Structural transformation of carbon-encapsulated iron nanoparticles during heat treatment at 1000℃

Junping Huo; Huaihe Song; Xiaohong Chen; Suoqi Zhao; Chunming Xu

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Structural transformation of carbon-encapsulated iron nanoparticles during heat treatment at 1000℃

机译：碳包铁纳米粒子在1000℃热处理过程中的结构转变

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Carbon-encapsulated iron nanoparticles have been synthesized on a large scale by co-carbonization of an aromatic heavy oil and ferrocene at 495℃ under autogenous pressure. In this paper, the effects of heat treatment at 1000℃ on the transformation of morphology and structure of carbon-encapsulated iron nanoparticles were investigated using TEM, HREM and XRD measurements. It was found that the nanoparticles became larger and exhibited various morphologies, e.g. hollow carbon cages and carbon nanotubes, via heat treatment. The disordered carbon shell was transformed into well-ordered graphitic structure under the catalysis of iron core during heat treatment. The transformation mechanism during heat-treatment was discussed in detail.

机译：碳包裹的铁纳米颗粒是在自生压力下通过芳族重油和二茂铁在495℃下共碳化而大规模合成的。本文利用TEM，HREM和XRD测量方法研究了1000℃热处理对碳包裹铁纳米颗粒形貌和结构转变的影响。发现纳米颗粒变大并且表现出各种形态，例如纳米晶。空心碳笼和碳纳米管，通过热处理。在热处理过程中，在铁芯的催化下，无序的碳壳转变为有序的石墨结构。详细讨论了热处理过程中的相变机理。

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来源
《Materials Chemistry and Physics》 |2007年第1期|p. 221-227|共7页
作者
Junping Huo; Huaihe Song; Xiaohong Chen; Suoqi Zhao; Chunming Xu;
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作者单位

Key Laboratory of Science and Technology of Controllable Reaction, Ministry of Education, Beijing University of Chemical Technology, 100029 Beijing, PR China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;工程基础科学;
关键词
carbon-encapsulated; nanostructures; heat treatment; electron microscopy;

机译：碳封装;纳米结构;热处理;电子显微镜;

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1. Effect of oxidation and heat treatment on the morphology and electronic structure of carbon-encapsulated iron carbide nanoparticles [J] . Yu.V. Fedoseeva, L.G. Bulusheva, A.V. Okotrub, Materials Chemistry and Physics . 2012,第1期

机译：氧化和热处理对碳包裹的碳化铁纳米粒子形貌和电子结构的影响
2. Mechanism of Transformation of Ferrocene into Carbon-Encapsulated Iron Carbide Nanoparticles at High Pressures and Temperatures [J] . Baskakov Arseniy O., Lyubutin Igor S., Starchikov Sergey S., Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2018,第23期

机译：将二茂铁转化成碳包封碳化铁碳化铁纳米粒子的高压与温度
3. Characterization of Iron Core–Gold Shell Nanoparticles for Anti-Cancer Treatments: Chemical and Structural Transformations During Storage and Use [J] . Ya-Na Wu, Dar-Bin Shieh, Li-Xing Yang, Materials . 2018,第12期

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4. Effects of heat-treatment on the morphology and structureof carbon-encapsulated iron nanowires [C] . Junping Huo, Huaihe Song, Xiaohong Chen Carbon 2005 . 2005

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机译：通过简便的凝胶形成途径合成mn3O4纳米粒子，并研究其热相处理后具有明显表面形态的相和结构转变

Structural transformation of carbon-encapsulated iron nanoparticles during heat treatment at 1000℃

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