Electroless Coating of Silver on Multiwall Carbon Nanotubes

Abstract:

Silver reinforced with carbon nanotubes, instead of graphite, would increase both the electrical conductivity, hardness and wear resistance of the electrical brush materials. The effective utilization of carbon nanotubes in the Ag/CNT composite depends strongly on its uniform distribution and strong interfacial adhesion to the silver matrix and thus demands for its surface modification. In order to carry out the surface modification of carbon nanotubes, electroless coating was given to them after liquid phase oxidation, sensitization and activation process. The room-temperature chemical treatment results in a nominally complete coating over the entire outer surface of multiwall carbon nanotube. The surface morphology of the carbon nanotubes after each step has been studied using TGA, DSC, XRD, FTIR and SEM.

• Periodical: Materials Science Forum (Volume 710)
• Pages: 774-779
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.710.774
• Online since: January 2012
• Authors: Niraj Nayan, S.V.S. Narayana Murty, S.C. Sharma, K. Sreekumar, Parameshwar Prasad Sinha
• Keywords: Activation, Carbon Nanotube (CN), Electroless Coating, Sensitization

References

[1] M.M.J.Q. Treacy, T.W. Ebbesen, J.M. Gibson, Nature; 1996, 381,678–679.

[2] T.W. Ebbesen, P.M. Ajayan, Nature; 1992, 358,220–222.

[3] E.T Thostenson, Z.Ren, T.W Chou, Compos. Sci. Technol., 2001, 611,899-1912.

[4] S. Iijima, Nature; 1991, 354, 56–58.

[5] J.W. Mintwire, B.I. Dunlap, C.T. White, Phys. Rev. Lett. ; 1992, 68, 631–634.

[6] J. Broughton, M.P. Pederson, Phys. Rev. Lett. ; 1992, 69, 2689– 2692.

[7] D.T. Colbert, J. Zhang, M. Mcclures, Nanotubes Sci.; 1994, 2266, 1218–1222.

[8] T.W. Ebbersen, Ann. Rev. Mater. Sci.; 1994, 24,235–236.

[9] V V Konchits, C K. Kim, Wear, 1999, 232, 31– 40.

[10] C F Wang, F Yi, X J Zhang. Acta Metall. Sin.; 1994, 7, 157– 60.

[11] Yi Feng ,Hailong Yuan , Jr. of Mater. Sci.; 2004, 39, 3241-3243.]

[12] Indian Patent No 985/MAS/2000 dated 21/11/2007: "Process of Silver Graphite Composite through modified route".

[13] Development of Silver – Graphite brush Blocks for PCMC Radar" Report no PD: SMD/PMS/SO2B/01-R0/11-96.

[14] M. S Dresselhaus, G. Dresselhaus, S Kugihara, I.L Spain and H A Goldeberg, Graphite Fiber and Filaments, Springer –Verlag, Berlin, 1998.

[15] R L P Whitby, W K Hsu, P K Fearson, N C Billingham, I Maurin, H W Kroto, Chem. Mater.; 2002,4 , 2209-17.

[16] K. Kinoshita, Carbon: Electrochemical and Physiochemical Properties, Wiley, New York (1998) Chapter-3.

[17] J Liu, A G Rinzler, H J Dai, J H Hafner, Bradley, P J Boul, Science; 1998, 280, 1253-5.

[18] M Charbonnier, M Alami , M J Romad, Elec. chem. Soc.,1996, 143, 472

[19] L.M Ang, T.S.A Hor, Carbon; 2000,38, 363-372.

[20] F Caturla, F Molina, M Moline – Sabio, F Rodriguez – Reinoso, J Electro Chem. Soc.;1995 ,142,4084-90.

[21] Chen Xiaohua, Xia Jintong, Peng Jinguchi , Li Wenzhu , Xie Sishen ,Comp. Mater. and Tech.; 2000,60,301-306.