In Situ Total X-Ray Scattering Study of WO3 Nanoparticle Formation under Hydrothermal Conditions†
Dr. Dipankar Saha
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Kirsten M. Ø. Jensen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Christoffer Tyrsted
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorEspen D. Bøjesen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Aref Hasen Mamakhel
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Ann-Christin Dippel
Deutsches Elektronen-Synchrotron DESY, Photon Science, Notkestrasse 85, 22607 Hamburg (Germany)
Search for more papers by this authorDr. Mogens Christensen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorCorresponding Author
Prof. Dr. Bo B. Iversen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)Search for more papers by this authorDr. Dipankar Saha
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Kirsten M. Ø. Jensen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Christoffer Tyrsted
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorEspen D. Bøjesen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Aref Hasen Mamakhel
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorDr. Ann-Christin Dippel
Deutsches Elektronen-Synchrotron DESY, Photon Science, Notkestrasse 85, 22607 Hamburg (Germany)
Search for more papers by this authorDr. Mogens Christensen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Search for more papers by this authorCorresponding Author
Prof. Dr. Bo B. Iversen
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)Search for more papers by this authorThis work was supported by the Danish National Research Foundation (DNRF93) and the Danish Research Council for Nature and Universe (Danscatt). We thank DESY in Germany and MAX-lab in Sweden for synchrotron beamtime.
Graphical Abstract
Hard facts about solution species: Nanoparticles of WO3 crystallize from a complex precursor structure, as shown by in situ total scattering. The precursor structure exists in solution.
Abstract
Pair distribution function analysis of in situ total scattering data recorded during formation of WO3 nanocrystals under hydrothermal conditions reveal that a complex precursor structure exists in solution. The WO6 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 WO3.
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