Structural and Thermal Characteristics of Graphites Treated in Acidic Solutions

Seung Won Song; Eui Hong Min; Dong Won Lee; Jungsoo Kim; Weontae Oh

doi:10.3740/MRSK.2017.27.2.113

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Structural and Thermal Characteristics of Graphites Treated in Acidic Solutions 산수용액에서 처리된 흑연 구조와 열적 특성

February 2017. pp. 113-118

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Abstract

Natural and expandable graphites were chemically treated in acidic aqueous solutions such as acetic acid or mixtures of acetic acid and nitric acid. Structures and thermal conductivities of the as-treated graphites were characterized in detail. Both graphites were significantly oxidized in the mixed acidic solution of H₂SO₄ and HNO₃, which condition was generally used for the oxidation of carbon nanotubes. This considerable oxidation of graphites caused a depression of their thermal conductivity. The structural characteristics, obtained by XRD and XPS, show that the graphites treated in the relatively weak acidic conditions (acetic acid or mixture of acetic acid and nitric acid) were quite similar to the untreated graphites. However, the thermal conductivities of both acidic-treated graphites were remarkably increased.

Keywords

thermal conductivity

graphite sheet

acidic aqueous solution.

References

W. Zhou, D. Yu, C. Min, Y. Fu and X. Guo, J. Appl. Polym. Sci, 112; 1695 (2009)

10.1002/app.29602

G.W. Lee, J. Kim, J. Yoon, J.S. Bae, B.C. Shin, I.S. Kim, W. Oh and M. Ree, Thin Solid Films, 516; 5781 (2008)

10.1016/j.tsf.2007.10.071

J. Liu, A.G. Rinzler, H. Dai, J.H. Hafner, R.K. Bradley, P.J. Boul, A. Lu, T. Iverson, K. Shelimov, C.B. Huffman, F. Rodriguez-Macias, Y-S. Shon, T.R. Lee, D.T. Colbert and R.E. Smalley, Science, 280; 1253 (1998)

10.1126/science.280.5367.12539596576

Y. K. Chen, M. L. H. Green, J. L. Griffin, J. Hammer and R. M. Lago, Adv. Mater, 8; 1012 (1996)

10.1002/adma.19960081216

W. Hummers and R. Offeman, J. Am. Chem. Soc, 80; 1339 (1958)

10.1021/ja01539a017

G. W. Leeand and S. Kumar, J. Phys. Chem. B, 109; 17128 (2005)

10.1021/jp052943u16853185

G-W. Lee, J. Kim, J. Yoon, J-S. Bae, B.C. Shin, I.S. Kim, W. Oh and M. Ree, Thin Solid Films, 516; 5781 (2008)

10.1016/j.tsf.2007.10.071

J. Liu, A.G. Rinzler and H.J. Dai, Science, 280; 1253 (1998)

10.1126/science.280.5367.1253

Y.K. Chen, M.L. Green, J.L. Griffin, J. Hammer, R.M. Lago and S.K. Tsang, Adv. Mater, 8; 1012 (1996)

10.1002/adma.19960081216

M. Koo, J-S. Bae, S.E. Shim, D. Kim, D-G. Nam, J-W. Lee, G-W. Lee, J.H. Yeum and W. Oh, Colloid Polym. Sci, 289; 1503 (2011)

10.1007/s00396-011-2469-x

D.R. Dreyer, S. Park, C.W. Bielawski and R.S. Ruoff, Chem. Soc. Rev, 39; 228 (2010)

10.1039/B917103G20023850

A.C. Ferrari, Solid State Commun, 143; 47 (2007)

10.1016/j.ssc.2007.03.052

F. Tuinstra and J.L. Koenig, J. Chem. Phys, 53; 1126 (1970)

10.1063/1.1674108

A. Lerf, H. He, M. Forster and J. Klinowski, J. Phys. Chem. B, 102; 4477 (1998)

10.1021/jp9731821

L.T. Szabo and O. Berkesi, Carbon, 43; 3186 (2005)

10.1016/j.carbon.2005.07.013

N.I. Kovtyukhova, Y. Wang, A. Berkdemir, R. Cruz-Silva, M. Terrones, V. H. Crespi and T. E. Mallouk, Nat. Chem, 6; 957 (2014)

10.1038/nchem.205425343599

Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 27
No :2
Pages :113-118
Received Date : 2016-11-04
Revised Date : 2017-01-03
Accepted Date : 2017-01-03
DOI :https://doi.org/10.3740/MRSK.2017.27.2.113

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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