| Complex Solid Superacid Catalyst WO_3-ZrO_2-SO_4~(2-) Structure of Acid Sites on the Catalyst |
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| 引用本文： | 黄银燕,张改莲,张文朴. Complex Solid Superacid Catalyst WO_3-ZrO_2-SO_4~(2-) Structure of Acid Sites on the Catalyst[J]. 稀有金属(英文版), 1992, 0(3) |
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| 作者姓名： | 黄银燕 张改莲 张文朴 |
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| 作者单位： | Department of Chemistry Beijing Normal University，Beijing 100875，China，Department of Chemistry，Beijing Normal University，Beijing 100875，China，Department of Chemistry，Beijing Normal University，Beijing 100875，China |
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| 基金项目： | The project was financed by National Natural Science Foundation of China. |
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| 摘 要： | A new type of complex solid superacid catalyst WO_3-ZrO_2-SO_4~(2-)with an acid strength H_0≤-16.04 wasprepared by kneading Zr(OH)_4 or amorphous ZrO_2 with tungstic acid(H_2WO_4)(W/Zr=0.15),followed byexposing this complex hydroxides to 0.5 tool/L H_2SO_4,calcining in air at 700～800℃ for 3h.This catalystpossesses both strong Bronsted acidity and strong Lewis acidity experimentally showed by IR observation ofpyridine absorbed on it.XPS and AES techniques were employed to examine the valence states of tungsten,zirconium,sulfur and their interactions.The structure of sulfur species was studied by infrared spectroscopyand a structure model of active site was proposed upon these results.
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Complex Solid Superacid Catalyst WO_3-ZrO_2-SO_4~(2-) Structure of Acid Sites on the Catalyst |
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| Huang Yinyan Zhang Gailian Zhang Wenpu. Complex Solid Superacid Catalyst WO_3-ZrO_2-SO_4~(2-) Structure of Acid Sites on the Catalyst[J]. Rare Metals, 1992, 0(3) |
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| Authors: | Huang Yinyan Zhang Gailian Zhang Wenpu |
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| Affiliation: | Huang Yinyan Zhang Gailian Zhang Wenpu Department of Chemistry,Beijing Normal University,Beijing 100875,China |
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| Abstract: | |
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| Keywords: | Superacid catalyst Tungsten Zirconium Sulfur Structure model |
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