Design and synthesis of highly active MoVTeNb-oxides for ethane oxidative dehydrogenation
Journal Article
·
· Nature Communications
- Technical Univ. of Munich (Germany). Dept. of Chemie & Catalysis Research Center; DOE/OSTI
- Clariant Produkte GmbH, Bruckmühl (Germany)
- Univ. of Connecticut, Storrs, CT (United States). Inst. of Materials Science. Dept. of Materials Science and Engineering
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Inst. for Integrated Catalysis; Univ. of Liverpool (United Kingdom). School of Engineering & School of Physical Sciences. Imaging Center at Liverpool (ICal)
- Technical Univ. of Munich (Germany). Dept. of Chemie & Catalysis Research Center
- Technical Univ. of Munich (Germany). Dept. of Chemie & Catalysis Research Center; Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Inst. for Integrated Catalysis
Ethane oxidative dehydrogenation (ODH) is an alternative route for ethene production. Crystalline M1 phase of Mo-V mixed metal oxide is an excellent catalyst for this reaction. Here we show a hydrothermal synthesis method that generates M1 phases with high surface areas starting from poorly soluble metal oxides. Use of organic additives allows control of the concentration of metals in aqueous suspension. Reactions leading to crystalline M1 take place at 190 °C, i.e., approximately 400 °C lower than under current synthesis conditions. The evolution of solvated polyoxometalate ions and crystalline phases in the solid is monitored by spectroscopies. Catalysts prepared by this route show higher ODH activity compared to conventionally prepared catalysts. The higher activity is due not only to the high specific surface area but also to the corrugated lateral termination of the M1 crystals, as seen by atomic resolution electron microscopy, exposing a high concentration of catalytically active sites.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1624188
- Journal Information:
- Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 10; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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