In situ FTIR investigation on phase transformations in BN nanoparticles

YU Lili; GAO Bin; CHEN Zhi; SUN Chuantao; CUI Deliang; WANG Chengjian; WANG Qilong; JIANG Minhua

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In situ FTIR investigation on phase transformations in BN nanoparticles

机译：BN纳米粒子相变的原位FTIR研究

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Fourier transformation infrared spectrum (FTIR) was employed to investigate phase transformation of nanoparticle BN, containing eBN, rBN, wBN and cBN, in which eBN and rBN are the main components. We found that part of eBN was converted into rBN at 200-350℃. At and above 400℃, eBN transformed into wBN, and some of wBN were converted into cBN simultaneously. This conclusion is supported by the results from high- resolution transmission electron microscopic (HRTEM) and Raman spectroscopic measurements. In this work, the converting processes between different BN phases were continuously monitored by in situ FTIR spectroscopy. The results will be helpful for synthesis of cBN at moderate conditions.

机译：利用傅立叶变换红外光谱（FTIR）研究了包含eBN，rBN，wBN和cBN的纳米粒子BN的相变，其中eBN和rBN为主要成分。我们发现部分eBN在200-350℃时被转化为rBN。在400℃以上，eBN转化为wBN，部分wBN同时转化为cBN。高分辨率透射电子显微镜（HRTEM）和拉曼光谱测量的结果支持了这一结论。在这项工作中，通过原位FTIR光谱连续监测不同BN相之间的转化过程。该结果将有助于在中等条件下合成cBN。

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来源
《Chinese science bulletin》 |2005年第24期|p.2827-2831|共5页
作者
YU Lili; GAO Bin; CHEN Zhi; SUN Chuantao; CUI Deliang; WANG Chengjian; WANG Qilong; JIANG Minhua;
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作者单位

State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;

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原文格式 PDF
正文语种 eng
中图分类自然科学现状及发展;
关键词
BN nanoparticles; phase transformation; IR spectrum; in-situ monitoring;

机译：氮化硼纳米粒子相变红外光谱原位监测;

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专利

1. In situ FTIR investigation on phase transformations in BN nanoparticles [J] . YU Lili, GAO Bin, CHEN Zhi, Chinese science bulletin . 2005,第24期

机译：BN纳米粒子相变的原位FTIR研究
2. In situ investigation of ordering phase transformations in FePt magnetic nanoparticles [J] . Wittig James E., Bentley James, Allard Lawrence F. Ultramicroscopy . 2017,第期

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3. Electrochemical and in Situ FTIR Spectroscopic Investigation on the Electrochemical Transformation of 4-Aminothiphenol on a Gold Electrode in Neutral Solution [J] . C. Retna Raj, Fusao Kitamura, Takeo Ohsaka Langmuir: The ACS Journal of Surfaces and Colloids . 2001,第23期

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In situ FTIR investigation on phase transformations in BN nanoparticles

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