An electrolyte-free system for ozone generation using heavily boron-doped diamond electrodes

被引：58

作者：

Honda, Yuki ^{[1
]}

Ivandini, Tribidasari A. ^{[1
,2
]}

Watanabe, Takeshi ^{[1
]}

Murata, Kazutaka ^{[3
]}

Einaga, Yasuaki ^{[1
,4
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Chem, Yokohama, Kanagawa 2238522, Japan

[2] Univ Indonesia, Fac Math & Sci, Dept Chem, Jakarta 16424, Indonesia

[3] Nikka Micron Co Ltd, Misato, Saitama 3410018, Japan

[4] JST, CREST, Yokohama, Kanagawa 2238522, Japan

来源：

关键词：

Boron-doped diamond (BDD); Electrolyte-free; Ozone generation; sp(2) impurities; OXIDATION; EVOLUTION; RADICALS;

D O I：

10.1016/j.diamond.2013.09.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An electrolyte-free system for electrochemical ozone generation was developed using boron-doped diamond (BDD) electrodes as the anode and cathodes in combination with Nafion (R) N117/H+ as the separating membrane. Trials using BDD with various B/C ratios suggested that heavily boron-doped BDD with sp(2) impurities yielded high concentration of ozone. Further experiments by replacement of the feedstock solutions with 0.85 M Na2SO4 or 0.85 M NaCl resulted in no significant difference, suggesting that the use of pure water as the feedstock is the most appropriate method for ozone production. A high efficiency could be achieved by applying water as a feedstock for the anode and the cathode chambers. In addition, comparison with Pt electrodes confirmed that the excellent structural stability of BDD was the main factor contributing to this success. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：7 / 11

页数：5

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