Study on the supramolecular systems of two basic violets with cyclodextrins by MWNTs/Nafion modified glassy carbon electrode

Study on the supramolecular systems of two basic violets with cyclodextrins by MWNTs/Nafion modified glassy carbon electrode
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MWNTs/Nafion修饰玻碳电极研究两种碱性紫罗兰与环糊精的超分子体系

DOI:
10.1016/j.cclet.2009.03.018
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发表时间:
2009-08
影响因子:
9.1
通讯作者:
Dong, Chuan
Dong, Chuan
中科院分区:
化学1区
文献类型:
--
作者:
Guo, Yu Jing;Shuang, Shao Min;Song, Jin Ping;Dong, Chuan

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研究了甲基紫和乙基紫在多壁碳纳米管/Nafion修饰玻碳电极上的电化学性质。碱性紫的氧化还原为双电子双质子过程,甲基紫的电子转移能力强于乙基紫。同时,用示差脉冲伏安法测定了两种碱性紫与五种环糊精的包结常数。两种碱性紫和CD可以形成1:1的络合物。两种碱性紫的包合容量大小顺序为:CM-β-CD>HP-β-CD>TM-β-CD>DM-β-CD>β-CD。
The electrochemical properties of two basic violets (methyl violet and ethyl violet) at the MWNTs/Nafion modified glassy carbon electrode were investigated. The redox of the basic violets is two-electron and two-proton process, and methyl violet presents stronger electron transfer capacity than ethyl violet. Meanwhile, the inclusion constants of the two basic violets with five CDs were determined by differential pulse voltammetry (DPV). The two basic violets and CDs can form 1:1 complexes. The inclusion capacities of the two basic violets follow the same order: CM-β-CD>HP-β-CD>TM-β-CD>DM-β-CD>β-CD.
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