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Electron exchange columns through entrapment of a nickel cyclam in a sol-gel matrix

机译:通过在溶胶-凝胶基质中截留镍环十二烷的电子交换柱

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摘要

An electron exchange column (analogous to ion exchange columns) was developed using the unique redox properties of the nickel-tetraazamacrocyclic complexes (nickel cyclam [Ni~(II)L~1]~(2+)) and nickel-trans-III-meso-5,7,7,12,14,14-hexamethyl-1,4,8,11- tetraazacyclotetradecane, ([Ni~(II)L~2]~(2+)), and the physical and chemical stability of the ceramic materials using the sol-gel process to entrap the complexes. The entrapment by the biphasic sol-gel method is based on non-covalent bonds between the matrix and the complex; therefore the main problem was leaching. Parameters controlling the leaching were investigated. Redox cycles with the reducing agent ascorbic acid, and persulfate as the oxidizing agent were performed.
机译:利用镍-四氮杂大环配合物(环己酰胺[Ni〜(II)L〜1]〜(2+))和镍-反-III-镍的独特氧化还原性质,开发了一种电子交换柱(类似于离子交换柱)。中观5,7,7,12,14,14-六甲基-1,4,8,11-四氮杂环十四烷([Ni〜(II)L〜2]〜(2+))及其理化稳定性溶胶-凝胶法捕获陶瓷络合物。双相溶胶-凝胶法的包埋是基于基质和配合物之间的非共价键。因此,主要问题是浸出。研究了控制浸出的参数。用还原剂抗坏血酸和过硫酸盐作为氧化剂进行氧化还原循环。

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