Electrogenerated Chemiluminescence with Peroxydisulfate as a Coreactant Using Boron Doped Diamond Electrodes

被引:40
|
作者
Fiorani, Andrea [1 ]
Irkham [1 ]
Valenti, Giovanni [2 ]
Paolucci, Francesco [2 ,4 ]
Einaga, Yasuaki [1 ,3 ]
机构
[1] Keio Univ, Dept Chem, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan
[2] Univ Bologna, Dept Chem G Ciamician, Via Selmi 2, I-40126 Bologna, Italy
[3] JST ACCEL, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan
[4] Univ Bologna, ICMATE CNR Bologna Associate Unit, I-40126 Bologna, Italy
关键词
ALTERNATING-CURRENT-DRIVEN; AQUEOUS-SOLUTION; ELECTROCHEMILUMINESCENCE PROPERTIES; MOLECULAR ELECTROCHEMISTRY; HYDROGEN-PEROXIDE; SYSTEM; CARBON; OXIDATION; EMISSION; OXYGEN;
D O I
10.1021/acs.analchem.8b03622
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We report on the use of boron doped diamond electrodes for the electrochemiluminescence (ECL) of the coreactant peroxydisulfate and the luminophore ruthenium(II)-tris(2,2'-bipyridine). Compared to common electrode materials (i.e., Pt, Au, glassy carbon), boron doped diamond has a large overpotential for the evolution of hydrogen in aqueous electrolyte solutions. This intrinsic feature enables reductive-oxidation ECL with peroxydisulfate to be obtained without interference from hydrogen evolution and with high reproducible signals and stable emission. We investigated the effects of the peroxydisulfate concentration and the pH on the ECL emission to find the optimal conditions for enhancing the signal.
引用
收藏
页码:12959 / 12963
页数:5
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