Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Cédric Gommes"'
Autor:
Cédric Gommes, Joseph Tharakan
Publikováno v:
American Journal of Physics. 88:439-447
The Peclet number is used to characterize the relative importance of convection over diffusion in transport phenomena. We explore an alternative yet equivalent interpretation of that classical dimensionless number in terms of the observation scale. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6f994f918ed4b223fb16ee29c5bf3ba
https://doi.org/10.1119/10.0000957
https://doi.org/10.1119/10.0000957
Publikováno v:
J Appl Crystallogr
A family of stochastic models of disordered particles is proposed, obtained by clipping a Gaussian random field with a function that is space dependent. Depending on the shape of the clipping function, dense or hollow particles can be modelled. Gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de61af693dd6ae2458385de74c4b03e2
https://doi.org/10.1107/s1600576720005464
https://doi.org/10.1107/s1600576720005464
Publikováno v:
Journal of Applied Crystallography
Journal of Applied Crystallography, International Union of Crystallography, 2020, 53 (1), pp.127-132. ⟨10.1107/S1600576719016133⟩
Journal of Applied Crystallography, International Union of Crystallography, 2020, 53 (1), pp.127-132. ⟨10.1107/S1600576719016133⟩
International audience; The methods used to extract chord-length distributions from small-angle scattering data assume a structure consisting of spatially uncorrelated and disconnected convex regions. These restrictive conditions are seldom met for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9125870f084b2bbd1bffe90482236ab
https://doi.org/10.1107/s1600576719016133
https://doi.org/10.1107/s1600576719016133
Publikováno v:
Journal of Applied Crystallography. 52:507-519
In functional materials, nanoparticles are often dispersed in a porous support for the purpose of stabilizing them. This makes their characterization by small-angle scattering challenging because the signal comprises contributions from the nanopartic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb4a5ba458084a821d8491e9f6634733
https://doi.org/10.1107/s1600576719003935
https://doi.org/10.1107/s1600576719003935
Autor:
Frédéric Maillard, Laetitia Dubau, Isaac Martens, Tristan Asset, Pierre Bordet, Raphaël Chattot, Nathalie Job, Jakub Drnec, Jaysen Nelayah, Cédric Gommes
Publikováno v:
ACS Catalysis
ACS Catalysis, American Chemical Society, 2019, 9 (1), pp.160-167. ⟨10.1021/acscatal.8b02665⟩
ACS Catalysis, American Chemical Society, 2019, 9 (1), pp.160-167. ⟨10.1021/acscatal.8b02665⟩
Hollow bimetallic nanostructures are perfect systems to unravel the aging mechanisms of both Pt-based alloys and highly defective nanostructures used in proton-exchange membrane fuel cell (PEMFC) cathodes, since the mobility of their surface and bulk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed2c610304a5664ebd2fedc909c328e7
https://doi.org/10.1021/acscatal.8b02665
https://doi.org/10.1021/acscatal.8b02665
Autor:
Cédric Gommes
Publikováno v:
Microporous and Mesoporous Materials. 257:62-78
Small-angle scattering of either x-rays (SAXS) or neutrons (SANS) is one of the few experimental techniques that can be used to study the structure of porous materials on the entire range from 1 to 100 nm, which makes it particularly suited for mesop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::452acb53dbac5114d7186b21d8051d25
https://doi.org/10.1016/j.micromeso.2017.08.009
https://doi.org/10.1016/j.micromeso.2017.08.009
Autor:
Cédric Gommes
Publikováno v:
Nanoscale. 11(15)
Ostwald ripening is a major source of deactivation of functional nanomaterials. It consists in the growth of large nanoparticles at the expense of smaller ones via the formation and decomposition of intermediate chemical species. In most materials of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26b3b77ae726cea3d0d45a8fbe5d510
https://pubmed.ncbi.nlm.nih.gov/30938749
https://pubmed.ncbi.nlm.nih.gov/30938749
Autor:
Cédric Gommes
Publikováno v:
Journal of Applied Crystallography. 49:1162-1176
Although small-angle scattering is often discussed qualitatively in terms of material heterogeneity, when it comes to quantitative data analysis this notion becomes somehow hidden behind the concept of correlation function. In the present contributio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25029b34a346751e9c40fd420707210f
https://doi.org/10.1107/s1600576716007810
https://doi.org/10.1107/s1600576716007810
Autor:
Anthony P. Roberts, Cédric Gommes
Publikováno v:
Physical chemistry chemical physics : PCCP. 20(19)
Most mesoporous materials of practical interest are inherently disordered, which has a significant impact on the condensation and evaporation of vapours in their pores. Traditionally, the effect of disorder is theoretically analyzed in a perturbative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0e410472e2a24eafae283943649f64e
https://pubmed.ncbi.nlm.nih.gov/29737990
https://pubmed.ncbi.nlm.nih.gov/29737990
Autor:
Filip de Clippel, Gustaaf Van Tendeloo, Cédric Gommes, Pierre Jacobs, Ruyi Zhong, Xiaoxing Ke, Bart Goderis, Li Peng, Bert F. Sels
Publikováno v:
ChemCatChem
The synthesis of ordered mesoporous silica-carbon composites was explored by employing TEOS and sucrose as the silica and carbon precursor respectively, and the triblock copolymer F127 as a structure-directing agent via an evaporation-induced self-as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b42a732fb27abe7edf7c14aa26a27a40
https://doi.org/10.1002/cctc.201500728
https://doi.org/10.1002/cctc.201500728