Manganese oxide OMS-2 as an effective catalyst for total oxidation of ethyl acetate

被引：147

作者：

Gandhe, Aditi R.

Rebello, Jeanette S.

Figueiredo, J. L.

Fernandes, J. B.

机构：

[1] Univ Porto, Fac Engn, Dept Engn Quim, Lab Catalise & Mat, P-4200465 Oporto, Portugal

[2] Goa Univ, Dept Chem, Talegao Plateau 403206, Goa, India

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2007年 / 72卷 / 1-2期

关键词：

VOCs; ethyl acetate; oxidation; manganese oxide OMS-2; mechanism;

D O I：

10.1016/j.apcatb.2006.10.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This investigation focuses mainly on the use of a synthetic cryptomelane type manganese octahedral molecular sieve, OMS-2, as a catalyst for the total oxidation of ethyl acetate. OMS-2 was found to be a highly efficient catalyst giving 100% conversion and selectivity to CO2, the final oxidation product. In addition, it was stable with time on stream and resistant to coking. A mechanism is proposed to explain the high selectivity. Presence of Mn4+-O2- Lewis acid-base pairs, ability of Mn to exist as a redox couple, viz. Mn4+/Mn3+ and availability of facile lattice oxygen, seem to facilitate the oxidation process. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：129 / 135

页数：7

共 37 条

[31] High surface area chromia aerogel efficient catalyst and catalyst support for ethylacetate combustion [J].