摘要
本文以硫酸为支持电解质,在水-1,4-二氧六环混合溶剂中,用电化学方法研究了Keggin结构的H_3PMo_(12)O_(40)、M_3PMo_(12)O_(40)(M=NH_4,Na,K)、H_4PMo_(11)VO_(40)及M_(?)H_(4-(?))PMo_(11)VO_(40)(M=Na,La,K,Eu;对于Na和La,n=1～4,对于K,n=4;对于Eu,n=2)的氧化还原特性。还分析了钼和钒的氧化还原顺序及其可逆性。
The Oxidation-reduction behaviour of H3PMo12O40, M3PMo12O40 (M = NH4, Na, K), H4PMo11VO40 and M,H4-RPMo1jVO40(M = Na, La, K, Eu; n=1-4 for Na and La,n=4 for K, n= 2 for Eu) with a Keggin structure was studied by an electrochemical method in the mixed solvents of water-dioxane containing supporting electrolyte of 0. 5 mol/L H2SO4. The molybdenum in the acids and in their salts can gain or lose eight electrons, the vanadium in them can gain or lose one electron. The order and reversibility of oxidation- reduction for molybdenum and vanadium were also analyzed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第10期1096-1101,共6页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
杂多酸
磷钼酸
磷钼钒酸
氧化还原
Heteropolyacid, Redpx, Molybdophosphoric heteropolyacid, Molybdovanadophosphoric heteropolyacid
