硝酸改性对活性炭结构及钌炭催化性能的影响

摘要运用H₂脉冲化学吸附、N₂低温吸附技术和TPR-MS联用技术研究了酸改性的活性炭(AC)的结构性质，考察了酸处理对活性炭载体物理结构和化学性质的影响。研究表明，酸处理可以显著增加活性炭表面含氧官能团数量，经过改性的活性炭用于制备前驱体RuCl₃/AC，Ru组分与含氧官能团之间存在明显的相互作用。酸改性对活性组分Ru的分散度及有效Ru比表面有较大影响，导致了Ru/AC用于催化丁酮加氢活性的显著改善。

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	王燕辉
	姜浩锡
	宋彦坤

关键词：活性炭硝酸钌分散度加氢

Abstract： H₂ pulse chemisorption, N₂ adsorption and TPR-MS were adopted to test structure properties of active carbon (AC) treated with nitric acid. Effects of nitric acid treatment on AC pore structure and chemical composition were studied. It was indicated that the amount of oxygenfunctional group was considerably increased for the AC which was pretreated by nitric acid. As the support of Ru/AC catalyst, it was found that there was strong interaction between Ru species and oxygenfunctional groups which significantly influenced the dispersion of Ru and apparently improved the catalytic activity of Ru/AC for hydrogenation of n-butanone.

Keywords： active carbon nitric acid ruthenium dispersion hydrogenation

Received 2012-04-20;

Corresponding Authors: 宋彦坤，电话：13619360478，E-mail：yksong7786294@163.com。 Email: yksong7786294@163.com

About author: 王燕辉（1986-），女，硕士研究生，从事超临界流体技术与应用催化研究。

引用本文:

王燕辉, 姜浩锡, 宋彦坤.硝酸改性对活性炭结构及钌炭催化性能的影响[J]. 化学工业与工程, 2013,30(2): 26-30

WANG Yan-Hui, JIANG Hao-Xi, SONG Yan-Kun.Influence of Nitric Acid Treatment on Active Carbon Structure and Activity of supported ruthenium catalyst[J]. Chemcial Industry and Engineering, 2013,30(2): 26-30