The formation pathways of aqueous hydrogen peroxide in a plasma-liquid system with liquid as the cathode

被引：50
|
作者：
He, Xinyi [1 ]
Lin, Jiao [1 ]
He, Bangbang [1 ]
Xu, Le [2 ]
Li, Junshuai [3 ,4 ]
Chen, Qiang [1 ]
Yue, Guanghui [5 ]
Xiong, Qing [2 ]
Liu, Qing Huo [6 ]
机构：
[1] Xiamen Univ, Inst Electromagnet & Acoust, Fujian Prov Key Lab Plasma & Magnet Resonance, Dept Elect Sci, Xiamen 361005, Peoples R China
[2] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
[3] Lanzhou Univ, Key Lab Special Funct Mat & Struct Design, Minist Educ, Lanzhou 730000, Gansu, Peoples R China
[4] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
[5] Xiamen Univ, Dept Mat Sci & Engn, Coll Mat, Xiamen 361005, Peoples R China
[6] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA
来源：
PLASMA SOURCES SCIENCE & TECHNOLOGY | 2018年 / 27卷 / 08期
基金：
中国国家自然科学基金;
关键词：
atmospheric pressure discharge plasma; hydrogen peroxide; dimethyl sulfoxide; OH radical; plasma-liquid interactions; GLOW-DISCHARGE; NONTHERMAL PLASMA; WATER; NANOPARTICLES; DEGRADATION; MOBILITIES; CONTACT; ANILINE; HELIUM; PHASE;
D O I：
10.1088/1361-6595/aad66d
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Using an aqueous solution of NaCl as the cathode, we explored the atmospheric pressure Ar discharge plasma generated above the solution surface. The formation pathways of aqueous hydrogen peroxide (H2O2aq) in this system were investigated. Dimethyl sulfoxide was used as a scavenger of hydroxyl (OH) radicals to investigate the contribution of dissolved OH radicals to the H2O2aq. The results indicate that the H2O2aq is mainly formed by the combination of the dissolved OH radicals at the plasma-affected thin liquid layer, while the H2O2 formed in the gas phase and the H2O2aq formation inside water by the plasma-induced ultraviolet radiation have no contribution.
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页数：8
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