New insights into the crystal structure of UTE0.25Ge2=U4TGe8 (TE = Ru, Os) and ferromagnetic properties of the Os-bearing uranium germanide

Autor: Graziella Guy, Maria Szlawska, Carmelo Prestipino, Vincent Dorcet, Valérie Demange, Pierre Fertey, Dariusz Kaczorowski, Mathieu Pasturel, Adam Pikul

Publikováno v: Journal of Solid State Chemistry
Journal of Solid State Chemistry, 2023, 319, pp.123795. ⟨10.1016/j.jssc.2022.123795⟩

International audience; A single crystal of the compound previously described as "URu0.25Ge2" was studied by means of transmission electron microscopy and synchrotron X-ray diffraction (XRD) measurements. The experiments revealed that the deficient r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb248368c04e060da74532c4cefe298d
https://hal.science/hal-04011193

Aging and reactivity assessment of nanoscale zerovalent iron in groundwater systems

Autor: Junmin Deng, Tao Chen, Yara Arbid, Mathieu Pasturel, Sungjun Bae, Khalil Hanna

Publikováno v: Water Research
Water Research, 2022, pp.119472. ⟨10.1016/j.watres.2022.119472⟩

International audience; In this study, changes in the reactivity of nanoscale zerovalent iron (NZVI) in five different groundwater (GW) systems under anoxic and oxic conditions were examined over a wide range of aging time (0−60 d). p-nitrophenol (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62116ec30763969e0602c1b42813e7ab
https://univ-rennes.hal.science/hal-03897714

Influence of Stoichiometry and Aging at Operating Temperature on Thermoelectric Higher Manganese Silicides

Autor: Erik Elkaim, Quansheng Guo, Sylvain Le Tonquesse, Carmelo Prestipino, David Berthebaud, Mathieu Pasturel, Valérie Demange, Takao Mori, Loïc Joanny

Publikováno v: Chemistry of Materials
Chemistry of Materials, American Chemical Society, 2020, 32 (24), pp.10601-10609. ⟨10.1021/acs.chemmater.0c03714⟩
Chemistry of Materials, 2020, 32 (24), pp.10601-10609. ⟨10.1021/acs.chemmater.0c03714⟩

International audience; Thermoelectric higher manganese silicides, MnSix, were synthesized by magnesioreduction followed by spark plasma sintering with different nominal compositions (x = 1.65, 1.74, and 1.80) and various postsynthesis annealing dura

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d02aa7a1163aadb2ce857ee81c9fec74
https://doi.org/10.1021/acs.chemmater.0c03714

A Tunable Structural Family with Ultralow Thermal Conductivity: Copper-Deficient Cu

Autor: Krishnendu, Maji, Pierric, Lemoine, Adèle, Renaud, Bin, Zhang, Xiaoyuan, Zhou, Virginia, Carnevali, Christophe, Candolfi, Bernard, Raveau, Rabih, Al Rahal Al Orabi, Marco, Fornari, Paz, Vaqueiro, Mathieu, Pasturel, Carmelo, Prestipino, Emmanuel, Guilmeau

Publikováno v: Journal of the American Chemical Society. 144(4)

Understanding the mechanism that connects heat transport with crystal structures and order/disorder phenomena is crucial to develop materials with ultralow thermal conductivity (κ), for thermoelectric and thermal barrier applications, and requires t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::08a059cfa4e2cf645010ac7ab7b7072a
https://pubmed.ncbi.nlm.nih.gov/35040653

Alteration of birnessite reactivity in dynamic anoxic/oxic environments

Autor: Qinzhi Li, Dieter Schild, Mathieu Pasturel, Johannes Lützenkirchen, Khalil Hanna

Publikováno v: Journal of Hazardous Materials, 433, Art.Nr.: 128739
Journal of Hazardous Materials
Journal of Hazardous Materials, 2022, 433, pp.128739. ⟨10.1016/j.jhazmat.2022.128739⟩

International audience; Although the oxidative capacity of manganese oxides has been widely investigated, potential changes of the surface reactivity in dynamic anoxic/oxic environments have been often overlooked. In this study, we showed that the re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::582735fae3f77fe3baf6712ee0b138a9