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  • 简介:CyclicvoltammetryandchronoamperometrywereusedtoinvestigatetheclectrochemicalbehaviorofFe(Ⅱ)andEr(Ⅲ)inaLiClO4-DMSO(dimethylsufoxide)systematPtandCuelectrodes.ExperimentalresultsindicatethatthereductionsofFe(Ⅱ)toFe(0)andEr(Ⅲ)toEr(0)wereirreversibleatPtandCuelectrodes.ThediffusioncoefficientandtheclectrontransfercoeffieientofFe(Ⅱ)ina0.01mol/LFeCl2-0.1mol/LLiClO4-DMSOsystemat303Kwere1.70×10^-10m^2/sand0.08respectively,thediffusioncoeffieientandtheelectrontransfercoefficientofEr(Ⅲ)ina0.01mol/LErCl3-0.1mol/LLiClO4-DMSOsystemat303Kwere1.47×10^-10m^2/sand0.108respectivealy.Thehomogeneous,strongadhesiveEr-FealloyfilmscontainingErof31.39%-42.12%inmassfractionwithmetalliclustrewerepreparedbypotentiostaticelectrolysisonaCuelectrodeinaErCl3-FeCl2-LiClO4-DMSOsystemat-1.75—-2.05V(vs.SCE).

  • 标签: 铒钫合金 薄膜 二甲亚砜 循环伏安法 计时安培分析法 电化学
  • 简介:Thesolidaddofthefirstprotonatedzincoborophosphate,(H3O)Zn(H2O)2BP2O8·H2O(1),wassoventothermallysyn-thesizedbythereactionofZn(NO3)2·6H2OandH3BO3withH3PO4inamixedsolvent,andstructurallycharacterizedbysingle-ystalX-raydiffractionanalysis.ItcrystallizesinthehexagonalP6122,a=0.9604(4)nm,c=1.5297(6)nm,V=1.2218(8)nm^3,Dc=2.921g/cm^3,Z=6,F(000)=1080,μ=3.495mm^-1.Thestmchwefeaturesthatthetetrahedra-te-trahedrahdlcesinterconnectedbyoctahedraandstronghydro-gembondinteractionsformathree-dimensionalframework.Theprotonatedwatermoleculesarelocatedatuniquepositions.othercharacterizationsbyIRandthermalanalysisarealsode-scribed.

  • 标签: (H3O)Zn(H2O)2BP2O8·H2O 合成 结构 质子化 螺旋带状物 硼磷酸锌化合物