La formation de Guillaume est indiquée sur son profil. Performed the experiments: TR GL HD ND TF. Consultez le profil de Guillaume ROCHARD sur LinkedIn, le plus grand réseau professionnel mondial. The authors have declared that no competing interests exist.Ĭonceived and designed the experiments: TR GL PL. Guillaume Rochard posted images on LinkedIn. Irstea, LISC, Complex Systems Engineering Laboratory, 9 avenue Blaise Pascal–CS 20085, 63178, Aubière, France Irstea, EABX, Aquatic Ecosystems and Global Changes research unit, 50 avenue de Verdun, Gazinet Cestas, F-33612, Cestas, France Au/Co promoted CeO 2 catalysts for formaldehyde total oxidation at ambient temperature: role of oxygen vacancies. in 1649 and current vigneron Guillaume Reynouard took over the estate in 1995. The latter exhibit greater redox ability of the manganese species and a higher density of active surface oxygen species with respect to the perovskite precursor.* E-mail: EABX, Aquatic Ecosystems and Global Changes research unit, 50 avenue de Verdun, Gazinet Cestas, F-33612, Cestas, France Guillaume Rochard, Jean-Marc Giraudon, Leonarda Francesca Liotta, Valeria La Parola, Jean-François Lamonier. In 1998 Bruno Rochard took over the reigns from his parents at Domaine de. In the light of the experimental results, such performances can be related to the formation of a meso/macro-porous structure conferring high surface area and good accessibility of the active surface sites. Superior catalytic properties of ε-MnO 2 were observed toward HCHO oxidation as well as a good catalytic stability with respect to other macro-mesoporous counterparts. In our case, this soft process allowed us to obtain the ε-MnO 2 phase with hierarchical porosity without any template. Specifically, extending the acid etching duration promotes the surface area and pore volume of the materials while developing interconnected macro-mesoporous networks. Strength and oxidizing properties of the acid used as modifying agent strongly impact textural and redox surface properties of the resulting materials. This transformation proceeds through a soft-chemical process involving the dissolution of trivalent lanthanum and manganese from the perovskite structure and the dismutation of Mn 3+ cations into MnO 2 and Mn 2+ species. Guillaume served as Senior Vice President, Strategy, Partnerships and Mergers and Acquisitions and Group Director, Strategy, Partnerships and Mergers and Acquisitions for Naval Group. Guillaume Rochard joined Naval Group in 2015. The LaMnO 3 transformation was fully investigated using ICP, XRD, N 2 physisorption, TPR, TPD, SEM, TEM/EDS and XPS. Guillaume was Partner, Leader of Aerospace & Defense Sector at PwC, and Senior Manager at PwC. A simple template-free method, based on a mineral acid etching process using manganite perovskite (LaMnO 3) as precursor, was successfully developed to obtain a series of 3D meso/macro-porous materials. Guillaume Rochard, 49 ans, est diplômé de la Toulouse Business School et auditeur de la 59 e session nationale de l’Institut des hautes études de défense nationale (IHEDN).
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