高压物理学报2011，Vol.25Issue(2)：111-117,7.
爆轰法合成碳包覆镍纳米颗粒的研究
Detonation Synthesis of Carbon-Encapsulated Nickel Nanoparticles*
摘要
Abstract
Carbon-encapsulated nickel nanoparticles (CENNPs) with core-shell structure were synthesized by detonation method using homemade composite explosives with negative oxygen balance. The detonation chemical reaction was initiated by a nonel tube detonator in a closed explosion vessel filled with nitrogen gas. Xray diffraction (XRD),X-ray fluorescence (XRF),transmission electron microscopy (TEM) with selected area electron diffraction and Raman spectrum techniques were used to characterize the as-obtained detonation products. The XRD and XRF analysis showed that the detonation products mainly consisted of the well-crystallized face-centered cubic nickel nanocrystals, carbon and other microelement. TEM showed that most nanoparticles are made up of a nickel core with the size of 10～25 nm and a carbon shell with the thickness of 1～2 nm. The Raman spectrum analysis indicated that the coating carbon shell is mainly composed of graphite and amorphous carbon. Furthermore,the possible formation mechanism for CENNPs were also discussed.关键词
碳包覆镍纳米颗粒/爆轰合成/X射线衍射/合成机制Key words
carbon-encapsulated nickel nanoparticles/ detonation synthesis/ X-ray diffraction/ formation mechanism分类
数理科学引用本文复制引用
罗宁,李晓杰,费鸿禄,莫非,张程娇..爆轰法合成碳包覆镍纳米颗粒的研究[J].高压物理学报,2011,25(2):111-117,7.基金项目
National Natural Science Foundation of China ( 10872044,10902023,10972051) （ 10872044,10902023,10972051）
National Science Foundation of Liaoning Province of China (2008161)Author Biography:LUO Ning (1980-),male,doctoral candidate,major in explosion effects and synthesis of nanomat （2008161）
