Preparation and characterization of high concentration graphene aqueous dispersion

被引：1
|
作者：
Wang Chen [1 ]
Yan Shao-jiu [1 ]
Nan Wen-zheng [1 ]
Wang Ji-xian [1 ]
Peng Si-kan [1 ]
机构：
[1] AECC Beijing Inst Aeronaut Mat, Res Ctr Graphene Applicat, Beijing 100095, Peoples R China
来源：
CAILIAO GONGCHENG-JOURNAL OF MATERIALS ENGINEERING | 2019年 / 47卷 / 04期
关键词：
flake graphite; high-pressure homogenization liquid phase exfoliation; graphene aqueous dispersion; high concentration; FEW-LAYER GRAPHENE; SURFACTANT ADSORPTION; EXFOLIATION; GROWTH; ENERGY; FILMS;
D O I：
10.11868/j.issn.1001-4381.2018.000478
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The high concentration graphene aqueous dispersion was obtained by high-pressure homogenization liquid phase exfoliation (HPH-LPE) of flake graphite in water. The effect of surfactant concentration, HPH pressure and cycle number on the concentration of graphene dispersion C-G was studied by UV-Vis spectra. The structure and morphology of graphene were analyzed by Roman spectra, SEM and TEM. The results indicate that C-G is obtained up to 324.3 mg.L-1 for the first time by the parameters optimization, which is 10 times higher than that obtained by sonication; graphene obtained has few defects, thin thickness and large size, indicating the good quality of graphene production; the conductivity of free-standing film prepared by the obtained graphene dispersion can reach 3.2 X 10(4) S.m(-1).
引用
收藏
页码：56 / 63
页数：8
相关论文
共 31 条
  • [11] Bottom-up Growth of Epitaxial Graphene on 6H-SiC(0001)
    Huang, Han
    Chen, Wei
    Chen, Shi
    Wee, Andrew Thye Shen
    [J]. ACS NANO, 2008, 2 (12) : 2513 - 2518
  • [12] High-Concentration Solvent Exfoliation of Graphene
    Khan, Umar
    O'Neill, Arlene
    Lotya, Mustafa
    De, Sukanta
    Coleman, Jonathan N.
    [J]. SMALL, 2010, 6 (07) : 864 - 871
  • [13] Kumar P., 2014, INT J ENG ANG TECHNO, V5, P16
  • [14] High-Concentration, Surfactant-Stabilized Graphene Dispersions
    Lotya, Mustafa
    King, Paul J.
    Khan, Umar
    De, Sukanta
    Coleman, Jonathan N.
    [J]. ACS NANO, 2010, 4 (06) : 3155 - 3162
  • [15] Delamination of graphite in a high pressure homogenizer
    Nacken, T. J.
    Damm, C.
    Walter, J.
    Rueger, A.
    Peukert, W.
    [J]. RSC ADVANCES, 2015, 5 (71) : 57328 - 57338
  • [16] NAN W Z. YAN S J. PENG S K, 2015, J MAT ENG, V46, P43
  • [17] Electric field effect in atomically thin carbon films
    Novoselov, KS
    Geim, AK
    Morozov, SV
    Jiang, D
    Zhang, Y
    Dubonos, SV
    Grigorieva, IV
    Firsov, AA
    [J]. SCIENCE, 2004, 306 (5696) : 666 - 669
  • [18] Graphene Dispersion and Exfoliation in Low Boiling Point Solvents
    O'Neill, Arlene
    Khan, Umar
    Nirmalraj, Peter N.
    Boland, John
    Coleman, Jonathan N.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (13): : 5422 - 5428
  • [19] Colloidal Suspensions of Highly Reduced Graphene Oxide in a Wide Variety of Organic Solvents
    Park, Sungjin
    An, Jinho
    Jung, Inhwa
    Piner, Richard D.
    An, Sung Jin
    Li, Xuesong
    Velamakanni, Aruna
    Ruoff, Rodney S.
    [J]. NANO LETTERS, 2009, 9 (04) : 1593 - 1597
  • [20] Fluorinated graphene/sulfur hybrid cathode for high energy and high power density lithium primary batteries
    Peng, Sikan
    Yan, Shaojiu
    Wang, Nan
    Nan, Wenzheng
    Wang, Jixian
    Chen, Xiang
    Wang, Chen
    Qi, Xin
    Dai, Shenglong
    [J]. RSC ADVANCES, 2018, 8 (23): : 12701 - 12707
1234