Electrochemical Cutting in Weak Aqueous Electrolytes: The Strategy for Efficient and Controllable Preparation of Graphene Quantum Dots

doi:10.1021/acs.langmuir.7b03425

	Electrochemical Cutting in Weak Aqueous Electrolytes: The Strategy for Efficient and Controllable Preparation of Graphene Quantum Dots
	Huang, Haoguang 1,2; Yang, Siwei 1,2; Li, Qingtian 1,2; Yang, Yucheng2,3 ; Wang, Gang 4; You, Xiaofei 1,2; Mao, Baohua 1,2; Wang, Huishan 1,2; Ma, Yu 1; He, Peng 1,2; Liu, Zhi1,2,3 ; Ding, Guqiao 1,2; Xie, Xiaoming1,2,3
	2018-01-09
发表期刊	LANGMUIR (IF:3.7[JCR-2023],3.5[5-Year])
ISSN	0743-7463
卷号	34 期号:1 页码:250-258
发表状态	已发表
DOI	10.1021/acs.langmuir.7b03425
摘要	The controllable and efficient electrochemical preparation of highly crystalline graphene quantum dots (GQDs) in an aqueous system is still challenging. Here, we developed a weak electrolyte-based (typically an ammonia solution) electrochemical method to enhance the oxidation and cutting process and therefore achieve a high yield of GQDs. The yield of GQDs (3-8 nm) is 28%, approximately 28 times higher than the yield of GQDs prepared by other strong electrolytes. The whole preparation process can be accomplished within 2 h because of the effective free radical oxidation process and the suppressed intercalation-induced exfoliation in weakly ionized aqueous electrolytes. The GQDs also showed excellent crystallinity which is obviously better than the crystallinity of GQDs obtained via bottom-up approaches. Moreover, amino-functionalization of GQDs can be realized by manipulating the electrolyte concentration. We further demonstrate that the proposed method can also be expanded to other weak electrolytes (such as HF and H2S) and different anode precursor materials (such as graphene/graphite papers, carbon fibers, and carbon nanotubes).
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	National Natural Science Foundation of China[11774368] ; National Natural Science Foundation of China[11704204]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000422611500033
出版者	AMER CHEMICAL SOC
EI入藏号	20180304646325
EI主题词	Carbon ; Electrochemical cutting ; Free radicals ; Graphene ; Nanocrystals ; Semiconductor quantum dots ; Yarn
EI分类号	Metal Cutting:604.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Fiber Products:819.4
WOS关键词	CARBON DOTS ; GREEN SYNTHESIS ; LUMINESCENCE MECHANISM ; SENSITIVE DETECTION ; FLUORESCENT CARBON ; FACILE SYNTHESIS ; SCALE SYNTHESIS ; PHOTOLUMINESCENCE ; GRAPHITE ; NANODOTS
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/16237
专题	物质科学与技术学院大科学中心_PI研究组_刘志组物质科学与技术学院_特聘教授组_谢晓明组物质科学与技术学院_博士生
通讯作者	He, Peng; 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 4.Ningbo Univ, Fac Sci, Dept Microelect Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Huang, Haoguang,Yang, Siwei,Li, Qingtian,et al. Electrochemical Cutting in Weak Aqueous Electrolytes: The Strategy for Efficient and Controllable Preparation of Graphene Quantum Dots[J]. LANGMUIR,2018,34(1):250-258.
APA	Huang, Haoguang.,Yang, Siwei.,Li, Qingtian.,Yang, Yucheng.,Wang, Gang.,...&Xie, Xiaoming.(2018).Electrochemical Cutting in Weak Aqueous Electrolytes: The Strategy for Efficient and Controllable Preparation of Graphene Quantum Dots.LANGMUIR,34(1),250-258.
MLA	Huang, Haoguang,et al."Electrochemical Cutting in Weak Aqueous Electrolytes: The Strategy for Efficient and Controllable Preparation of Graphene Quantum Dots".LANGMUIR 34.1(2018):250-258.