Analysis and identification of platinum-containing nanoproducts of plasma-chemical synthesis in a gaseous medium

Analysis and identification of platinum-containing nanoproducts of plasma-chemical synthesis in a gaseous medium
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气态介质中等离子体化学合成含铂纳米产物的分析和鉴定

DOI:
10.26577/phst-2019-1-p9
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发表时间:
2019
期刊:
Physical Sciences and Technology
影响因子:
--
通讯作者:
M. Sultangazina
M. Sultangazina
中科院分区:
--
文献类型:
--
作者:
D. Schur;A. Zolotarenko;A. Zolotarenko;E. P. Zolotarenko;M. V. Chimbai;A. Zolotarenko;N. Akhanova;M. Sultangazina

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本文研究了一种由石墨和铂同时等离子体化学蒸发而成的纳米产品。结果表明,在不同的合成条件下得到的沉积物具有相似且结构明确的结构,并由两个主要部分(芯和包皮)组成。这两个部分的结构都是在微米和纳米尺度上进行的。对合成产物和不使用铂的同类产品进行了比较。研究了铂在合成产物中的分布。证明了铂催化剂中的原子影响沉积的形成过程。也就是说,它刺激了矿床的形成,其中含有含碳纳米管束的铂的沉积核心作为一个独立的核心存在,它与沉积壳层没有很强的联系。用TG、DTG、DTA等方法对空气中的CNM进行了差热分析,发现不同碳纳米结构的耐热性差异不大,可以用来进行鉴别。这些研究对合成燃料电池和其他化学工业用的含铂催化剂具有重要意义。
This article studies a nanoproduct that is formed by simultaneous plasma-chemical evaporation ofgraphite and platinum. It was shown that the resulting deposits under different synthesis conditions havea similar and well-defined structure and consist of two main parts (core and enclosing bark). The structureof both parts is investigated at the micro- and nanoscale levels. The products of synthesis and similarproducts obtained without the use of platinum has been compared. The distribution of platinum in synthesisproducts is studied. It is proved that the atoms of the platinum catalyst influence the process of formationof the deposit. Namely, it stimulates the formation of a deposit where the deposit core containing platinumcontainingbundles of CNT exists as an independent core that does not have a strong connection with thedeposit shell. It is found that differential-thermal analysis of CNM in air by the methods of TG, DTG, DTAallows to reveal insignificant differences in the heat resistance of different carbon nanostructures, and thusit can be used for their identification. Such studies are of great importance for the synthesis of platinumcontainingcatalysts for fuel cells and other chemical industries.
DOI: 10.1038/354056a0
发表时间: 1991-11-07
期刊: NATURE
影响因子: 64.8
作者:
IIJIMA, S
通讯作者: IIJIMA, S