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

页码：291 / 295

页数：5