吡啶改性Pd/SiO2催化剂用于H2和O2直接合成H2O2

doi:10.3969/j.issn.0438-1157.2013.02.021

化工学报 ›› 2013, Vol. 64 ›› Issue (2): 561-567.DOI: 10.3969/j.issn.0438-1157.2013.02.021

• 催化、动力学与反应器 • 上一篇下一篇

吡啶改性Pd/SiO₂催化剂用于H₂和O₂直接合成H₂O₂

笪国进, 欧阳李科, 徐晶, 韩一帆

华东理工大学,化学工程联合国家重点实验室,上海 200237

收稿日期:2012-07-25 修回日期:2012-09-13 出版日期:2013-02-05 发布日期:2013-02-05
通讯作者: 韩一帆
作者简介:笪国进(1989—),男,硕士研究生。
基金资助:
化学工程联合国家重点实验室开放课题项目(SKL-ChE-10C05);国家自然科学基金项目(21176071,21106041);上海市浦江人才计划项目(2010/10PJ1402500,2011/11PJ1402400)。

Pyridine modified Pd/SiO₂ catalyst for direct synthesis of H₂O₂

DA Guojin, OUYANG Like, XU Jing, HAN Yifan

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2012-07-25 Revised:2012-09-13 Online:2013-02-05 Published:2013-02-05
Supported by:
supported by the State Key Laboratory of Chemical Engineering(SKL-ChE-10C05),the National Natural Science Foundation of China(21176071, 21106041) and the Shanghai Pujiang Talent Program(2010/10PJ1402500, 2011/11PJ1402400).

摘要/Abstract

关键词: 吡啶改性, 钯催化剂, 直接合成过氧化氢

Abstract: Direct synthesis of H₂O₂ from H₂ and O₂ is a green process as compared to the conventional anthraquinone oxidation route.In this study, Pd/SiO₂ catalysts modified with pyridine were prepared for direct synthesis of H₂O₂.Comparing to Pd/SiO₂ catalyst, performance of pyridine modified Pd/SiO₂ for H₂O₂ formation was enhanced remarkably, and productivity of H₂O₂ increased by a factor of 3.For pyridine modified Pd/SiO₂ catalyst, the rate of H₂O₂ formation reached a maximum when the ratio of hydrogen to oxygen was 1:2.The structure of pyridine modified Pd/SiO₂ catalyst was characterized by using X-ray diffraction (XRD) and diffuses reflection infrared Fourier Transform spectra(DRIFTS).The changes in DRIFTS spectra indicated that Pd surface structure was significantly altered by pyridine, favoring H₂O₂ formation.

Key words: pyridine modification, Pd catalyst, direct synthesis of hydrogen peroxide

中图分类号:

O614.8

笪国进, 欧阳李科, 徐晶, 韩一帆. 吡啶改性Pd/SiO₂催化剂用于H₂和O₂直接合成H₂O₂[J]. 化工学报, 2013, 64(2): 561-567.

DA Guojin, OUYANG Like, XU Jing, HAN Yifan. Pyridine modified Pd/SiO₂ catalyst for direct synthesis of H₂O₂[J]. CIESC Journal, 2013, 64(2): 561-567.

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吡啶改性Pd/SiO₂催化剂用于H₂和O₂直接合成H₂O₂

Pyridine modified Pd/SiO₂ catalyst for direct synthesis of H₂O₂

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