Processable Aqueous Dispersions of Graphene Stabilized by Graphene Quantum Dots

doi:10.1021/cm503782p

	Processable Aqueous Dispersions of Graphene Stabilized by Graphene Quantum Dots
	He, Peng 1; Sun, Jing 1; Tian, Suyun2 ; Yang, Siwei 1; Ding, Shengju 1; Ding, Guqiao 1; Xie, Xiaoming 1; Jiang, Mianheng 1
	2015-01-13
发表期刊	CHEMISTRY OF MATERIALS (IF:7.2[JCR-2023],8.4[5-Year])
ISSN	0897-4756
卷号	27 期号:1 页码:218-226
发表状态	已发表
DOI	10.1021/cm503782p
摘要	Dispersing graphene in various solvents is one of the key technologies toward the practical applications of graphene. Herein, using graphene quantum dots (GQDs) as stabilizer, aqueous dispersions of graphene with good stability were demonstrated by directly dispersing commercialized graphene powder into water. Amazingly, 100 mg of graphene powder could be stabilized by an average of merely 7.8 mg GQDs to form aqueous dispersions with a maximum concentration of up to 0.4 mg/mL and stability at least 3 months. The introduction of a small amount of GQDs also allowed for the fabrication of water-redispersible graphene slurry and powder, which would largely facilitate the transportation and applications of graphene. The mechanism of the GQDs stabilized graphene in water was proposed and experimentally verified through UV-visible spectroscopy and zeta potential measurements. Moreover, flexible graphene papers directly assembled from the water-dispersible graphene exhibited controllable thickness, good conductivity, and acceptable strength. With properties not compromised by GQDs, water-dispersible graphene is expected to be widely applicable in electrical and electrochemical device fields.
收录类别	SCI ; EI
语种	英语
资助项目	Chinese Academy of Sciences[KGZD-EW-303] ; Chinese Academy of Sciences[XDA02040000]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000348085300029
出版者	AMER CHEMICAL SOC
EI入藏号	20150400442564
EI主题词	Dispersions ; Nanocrystals ; Semiconductor quantum dots ; Ultraviolet visible spectroscopy
EI分类号	Semiconductor Devices and Integrated Circuits:714.2 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Materials Science:951
WOS关键词	FUNCTIONALIZED GRAPHENE ; SHEETS ; EXFOLIATION ; OXIDE ; GRAPHITE ; PAPER ; SUPERCAPACITORS ; NANOSHEETS ; HYDROGEL ; STORAGE
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2270
专题	物质科学与技术学院物质科学与技术学院_博士生
通讯作者	Ding, Guqiao
作者单位	1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 2.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
推荐引用方式 GB/T 7714	He, Peng,Sun, Jing,Tian, Suyun,et al. Processable Aqueous Dispersions of Graphene Stabilized by Graphene Quantum Dots[J]. CHEMISTRY OF MATERIALS,2015,27(1):218-226.
APA	He, Peng.,Sun, Jing.,Tian, Suyun.,Yang, Siwei.,Ding, Shengju.,...&Jiang, Mianheng.(2015).Processable Aqueous Dispersions of Graphene Stabilized by Graphene Quantum Dots.CHEMISTRY OF MATERIALS,27(1),218-226.
MLA	He, Peng,et al."Processable Aqueous Dispersions of Graphene Stabilized by Graphene Quantum Dots".CHEMISTRY OF MATERIALS 27.1(2015):218-226.