Nanoparticles of superconducting γ-Mo2N and δ-MoN

被引：47
|
作者：
Gomathi, A.
Sundaresan, A.
Rao, C. N. R. [1 ]
机构：
[1] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, DST Unit Nanosci, Bangalore 560064, Karnataka, India
[2] Jawaharlal Nehru Ctr Adv Sci Res, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2007年 / 180卷 / 01期
关键词：
nitrides; nanoparticles;
D O I：
10.1016/j.jssc.2006.10.020
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
We have been able to prepare nanoparticles (similar to 4 nm diameter) of cubic gamma-Mo2N by a simple procedure involving the reaction of MoCl5 with urea at 873 K. The nanoparticles show a superconducting transition around 6.5 K. The gamma-Mo2N nanoparticles are readily transformed to nanoparticles of delta-MoN with a slightly larger diameter on heating in a NH3 atmosphere at 573 K. Phase-pure delta-MoN obtained by this means shows a superconducting transition around 5 K. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：291 / 295
页数：5
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