Effect of Calcination Temperature on the Structure and Catalytic Performance of K2WO4/Al2O3 Catalysts for Methanethiol Synthesis

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	Effect of Calcination Temperature on the Structure and Catalytic Performance of K2WO4/Al2O3 Catalysts for Methanethiol Synthesis
	Zhang Yuanhua ; Chen Shiping ; Yuan Chenglong ; Fang Weiping ; Yang Yiquan ; Yang YQ(杨意泉)
刊名	http://dx.doi.org/10.3724/SP.J.1088.2012.10870
	2012-02
关键词	HYDROGEN-SULFIDE ALCOHOLS METHANOL ZEOLITES OXIDES
英文摘要	The effect of calcination temperature on the surface morphology and catalytic performance of the K2WO4/Al2O3 catalyst prepared by the sal-gel method for the synthesis of methanethiol from methanol and hydrogen sulfide was investigated. Physicochemical characterization results of the catalyst showed that the K2WO4 is well dispersed on Al2O3, and the catalyst possesses uniform particle size after calcination at 450 or 550 degrees C. With increasing the calcination temperature, the specific surface area decreases, the interaction of W species with Al2O3 was weakened, but strengthened with basic species, leading to the decrease of surface acidity and basicity. No Bronsted acid was found on the catalyst surface. The catalytic activity of the catalyst is closely related with the specific surface area and the presence of conjugate acid-base pairs on the surface. Activity assay results show that the catalyst calcined at 550 degrees C exhibits the highest activity for the reaction.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62377]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhang Yuanhua,Chen Shiping,Yuan Chenglong,et al. Effect of Calcination Temperature on the Structure and Catalytic Performance of K2WO4/Al2O3 Catalysts for Methanethiol Synthesis[J]. http://dx.doi.org/10.3724/SP.J.1088.2012.10870,2012.
APA	Zhang Yuanhua,Chen Shiping,Yuan Chenglong,Fang Weiping,Yang Yiquan,&杨意泉.(2012).Effect of Calcination Temperature on the Structure and Catalytic Performance of K2WO4/Al2O3 Catalysts for Methanethiol Synthesis.http://dx.doi.org/10.3724/SP.J.1088.2012.10870.
MLA	Zhang Yuanhua,et al."Effect of Calcination Temperature on the Structure and Catalytic Performance of K2WO4/Al2O3 Catalysts for Methanethiol Synthesis".http://dx.doi.org/10.3724/SP.J.1088.2012.10870 (2012).