Detection and imaging of reactive oxygen species associated with the electrochemical oxygen evolution by hydrodynamic scanning electrochemical microscopy

被引：19

作者：

Iffelsberger, Christian ^{[1
]}

Raith, Timo ^{[1
]}

Vatsyayan, Preety ^{[1
]}

Vyskocil, Vlastimil ^{[2
]}

Matysik, Frank-Michael ^{[1
]}

机构：

[1] Univ Regensburg, Inst Analyt Chem Chemo & Biosensors, Fac Chem & Pharm, Univ Str 31, D-93053 Regensburg, Germany

[2] Charles Univ Prague, Fac Sci, UNESCO Lab Environm Electrochem, Dept Analyt Chem, Albertov 6, Prague 12843 2, Czech Republic

来源：

ELECTROCHIMICA ACTA | 2018年 / 281卷

关键词：

Boron-doped diamond; Hydrodynamic scanning electrochemical microscopy; Reactive oxygen species; Tip-substrate voltammetry; DOPED DIAMOND ELECTRODES; ADVANCED OXIDATION PROCESSES; HYDROXYL RADICALS; FENTON REACTION; WATER-TREATMENT; FEEDBACK MODE; REDUCTION; SECM; INTERROGATION; PLATINUM;

D O I：

10.1016/j.electacta.2018.05.115

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Hydrodynamic scanning electrochemical microscopy (SECM) was applied for the characterization of Pt and boron-doped diamond (BDD) macroelectrodes operated in a potential region producing reactive oxygen species (ROS) during oxygen evolution reaction (OER). Forced convection introduced by high-precision stirring enabled the formation of a stable diffusion layer of electrochemically produced species and tip-substrate voltammetry was used for the detection of different ROS species produced during OER at BDD. Hydrodynamic SECM imaging in substrate generation/tip collection mode revealed local differences in the production of the ROS species across the BDD electrode surface. (c) 2018 Elsevier Ltd. All rights reserved.

引用

页码：494 / 501

页数：8

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