press, (2012) p.139-169, 2nd edition, World Scientific, (2017) p.229-283

  • Synthesis and Physicochemical properties of gold-based catalysts, C.Louis,

in “Environmental catalysis over gold-based materials", G. Avgouropoulos and  T. Tabakova (Eds), RSC Catalysis Series, (2013) 21-62

  • Preparation of supported gold catalysts: Deposition-Reduction, C. Louis,

in "Gold catalysis : Preparation, Characterisation and Applications", L. Prati and A. Villa (Eds), CRC Press, Taylor & Francis Group, (2015) p. 1-26

  • Chemical Preparation of Supported Bimetallic Catalysts. Gold-Based Bimetallic, a Case Study, C. Louis, Catalysts, 6 (2016) 110 (27 pages) (doi:10.3390/catal6080110)
  • Selective hydrogenation of polyunsaturated hydrocarbons and unsaturated aldehydes over bimetallic catalysts, C. Louis, L. Delannoy, Adv. Catal., 64 (2019) 1-88  (doi 10.1016/bs.acat.2019.08.002)


Recent Most Significant Articles

  • Revealing Size Dependent Structural Transitions in Supported Gold Nanoparticles in Hydrogen at Atmospheric Pressure, A. Nassereddine, Q. Wang, D. Loffreda, C. Ricolleau, D. Alloyeau, C. Louis, L.  Delannoy, J. Nelayah, H. Guesmi, Small (2021) 2104571 (doi: 10.1002/smll.202104571)
  • Synthesis of Ni-core-Au-shell Catalytic Nanoparticles on TiO2 by Galvanic Replacement Reaction, J. Reboul, Z.Y.  Li, J. Yuan, K. Nakatsuka, M. Saito, K. Mori, H. Yamashita, Y. Xia, C.Louis, Nanoscale Adv., 3 (2021) 823-835 (doi: 10.1039/d0na00617c)
  • Au-Ru/TiO2 prepared by deposition-precipitation with urea: Relevant synthesis parameters to obtain bimetallic particles, L.A. Calzada, C. Louis, Chang Wan Han, Volkan Ortalan, Rodolfo Zanella, Appl. Catal. B, 264 (2020) 118503 (doi.org/10.1007/s11164-019-04007-8)
  • Reshaping Dynamics of Gold Nanoparticles under H2 and O2 at Atmospheric Pressure, A. Chmielewski,J. Meng,B. Zu, Y. Gao, H. Guesmi, H. Prunier,D. Alloyeau,  G. Wang, L. Delannoy,C. Louis,P. Afanasiev, C. Ricolleau, J. Nelayah, ACS Nano, 13 (2019) 2024−2033  (doi: 10.1021/acsnano.8b08530)
  • Novel Non-Noble Bimetallic Cu-Zn/TiO2 Catalysts for Selective Hydrogenation of Butadiene, Z. Wang, G. Wang, C. Louis, L. Delannoy, J. Catal., 347 (2017) 185-196 (doi: 10.1016/j.jcat.2017.01.010)
  • Selective Hydrogenation of 1,3-butadiene over Bimetallic Au-Ni/TiO2 Catalysts Prepared by Deposition-Precipitation with Urea, A. Aguilar-Tapia, L. Delannoy, C. Louis, C.W. Han, V. Ortalan, R. Zanella, J. Catal., 344 (2016) 515-523 (doi: 10.1016/j.jcat.2016.10.025)
  •  Synergetic effect in Ir-Au/TiO2 catalysts in the total oxidation of propene: Influence of the activation conditions, A. Aguilar-Tapia, R. Zanella, C. Calers, C. Louis, L. Delannoy, Phys. Chem. Chem. Phys., 17 (2015) 28022-28032 (doi:10.1039/C5CP00590F)
  • Synergetic Effect in Bimetallic Au-Ag/TiO2 Catalysts for CO Oxidation: Insights from In Situ Characterization, A. Sandoval, L. Delannoy, C. Méthivier, C. Louis, R. Zanella, Appl. Catal. A, 504 (2015) 287-294 (doi: 10.1016/j.apcata.2015.01.022)
  • Selective hydrogenation of butadiene over TiO2 supported copper, gold and gold-copper catalysts prepared by deposition precipitation, L. Delannoy, C. Méthivier, C. Louis, G. Thrimurthulu, P. S. Reddy, B. M. Reddy, J. Nelayah, C. Ricolleau, PCCP (2014) 26514-26527 (doi: 10.1039/c4cp02141j)
  • Evidence of Pd segregation and stabilization at edges of AuPd nono-clusters in presence of CO: a combined DFT and DRIFT study, B. Zhu, G. Thrimurthulu, L. Delannoy, C. Louis, C. Mottet, J. Creuze, B. Legrand, H. Guesmi-Emery, J. Catal., 308 (2013) 272-281 (doi : 10.1016/j.jcat.2013.08.022)
  • Surface Segregation of Pd under CO oxidation reaction in AuPd nanoalloys supported on TiO2 in situ observed by ETEM and DRIFTS, S. Giorgio, J.G. Mattei, C.R. Henry, N. El Kolli, L. Delannoy, C. Louis, ChemCatChem, 5 (2013) 2707-2716 (doi: 10.1002/cctc.201200618)
  • Bimetallic Au-Pd Catalysts for Selective Hydrogenation of Butadiene:  Influence of the Preparation Method on Catalytic Properties, N. El Kolli, L. Delannoy, C. Louis, J. Catal. 297 (2013) 79–92 (doi : 10.1016/j.jcat.2012.09.022)



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