Facile synthesis of high surface area molybdenum nitride and carbide

被引：16
|
作者：
Roy, Aaron [1 ,2 ]
Serov, Alexey [1 ,2 ]
Artyushkova, Kateryna [1 ,2 ]
Brosha, Eric L. [3 ]
Atanassov, Plamen [1 ,2 ]
Ward, Tim L. [1 ,2 ]
机构：
[1] Univ New Mexico, Dept Chem & Biol Engn, Albuquerque, NM 87131 USA
[2] Univ New Mexico, Ctr Microengn Mat, Albuquerque, NM 87131 USA
[3] Los Alamos Natl Lab, Sensors & Electrochem Devices MPA 11, Los Alamos, NM 87545 USA
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 228卷
关键词：
Fuel-cell materials; Catalysis; X-Ray photoelectron spectroscopy; XRD; High surface area molybdenum nitride; METAL CARBIDES; CATALYSTS; NITROGEN; TUNGSTEN;
D O I：
10.1016/j.jssc.2015.05.007
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis of high surface area gamma-MO2N and alpha-MO2C is reported (116 and 120 m(2)/g) without the temperature programmed reduction of MoO3. gamma-Mo2N was prepared in an NH3-free synthesis using forming gas (7 at% H-2, N-2-balance) as the reactive atmosphere. Three precursors were studied ((NH4)(6)Mo7O24 center dot 4H(2)O, (NH4)(2) Mg(MoO4)(2), and MgMoO4) along with the sacrificial support method (SSM) as a means of reducing the particle size of MO2N and MO2C. In situ X-ray diffraction (XRD) studies were carried out to identify reaction intermediates, the temperature at which various intermediates form, and the average domain size of the MO2N products. Materials were synthesized in bulk and further characterized by XRD, HRTEM, XPS, and BET. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：232 / 238
页数：7
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