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In Situ Total X‐Ray Scattering Study of WO 3 Nanoparticle Formation under Hydrothermal Conditions
Author(s) -
Saha Dipankar,
Jensen Kirsten M. Ø.,
Tyrsted Christoffer,
Bøjesen Espen D.,
Mamakhel Aref Hasen,
Dippel AnnChristin,
Christensen Mogens,
Iversen Bo B.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201311254
Subject(s) - hydrothermal circulation , nanocrystal , in situ , scattering , nanoparticle , cluster (spacecraft) , small angle x ray scattering , pair distribution function , polyhedron , hydrothermal synthesis , materials science , hexagonal crystal system , chemical engineering , crystallography , nanotechnology , chemistry , optics , physics , organic chemistry , geometry , mathematics , quantum mechanics , computer science , engineering , programming language
Pair distribution function analysis of in situ total scattering data recorded during formation of WO 3 nanocrystals under hydrothermal conditions reveal that a complex precursor structure exists in solution. The WO 6 polyhedra of the precursor cluster undergo reorientation before forming the nanocrystal. This reorientation is the critical element in the formation of different hexagonal polymporphs of WO 3 .