T-Aluminium phosphate(AIPO4) was usually synthesized by water-thermal method with 20 day 950℃. The experimental results indicate that AIPO4 can be prepared by solid-state syntheses in existed different templates at l...T-Aluminium phosphate(AIPO4) was usually synthesized by water-thermal method with 20 day 950℃. The experimental results indicate that AIPO4 can be prepared by solid-state syntheses in existed different templates at low temperature (150℃ ) and in short time (2 hours), respectively, and they were characterized by chemical analysis, ICP, IR, XRD.展开更多
The experimental results indicate that aluminum phosphate(AlPO 4) can be prepared from aluminum chloride and ammonium dihydric phosphate at 180 ℃ and 2 h by solid-state synthesis in the presence of organic ammonium a...The experimental results indicate that aluminum phosphate(AlPO 4) can be prepared from aluminum chloride and ammonium dihydric phosphate at 180 ℃ and 2 h by solid-state synthesis in the presence of organic ammonium as template. The compositions and the structures of the AlPO 4 and related compounds were characterized by chemical analysis, ICPS, FT-IR and XRD. The absorption property of AlPO 4 to Cr(Ⅵ) ion were also examined.展开更多
The irreducible tensor method was used to calculate the matrix elements of spin exchanging Hamiltonian for s1=s2=s3=1/2 trinuclear spin system, and the corresponding energy eigenvalues were obtained. A magnetic suscep...The irreducible tensor method was used to calculate the matrix elements of spin exchanging Hamiltonian for s1=s2=s3=1/2 trinuclear spin system, and the corresponding energy eigenvalues were obtained. A magnetic susceptibility formula for this trinuclear spin coupling system was deduced from Heisenberg Dirac van Vleck equation, and extended to special cases, such as equilateral, isosceles triangle or linear trinuclear spin coupling systems.展开更多
文摘T-Aluminium phosphate(AIPO4) was usually synthesized by water-thermal method with 20 day 950℃. The experimental results indicate that AIPO4 can be prepared by solid-state syntheses in existed different templates at low temperature (150℃ ) and in short time (2 hours), respectively, and they were characterized by chemical analysis, ICP, IR, XRD.
文摘The experimental results indicate that aluminum phosphate(AlPO 4) can be prepared from aluminum chloride and ammonium dihydric phosphate at 180 ℃ and 2 h by solid-state synthesis in the presence of organic ammonium as template. The compositions and the structures of the AlPO 4 and related compounds were characterized by chemical analysis, ICPS, FT-IR and XRD. The absorption property of AlPO 4 to Cr(Ⅵ) ion were also examined.
文摘The irreducible tensor method was used to calculate the matrix elements of spin exchanging Hamiltonian for s1=s2=s3=1/2 trinuclear spin system, and the corresponding energy eigenvalues were obtained. A magnetic susceptibility formula for this trinuclear spin coupling system was deduced from Heisenberg Dirac van Vleck equation, and extended to special cases, such as equilateral, isosceles triangle or linear trinuclear spin coupling systems.
