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Liquid Phase Preparations and Performances of Magnetic Dendritic Nanocrystalline Co

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年06期
Page:
793-796
Research Field:
Publishing date:

Info

Title:
Liquid Phase Preparations and Performances of Magnetic Dendritic Nanocrystalline Co
Author(s):
CAO Xin-fu12YANG Yi1LI Feng-sheng1LI Yu-bing2LIU Jian-xun1
1.School of Chemical Engineering,NUST,Nanjing 210094,China;2.The 46th Institute of the 6thAcademy of China Aerospace Science and Industry Corperation,Huhehot 010010,China
Keywords:
dendritic crystals nanocrystalline Co liquid phase magnetization
PACS:
TB383.1
DOI:
-
Abstract:
To obtain nanometer materials with excellent magnetization,nanometer cobalt crystals are prepared by liquid phase preparation method.The nanometer crystals are characterized by XRD,TEM,SEM,EDAX and BET.The results show that the nanometer cobalt crystals have good crystallization and dendritic shape in microstructure.The nanometer cobalt particles have 175.2 Oe coercive force(Hc) and 129.56 emu·g-1 magnetization intensity(Ms).It shows very outstanding magnetization in magnetization intensity and coercive force.The analysis of the nanometer dendritic cobalt mechanism shows that the alcohol and hydrazine can form ligand with cobaltion(Co2+) during the reaction process and the complexation reaction can promote the reductive reaction and prevent the coagulation of nanocrystalline cobalts.

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Last Update: 2008-12-30