ic9b00502_si_001.pdf (2.19 MB)
Redox-Active Zeolitic Transition Metal Oxides Based on ε‑Keggin Units for Selective Oxidation
journal contribution
posted on 2019-04-23, 00:00 authored by Zhenxin Zhang, Satoshi Ishikawa, Qianqian Zhu, Toru Murayama, Masahiro Sadakane, Michikazu Hara, Wataru UedaThe design and development of zeolitic
transition metal oxides for selective oxidation are interesting due
to the combination of the redox properties and microporosities. Redox-active
zeolitic transition metal oxides based on ε-Keggin iron molybdates
were synthesized. O2 can be activated by the materials
via an electron-transfer-based process, and the materials can be oxidized
even at room temperature. The materials are oxidized and reduced reversibly
while the crystal structures are maintained. V is uniformly incorporated
in the materials without changing the basic structures, and the redox
properties of the materials are tuned by V. The materials are used
as robust catalysts for ethyl lactate oxidation to form ethyl pyruvate
using O2 as an oxidant.