Cerium-based metal-organic framework as an electrocatalyst for the reductive detection of dopamine

被引：15

作者：

Chiang, Yi-Ting ^{[1
]}

Gu, Yu-Juan ^{[1
]}

Song, Yi-Da ^{[1
]}

Wang, Yi-Ching ^{[1
]}

Kung, Chung-Wei ^{[1
,2
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan

[2] Natl Cheng Kung Univ, Dept Chem Engn, 1 Univ Rd, Tainan 70101, Taiwan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2022年 / 135卷

关键词：

Cerium-based MOF; Coulometric detection; Dopaquinone reduction; Electrocatalysis; Electrochemical sensor; UNSCRAMBLING ILLUSORY INHIBITION; ASCORBIC-ACID; ELECTROCHEMICAL SENSOR; CARBON ELECTRODES; OXIDATION; WATER; STABILITY; PLATFORM; FILMS; MOFS;

D O I：

10.1016/j.elecom.2022.107206

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Thin films of a chemically stable and electrochemically active cerium(IV)-based metal-organic framework (MOF), Ce-MOF-808, are capable of electrocatalyzing the reduction of dopaquinone (DAQ) generated by the electrochemical pre-oxidation of dopamine (DA) present in 3-(N-morpholino)propanesulfonic acid buffer solutions. As the first study reporting the use of pristine cerium-based MOFs in electrochemical DA detection, the stability of the MOF during electrochemical operations, optimized thin-film loading, and the electrocatalytic mechanism are investigated. By utilizing the cathodic Faradaic responses for the reduction of the electrochemically pre-generated DAQ as a probe to detect DA in the electrolyte, the interference signals from the commonly coexisting ascorbic acid and uric acid can be effectively reduced.

引用

页数：5

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