Phase-pure M1 MoVNbTeOx/TiO2 nanocomposite catalysts: high catalytic performance for oxidative dehydrogenation of ethane

Dang Dan; Chen Yuxin; Chen XinFeng KaiYan BinhangCheng Yi

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Phase-pure M1 MoVNbTeOx/TiO2 nanocomposite catalysts: high catalytic performance for oxidative dehydrogenation of ethane

机译：相纯M1 MOVNBTEOX/TIO2纳米复合催化剂：乙烷氧化脱氢作用的高催化性能

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The catalytic performance of the phase-pure M1 MoVNbTeOx catalyst is enhanced by introducing TiO2 in oxidative dehydrogenation of ethane (ODHE). The space–time yield (STY) of the M1/TiO2 composite catalyst increases significantly with increasing TiO2 content (normalized to M1), in which the catalyst containing 40 wt% TiO2 presents the best ethylene productivity with an enhancement of 76.3% compared to phase-pure M1 at 400 °C in the ODHE process. Meanwhile, the stability of the M1/TiO2 catalysts is also demonstrated by the stable crystal structure and surface morphology of the used catalysts. The results of pulse reaction experiments further reveal that the introduction of TiO2 enhances the reduction/re-oxidation rate of lattice oxygen species in the catalysts thus improving catalytic performance.

机译：通过在乙烷的氧化脱氢作用中引入TIO2，可以增强相纯Movnbteox催化剂的催化性能。 M1/TIO2复合催化剂的时空产量（sty）随着TIO2含量的增加（标准化为M1）显着增加，其中包含40 wt％TiO2的催化剂呈现出最佳的乙烯生产率，而相比增强了76.3％ - 在ODHE过程中400°C的PURE M1。同时，使用催化剂的稳定晶体结构和表面形态也证明了M1/TIO2催化剂的稳定性。脉冲反应实验的结果进一步表明，TIO2的引入提高了催化剂中晶格氧的降低/再氧化速率，从而改善了催化性能。

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来源
《Catalysis science & technology》 |2022年第4期|1211-1219|共9页
作者
Dang Dan; Chen Yuxin; Chen XinFeng KaiYan BinhangCheng Yi;
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作者单位

Henan University of Technology;

Tsinghua University;

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原文格式 PDF
正文语种英语
中图分类汉语教学;
关键词
oxidative dehydrogenation; Catalysts; ethaneCatalysisSurface morphologyHIGH-PERFORMANCE;

机译：氧化脱氢;催化剂;乙基肌表感表面性表现性能;

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机译：Oxidative dehydrogenation of ethane to ethylene over LiCl/mnOx/pC catalysts

Phase-pure M1 MoVNbTeOx/TiO2 nanocomposite catalysts: high catalytic performance for oxidative dehydrogenation of ethane

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