Chemistry-heated diffused permeation was used to treat POMs. ICP, IR, TG-DTA, XPS were used to characterize K_(10)H_3[Dy(SiW_4Mo_7O_(39))_2] and the sample. The result show that Sm and Gd can be permeated into the bod...Chemistry-heated diffused permeation was used to treat POMs. ICP, IR, TG-DTA, XPS were used to characterize K_(10)H_3[Dy(SiW_4Mo_7O_(39))_2] and the sample. The result show that Sm and Gd can be permeated into the body of this sample, chemical bonds forming between Sm and other components and the conductivity of K_(10)H_3[Dy(SiW_4Mo_7O_(39))_2] improves by 0 9356×10~4 times.展开更多
Rare earth co permeation of K 6HCoGeW 11 O 40 was reported. The co permeation temperature was decided by TG DTA and the ICP results of permeated sample indicate that La and Ce have permeated into the body...Rare earth co permeation of K 6HCoGeW 11 O 40 was reported. The co permeation temperature was decided by TG DTA and the ICP results of permeated sample indicate that La and Ce have permeated into the body of this compound. The results of XPS imply that chemical bonds exist between La, Ce and other components of this sample. The XRD patterns show great difference between K 6HCoGeW 11 O 40 and permeated sample. Such result gives evidence that the structure of K 6HCoGeW 11 O 40 is destroyed and new compounds perhaps formed. Four probe method and AC impedance spectra were used to measure the conductivities of K 6HCoGeW 11 O 40 and permeated complex. The conductivity of complex, at room temperature, improves 2.95×10 3 times after being permeated. Analyses of AC impedance spectra of permeated compound at different temperatures show that current carrier has changed.展开更多
文摘Chemistry-heated diffused permeation was used to treat POMs. ICP, IR, TG-DTA, XPS were used to characterize K_(10)H_3[Dy(SiW_4Mo_7O_(39))_2] and the sample. The result show that Sm and Gd can be permeated into the body of this sample, chemical bonds forming between Sm and other components and the conductivity of K_(10)H_3[Dy(SiW_4Mo_7O_(39))_2] improves by 0 9356×10~4 times.
文摘Rare earth co permeation of K 6HCoGeW 11 O 40 was reported. The co permeation temperature was decided by TG DTA and the ICP results of permeated sample indicate that La and Ce have permeated into the body of this compound. The results of XPS imply that chemical bonds exist between La, Ce and other components of this sample. The XRD patterns show great difference between K 6HCoGeW 11 O 40 and permeated sample. Such result gives evidence that the structure of K 6HCoGeW 11 O 40 is destroyed and new compounds perhaps formed. Four probe method and AC impedance spectra were used to measure the conductivities of K 6HCoGeW 11 O 40 and permeated complex. The conductivity of complex, at room temperature, improves 2.95×10 3 times after being permeated. Analyses of AC impedance spectra of permeated compound at different temperatures show that current carrier has changed.
