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Novel chlorine doped graphene electrodes for positive electrodes of a vanadium redox flow battery
被引:45
作者:
Gursu, Hurmus
[1
]
Gencten, Metin
[2
]
Sahin, Yucel
[1
]
机构:
[1] Yildiz Tech Univ, Dept Chem, Fac Arts & Sci, TR-34220 Istanbul, Turkey
[2] Yildiz Tech Univ, Dept Met & Mat Engn, Fac Chem & Met Engn, TR-34220 Istanbul, Turkey
关键词:
chlorine doped graphene;
cyclic voltammetry;
graphene electrode;
perchloric acid;
vanadium redox battery;
PENCIL GRAPHITE ELECTRODE;
RENEWABLE ENERGY;
ELECTROCHEMICAL PREPARATION;
IONIC LIQUIDS;
OXIDE-FILMS;
STORAGE;
CARBON;
ACID;
SUPERCAPACITORS;
PRECIPITATION;
D O I:
10.1002/er.4083
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
One-step electrochemical preparation of chlorine doped graphene coated electrodes was succeed by cyclic voltammetric method for the first time in the literature in this work. Because hetero atom and oxygen functional groups doped graphene-based electrodes can improve the electrochemical performance of the battery with formed defects sides on the main structure of the electrodes, the modification of graphene-based electrodes by chlorine and oxygen including functional groups such as ?Cl, ?ClO4, ?ClO3, ?OH, and ?CO have been done by arranging of scanned potential in cyclic voltammetric treatment. The structural features of chlorine doped graphene electrodes were analyzed by scanning electron microscopic analysis. Chemical structures of the surface of the electrodes were elucidated by X-ray photoelectron spectroscopy. Raman analyses were carried out to determine the optical properties of the electrodes. Chlorine doped graphene-based electrodes were also used as positive electrode component of a vanadium redox battery for the first time in the literature. The electrodes showed great electrochemical performance as positive electrode materials of the battery.
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页码:3303 / 3314
页数:12
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