Molybdenum Oxide Supported on Ti 3 AlC 2 is an Active Reverse Water-Gas Shift Catalyst

MAX phases are layered ternary carbides or nitrides that are attractive for catalysis applications due to their unusual set of properties. They show high thermal stability like ceramics, but they are also tough, ductile, and good conductors of heat and electricity like metals. Here, we study the pot...

Full description

Saved in:
Bibliographic Details
Published in:ACS sustainable chemistry & engineering Vol. 9; no. 14; p. 4957
Main Authors: Ronda-Lloret, Maria, Yang, Liuqingqing, Hammerton, Michelle, Marakatti, Vijaykumar S, Tromp, Moniek, Sofer, Zdeněk, Sepúlveda-Escribano, Antonio, Ramos-Fernandez, Enrique V, Delgado, Juan Jose, Rothenberg, Gadi, Ramirez Reina, Tomas, Shiju, N Raveendran
Format: Journal Article
Language:English
Published: United States 12.04.2021
ISSN:2168-0485, 2168-0485
Online Access:Get more information
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:MAX phases are layered ternary carbides or nitrides that are attractive for catalysis applications due to their unusual set of properties. They show high thermal stability like ceramics, but they are also tough, ductile, and good conductors of heat and electricity like metals. Here, we study the potential of the Ti AlC MAX phase as a support for molybdenum oxide for the reverse water-gas shift (RWGS) reaction, comparing this new catalyst to more traditional materials. The catalyst showed higher turnover frequency values than MoO /TiO and MoO /Al O catalysts, due to the outstanding electronic properties of the Ti AlC support. We observed a charge transfer effect from the electronically rich Ti AlC MAX phase to the catalyst surface, which in turn enhances the reducibility of MoO species during reaction. The redox properties of the MoO /Ti AlC catalyst improve its RWGS intrinsic activity compared to TiO - and Al O -based catalysts.
ISSN:2168-0485
2168-0485
DOI:10.1021/acssuschemeng.0c07881