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首页> 外文期刊>RSC Advances >One-pot synthesis and characterization of tungsten-containing meso-ceria with enhanced heterogenous oxidative desulfurization in fuels
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One-pot synthesis and characterization of tungsten-containing meso-ceria with enhanced heterogenous oxidative desulfurization in fuels

机译：一锅合成和表征含钨中铈二氧化铈，并增强燃料中的异质氧化脱硫

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摘要

A series of hybrid materials tungsten-containing meso-ceria characterized in detail have been designed from polyoxometalates-based ionic liquids using a one-pot hydrothermal and calcination method for heterogenous oxidative desulfurization. The experimental results indicated that the as-prepared catalysts possessed mesoporous structures and the tungsten species were well dispersed in the ceria. The effect of calcination temperature and tungsten content on the hybrid materials during the removal of dibenzothiophene was also investigated. Based on the experimental results, the optimal molar ratio of tungsten/ceria and calcination temperature of the hybrid materials were 0.25 and 400 degrees C, respectively, wherein the catalytic performance could reach 99.2% under mild conditions. It is also found that the catalyst could remove other sulfur-containing compounds in the order of DBT > BT > 4,6-DMDBT.
机译：从多金属氧酸盐基离子液体使用一锅水热和煅烧方法进行异质氧化脱硫，设计出了一系列杂化的含钨中细二氧化铈材料。实验结果表明，所制得的催化剂具有介孔结构，钨种很好地分散在二氧化铈中。还研究了煅烧温度和钨含量对二苯并噻吩去除过程中杂化材料的影响。根据实验结果，钨/二氧化铈的最佳摩尔比和杂化材料的煅烧温度分别为0.25和400℃，在温和条件下的催化性能可达99.2％。还发现该催化剂可以按DBT＞ BT＞ 4，6-DMDBT的顺序除去其他含硫化合物。

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