• Article dans une revue

In situ observation of atomic redistribution in alloying gold-silver nanorods

Jessi E S van Der Hoeven, Tom a J Welling, Tiago a G da Silva, Jeroen E van den Reijen, Camille La Fontaine, Xavier Carrier, Catherine Louis, Alfons van Blaaderen, Petra E de Jongh

The catalytic performance and optical properties of bimetallic nanoparticles critically depend on the atomic distribution of the two metals in the nanoparticles. However, at elevated temperatures, during light induced heating or during catalysis atomic redistribution can occur. Measuring such metal…

ACS Nano, 2018, 12 (8), pp.8467-8476. ⟨10.1021/acsnano.8b03978⟩. ⟨hal-03157963⟩

• Article dans une revue

Controlled Formation of Native Defects in Ultrapure ZnO for the Assignment of Green Emissions to Oxygen Vacancies

Fredeŕic Averseng, Miao Zhang, Frederic Averseng, Jean-Marc Krafft, Patrizia Borghetti, Guylène Costentin, Slavica Stankic

Ultrapure ZnO nanopowders were synthesized via vapor-phase based methods under oxygen deficient conditions. The type and relative proportions of intrinsic point defects were studied by photoluminescence (PL) and EPR spectroscopies performed under strictly controlled conditions. Besides coupled PL/…

Journal of Physical Chemistry C, In press, 124 (23), pp.12696-12704. ⟨10.1021/acs.jpcc.0c01078⟩. ⟨hal-02896623⟩

• Article dans une revue

Superior Stability of Au/SiO 2 Compared to Au/TiO 2 Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Herrick Schaink, Ad van Der Eerden, Jan Willem de Rijk, Tiago A. G. Silva, Dipanjan Banerjee, Johannes D. Meeldijk, Krijn P. de Jong, Catherine Louis, Petra E. de Jongh

Supported gold nanoparticles are highly selective catalysts for a range of both liquid-phase and gas-phase hydrogenation reactions. However, little is known about their stability during gas-phase catalysis and the influence of the support thereon. We report on the activity, selectivity, and…

ACS Catalysis, 2017, 7 (9), pp.5594 - 5603. ⟨10.1021/acscatal.7b01424⟩. ⟨hal-01651990⟩

• Article dans une revue

Corrigendum: Silica-Supported Au-Ag Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Christophe Calers, Jean-Jacques Gallet, Fabrice Bournel, Krijn de Jong, Catherine Louis, Petra de Jongh

ChemCatChem, 2017, 9 (20), pp.4013-4013. ⟨10.1002/cctc.201701445⟩. ⟨hal-03884393⟩

• Article dans une revue

Fe3+-doped ordered mesoporous γ-Fe2O3/SiO2 microspheres as a highly efficient magnetically separable heterogeneous Fenton catalyst

Nassira Ferroudj, Patricia Beaunier, Anne Davidson, Sébastien Abramson

Here, several γ-Fe 2 O 3 /SiO 2 nanocomposite microspheres were synthesized, characterized and tested as magnetically separable heterogeneous catalysts in an advanced oxidation process. A strong relation between the structure and the activity of these materials was evidenced. Two parameters,…

Microporous and Mesoporous Materials, 2021, 326, pp.111373. ⟨10.1016/j.micromeso.2021.111373⟩. ⟨hal-03524378⟩

• Article dans une revue

Calibrated Co3O4 nanoparticles patterned in SBA-15 3 silicas: Accessibility and activity for CO oxidation

Irène Lopes, Anne Davidson, Cyril Thomas

The catalytic performances in CO oxidation of Co3 O4 nanoparticles patterned in the porosity of SBA-15 silicas are investigated. 10 Accessibility limitations of the reactants to the catalytic sites are clearly revealed,when the Co3O4 nanoparticles are embedded in the 11 SBA-15 pores.Despite these…

Catalysis Communications, 2007, 8, pp.2105-2109. ⟨hal-00181045⟩

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Corrosion and protection of high leaded tin bronze covered with patina in NaHCO3 + Na2SO4 solution simulating acid rain in urban environment

Kamal Rahmouni, Suzanne Joiret, Luc Robbiola, A. Srhiri, Hisasi Takenouti, Vincent Vivier

An experimental procedure for obtaining reproducible patina on high leaded tin bronze, B66 (Cu-8Sn-14Pb in wt %) has been devised, followed by its isolation from the substrate and examination of the electrochemical behaviour in a solution of 0.2 g.L - 1 Na 2 SO 4 + 0.2 g.L - 1 NaHCO 3 acidified to…

Bulgarian Chemical Communications, 2005, 37 (1), pp.26-34. ⟨hal-04189329⟩

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Role of solute-solvent hydrogen bonds on the ground state and the excited state proton transfer in 3-hydroxyflavone. A systematic spectrophotometry study

Simone Lazzaroni, Daniele Dondi, Alberto Mezzetti, Stefano Protti

Photochemical & Photobiological Sciences , 2018, 17 (7), pp.923-933. ⟨10.1039/C8PP00053K⟩. ⟨hal-04020487⟩

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Characterization and reactivity of VMgO catalysts prepared by wet impregnation and sol–gel methods

Samira Slyemi, Akila Barama, Juliette Blanchard, Hassiba Messaoudi, Sandra Casale, Christophe Calers

Chemical Engineering Communications, 2018, 205 (9), pp.1288-1298. ⟨10.1080/00986445.2018.1446424⟩. ⟨hal-02375309⟩

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Investigating the DMPO-formate spin trapping method for the study of paper iron gall ink corrosion

Alice Gimat, Valeryia Kasneryk, Anne-Laurence Dupont, Sabrina Paris, Frederic Averseng, Jeanine Fournier, Pascale Massiani, Véronique Rouchon

Paper degradation by iron gall ink is a challenging issue for the conservation of ancient manuscripts. It is usually attributed to both FeII catalyzed oxidation and acid catalyzed hydrolysis of cellulose, yet the dominant degradation pathway remains an open question. In this work, electron spin…

New Journal of Chemistry, 2016, 40 (11), pp.9098-9110. ⟨10.1039/c6nj01480a⟩. ⟨hal-01502192⟩