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OALib Journal期刊
ISSN: 2333-9721
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一种制备金属钨纳米针的新方法
Abstract:
？采用h2/n2/h2o混合气体在850℃下还原含有少量ni/fe/co的氧化钨混合粉末的方法,制备出金属钨纳米针.用sem、tem和eds分析等方法对金属钨纳米针进行了表征.结果表明:纳米针的顶部直径为30～70nm,根部直径为150～200nm,长度为2～10μm;纳米针具有完好的bcc单晶结构,沿〈100〉方向生长;在纳米针的生长过程中ni/fe/co起到了顶端催化作用.
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