A Mssbauer spectral study on heat-induced phase transformation in Ni-Fe cyanide

XIA Yanfang XIAO Yongjun HU Chuangye LIU Lin ZHEN Xianli

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A Mssbauer spectral study on heat-induced phase transformation in Ni-Fe cyanide

更新时间：2021-03-05

- A Mssbauer spectral study on heat-induced phase transformation in Ni-Fe cyanide
- NUCLEAR TECHNIQUES Vol. 33, Issue 11, (2010)
- 作者机构：
  
  南华大学核科学与技术学院
- 作者简介：
- 基金信息：
  
  “核技术及应用”重点学科、放射性测量与防护技术湖南省高校创新团队资助
- DOI：
  CLC： O482.5
- Published：01 November 2010
- 稿件说明：
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[1]夏艳芳,肖拥军,胡创业,刘林,郑贤利.Ni_3[Fe(CN)_6]_2·16.5H_2O热致相变的穆斯堡尔谱研究[J].核技术,2010,33(11):824-827.

XIA Yanfang XIAO Yongjun HU Chuangye LIU Lin ZHEN Xianli. A Mssbauer spectral study on heat-induced phase transformation in Ni-Fe cyanide[J]. Nuclear techniques, 2010, 33(11): 824-827.
[1]夏艳芳,肖拥军,胡创业,刘林,郑贤利.Ni_3[Fe(CN)_6]_2·16.5H_2O热致相变的穆斯堡尔谱研究[J].核技术,2010,33(11):824-827. DOI：

XIA Yanfang XIAO Yongjun HU Chuangye LIU Lin ZHEN Xianli. A Mssbauer spectral study on heat-induced phase transformation in Ni-Fe cyanide[J]. Nuclear techniques, 2010, 33(11): 824-827. DOI：

摘要

共沉淀法合成的Ni3[Fe（CN）6]2·16.5H2O粉末样品在室温、100oC、160oC下真空干燥。不同温度下真空干燥的样品具有面心立方结构

晶格常数在10左右。室温下真空干燥的样品以FeIII-CN-NiII结构为主

同时有少量的FeII-CN-NiIII结构。随着干燥温度的增加

FeIII-CN-NiII结构逐渐转化为FeII-CN-NiIII结构

表明此化合物在热诱导过程中产生了相变。

Abstract

Molecular magnet nickel(Ⅱ) hexacyanoferrate(Ⅲ) powder

Ni3[Fe(CN)6]2·16.5H2O

was prepared by co-precipitation method

and the co-precipitated powder was treated at room temperature

100 oC and 160 oC.It possessed a face-centered cubic(FCC) crystal structure with lattice constant of around 10 .For the freeze-dried sample

the structure was mainly FeⅢ-CN-NiⅡ

with a minor amount of FeⅡ-CN-NiⅢ structure;while for the cyanide annealed at higher temperatures

the FeIII-CN-NiII structure was gradually converted to FeⅡ-CN-NiⅢ

indicating phase transformation during the annealing.

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Related Institution

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