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稀土气相扩渗法制备钕-氮化钼及其导电性
引用本文:李昕,吴丽平,郭元茹.稀土气相扩渗法制备钕-氮化钼及其导电性[J].无机化学学报,2006,22(10):1911-1915.
作者姓名:李昕  吴丽平  郭元茹
作者单位:1. 哈尔滨工业大学应用化学系,哈尔滨,150001
2. 东北林业大学材料科学与工程学院,哈尔滨,150040
摘    要:过渡金属氮化物因其具有共价固体、离子晶体和过渡金属的综合特性,从而表现出特殊的物理性质和化学性质1],并具有导电性好,键合强度大、硬度和熔点高等特点,因此比传统的铜、铝及其合金更适合制备电子器件2,3]。此外其电磁特征类似金属,导电率、霍尔系数、磁化率和热熔都属于金属范围,是一种应用前景良好的导电材料4 ̄6]和电极材料7]。传统的合成方法主要采用金属卤化物、氢化物与氮、氨反应或者金属和氮反应获得相应的金属氮化物2,8]。在已有的合成方法中,均存在反应时间长,产物中常伴有M o2N、γ鄄M o2N等杂相,不利于应用。稀土气…

关 键 词:稀土气相扩渗    钕-氮化钼    导电性
文章编号:1001-4861(2006)10-1911-05
收稿时间:2006-05-30
修稿时间:2006-07-27

Preparation and Conductivity of Nd-MoN by Rare Earth Gas Phase Permeation
LI Xin,WU Li-Ping and GUO Yuan-Ru.Preparation and Conductivity of Nd-MoN by Rare Earth Gas Phase Permeation[J].Chinese Journal of Inorganic Chemistry,2006,22(10):1911-1915.
Authors:LI Xin  WU Li-Ping and GUO Yuan-Ru
Institution:Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001,Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001 and College of Material Science and Engineering, Northeast Forestry University, Harbin 150040
Abstract:Nd-doped MoN was prepared by thermal permeation of rare earth Nd in MoN using FeMo6 as the precursor. XRD, DTA, XPS and XRF have been used to characterize the FeMo6 precursor and the thermal treated samples. XRD, XPS and XRF results show that FeMo6 structure is decomposed and Nd-doped MoN is formed during the thremal treatment. XPS results also give the evidence that it is Nd3+ ion that can be permeated into the bulk of MoN. The conductivity of MoN is increased from 0.228 S·cm-1 to 2.649 × 102 S·cm-1 by Nd doping.
Keywords:rare earths co-permeation  Nd-MoN  conduction
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