Controllable preparation of vertically standing graphene sheets and their wettability and supercapacitive properties

Vertically standing graphene（VSG） sheets have been fabricated by using plasma enhanced chemical vapor deposition（PECVD） method.The lateral size of VSG nanosheets could be well controlled by varying the substrate temperature.The higher temperature usually gives rise to a smaller sheet size.The wettab...

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Bibliographic Details
Published inChinese physics B Vol. 25; no. 9; pp. 169 - 173
Main Author 周海涛 喻宁 邹飞 姚朝晖 高歌 申承民
Format Journal Article
LanguageEnglish
Published 01.09.2016
Subjects
制备
可控
垂直
氢等离子体处理
润湿性
电容性能
石墨
等离子体增强化学气相沉积
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ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/25/9/096106

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Summary:Vertically standing graphene（VSG） sheets have been fabricated by using plasma enhanced chemical vapor deposition（PECVD） method.The lateral size of VSG nanosheets could be well controlled by varying the substrate temperature.The higher temperature usually gives rise to a smaller sheet size.The wettability of VSG films was tuned between hydrophobicity and hydrophilicity by means of oxygen and hydrogen plasma treatment.The supercapacitor electrode made of VSG sheets exhibited an ideal double-layer-capacitor feature and the specific capacitance reached a value up to 9.62 F·m~（-2）.
Bibliography:vertically standing graphene wettability supercapacitor
Vertically standing graphene（VSG） sheets have been fabricated by using plasma enhanced chemical vapor deposition（PECVD） method.The lateral size of VSG nanosheets could be well controlled by varying the substrate temperature.The higher temperature usually gives rise to a smaller sheet size.The wettability of VSG films was tuned between hydrophobicity and hydrophilicity by means of oxygen and hydrogen plasma treatment.The supercapacitor electrode made of VSG sheets exhibited an ideal double-layer-capacitor feature and the specific capacitance reached a value up to 9.62 F·m~（-2）.
Hai-Tao Zhou, Ning YU, Fei Zou Zhao-Hui Yao, Ge Gao, and Cheng-Min Shen（ 1 Chinese Aeronautical Establishment, Beijing 100012, China 2School of Aerospace Engineering, Tsinghua University, Beifing 100084, China 3 Beifing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beifing 100190, China）
11-5639/O4
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/25/9/096106