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   

  1. 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:2013-01-31
  • 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   

  1. 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:2013-01-31
  • 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).

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
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