Evolution of the Composition and Suspension Performance of Nitrogen-Doped Graphene

被引:65
作者
Hasan, Saad A. [1 ]
Tsekoura, Eleni K. [1 ]
Sternhagen, Victoria [2 ]
Stromme, Maria [1 ]
机构
[1] Uppsala Univ, Angstrom Lab, S-75121 Uppsala, Sweden
[2] Uppsala Univ, Angstrom Microstruct Lab, S-75121 Uppsala, Sweden
关键词
CARBON NANOTUBE/POLYMER COMPOSITES; EXFOLIATED GRAPHITE OXIDE; REDUCTION; NANOSHEETS; CATALYSTS; SHEETS; ROUTE; CELLS; FILMS;
D O I
10.1021/jp210474x
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Nitrogen functionalization of graphene enables it to be used for catalysis and targeted adsorption of biomolecules in both the solid state and in suspension. Thus, we sought to characterize the functional groups and suspension charge behavior of nitrogen-doped graphene (NDG) prepared in the absence of hydrazine, a highly toxic reagent. The hydrothermal reaction of graphite oxide (GO) with ammonia was shown to effectively remove oxygen and to restore the graphitic framework within the resulting NDG sheets. The enhanced graphitic character of the NDG materials was verified using X-ray photoelectron spectroscopy, thermogravimetic analysis, and electrical conductivity measurements. With six hours of reaction time (sample NDG-6), up to 9.6 wt % (7.1 atomic %) of nitrogen could be introduced into the graphene. All the NDG materials exhibited excellent dispersibility in water allowing their surface charge to be probed by measuring zeta potential (zeta) as a function of suspension pH. The NDG-6 material could hold surface charge ranging from zeta = -50 mV to zeta = +20 mV, which is, to the best of our knowledge, the widest range of surface charges measured on a colloidal graphene material.
引用
收藏
页码:6530 / 6536
页数:7
相关论文
共 40 条
  • [1] Synthesis, characterization, and manipulation of nitrogen-doped carbon nanotube cups
    Allen, Brett L.
    Kichambare, Padmakar D.
    Star, Alexander
    [J]. ACS NANO, 2008, 2 (09) : 1914 - 1920
  • [2] Carbon nanotube field-effect-transistor-based biosensors
    Allen, Brett Lee
    Kichambare, Padmakar D.
    Star, Alexander
    [J]. ADVANCED MATERIALS, 2007, 19 (11) : 1439 - 1451
  • [3] Tuning the Acid/Base Properties of Nanocarbons by Functionalization via Amination
    Arrigo, Rosa
    Haevecker, Michael
    Wrabetz, Sabine
    Blume, Raoul
    Lerch, Martin
    McGregor, James
    Parrott, Edward P. J.
    Zeitler, J. Axel
    Gladden, Lynn F.
    Knop-Gericke, Axel
    Schloegl, Robert
    Su, Dang Sheng
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (28) : 9616 - 9630
  • [4] The doping of carbon nanotubes with nitrogen and their potential applications
    Ayala, P.
    Arenal, R.
    Ruemmeli, M.
    Rubio, A.
    Pichler, T.
    [J]. CARBON, 2010, 48 (03) : 575 - 586
  • [5] Synthesis and solid-state NMR structural characterization of 13C-labeled graphite oxide
    Cai, Weiwei
    Piner, Richard D.
    Stadermann, Frank J.
    Park, Sungjin
    Shaibat, Medhat A.
    Ishii, Yoshitaka
    Yang, Dongxing
    Velamakanni, Aruna
    An, Sung Jin
    Stoller, Meryl
    An, Jinho
    Chen, Dongmin
    Ruoff, Rodney S.
    [J]. SCIENCE, 2008, 321 (5897) : 1815 - 1817
  • [6] Identification of electron donor states in N-doped carbon nanotubes
    Czerw, R
    Terrones, M
    Charlier, JC
    Blase, X
    Foley, B
    Kamalakaran, R
    Grobert, N
    Terrones, H
    Tekleab, D
    Ajayan, PM
    Blau, W
    Rühle, M
    Carroll, DL
    [J]. NANO LETTERS, 2001, 1 (09) : 457 - 460
  • [7] Toward N-Doped Graphene via Solvothermal Synthesis
    Deng, Dehui
    Pan, Xiulian
    Yu, Liang
    Cui, Yi
    Jiang, Yeping
    Qi, Jing
    Li, Wei-Xue
    Fu, Qiang
    Ma, Xucun
    Xue, Qikun
    Sun, Gongquan
    Bao, Xinhe
    [J]. CHEMISTRY OF MATERIALS, 2011, 23 (05) : 1188 - 1193
  • [8] Deoxygenation of Exfoliated Graphite Oxide under Alkaline Conditions: A Green Route to Graphene Preparation
    Fan, Xiaobin
    Peng, Wenchao
    Li, Yang
    Li, Xianyu
    Wang, Shulan
    Zhang, Guoliang
    Zhang, Fengbao
    [J]. ADVANCED MATERIALS, 2008, 20 (23) : 4490 - 4493
  • [9] Graphene based gene transfection
    Feng, Liangzhu
    Zhang, Shuai
    Liu, Zhuang
    [J]. NANOSCALE, 2011, 3 (03) : 1252 - 1257
  • [10] Surfactant-assisted processing of carbon nanotube/polymer composites
    Gong, XY
    Liu, J
    Baskaran, S
    Voise, RD
    Young, JS
    [J]. CHEMISTRY OF MATERIALS, 2000, 12 (04) : 1049 - 1052