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[1]李亮,胡军,班兴明,等.石墨烯的制备及表征[J].武汉工程大学学报,2014,(08):46-50.[doi:103969/jissn16742869201408008]
　LI Liang,HU Jun,BAN Xing ming,et al.Preparation and characterization of graphene[J].Journal of Wuhan Institute of Technology,2014,(08):46-50.[doi:103969/jissn16742869201408008]
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石墨烯的制备及表征(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年08期
页码:
46-50
栏目:
化学与化学工程
出版日期:
2014-08-31

文章信息/Info

Title:
Preparation and characterization of graphene
文章编号:
16742869(2014)08004604
作者:
李亮; 胡军; 班兴明; 陈郁勃
武汉工程大学材料科学与工程学院,湖北 武汉 430074
Author(s):
LI Liang; HU Jun; BAN Xingming; CHEN Yubo
School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430074,China
关键词:
石墨烯; 茶多酚; 电化学性能
Keywords:
graphene; tea polyphenols; electrochemical properties
分类号:
O633
DOI:
103969/jissn16742869201408008
文献标志码:
A
摘要:
为了得到高性能的石墨烯材料，采用水合肼、茶多酚与抗坏血酸3种不同的还原剂将氧化石墨烯还原制备得到石墨烯.通过红外光谱、X射线衍射、接触角对产物的结构进行表征，采用四探针法测试电导率，循环伏安法和计时电位法测试电化学性能.水合肼、茶多酚与抗坏血酸这3种还原剂都能有效地将氧化石墨烯结构中的亲水基团去除，得到疏水的石墨烯.通过比较3种还原剂制备的石墨烯的电化学性能，发现通过茶多酚还原得到的石墨烯的导电性能最好，当电流密度为3 A/g时，茶多酚还原得到的石墨烯电容性能达到609 F/g，保持率达到87.71%.这表明由茶多酚还原得到的石墨烯具有更为优良的电化学性能.
Abstract:
To prepare graphene with high performance,hydrazine hydrate,tea polyphenols and ascorbic acid were used to reduce graphene oxide.The effect of the reducing agents on the properties and structures of graphene was studied.The structure of graphene was characterized by fourier transform infrared (FTIR) spectroscopic,Xray diffraction and contact angle measurements.Moreover,the conductivity was tested by the fourprobe method and the electrochemical performance was characterized by cyclic voltammetry and chronopotentiometry.Hydrazine hydrate,tea polyphenols and ascorbic acid can remove the hydrophilic groups on graphene oxide to get hydrophobic graphene.The result shows that the conductivity of graphene reduced by tea polyphenols is the best of the three and the specific capacitance is 609 F/g at the current density of 3 A/g.The specific capacitance of graphene reduced by tea polyphenols can keep 87.71% after 1 000 charge/discharge cycles.It indicates that graphene reduced by polyphenols has good electrochemical and recyclable properties.

参考文献/References:

［1］LI D,MULLERr M B,GILJE S.Processable aqueous dispersions of graphene nanosheets［J］.Nat Nano,2008,3:101105.［2］JUNG I,DIKIN D A,PINER R D.Tunable electrical conductivity of individual graphene oxide sheets reduced at low temperatures［J］.Nano Lett,2008,8:42834287.［3］GUO S J,DONG S J,WANG E K.Polyaniline/Pt hybrid nanofibers:highefficiency nanoelectrocatalysts for electrochemical devices［J］.Small,2009,5:18691876.［4］WANG H L,ROBINSON J T,LI X L.Solvothermal reduction of chemically exfoliated graphene sheets［J］.J Am Chem Soc,2009,131:9910.［5］CHEN G H,WENIG W G,WU D.PMMA/graphite nanosheets and its conducting properties［J］.Eur Polym J,2003,39:23292335.［6］CHANDRA S,BAG S,BHAR R,et al.Sonochemical synthesis and application of rhodiumgraphene nanocomposite［J］.J Nanoparticle Res,2011,13,27692777.

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备注/Memo

备注/Memo:
收稿日期：20140301基金项目：国家自然科学基金项目(20904044);武汉工程大学第五届研究生教育创新基金项目（CX2013082）作者简介：李亮（1978）,男,湖北黄石人,教授,博士.研究方向:功能复合材料制备与应用.
更新日期/Last Update: 2014-09-16