A zeolitic vanadotungstate family with structural diversity and ultrahigh porosity for catalysis

Zhenxin Zhang (), Qianqian Zhu, Masahiro Sadakane, Toru Murayama, Norihito Hiyoshi, Akira Yamamoto, Shinichi Hata, Hisao Yoshida, Satoshi Ishikawa, Michikazu Hara and Wataru Ueda ()
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Zhenxin Zhang: Kanagawa University
Qianqian Zhu: Kanagawa University
Masahiro Sadakane: Hiroshima University
Toru Murayama: Tokyo Metropolitan University
Norihito Hiyoshi: National Institute of Advanced Industrial Science and Technology (AIST) 4-2-1 Nigatake, Miyagino
Akira Yamamoto: Kyoto University
Shinichi Hata: Tokyo Metropolitan University
Hisao Yoshida: Kyoto University
Satoshi Ishikawa: Kanagawa University
Michikazu Hara: Tokyo Institute of Technology
Wataru Ueda: Kanagawa University

Nature Communications, 2018, vol. 9, issue 1, 1-11

Abstract: Abstract Design of the structure and composition of crystalline microporous inorganic oxides is of great importance in catalysis. Developing new zeolites is one approach towards this design because of the tunable pore system and high thermal stability. Zeolites are limited to main group elements, which limits their applications in redox catalysis. Another promising choice is zeolitic transition metal oxides providing both porosity and redox activity, thereby further expanding the diversity of porous materials. However, the examples of zeolitic transition metal oxides are rare. Here, we report a new class of zeolitic vanadotungstates with tunable frameworks exhibiting a large porosity and redox activity. The assembly of [W4O16]8− units with VO2+ forms two isomeric porous frameworks. Owing to the complex redox properties and open porosity, the vanadotungstates efficiently catalyse the selective reduction of NO by NH3. This finding provides an opportunity for design and synthesis of inorganic multifunctional materials for future catalytic applications.

Date: 2018
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DOI: 10.1038/s41467-018-06274-2

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