Preparation of high-surface-area transition-metal nitrides: Mo sub 2 N and MoN

Journal Article · · Chemistry of Materials; (USA)

OSTI ID:6902295

Jaggers, C H; Michaels, J N; Stacy, A M ^[1]

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1. Lawrence Berkeley Lab., CA (USA)

The reactions of ammonia with MoO{sub 3}, (NH{sub 4}){sub 6}Mo{sub 7}O{sub 24} {times} 4H{sub 2}O, (NH{sub 4}){sub 2}MoO{sub 4}, and H{sub x}MoO{sub 3} to produce MoN and Mo{sub 2}N with high surface areas have been studied. Thermogravimetric analysis (TGA) and in situ x-ray diffraction (XRD) were used to follow the reaction pathway and determine the structure of the reaction intermediates and products. The surface areas of the starting materials, intermediates, and products were determined by using the BET method. The results show that all four reactants form the same oxynitride intermediate; this oxynitride converts directly to a nitride.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6902295
• Journal Information: Chemistry of Materials; (USA), Journal Name: Chemistry of Materials; (USA) Vol. 2:2; ISSN CMATE; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
COHERENT SCATTERING
DATA
DATA ANALYSIS
DIFFRACTION
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
MOLYBDENUM COMPOUNDS
MOLYBDENUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
PNICTIDES
QUANTITATIVE CHEMICAL ANALYSIS
REFRACTORY METAL COMPOUNDS
SCATTERING
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION