Generation of H2O2 from H2 and O2 over zeolite beta containing Pd and heterogenized organic compounds
Generation of H2O2 from H2 and O2 over zeolite beta containing Pd and heterogenized organic compounds
复制标题
在含 Pd 的沸石 β 上和多相有机化合物上由 H2 和 O2 生成 H2O2
DOI：
10.1016/s0920-5861(00)00351-5
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发表时间：
2000
期刊：
影响因子：
5.3
通讯作者：
Jong‐San Chang
中科院分区：
文献类型：
--
作者：
Sang;Lin Huang;C. Lee;Jong‐San Chang
The catalytic generation of H2O2from H2and O2has been studied over zeolite beta-supported Pd and zeolite beta-adsorbed organic compounds such as 1,4-benzoquinone (BQ), hydroquinone (HQ), azobenzene (AB) and hydrazobenzene (HAB). According to catalytic results, zeolite beta-supported Pd catalysts display effective performance relative to those prepared from other types of zeolites reported and Pd-loaded zeolite beta-adsorbed HQ catalysts show enhanced activity compared to zeolite beta-supported Pd catalysts. In situ UV–Vis spectroscopic study indicates that HQ can readily be converted to BQ reversibly under H2and air inside zeolite beta only in the presence of Pd. The results suggest that HQ acts as a strong hydrogen transfer agent to promote the production of H2O2from H2and O2in cooperation with a Pd catalyst. By contrast, adsorption of BQ, AB and HAB induces suppression of the catalytic properties of Pd/zeolite beta.
