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OALib Journal期刊
ISSN: 2333-9721
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均匀沉淀法制备zao纳米棒
, PP. 60-64
Keywords: al掺杂zno,乙二醇,纳米棒,均匀沉淀
Abstract:
采用均匀沉淀法，以尿素、zn(no3)2·6h2o和al(no3)3·9h2o为原料，在水乙二醇溶液中制备了al掺杂zno（zao）纳米棒.x射线衍射(xrd)分析表明：纳米棒为六方纤锌矿结构，掺杂的al3+取代了zn2+的位置，形成a1/zno固溶体，保持了zno的结构．前驱体的红外光谱(ft-ir)分析表明：乙二醇的加入改变了纳米材料的表面状态．扫描电镜(sem)和高分辨透射电镜(tem)结果显示：随着反应体系中乙二醇体积比和al掺杂量的增加，zao纳米棒的长径比先增大后减小，在v(水)/v(乙二醇)=4、al掺杂量为5%(摩尔分数)时，制得长径比最大为25、直径为10nm的纳米棒.
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