Preparation of Sulfur-Free Exfoliated Graphite in the Graphite-HClO₄-CH₃COOH Systerms

Abstract:

The sulfur-free exfoliated graphite(EG) was prepared by chemical oxidation method using the mixture of HClO4 and CH3COOH as reaction medium, the 100 orders natural flake graphite(NG) as raw material, and KMnO4 as oxidant. The effects of influence factors on the exfoliation volume(EV) were analyzed by single factor experiments and orthogonal experiments, the structure of NG and EG were characterized by X-ray diffraction. Results show that the optimum preparation conditions were as follows: graphite(g): KMnO4(g): the mixed acid (mL) = 1:0.35:4, HClO4 (mL):CH3COOH (mL) = 3:1, reaction temperature at 35°C for 90 minutes, the maximum EV of up to 500mL/g. The influence factors are governed the descending order: the volume ratio of HClO4 :CH3COOH, reaction temperature, the dosage of mixed acid, the dosage of KMnO4, reaction time.

• Periodical: Advanced Materials Research (Volume 1094)
• Pages: 61-67
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1094.61
• Online since: March 2015
• Authors: Guo Jiang Zhou*, Xiao Tong Feng, Guang Chao Lv
• Keywords: Exfoliated Graphite, Exfoliation Volume, HCLO₄-CH₃COOH, Influencing Factors, Orthogonal Experiment

References

[1] O. N. Shornikova, E. V. Kogan, N. E. Sorokina, V. V. Avdeev. Russian Journal of Physical Chemistry A, 2009, 83(6): 1022–1025.

[2] Xiaohui Ding, Rong Wang, Xin Zhang, Yanzong Zhang, Shihuai Deng, Fei Shen, Xiaohong Zhang, Hong Xiao, Lilin Wang. Marine Pollution Bulletin, 2014 (81) : 185–190.

DOI: 10.1016/j.marpolbul.2014.01.056

[3] Pan Gongpei, Guan Hua, Zhu Chenguang, Chen Xin. Chinese Journal of Energetic Material, 2007, 15(1): 70-72.

[4] Walter Wilhelm Focke, Herminio Muiambo, Washington Mhike, Hermanus Joachim Kruger, Osei Ofosu. Polymer Degradation and Stability, 2014(100): 63-69.

DOI: 10.1016/j.polymdegradstab.2013.12.024

[5] Sami Ullah, Faiz Ahmad. Solid State Phenomena , 2012(185): 90-93.

[6] N.E. Sorokina, A.V. Redchitz, S.G. Ionov, V.V. Avdeev. Journal of Physics and Chemistry of Solids , 2006(67) 1202–1204.

DOI: 10.1016/j.jpcs.2006.01.048

[7] A.S. Tikhomirov, N.E. Sorokina, O.N. Shornikova, V.A. Morozov, G. Van Tendeloo, V.V. Avdeev. Carbon 2011( 49) : 147-153.

DOI: 10.1016/j.carbon.2010.08.054

[8] Ming Zhou, Jie Tang, Qian Cheng, Gaojie Xu, Ping Cui, Luchang Qin. Chemical Physics Letters 2013(572) : 61–65.

[9] Shoji Yoshimoto, Junji Amano, Kouji Miura. J Mater Sci 2010(45): 1955–(1962).

[10] O. N. Shornikova, N. E. Sorokina, N. V. Maksimova, and V. V. Avdeev. Inorganic Materials, Vol. 41, No. 2, 2005, p.120–126.

[11] Ming-shan Zhou, Li-mei Liu, Cheng-jun Li, Yong Tao. Properties and preparation of an HClO4–CrO3–Graphite intercalation compound[J]. CARBON 2011(49): 1052-1055.

DOI: 10.1016/j.carbon.2010.10.046

[12] Mingshan Zhou, Jiancai Xia. Preparation and Characterization of the C2H5COOH-Graphite Intercalation Compound[J]. Advanced Materials Research Vols. 2013 (734-737): 2181-2186.

DOI: 10.4028/www.scientific.net/amr.734-737.2181

[13] M. V. Savos'kin, A. P. Yaroshenko, R. D. Mysyk, V. I. Shologon,S. V. Khripunov, S. A. Grebenyuk, I. E. Nosyrev, L. A. Prokof'eva. The Synthesis of Thermally Expandable Residual Graphite Nitrate in the System HNO3–CH3COOH–H2O[J]. Russian Journal of Applied Chemistry, 2012, 85(2): 172−176.

DOI: 10.1134/s1070427212020024

[14] Jihui Li, Qiaoyun Liu, Mei Li, Zhanrong Liu. Fine Chemicals. 2003, 20(06) : 341-342. (In Chinese).

[15] Jijin Zhao, Xiaoxia Li, Yuxiang Guo, Deyue Ma. Advanced Materials Research Vol. 852 (2014) pp.101-105.

[16] N. E. Sorokina, M. A. Khaskov, V. V. Avdeev, I. V. Nikol'skaya. Russian Journal of General Chemistry, 2005, 75(2): 162-168.

[17] Danfeng Zhou, Jinxing Tian. Multipurpose Utilization of Mineral Resources. 2013(01): 54-57. (In Chinese).

[18] Jijin Zhao, Xiaoxia Li, Yuxiang Guo, Deyue Ma. Advanced Materials Research. 2014 (852): 101-105.

[19] Renguang Yu, Xiaojing Qiao, Weihua Liu, Jiangcun Li. Advances in fine petrochemicals. 2003, 4(12): 32-33, 36. (In Chinese).