期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 693, 期 -, 页码 1290-1296出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.10.092
关键词
Aqueous synthesis; MoO3; Photochromic property
资金
- National Natural Science Foundation of China [21571057, J1210040]
- Fundamental Research Funds for the Central Universities
- Science and Technology Project of Changsha City [k1403007-11]
Molybdenum trioxide (h-MoO3, alpha-MoO3 center dot H2O and h-/alpha-MoO3 composites) were prepared by a simple method in aqueous solution at 90-95 degrees C, without using autoclave or other complex equipment. The synthetic conditions for different phases of MoO3 were studied. The ratio of MoO42-:H+ and reaction temperature play important roles for the crystal phases of MoO3. By changing the amount of H+ ions, the samples can be controlled as h-MoO3 microrods or alpha-MoO3 center dot H2O microbelts. h-/alpha-MoO3 composites in homogeneous structure were obtained at higher temperatures. The study on the transformation process of h-MoO3 ->alpha-MoO3 center dot H2O ->alpha-MoO3 would be helpful in designing functional MoO3 materials. The h-MoO3 microrods and h-/alpha-MoO3 composites showed good photochromic behavior under sunlight irradiation. (C) 2016 Elsevier B.V. All rights reserved.
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