Keggin POM microtubes: a coincident product of crystal growth and species transformation.
Microtubes of alpha-K4SiW12O40 with the length around 1 cm and inner diameter and wall thickness in the ranges of 7-55 mum and 3-15 mum, respectively, were copiously fabricated by a one-step, template-free aqueous synthesis. The formation mechanism is discussed. The discovered tubular structure of the polyoxometalate is believed to be promising for use in templates, as a precursor of tungsten oxide ceramic microtubes, and for other uses associated with tubular structures.
Xin, Z; Peng, J; Wang, T; Xue, B; Kong, Y; Li, L; Wang, E
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