化工学报2013，Vol.64Issue(2)：561-567,7.DOI:10.3969/j.issn.0438-1157.2013.02.021
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
摘要
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.关键词
吡啶改性/钯催化剂/直接合成过氧化氢Key words
pyridine modification/Pd catalyst/direct synthesis of hydrogen peroxide分类
化学化工引用本文复制引用
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):561-567,7.基金项目
化学工程联合国家重点实验室开放课题项目(SKL-ChE-10C05) （SKL-ChE-10C05）
国家自然科学基金项目(21176071,21106041) （21176071,21106041）
上海市浦江人才计划项目(2010/10PJ1402500,2011/11PJ1402400). （2010/10PJ1402500,2011/11PJ1402400）
