Peer-Reviewed Journal Details
Mandatory Fields
O'Mahony, L; Zemlyanov, D; Smith, ME; Hodnett, BK
2003
September
Applied Catalysis A-General
Crystallisation of VOHPO4 center dot 0.5H(2)O in the presence of a surfactant
Published
()
Optional Fields
crystallisation cetyltrimethylammonium bromide vanadium oxide surfactant phosphorous mesophase MESOSTRUCTURED VANADIUM-OXIDE MALEIC-ANHYDRIDE N-BUTANE SELECTIVE OXIDATION PHOSPHORUS-OXIDES CATALYSTS PHOSPHATE PHASES (VO)2H4P2O9
251
2
327
335
The formation of vanadyl hydrogen phosphate hemihydrate (VOHPO(4)(.)0.5H(2)O) by progressive attachment of phosphorous to a vanadium oxide lamellar phase in the presence of cetyltrimethylammonium bromide (CTAB) is described. Evidence from nuclear magnetic resonance (NMR), XPS, X-ray diffraction (XRD) and scanning electron microscopy (SEM) is presented for the initial formation of a vanadium oxide lamellar structure with no long-range order to which phosphate is then progressively attached. Phosphate attachment leads to lamellar collapse with the resultant formation of the hemihydrate phase, VOHPO(4)(.)0.5H(2)O. (C) 2003 Elsevier B.V. All rights reserved.
0926-860X
10.1016/S0926-860X(03)00362-4
Grant Details