Zobrazeno 1 - 10 of 36 pro vyhledávání: '"Johann Ravaux"'
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Akademický článek
On the Operational Aspects of Measuring Nanoparticle Sizes
Autor: Jean-Marie Teulon, Christian Godon, Louis Chantalat, Christine Moriscot, Julien Cambedouzou, Michael Odorico, Johann Ravaux, Renaud Podor, Adèle Gerdil, Aurélie Habert, Nathalie Herlin-Boime, Shu-wen W. Chen, Jean-Luc Pellequer
Publikováno v: Nanomaterials, Vol 9, Iss 1, p 18 (2018)
Nanoparticles are defined as elementary particles with a size between 1 and 100 nm for at least 50% (in number). They can be made from natural materials, or manufactured. Due to their small sizes, novel toxicological issues are raised and thus determ
Externí odkaz: https://doaj.org/article/3ca672d4d3c44383aa7d7aeb14064352
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2
Working with the ESEM at high temperature
Autor: Nicolas Clavier, J. Lautru, Johann Ravaux, Renaud Podor, G.I. Nkou Bouala
Publikováno v: Materials Characterization
Materials Characterization, Elsevier, 2019, 151, pp.15-26. ⟨10.1016/j.matchar.2019.02.036⟩
Materials Characterization, 2019, 151, pp.15-26. ⟨10.1016/j.matchar.2019.02.036⟩
International audience; Working with the (Environmental) Scanning Electron Microscope (ESEM) at high temperature has been a long lasting goal for many researchers and remains to this day a difficult technique to operate efficiently. This article desc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c2a4e5f7b17c44ba953cdeb9728fc34
https://hal.archives-ouvertes.fr/hal-02064126/document
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3
Impact of the cationic homogeneity on Th0.5U0.5O2 densification and chemical durability
Autor: Adel Mesbah, Florent Tocino, Johann Ravaux, Nicolas Dacheux, Stéphanie Szenknect, Nicolas Clavier, Laurent Claparede
Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, Elsevier, 2019, 514, pp.368-379. ⟨10.1016/j.jnucmat.2018.12.009⟩
Journal of Nuclear Materials, 2019, 514, pp.368-379. ⟨10.1016/j.jnucmat.2018.12.009⟩
International audience; In order to study the effects of cationic homogeneity on the life cycle of Th1-xUxO2 ceramics, including sintering and reprocessing (dissolution) steps, five different ways of preparation were set up, going from the most homog
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88e5f3b8c6f1c2a8d6fbdf764d66fc5d
https://hal.archives-ouvertes.fr/hal-02045563
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4
On the Operational Aspects of Measuring Nanoparticle Sizes
Autor: Jean-Luc Pellequer, Christian Godon, Aurélie Habert, Louis Chantalat, Shu-wen W. Chen, Julien Cambedouzou, Johann Ravaux, Adèle Gerdil, Renaud Podor, Michael Odorico, Jean-Marie Teulon, Nathalie Herlin-Boime, Christine Moriscot
Publikováno v: Nanomaterials
Nanomaterials, MDPI, 2019, 9 (1), pp.18. ⟨10.3390/nano9010018⟩
Nanomaterials, 2019, 9 (1), pp.18. ⟨10.3390/nano9010018⟩
Volume 9
Issue 1
Nanomaterials, Vol 9, Iss 1, p 18 (2018)
International audience; Nanoparticles are defined as elementary particles with a size between 1 and 100 nm for at least 50% (in number). They can be made from natural materials, or manufactured. Due to their small sizes, novel toxicological issues ar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::107548b861110c3c989359e6ba887864
https://hal-cea.archives-ouvertes.fr/cea-01968894
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5
Monitoring the microstructural evolution of Nd2Zr2O7 pyrochlore during dissolution at 90 °C in 4 M HCl: Implications regarding the evaluation of the chemical durability
Autor: Sarah Finkeldei, Michael Odorico, Nicolas Dacheux, Johann Ravaux, Renaud Podor, Dirk Bosbach, J. Lautru, Stéphanie Szenknect, Felix Brandt
Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, Elsevier, 2017, 496, pp.97-108. ⟨10.1016/j.jnucmat.2017.09.029⟩
Journal of Nuclear Materials, 2017, 496, pp.97-108. ⟨10.1016/j.jnucmat.2017.09.029⟩
International audience; Understanding the dissolution mechanism at the solid/solution interface of Nd 2 Zr 2 O 7 pyrochlore is a critical step to evaluate its suitability to immobilize radionuclides. In this aim, the chemical durability of Nd 2 Zr 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::719a18582799adfd254bd6058817b5b8
https://hal.archives-ouvertes.fr/hal-02048799
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6
Development of an Integrated Thermocouple for the Accurate Sample Temperature Measurement During High Temperature Environmental Scanning Electron Microscopy (HT-ESEM) Experiments
Autor: Johann Ravaux, Renaud Podor, H.P. Brau, Damien Pailhon
Publikováno v: Microscopy and Microanalysis
Microscopy and Microanalysis, Cambridge University Press (CUP), 2015, 21 (02), pp.307-312. ⟨10.1017/S1431927615000252⟩
Microscopy and Microanalysis, 2015, 21 (02), pp.307-312. ⟨10.1017/S1431927615000252⟩
We have developed two integrated thermocouple (TC) crucible systems that allow precise measurement of sample temperature when using a furnace associated with an environmental scanning electron microscope (ESEM). Sample temperatures measured with thes
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8d847a5fed867da7301872eb608f4de
https://doi.org/10.1017/s1431927615000252
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7
Incorporation of uranium into a biomimetic apatite: physicochemical and biological aspects
Autor: Daniel Meyer, Claude Vidaud, Johann Ravaux, Olivier Averseng, Damien Bourgeois, Grégory Chatelain
Publikováno v: Journal of Biological Inorganic Chemistry
Journal of Biological Inorganic Chemistry, 2015, 20 (3), pp.497-507. ⟨10.1007/s00775-014-1231-5⟩
Journal of Biological Inorganic Chemistry, Springer Verlag, 2015, 20 (3), pp.497-507. ⟨10.1007/s00775-014-1231-5⟩
Bone is the main target organ for the storage of several toxic metals, including uranium. But the mode of action of uranium on bones remains poorly understood. To better assess the impact of uranium on bone cells, synthetic biomimetic apatites encomp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f91be6cfaf4ea790b484895671220dc
https://doi.org/10.1007/s00775-014-1231-5
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8
Pseudomorphical synthesis of glasses with hierarchical macro- and mesoporosity
Autor: Agnès Grandjean, Sabah El Mourabit, Alexei Tokarev, Johann Ravaux, Frédéric Goettmann, Marie Guillot
Publikováno v: Microporous and Mesoporous Materials
Microporous and Mesoporous Materials, Elsevier, 2014, 197, pp.83-91. ⟨10.1016/j.micromeso.2014.05.034⟩
Microporous and Mesoporous Materials, 2014, 197, pp.83-91. ⟨10.1016/j.micromeso.2014.05.034⟩
Herein a new synthetic approach, based on pseudomorphical transformation using sodium hydroxide to attack silica matrix during the dissolution/precipitation process, is proposed. Porous silica with the formation of a new mesoporosity inside of glass
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f9721c5007e7a316b9e17cceea943db
https://doi.org/10.1016/j.micromeso.2014.05.034
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9
Facile one-pot synthesis of copper hexacyanoferrate nanoparticle functionalised silica monoliths for the selective entrapment of 137Cs
Autor: Micheàl Moloney, Yves Barré, Alexey Tokarev, Jérémy Causse, Agnès Grandjean, Johann Ravaux
Publikováno v: Journal of Materials Chemistry A
Journal of Materials Chemistry A, Royal Society of Chemistry, 2014, 2 (25), pp.9461-9464. ⟨10.1039/C4TA01266F⟩
Journal of Materials Chemistry A, 2014, 2 (25), pp.9461-9464. ⟨10.1039/C4TA01266F⟩
In this study, hexacyanoferrate nanoparticle (NP) functionalised silica monoliths were used to selectively remove Cs+ from aqueous solutions which also contained large concentrations of Na+. Various NP loading levels were examined from 0.2 wt% up to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca7324ef7ebba0436007d37f680f6b82
https://doi.org/10.1039/c4ta01266f
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