| AuPt合金的两种典型生长机理研究 |
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| 引用本文： | 陈有为,谭曜,刘汉伟,黄姣,陈丹超,张威波,周生虎. AuPt合金的两种典型生长机理研究[J]. 材料导报, 2017, 31(Z1): 11-14, 18 |
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| 作者姓名： | 陈有为 谭曜 刘汉伟 黄姣 陈丹超 张威波 周生虎 |
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| 作者单位： | 宁波检验检疫科学技术研究院, 宁波 315012;宁波出入境检验检疫局, 宁波 315012,宁波检验检疫科学技术研究院, 宁波 315012;宁波出入境检验检疫局, 宁波 315012,宁波检验检疫科学技术研究院, 宁波 315012;宁波出入境检验检疫局, 宁波 315012,宁波检验检疫科学技术研究院, 宁波 315012;宁波出入境检验检疫局, 宁波 315012,宁波检验检疫科学技术研究院, 宁波 315012;宁波出入境检验检疫局, 宁波 315012,宁波检验检疫科学技术研究院, 宁波 315012;宁波出入境检验检疫局, 宁波 315012,中国科学院宁波材料技术与工程研究所, 宁波 3152010 |
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| 基金项目： | 宁波市自然科学基金(2013A610076)；国家质量监督检验检疫总局科技计划项目(2016IK172;2015IK180)；宁波出入境检验检疫局科技计划项目(甬K02-2015;甬K01-2015) |
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| 摘 要： | 分别采用晶种生长法和快速共还原法制备得到了AuPt合金。采用晶种生长法制备AuPt合金时,Au晶种的尺寸对Au-Pt双金属结构的形成有关键性影响,当用小尺寸的Au纳米颗粒(3nm)作为晶种时才会形成AuPt合金结构,当Au晶种尺寸较小时,由于颗粒内纳米尺度的原子快速扩散导致合金结构的形成。高温下油胺对Au和Pt前体的快速共还原会使Au和Pt在极短的时间内同时得到还原,避免了两相的分离,得到了AuPt合金结构。
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| 关 键 词： | AuPt合金 晶种生长法 快速共还原法 纳米颗粒 |
Study on the Two Typical Growth Mechanism of AuPt Alloy |
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| CHEN Youwei,TAN Yao,LIU Hanwei,HUANG Jiao,CHEN Danchao,ZHANG Weibo and ZHOU Shenghu. Study on the Two Typical Growth Mechanism of AuPt Alloy[J]. Materials Review, 2017, 31(Z1): 11-14, 18 |
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| Authors: | CHEN Youwei TAN Yao LIU Hanwei HUANG Jiao CHEN Danchao ZHANG Weibo ZHOU Shenghu |
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| Affiliation: | Ningbo Academy of Science and Technology for Inspection and Quarantine, Ningbo 315012;Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo 315012,Ningbo Academy of Science and Technology for Inspection and Quarantine, Ningbo 315012;Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo 315012,Ningbo Academy of Science and Technology for Inspection and Quarantine, Ningbo 315012;Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo 315012,Ningbo Academy of Science and Technology for Inspection and Quarantine, Ningbo 315012;Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo 315012,Ningbo Academy of Science and Technology for Inspection and Quarantine, Ningbo 315012;Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo 315012,Ningbo Academy of Science and Technology for Inspection and Quarantine, Ningbo 315012;Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo 315012 and Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201 |
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| Abstract: | AuPt alloy nanoparticles(NPs) were synthesized by a seeded growth method and a fast co-reduction method. It was found that the dimension of Au seeds is a key factor in the structure formation of AuPt alloy NPs while using seeded growth method. Small Au seeds (3 nm) reduced by butyllithium favored the formation of AuPt alloy structure due to the fast atomic diffusion inside nanoparticles. Fast co-reduction of Au and Pt precursors by oleyamine in the high temperature resulted in AuPt alloy structure as it avoided the separation of Au phase and Pt phase. |
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| Keywords: | AuPt alloy nanoparticles seeded growth method fast co-reduction methods nanoparticles |
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