Yan Xianrong , Li Xiaojie , Wang Xiaohong , Yan Honghao
{"title":"Preparation and Characterization of Boron-Doped Nanodiamond","authors":"Yan Xianrong , Li Xiaojie , Wang Xiaohong , Yan Honghao","doi":"10.1016/S1875-5372(19)30010-4","DOIUrl":null,"url":null,"abstract":"<div><p>Boron-doped nanodiamond was prepared by a high-temperature vacuum-diffusion method. Thermogravimetric analysis, X-ray photoelectron spectroscopy, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy, Raman spectroscopy, and transmission electron microscopy were used to characterize the prepared material. Results show that the product mainly contains C, O, and B in mass fractions of 92.08%, 7.14%, and 0.78%, respectively. In addition to diamond (111)<sub>D</sub> and (220)<sub>D</sub> diffraction peaks, hexagonal diamond (100)<sub>D</sub> diffraction peaks are also observed in the XRD pattern of the boron-doped product. The introduction of B atoms increases the defect content in the nanodiamond and causes the Raman G peak to move to 1620 cm<sup>−1</sup>. B atoms are mainly present in two forms in the diamond lattice: substitutional carbon atoms in C-B bonds, and being bonded with impurity elements (such as B-O). The shape and morphology of the boron-doped nanodiamond particles (particle size of detonation nanodiamond, 2∼10 nm) exhibit no obvious changes compared to the pristine nanodiamond. However, a small amount of cubic diamond is observed. In conclusion, the initial oxidation temperature of the boron-doped nanodiamond increases by 175 °C, the oxidation rate is slower, and the thermal stability is improved.</p></div>","PeriodicalId":21056,"journal":{"name":"稀有金属材料与工程","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1875-5372(19)30010-4","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"稀有金属材料与工程","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1875537219300104","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 1
Abstract
Boron-doped nanodiamond was prepared by a high-temperature vacuum-diffusion method. Thermogravimetric analysis, X-ray photoelectron spectroscopy, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy, Raman spectroscopy, and transmission electron microscopy were used to characterize the prepared material. Results show that the product mainly contains C, O, and B in mass fractions of 92.08%, 7.14%, and 0.78%, respectively. In addition to diamond (111)D and (220)D diffraction peaks, hexagonal diamond (100)D diffraction peaks are also observed in the XRD pattern of the boron-doped product. The introduction of B atoms increases the defect content in the nanodiamond and causes the Raman G peak to move to 1620 cm−1. B atoms are mainly present in two forms in the diamond lattice: substitutional carbon atoms in C-B bonds, and being bonded with impurity elements (such as B-O). The shape and morphology of the boron-doped nanodiamond particles (particle size of detonation nanodiamond, 2∼10 nm) exhibit no obvious changes compared to the pristine nanodiamond. However, a small amount of cubic diamond is observed. In conclusion, the initial oxidation temperature of the boron-doped nanodiamond increases by 175 °C, the oxidation rate is slower, and the thermal stability is improved.