不同酸催化溶胶-凝胶法制备负热膨胀ZrW2O8粉体及其性能
Preparation and Property of Negative Thermal Expansion ZrW2O8 Powder by Sol-Gel Method with Different Acid Catalysts
摘 要
分别以HAc、HClO4、H2SO4、H3PO4、(NH4)2HPO4、HCl和HNO3为催化剂, 以硝酸氧锆和钨酸铵为原料, 采用溶胶-凝胶法制备ZrW2O8粉体, 分析了不同酸催化剂对该粉体的微观形貌和负热膨胀性能的影响。结果表明: 当加入的酸性催化剂为HCl和HNO3时, 能够获得结晶良好、纯度高的纳米ZrW2O8粉体, 而以其他5种酸为催化剂均未能得到ZrW2O8粉体; 以HCl为催化剂时, ZrW2O8粉体呈絮状团聚, 以HNO3为催化剂时则呈规则棒状; ZrW2O8粉体均表现出良好的负热膨胀性能, 在相同的温度下, 晶胞参数较小的其热膨胀系数较大。
ZrW2O8
溶胶-凝胶法
酸催化
negative thermal expansion
ZrW2O8
sol-gel method
acid catalysis
Abstract
Using HAc, HClO4, H2SO4, H3PO4, (NH4)2HPO4, HCl and HNO3 as catalysts respectively, zirconium oxynitrate and ammonium metatungstate as raw materials, ZrW2O8 powder was prepared by the sol-gel method. The effects of different acid catalysts on the micromorphology and negative thermal expansion property were analyzed. The results show that the well-crystallized and pure ZrW2O8 powder was obtained when the added acid catalyst was HCl or HNO3, while no ZrW2O8 powder was obtained with the other five kinds of acid catalysts. The ZrW2O8 powder was flocculent aggregation using HCl catalyst while that was regular rod-like with HNO3 catalyst; the negative thermal expansion property of the ZrW2O8 powder was strong and the heat expansion coefficient with a relatively small unit cell parameter was a relatively high at the same temperature.
中图分类号 TB34 DOI 10.11973/jxgccl201612010
所属栏目 新材料 新工艺
基金项目 江苏省自然科学基金资助项目(BK20130523); 国家自然科学基金资助项目(51272093, 51202093); 江苏大学高级专业人才科研启动基金资助项目
收稿日期 2015/7/28
修改稿日期 2016/10/25
网络出版日期
作者单位点击查看
备注孙秀娟(1981-), 女, 江苏镇江人, 助理研究员, 博士。
引用该论文: SUN Xiu-juan,CHENG Xiao-nong,YANG Juan,LIU Qin-qin. Preparation and Property of Negative Thermal Expansion ZrW2O8 Powder by Sol-Gel Method with Different Acid Catalysts[J]. Materials for mechancial engineering, 2016, 40(12): 42～46
孙秀娟,程晓农,杨娟,刘芹芹. 不同酸催化溶胶-凝胶法制备负热膨胀ZrW2O8粉体及其性能[J]. 机械工程材料, 2016, 40(12): 42～46
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参考文献
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【2】MARY T A, EVANS J S O, VOGT T, et al. Negative thermal expansion from 0.3 to 1 050 Kelvin in ZrW2O8［J］. Science, 1996, 272(5258): 90-92.
【3】CHEN X, GUO F L, DENG X B, et al. Synthesis, structure and negative thermal expansion of cubic ZrW2-xVxO8-x/2 solid solutions ［J］. Journal of Alloys and Compounds, 2012,537:227-231.
【4】LIU H F, ZHANG Z P, ZHANG W, et al. Effects of HCl concentration on the growth and negative thermal expansion property of the ZrW2O8 nanorods［J］.Ceramics International, 2012,38:1341-1345.
【5】CHEN X, GUO F L, DENG X B, et al. Synthesis, phase transition and negative thermal expansion of cubic Zr(W1-yMoy)2-xVxO8-x/2 (y=0.10, 0.20, 0.30, 0.40; 0≤x≤0.40) solid solutions［J］. Journal of Alloys and Compounds, 2014,612:252-258.
【6】屈展, 杨新波, 程晓农. 固相法制备Al2(WO4)3粉体及其负热膨胀性能［J］.机械工程材料, 2007,31(7):19-21.
【7】CHANG L L Y, SCROGER M G, PHILIPS B. Condensed phase relations in the systems ZrO2-WO2-WO3 and HfO2-WO2-WO3［J］. Journal of the American Ceramic Society, 1967,50(2):211-215.
【8】付廷波, 程晓农, 严学华, 等. 磁控溅射法制备ZrW2O8薄膜及其性能［J］. 机械工程材料, 2007,31(8):26-28.
【9】TANI J, TAKAHASHI M, KIDO H. Fabrication and thermal expansion properties of ZrW2O8/Zr2WP2O12 composites ［J］.Journal of the European Ceramin Society,2010,30(6):1483-1488.
【10】BADRINARAYANAN P, AHMAD I M, AKINC M, et al. Synthesis, processing, and characterization of negative thermal expansion zirconium tungstate nanoparticles with different morphologies ［J］. Materials Chemistry and Physics, 2011,131:12-17.
【11】MANDI V, KURAJICA S. The influence of solvents on sol-gel derived calcium aluminate ［J］. Materials Science in Semiconductor Processing, 2015,38:306-313.
【12】SANJABI S, OBEYDAVI A. Synthesis and characterization of nanocrystalline MgAl2O4 spinel via modified sol-gel method ［J］. Journal of Alloys and Compounds,2015,645:535-540.
【13】LIU Q Q, CHENG X N, YANG J, et al. Fabrication of negative thermal expansion ZrMo2O8 film by sol-gel method ［J］. Materials Science and Engineering B, 2012,177:263-268.
【14】孙秀娟, 杨娟, 刘芹芹, 等. 溶胶凝胶法制备超细负热膨胀ZrW2O8粉体［J］. 功能材料, 2006,37(11):1768-1770.
【15】杨南如, 余桂郁. 溶胶-凝胶法简介第一讲——溶胶凝胶法的基本原理与过程［J］. 硅酸盐通报, 1992(2): 56-63.
【16】DONG C. Powder X: windows-95-based program for powder X-ray diffraction data procession ［J］. Journal of Applied Crystallography, 1999, 32(4): 838-838.
【17】EVANS J S O, MARY T A, VOGT T.Negative thermal expansion in ZrW2O8 and HfW2O8 ［J］. Chemistry of Materials, 1996, 8(12): 2809-2823.
【18】RAVINDRAN T R, ARORA A K, MARY T A. High-pressure Raman spectroscopic study of zirconium tungstate［J］. Journal of Physics: Condensed Matter, 2001, 13(50): 11573-11588.
【19】EVANS J S O, HU Z, JORGENSEN J D, et al. Compressibility, phase transition, and oxygen migration in zirconium tungstate, ZrW2O8 ［J］. Science, 1997,275(5296):61-65.
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