Synthesis of Molybdenum Blue Dispersions Using Ascorbic Acid as Reducing Agent

被引：19
|
作者：
Gavrilova, Natalia [1 ]
Myachina, Maria [1 ]
Harlamova, Daria [1 ]
Nazarov, Victor [1 ]
机构：
[1] D Mendeleev Univ Chem Technol Russia, Dept Colloid Chem, Miusskaya Sq 9, Moscow 125047, Russia
来源：
COLLOIDS AND INTERFACES | 2020年 / 4卷 / 02期
关键词：
molybdenum blue; molybdenum oxide nanocluster; polyoxometalate; dispersions; stability; CATALYSTS; IONS; POLYOXOMOLYBDATES; REDUCTION; PARTICLES; OXIDATION; CLUSTERS;
D O I：
10.3390/colloids4020024
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Stable molybdenum blue nanoparticles dispersions were synthesized using ammonium heptamolybdate and ascorbic acid. The effect of molar ratios of reducing agent/Mo and acid/Mo on the speed of formation and stability of the disperse system has been demonstrated. The particles were characterized by UV/vis, infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, and dynamic light scattering (DLS) methods. The X-ray photoelectron spectroscopy (XPS) method confirmed the presence of reduced Mo(V)in the structure of molybdenum oxide nanoclusters, the proportion of which was 30%.
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页数：14
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