Room-temperature synthesis of a new stable (N2H4)WO3 compound: a route for hydrazine trapping
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Physical Science and Engineering (PSE) Division
Online Publication Date2019-03-07
Print Publication Date2019-04-01
Permanent link to this recordhttp://hdl.handle.net/10754/631754
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AbstractA new (N2H4)WO3 compound has been obtained by mixing WO3 and aqueous hydrazine solution at room temperature for 24 h. The reaction is catalyzed by the presence of lithium. X-ray, synchrotron and neutron diffraction techniques have shown that the material crystallizes in trigonal space group P3221 (No. 154). Chains of distorted WO4 tetrahedra extend along the a axis of the unit cell, linked by a corner-sharing oxygen atom: the N2H4 are in the voids between them. The thermal characterization shows that this new compound is stable up to 220°C, greatly beyond the boiling point of N2H4 (114°C); thus making it a promising candidate for catalysis or trapping applications.
CitationGiovannelli F, Mathieu C, Fritsch K, Adil K, Goutenoire F, et al. (2019) Room-temperature synthesis of a new stable (N2H4)WO3 compound: a route for hydrazine trapping. Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 75. Available: http://dx.doi.org/10.1107/s2052520619000064.
SponsorsWe acknowledge the use of the POWGEN instrument at the Spallation Neutron Source, a US Department of Energy, Office of Science User Facility operated by Oak Ridge National Laboratory. The use of beamline BM-11 at the Advanced Photon Source at Argonne National Laboratory is supported by the US Department of Energy, Office of Science,Office of Basic Energy Sciences (contract No. DE-AC02-06CH11357)