中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Small but strong: The influence of fluorine atoms on formation and performance of graphene quantum dots using a gradient F-sacrifice strategy

文献类型:期刊论文

作者Gong PW(公培伟)1,2; Wang JQ(王金清)1; Hou KM(侯凯明)1; Yang ZG(杨志刚)1; Wang ZF(王赵峰)1; Liu, Zhe2; Han XX(韩修训)1; Yang SR(杨生荣)1; Wang JQ(王金清); Wang JQ(王金清)
刊名Carbon
出版日期2017
卷号112页码:63-71
ISSN号0008-6223
通讯作者王金清 ; 韩修训
英文摘要

Fluorinated graphene quantum dots (FGQDs) have distinctive charge distribution in structure and unique chemical bonds in composition, corresponding to novel performance different from common quantum dots. However, their synthesis is a challenge due to chemically inert Csingle bondF bonds and hydrophobic nature, and the fluorine influence on FGQDs remains scarce and to be studied. Herein, we first design a gradient fluorine-sacrificing strategy to synthesize FGQDs with controllable sizes and tunable fluorine contents from bulk fluorinated graphite. It is found that although fluorine atom is the second-smallest in periodic table, it not only greatly affects the size formation process, but also endows FGQDs with pH-independent luminescence without any additional surface passivation. And it is for the first time to experimentally observed that point defects in FGQDs induced by fluorine can greatly increase paramagnetism, which is 5 times higher than unfluorinated ones. Moreover, cytotoxicity experiments clearly reveal FGQDs show good biocompatibility, and it is the chemical surface rather than size that influences the cell viability. This work realizes fine control over both structure and chemistry of FGQDs, and thus allows a better insight into the fluorine effects on formation and performance of graphene quantum dots.

学科主题材料科学与物理化学
收录类别SCI
资助信息the National Natural Science Foundation of China (Grant Nos. 51375474;51675514);the promotive research fund for young and middle-aged scientists of Shandong Province (ZR2016EMB04);Project of Shandong Province Higher Educational Science and Technology Program (J16LA03);Doctoral Start-Up Scientific Research Foundation (BSQD20150114);Technology Program (xkj201602) of Qufu Normal University;CAS Pioneer Hundred Talents Program
语种英语
WOS记录号WOS:000390635000008
源URL[http://210.77.64.217/handle/362003/21208]  
专题兰州化学物理研究所_固体润滑国家重点实验室
兰州化学物理研究所_清洁能源化学与材料实验室
通讯作者Wang JQ(王金清); Wang JQ(王金清); Wang JQ(王金清); Han XX(韩修训)
作者单位1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Qufu Normal Univ, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China
推荐引用方式
GB/T 7714
Gong PW,Wang JQ,Hou KM,et al. Small but strong: The influence of fluorine atoms on formation and performance of graphene quantum dots using a gradient F-sacrifice strategy[J]. Carbon,2017,112:63-71.
APA Gong PW.,Wang JQ.,Hou KM.,Yang ZG.,Wang ZF.,...&韩修训.(2017).Small but strong: The influence of fluorine atoms on formation and performance of graphene quantum dots using a gradient F-sacrifice strategy.Carbon,112,63-71.
MLA Gong PW,et al."Small but strong: The influence of fluorine atoms on formation and performance of graphene quantum dots using a gradient F-sacrifice strategy".Carbon 112(2017):63-71.

入库方式: OAI收割

来源:兰州化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。