Effect of Oxide Assisted Metal Nanoparticles on Microstructure and Morphology of Gallium oxide Nanowires

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• 出版年：2007
• 作者：Kyo-Hong CHOI；Kwon-Koo CHO；Gyu-Bong CHO；Hyo-Jun AHN；Ki-Won KIM；Yoo-Young KIM
• 单位1：School of Nano Advanced Materials Engineering，ERI i-cubecenter，Gyeongsang National University
• 语种：中文
• 作者关键词：gallium oxide；β-Ga₂O₃；catalyst；nanowire；nanorod；synthesis；iron；nickel；copper；cobalt；zine
• 起始页：886
• 总页数：6
• 刊名：材料科学与工程学报
• 是否内版：否
• 刊频：双月刊
• 创刊时间：1983
• 主管单位：国家教育部
• 主办单位：浙江大学
• 主编：赵新兵
• 地址：杭州浙江大学材料系
• 邮编：310027
• 电子信箱：jmse@ema.zju.edu.cn
• 卷：25
• 期：6
• 期刊索取号：P822.06 448
• 数据库收录：美国CA源期刊；全国中文核心期刊；中国科技论文统计源期刊；中国科学引文数据库来源期刊；美国CSA收录期刊
• 核心期刊：全国中文核心期刊

摘要

Several researches have been reported about the characteristic of p.Ga203 nanowires which was synthesized on nickel oxide particle. But indeed， re cent researches about synthesis of β-Ga₂0₃ nanowires on oxide-assisted transition metal are limited to nickel or cobalt oxide catalyst.In this work， Gallium oxide（β-Ga203）nanowires were synthesized by a simple thermal evaporation method from gallium powder in the range of 700-1000aC using the iron，nickel，copper，cobalt and zinc oxide as a catalyst，respectively. The β-Ga₂O₃ nanowires with single crystalline without defects were successfuly synthesized at the reaction temperature of 850，900 and 95VC in all the catalysts. But optimum experimental condition in synthesis of nanowires varied with the kind of catalyst . As increasing synthesis mperature，the morphology of gallium oxide nanowires changed from nanowires'to nanorods， and its ziameter increased. From these results， we could be proposed that the growth mechanism of β-Ga₂O₃ nanowires was changed with synthesis temperature of nanowires. Microstructure and morphology of Synthesized nanowire was characterized by HR-TEM， FE-SEM， EDX and XRD.