Author: "Qian, Yitai" / Publication Type: Academic Journals / Topic: 3 selected - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Qian, Yitai"' showing total 3 results

Start Over Author "Qian, Yitai" Topic chemical synthesis Topic nanocrystals Topic x-ray diffraction Publication Type Academic Journals

Author: Yang, Zeheng, Cai, Peijun, Chen, Luyang, Gu, Yunle, Shi, Liang, Zhao, Aiwu, and Qian, Yitai
Subjects: *ELECTRON microscopy, *NANOCRYSTALS, *TRANSMISSION electron microscopy, *PARTICLES (Nuclear physics)
Abstract: Abstract: V2O3 and VN nanocrystals have been synthesized by the decomposition of the precursor NH4VO3 and following nitridation in an autoclave with metallic Na flux at 450–600°C. X-ray powder diffraction (XRD) recorded the evolution process of the reaction from precursor NH4VO3 to hexagonal V2O3 and then to NaCl-type VN. In addition, the products were characterized by X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). [Copyright &y& Elsevier]
Published: 2006
Full Text: View/download PDF

Author: Cai, Peijun, Yang, Zeheng, Wang, Chenyi, Xia, Ping, and Qian, Yitai
Subjects: *NANOCRYSTALS, *FLUIDS, *SODIUM, *MORPHOLOGY
Abstract: Abstract: Nanocrystalline vanadium nitride (VN) was prepared by a direct thermal liquid–solid reaction between vanadium chloride (VCl4) and sodium azide (NaN3) at 600 °C. Characterized by XRD, TEM, XPS and PL, the composition and morphology of the product were confirmed. The possible reaction mechanism was also discussed. [Copyright &y& Elsevier]
Published: 2006
Full Text: View/download PDF

Author: Wang, Liangbiao, Si, Lulu, Zhu, Yongchun, and Qian, Yitai
Subjects: *SOLID state chemistry, *CHEMICAL reactions, *ZIRCONIUM carbide, *CHEMICAL synthesis, *ZIRCONIUM oxide, *LOW temperatures, *NANOCRYSTALS, *POWDER metallurgy, *MAGNESIUM, *SCANNING electron microscopy
Abstract: Abstract: Nanocrystalline ZrC has been prepared via a convenient route by the reaction of metallic magnesium powder with zirconium oxide and lithium carbonate in an autoclave at 600°C. X-ray powder diffraction pattern indicated that the product was cubic zirconium carbide, and the cell constant was a =4.693Å. Scanning electron microscopy (SEM) image showed particles with an average size of about 30nm. The product was also studied by thermogravimetric analysis (TGA). It had good oxidation resistance below 250°C in air. [Copyright &y& Elsevier]
Published: 2013
Full Text: View/download PDF

Books, media, physical & digital resources

Searchworks