Fabrication and Characterization of Antimony-doped Tin Oxide Coating Diatomite Conductive Material with Microporous Structure

doi:10.3724/SP.J.1077.2011.01031

Abstract

Abstract: Porous and conductive diatomite composite materials were prepared via the calcination of the Sb-SnO₂-coated diatomite precursor derived from the co-precipitation route with diatomite as the substrate. Conductivity of the samples was influenced by the Sb-SnO₂ coating ratio. Calcination temperature had an impact on the crystal lattice parameters and grain sizes, hence altering the conductivity and resistivity of the composite materials. The samples were characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), energy-dispersive X-ray spectrometry (EDS), N₂ adsorption-desorption measurement (BET), and Fourier transform infrared spectrometry (FT-IR). The conductive performance of the samples was determined using a Four-Point Probe Meter apparatus. It is shown that the mesoporous (pore diameter = 6 nm) sample with n(Sn)/n(Sb)=8/1 and a Sb-SnO₂coating ratio of 25.8wt% derived from calcination at 700℃ exhibited the lowest resistivity of 22 Ω·cm.

Key words: diatomite, porous structure, Sb-SnO₂ coating, conductivity, resistivity

CLC Number:

TB34

DU Yu-Cheng, YAN Jing, MENG Qi, LI Yang, DAI Hong-Xing. Fabrication and Characterization of Antimony-doped Tin Oxide Coating Diatomite Conductive Material with Microporous Structure[J]. Journal of Inorganic Materials, 2011, 26(10): 1031-1036.

References

[1] Burgard D, Goetbert C, Nass R. Synthesis of nanocrystalline, redispersable antimony-doped SnO2 particles for the preparation of conductive. Journal of Sol-Gel Science and Technology, 1998, 13(1/2/3): 789-792.

[2] Ohishi T, Mackawa S, Ishikawa T. Preparation and properties of anti-reflection/anti-static thin films for cathode ray tubes prepared by sol-gel method using photoirradiation. Journal of Sol-Gel Science and Technology, 1997, 8(1/2/3): 511-515.

[3] Rockenberger L, Felde U Z, Tischer M, et al. Near edge X-ray absorption -ne structure measurements (XANES) and extended X-ray absorption -ne structure measurements (EXAFS) of the valence state and coordination of antimony in doped nanocrystalline SnO2. Journal of Chemical Physics, 2000, 112(9): 4296-4304.

[4] Wu S P. Preparation of ultra--ne copper powder and its lead-free conductive thick -lm. Materials Letters, 2007, 61(16): 3526-3530.

[5] 颜东亮, 吴建青, 钟焱(YAN Dong-Liang, et al). 锑掺杂氧化锡包覆氧化硅导电粉的制备及电性能. 硅酸盐学报(Journal of the Chinese Ceramic Society), 2009, 37(4): 591-595.

[6] Hu P W, Yang H M. Controlled coating of antimony-doped tin oxide nanoparticles on kaolinite particles. Applied Clay Science, 2009, 48(3): 368-374.

[7] 杨华明, 胡岳华, 张慧慧, 等(YANG Hua-Ming, et al). Sb-SnO2/BaSO4导电粉末的制备与表征. 硅酸盐学报(Journal of the Chinese Ceramic Society), 2006, 34(7): 776-781.

[8] Tan J R, Shen L Z, Fu X S, et al. Preparation and conductive mechanism of mica titania conductive pigment. Dyes and Pigment, 2004, 62(2): 107-114.

[9] 倪月琴, 徐德顺, 张毅, 等. SnO2-Sb2O3-TiO2导电粉末及其导电涂层的制备. 化学工业与工程, 2008, 25(3 ): 194-198.

[10] Koivula R, Harjula R, Lehto J. Structure and ion exchange properties of tin antimonates with various Sn and Sb contents. Microporous and Mesoporous Materials, 2002, 55(3): 231-238.

[11] Puetz J, Chalvet F N, Aegerter M A. Wet chemical deposition of transparent conducting coatings in glass tubes. Thin Solid Films, 2003, 442(1/2): 53-59.

[12] Feng X J, Ma J, Yang F, et al. Transparent conducting SnO2:Sb epitaxial -lms prepared on α-Al2O3 (0001) by MOCVD. Materials Letters, 2008, 62(12/13): 1779-1781.

[13] Kim K S, Yoon S Y, Lee W J, et al. Surface morphologies and electrical properties of antimony-doped tin oxide -lms deposited by plasma-enhanced chemical vapor deposition. Surface and Coatings Technology, 2001, 138(2/3): 229-236.

[14] 薄占满(BO, Zhan-Man). 掺Sb二氧化锡半导体导电机理的实验探索. 无机材料学报(Journal of lnorgonic Materials), 1990, 5(4): 324-329.

[15] Hu Y H, Zhang H H, Yang H M. Synthesis and electrical property of antimony-doped tin oxide powders with barite matrix. Journal of Alloys and Compounds, 2008, 453(1/2): 292-297.

[16] Zhang L, Zhao Y H, Dai H X, et al. A comparative investigation on the properties of Cr-SBA-15 and CrOx/SBA-15. Catalysis Today, 2008, 131(1-4): 42-54.

[17] Sheng G D, Wang S W, Hu J, et al. Adsorption of Pb(II) on diatomite as affected via aqueous solution chemistry and temperature. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2009, 339(1/2/3): 159-166.

[18] Gao B J, Jiang P F, An F Q, et al. Studies on the surface modification of diatomite with polyethyleneimine and trapping effect of the modified diatomite for phenol. Applied Clay Science, 2005, 250 (1-4): 273-279.

[19] Liu C C, Maciel G E. The fumed silica surface: a study by NMR. Journal of the American Chemical Society, 1996, 118(21): 5103-5119.