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掺杂合成纳米WO₃

Study on the adulteration synthesis of nanosized WO₃ gas-sensing material

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【Author】 NIU Xinshu1,WEI Shaohong2,XU Yajie1 (1.College of Chemistry & Environmental Science,He’nan Normal University,of Environmental Science and Engineering,Education Commission of He’nan,Xinxiang 453002,China; 2.Department of Chemistry,Anyang Normal University,Anyang 455000,China)

【机构】河南师范大学化学与环境科学学院河南省高等学校环境科学与工程重点学科开放实验室；安阳师范学院化学系；河南师范大学化学与环境科学学院河南省高等学校环境科学与工程重点学科开放实验室河南新乡　453002；河南安阳　455000；河南新乡　453002；

【Abstract】 Nanopowder of xwt% SiO2+WO3(x=0,3,10,15,20) was prepared by means of solid state reaction and deposition method.The microstructure was characterized by XRD and TEM.It was observed that the nanosized monoclinic and triclinic crystal phase of WO3 formed together and the grain size decreased with the increasing adulterate quantity of SiO2.The average grain size of the solid power is about 5060nm,the deposition power is about 2030nm,and the granularity is uniform.With the increasing amount of SiO2,the proportion of the monoclinic phase decreased,and the proportion of the triclinic phase increased.更多还原