Matches in SemOpenAlex for { <https://semopenalex.org/work/W2238004877> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2238004877 abstract "Abundance within andosols of highly reactive aluminosilicate nanoparticles makes of these an important factor affecting soil dynamics (carbon sequestration1, trapping pollutants2 ...). Gaining knowledge of the structural characteristics of such nanoparticles is of fundamental importance to understand their interactions with the different soil compartments. Aluminosilicate nanoparticles can adopt two main structures. Imogolites (Al2SiO3(OH)4), natural aluminosilicate nanotubes that have been well characterized since their discovery in 19723; And allophanes, aluminosilicates with identical chemical composition but with a different structure. allophanes have been described as hollow nanospheres with a diameter ranging from 3 to 5 nm and their structure depends on the Al/Si ratio: (i) Al-rich allophanes (Al/Si=2, Imogolite type local structure); (ii) Si-rich allophanes (Al/Si<2). Nonetheless, the only evidence for allophanes spherical nature up to date has solely come from TEM observations. The actual morphological structure of allophanes still needs to be further investigated. In the present work, Aluminosilicate samples obtained from soils collected in La Reunion (a French volcanic island in the Indian Ocean region) are studied using an array of diverse characterization techniques. While XRD and FTIR results are consistent with the characteristic allophane fingerprint, NMR analysis reveals an imogolite-type local environment of silicon and aluminium, pointing to a type i Al-rich structure. However, no spherical objects could be observed using TEM. In view of such observations, we propose that the structure of these type i Allophane is not consistent with that of a hollow sphere geometry. To obtain further insight into this matter, we synthesised aluminosilicate nanoparticles (both allophane and imogolite), and thoroughly characterized them using a wide variety of high specificity techniques ranging from the macro crystalline structure (TEM, XRD) to the atomic scale (XAFS, PDF). Our findings point to a structure consistent with that of a short imogolite nanotube type structure, rather than a hollow sphere. (Resume d'auteur)" @default.
- W2238004877 created "2016-06-24" @default.
- W2238004877 creator A5026022698 @default.
- W2238004877 creator A5031080819 @default.
- W2238004877 creator A5031481693 @default.
- W2238004877 creator A5038939633 @default.
- W2238004877 creator A5055227491 @default.
- W2238004877 creator A5072108681 @default.
- W2238004877 creator A5089884938 @default.
- W2238004877 date "2008-01-01" @default.
- W2238004877 modified "2023-09-23" @default.
- W2238004877 title "New findings on the structure of natural and synthetic aluminosilicates nanoparticles" @default.
- W2238004877 hasPublicationYear "2008" @default.
- W2238004877 type Work @default.
- W2238004877 sameAs 2238004877 @default.
- W2238004877 citedByCount "0" @default.
- W2238004877 crossrefType "journal-article" @default.
- W2238004877 hasAuthorship W2238004877A5026022698 @default.
- W2238004877 hasAuthorship W2238004877A5031080819 @default.
- W2238004877 hasAuthorship W2238004877A5031481693 @default.
- W2238004877 hasAuthorship W2238004877A5038939633 @default.
- W2238004877 hasAuthorship W2238004877A5055227491 @default.
- W2238004877 hasAuthorship W2238004877A5072108681 @default.
- W2238004877 hasAuthorship W2238004877A5089884938 @default.
- W2238004877 hasConcept C127413603 @default.
- W2238004877 hasConcept C155672457 @default.
- W2238004877 hasConcept C159985019 @default.
- W2238004877 hasConcept C161790260 @default.
- W2238004877 hasConcept C171250308 @default.
- W2238004877 hasConcept C178790620 @default.
- W2238004877 hasConcept C185592680 @default.
- W2238004877 hasConcept C192562407 @default.
- W2238004877 hasConcept C199289684 @default.
- W2238004877 hasConcept C2778973568 @default.
- W2238004877 hasConcept C2780367224 @default.
- W2238004877 hasConcept C2780841128 @default.
- W2238004877 hasConcept C40212044 @default.
- W2238004877 hasConcept C42360764 @default.
- W2238004877 hasConcept C513153333 @default.
- W2238004877 hasConcept C85704489 @default.
- W2238004877 hasConceptScore W2238004877C127413603 @default.
- W2238004877 hasConceptScore W2238004877C155672457 @default.
- W2238004877 hasConceptScore W2238004877C159985019 @default.
- W2238004877 hasConceptScore W2238004877C161790260 @default.
- W2238004877 hasConceptScore W2238004877C171250308 @default.
- W2238004877 hasConceptScore W2238004877C178790620 @default.
- W2238004877 hasConceptScore W2238004877C185592680 @default.
- W2238004877 hasConceptScore W2238004877C192562407 @default.
- W2238004877 hasConceptScore W2238004877C199289684 @default.
- W2238004877 hasConceptScore W2238004877C2778973568 @default.
- W2238004877 hasConceptScore W2238004877C2780367224 @default.
- W2238004877 hasConceptScore W2238004877C2780841128 @default.
- W2238004877 hasConceptScore W2238004877C40212044 @default.
- W2238004877 hasConceptScore W2238004877C42360764 @default.
- W2238004877 hasConceptScore W2238004877C513153333 @default.
- W2238004877 hasConceptScore W2238004877C85704489 @default.
- W2238004877 hasLocation W22380048771 @default.
- W2238004877 hasOpenAccess W2238004877 @default.
- W2238004877 hasPrimaryLocation W22380048771 @default.
- W2238004877 hasRelatedWork W1978118393 @default.
- W2238004877 hasRelatedWork W2015796670 @default.
- W2238004877 hasRelatedWork W2071069199 @default.
- W2238004877 hasRelatedWork W2086177606 @default.
- W2238004877 hasRelatedWork W2113376458 @default.
- W2238004877 hasRelatedWork W2461958427 @default.
- W2238004877 hasRelatedWork W2543123048 @default.
- W2238004877 hasRelatedWork W2593022301 @default.
- W2238004877 hasRelatedWork W2594672085 @default.
- W2238004877 hasRelatedWork W3003892133 @default.
- W2238004877 hasRelatedWork W3109146121 @default.
- W2238004877 hasRelatedWork W1635154378 @default.
- W2238004877 isParatext "false" @default.
- W2238004877 isRetracted "false" @default.
- W2238004877 magId "2238004877" @default.
- W2238004877 workType "article" @default.