Electroreduction of Co(Ⅱ)to metallic cohalt in urea melt is irrevsible in one step.The transfer coeffi-cient of electrode reaction of Co(Ⅱ)+2e=Co(O)and the diffusion coefficient of Co(Ⅱ)were determined.The lanthanu...Electroreduction of Co(Ⅱ)to metallic cohalt in urea melt is irrevsible in one step.The transfer coeffi-cient of electrode reaction of Co(Ⅱ)+2e=Co(O)and the diffusion coefficient of Co(Ⅱ)were determined.The lanthanum can be inductively codeposited with cobalt. The contents of lanthanum in cobalt-lanthanum de-posts increase with the shift of electrode potential to the negative direction and the raise of La(Ⅲ)/Co(Ⅱ)mo-lar ratio in the melt. The cyclic voltammetry,open circuit potential-time curve after potentiostatic electrolysisand electron probe analyas were used.展开更多
Coordination polymer{[Co(BTIA)(H_(2)O)0.5]·1.5CH_(3)OH}n(Co-1)was synthesized from Co(NO_(3))_(2)·6H_(2)O and multidentate ligand 4,6-bis-(4H-1,2,4-triazol-1-yl)-isophthalic acid(H_(2)BTIA)under solvothermal...Coordination polymer{[Co(BTIA)(H_(2)O)0.5]·1.5CH_(3)OH}n(Co-1)was synthesized from Co(NO_(3))_(2)·6H_(2)O and multidentate ligand 4,6-bis-(4H-1,2,4-triazol-1-yl)-isophthalic acid(H_(2)BTIA)under solvothermal conditions.Crystal analysis found that Co-1 was a(4^(4)·6^(2))_(2)(4^(16)·6^(12))3D framework with one dimensional channels,which gives it good adsorption performance for greenhouse gas CO_(2) and anionic dyes CR^(2-) and TY^(-).In particular for the large-size CR^(2-),it behaves a very fast removal rate.In addition,magnetic analysis discloses that antiferromagnetic(AF)coupling exists in binuclear cobalt unit.展开更多
文摘Electroreduction of Co(Ⅱ)to metallic cohalt in urea melt is irrevsible in one step.The transfer coeffi-cient of electrode reaction of Co(Ⅱ)+2e=Co(O)and the diffusion coefficient of Co(Ⅱ)were determined.The lanthanum can be inductively codeposited with cobalt. The contents of lanthanum in cobalt-lanthanum de-posts increase with the shift of electrode potential to the negative direction and the raise of La(Ⅲ)/Co(Ⅱ)mo-lar ratio in the melt. The cyclic voltammetry,open circuit potential-time curve after potentiostatic electrolysisand electron probe analyas were used.
基金supported by the National Natural Science Foundation of China(No.21371133)。
文摘Coordination polymer{[Co(BTIA)(H_(2)O)0.5]·1.5CH_(3)OH}n(Co-1)was synthesized from Co(NO_(3))_(2)·6H_(2)O and multidentate ligand 4,6-bis-(4H-1,2,4-triazol-1-yl)-isophthalic acid(H_(2)BTIA)under solvothermal conditions.Crystal analysis found that Co-1 was a(4^(4)·6^(2))_(2)(4^(16)·6^(12))3D framework with one dimensional channels,which gives it good adsorption performance for greenhouse gas CO_(2) and anionic dyes CR^(2-) and TY^(-).In particular for the large-size CR^(2-),it behaves a very fast removal rate.In addition,magnetic analysis discloses that antiferromagnetic(AF)coupling exists in binuclear cobalt unit.
