Quick Search:       Advanced Search
潘训岑,李雪琪,李晓杰,王小红,闫鸿浩,王宇新.气相爆轰法合成超细碳包铁纳米颗粒[J].稀有金属材料与工程(英文),2019,47(3):981~986.[Pan Xuncen,Li Xueqi,Li Xiaojie,Wang Xiaohong,Yan Honghao and Wang Yuxin.Research on Synthesis of ultrafine Carbon-encapsulated Iron by Gaseous Detonation Method[J].Rare Metal Materials and Engineering,2019,47(3):981~986.]
Research on Synthesis of ultrafine Carbon-encapsulated Iron by Gaseous Detonation Method
Download Pdf  View/Add Comment  Download reader
Received:July 18, 2017  Revised:September 19, 2017
DOI:
Key words: carbon-encapsulated iron nanoparticles  gaseous detonation method  ultrafine nanoparticles  magnetic materials
Foundation item:国家自然科学基金资助(10872081, 11672067, 11672068)
Author NameAffiliation
Pan Xuncen,Li Xueqi,Li Xiaojie,Wang Xiaohong,Yan Honghao and Wang Yuxin  
Hits: 43
Download times: 29
Abstract:
      Pentacarbonyl iron is used as iron source; acetylene is used as carbon source. Ultrafine carbon-encapsulated iron(Fe@C) nanoparticles was successfully synthesized by gaseous detonation method. XRD research carried out for the characterization indicated that the main phase of the detonation product was carbon, α-Fe and γ-Fe; and TEM experiment indicated that the product was ultrafine spherical shape particles and the inner Fe core was coated by a carbon outer shell. The particles have equable size, regular sharp and no agglomeration. The average diameter of Fe core is 4.5nm; Raman spectrum analysis also confirmed that the surface of the nanoparticles was consisted of graphite and amorphous carbon. The carbon-encapsulated iron particles were treated by heat treatment at low vacuum temperature 673K, then we can find the size of iron core particles grows slightly; γ-Fe phase turn to α-Fe phase in XRD and the saturation magnetization is more than doubled after heat treatment