过氧聚钨酸铵的制备及性质研究

Studies on the Preparation and Properties of Ammonium Peroxypolytungstates

本文利用粉状白钨酸的反应活性,在室温下制备了W:O_2^(2-)为4:8、2:3和3:3等3个新的不同组成的过氧聚钨酸铵:(NH_3)_4W_4O_6(O_2)_8·5H_2O、(NH_4)_2W_2O_4(O_2)_3·3H_2O和(NH_4)_2W_3O_7(O_2)_3·6H_2O,并用IR、UV和XRD对过氧化物的性质进行了表征,研究了热分解最终产物WO_3的结构和电化学性质.

: Three new ammonium peroxypolytungstates (NH4)4W4O6(O2)8·5H2O, (NH4)2W2O4(O2)3·3H2O and (NH4)2W3O7(O2)3·6H2O have been prepared by the method of dropping ammonia liquor into a30% H2O2 solution dissolving white powdery tungstic oxide hydrate at room temperature, adjusting varouspH values. The three peroxypelytungstates have been characterized by IR spectra. UV absorption apectra,X-ray diffraction. Structure and electrochemical property of oxide derived from ammonium peroxypolytungstateshave been studied.