Assessment of Nanocatalyst Dispersibility in a Polymer by Employing Relative Standard Deviation

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Abstract:

A relative standard deviation (RSD) method has been developed to evaluate the nanocatalyst dispersibility in an energetic polymer. The dispersibility of nanocatalyst and thermal characteristics of the polymer exhibits high dependence on the RSD of the concentration distributions of nanocatalyst. The improvement of the dispersibility of nanocatalyst, which is dependent on kneading time, can be presented by a decrease in the RSD of the concentration distributions. Moreover, the decomposition temperature and the combustion heat of the polymer is reduced gradually and enhanced distinctly, respectively, with the decrease of the RSD of the nanocatalyst distributions. However, over-kneading may lead to a reunion of nanocatalyst and a decline of thermal characteristics of the energetic polymer, and presented with an increasing of the RSD of the concentrations of nanocatalyst. The optimal kneading time is 3 h and an acceptable value of the RSD is approximately 1% of the concentration distributions of nanocatalyst for the energetic polymer with nanometer copper oxide catalyst.

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Advanced Materials Research (Volumes 557-559)

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558-562

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July 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Yusof A.M., Abdul Rashid N.A, Abbasi M.J., et al. Study of stability and dispersibility of oxidized multiwall carbon nanotube and characterization with analytical methods for bioapplication [J]. J Chem Health Risk, 2011, 1(2):251-259.

Google Scholar

[2] K.W. Kolasinski. Surface science: foundations of catalysis and nanoscience (3rd ed). John Wiley and Sons, 2012.

Google Scholar

[3] J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang. Dispersibility and degradation properties characterization of nano titanium dioxide photocatalysis material, Key Eng Mater, 2007, (334-335): 565-568.

DOI: 10.4028/www.scientific.net/kem.334-335.565

Google Scholar

[4] K. E. Prasad, B. Das, U. Maitra, U. Ramamurty, and C. N. R. Rao. Extraordinary synergy in the mechanical properties of polymer matrix composites reinforced with nanocarbons. Proc Natl Acad Sci, USA, 2009, 106(32): 13186- 13189

DOI: 10.1073/pnas.0905844106

Google Scholar

[5] S.X. Xu, H.J. Chen, X.F. Zhang, et al. Thermal catalysis induced chemiluminescence and its application for determination of volatile chlorinated hydrocarbons [J]. Anal. Methods, 2011, 3, 896-901.

DOI: 10.1039/c0ay00739k

Google Scholar

[6] F. Yin, S. Lee, A. Abdela, et al. Communication: Suppression of sintering of size-selected Pd clusters under realistic reaction conditions for catalysis [J]. J. Chem. Phys., 2011, 134(14): 1101-1104.

DOI: 10.1063/1.3575195

Google Scholar

[7] S Seino, Y Matsuoka, T Kinoshita, T Nakagawa and T A. Yamamoto. Dispersibility improvement of gold/iron-oxide composites nanoparticles by polyethylenimine modification, J Magn Magn Mater, 2009, 321(10): 1404-1407.

DOI: 10.1016/j.jmmm.2009.02.050

Google Scholar

[8] H.L. Xin, J.A. Mundy, Z. Liu, et al. Atomic-resolution spectroscopic imaging of ensembles of nanocatalyst particles across the life of a fuel cell [J]. Nano Lett., 2012, 12 (1): 490–497.

DOI: 10.1021/nl203975u

Google Scholar

[9] M.A. Bodea, J.D. Pedarnig, T.D. Withnell, H.W. Weber, D.A. Cardwell, N.H. Babu, A.K, Veneva. Characterization of nano-compiste M-24411/Y-123 thin films by electron backscatter diffraction and in-field critical current measurements. 9th Eur Confer Appl Supercond (EUCAS 09), 2010, 234: 012006

DOI: 10.1088/1742-6596/234/1/012006

Google Scholar

[10] G.N. Wang, X.F. Wang, J.F. Liu, et al. Mesoporous Au/TiO2 nanocomposite microspheres for visible-light photocatalysis [J]. Chemistry - A European Journal, 2012, DOI: 10.1002/ chem. 201101410

Google Scholar

[11] C. Zietz, A. Fritsche, B. Finke, et al. Analysis of the release characteristics of Cu-treated antimicrobial implant surfaces using atomic absorption spectrometry [J]. Bioinorganic Chemistry and Applications, 2012, (2012), 5 pages

DOI: 10.1155/2012/850390

Google Scholar

[12] Y. Suneetha, B.N. Kumar, Y. Harinath, et al. Functionalization of cross linked chitosan with 2-aminopyridine-3-carboxylic acid for solid phase extraction of cadmium and zinc ions and their determination by atomic absorption spectrometry [J]. Microchimica Acta, 2012, 176(1-2): 169-176.

DOI: 10.1007/s00604-011-0707-z

Google Scholar