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Influence of tungsten sources on the synthesis and properties of ammonium dioxothiotungstate
Bi, Yunfei, Zeng, Shuangqin, Li, Dadong and Nie, Hong Influence of tungsten sources on the synthesis and properties of ammonium dioxothiotungstate Chemical Papers, Vol.64, No. 1, 2010, 40-45
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Bi, Yunfei
Zeng, Shuangqin
Li, Dadong
Nie, Hong
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| Title |
Influence of tungsten sources on the synthesis and properties of ammonium dioxothiotungstate
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| Journal name |
Chemical Papers
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| Publication date |
2010
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| Year available |
2010
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| Volume number |
64
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| Issue number |
1
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| ISSN |
0366-6352
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| Start page |
40
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| End page |
45
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2010
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| Language |
english
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| Subject |
290000 Engineering and Technology
290600 Chemical Engineering
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| Abstract/Summary |
Ammonium dioxothiotungstate was synthesized using different tungsten sources and characterized in detail by powder X-ray diffraction, energy dispersive X-ray spectrometry, transmission electron microscopy, nitrogen adsorption, and temperature-programmed sulfidation. It was found that tungsten oxide nanobelts are superior to ammonium metatungstate as tungsten source for the synthesis of ammonium dioxothiotungstate due to a time-consuming aging step being excluded from the synthesis route. Moreover, detailed characteristic data reveal that, when tungsten oxide nanobelts are used, the physical and chemical properties of the resulting ammonium dioxothiotungstate including particles size, specific surface area, and sulfidation pattern were improved. Also, the hydrodesulfurization measurements showed higher catalytic activity and balanced selectivity of the resulting ammonium dioxothiotungstate.
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