• Article dans une revue

Transforming a Diamagnetic Ordered Mesoporous Silica Monolith into a Room Temperature Permanent Magnet through Multiscale Control of the Magnetic Properties

Virgile Trannoy, Laura Altenschmidt, Giulia Fornasieri, Amélie Bordage, Eric Rivière, Patricia Beaunier, Anne Bleuzen

ChemNanoMat, 2018, 4 (12), pp.1254-1261. ⟨10.1002/cnma.201800333⟩. ⟨hal-02353510⟩

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Bimetallic Au-Ag/TiO2 catalyst prepared by deposition-precipitation: High activity and stability in CO oxidation

A. Sandoval, A. Aguilar, C. Louis, Agnes Traverse, Rodolfo Zanella

Au-Ag bimetallic catalysts supported on TiO2 were prepared by sequential deposition-precipitation method, silver first and then gold. Au-Ag catalysts with different Au/Ag atomic ratios were synthesized. XANES and H2 TPR results show that gold is more easily reduced in bimetallic catalysts than in…

Journal of Catalysis, 2011, 281, pp.40-49. ⟨10.1016/j.cat.2011.04.003⟩. ⟨hal-00666778⟩

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In vitro synthesis of amorphous Mg-, Ca-, Sr- and Ba-carbonates: what do we learn about intracellular calcification by cyanobacteria?

Nithavong Cam, Thomas Georgelin, Maguy Jaber, Jean-François Lambert, Karim Benzerara

Some cyanobacteria, including Candidatus Gloeomargarita lithophora, which was isolated from Lake Alchichica (Mexico), can form intracellular carbonates. This contradicts the common paradigm that cyanobacterial calcification is always extracellular and suggests that calcification might be controlled…

Geochimica et Cosmochimica Acta, 2015, 161, pp.36-49. ⟨10.1016/j.gca.2015.04.003⟩. ⟨hal-01147190⟩

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Nanoporous Materials as New Engineered Catalysts for the Synthesis of Green Fuels

Ioana Fechete, Jacques Vedrine

This review summarizes the importance of nanoporous materials and their fascinating structural properties with respect to the catalytic and photocatalytic reduction of CO2 to methane, toward achieving a sustainable energy supply. The importance of catalysis as a bridge step for advanced energy…

Molecules, 2015, 20 (4), pp.5638-5666. ⟨10.3390/molecules20045638⟩. ⟨hal-01226491⟩

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Biomass-mediated ZSM-5 zeolite synthesis: when self-assembly allows to cross the Si / Al lower limit

Marcelo Maciel Pereira, Elisa Gomes, Alessandra Vieira Silva, Ana Belen Pinar, Marc-Georg Willinger, Sangaraju Shanmugam, Céline Chizallet, Guillaume Laugel, Pit Losch, Benoit Louis

A family of Al-rich ZSM-5 zeolites with Si / Al = 8 ± 0.5 was prepared according to a biomass-mediated supramolecular approach. A combination of advanced characterisation techniques and periodic density functional theory (DFT) calculations unraveled the purity and stability of unexpected Al…

Chemical Science, 2018, 9 (31), pp.6532 - 6539. ⟨10.1039/C8SC01675E⟩. ⟨hal-01882119v2⟩

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Copper nanoparticles supported on ZIF-8: comparison of Cu(II) reduction processes and application as benzyl alcohol oxidation catalysts

Yifan Zan, Ferdaous Ben Romdhane, Antoine Miche, Christophe Méthivier, Jean-Marc Krafft, Claude Jolivalt, Julien Reboul

We report the synthesis of a stable heterogeneous catalyst based on copper metal nanoparticles with oxidized surface supported on ZIF-8 for the oxidation of benzyl alcohol under mild temperature and using air as a sustainable oxygen source as well as for the implementation of the tandem “one-pot”…

ACS Applied Materials & Interfaces, 2023, 15 (32), pp.38716-38728. ⟨10.1021/acsami.3c08906⟩. ⟨hal-04192093⟩

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Selective Oxidation of Methane to Formaldehyde Catalyzed by Phosphates: Kinetic Description by Bond Strengths and Specific Total Acidities

Vasilij Gomonaj, Hervé Toulhoat

A kinetic model predicts the experimental activity and selectivity patterns obtained in oxidation of methane for divided unsupported orthophosphates (M II 3(PO4)2, M III PO4,) and pyrophosphates (M II 2P2O7, M IV P2O7) catalysts spanning extended ranges of M-O bond strength (calculated from first…

ACS Catalysis, 2018, 8 (9), pp.8263-8272. ⟨10.1021/acscatal.8b02629⟩. ⟨hal-01955648⟩

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Vibrating single probe and stationary bi-probes to measure local electrochemical impedance spectroscopy.

Hisasi Takenouti, G. Galicia, Michel Keddam, Vincent Vivier

The electrochemical impedance spectroscopy is widely used to investigate the electrode kinetics. This method is recognized as a powerful method to discriminate one reaction model to another and also to evaluate the reaction rate of elementary steps. However, when the electrode kinetics is markedly…

Bulgarian Chemical Communications, 2006, 38 (3), pp.165-175. ⟨hal-04172938⟩

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Nanostructured and spiky gold in biomolecule detection: improving binding efficiencies and enhancing optical signals

E. E. Bedford, S. Boujday, C.-M. Pradier, F. X. Gu

Nanostructured gold can improve the ability to detect biomolecules. Whether planar nanostructured surfaces or nanostructured particles are used, similar principles governing the enhancement apply. The two main benefits of nanostructured gold are improved geometry and enhancement of optical…

RSC Advances, 2015, 5 (21), pp.16461-16475. ⟨10.1039/c4ra13544j⟩. ⟨hal-01133167⟩

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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⟩