Cover Feature: Spatially‐Resolved Insights Into Local Activity and Structure of Ni‐Based CO2 Methanation Catalysts in Fixed‐Bed Reactors (ChemCatChem 13/2021)

The Cover Feature illustrates the gradients in structure and activity along a catalytic fixed‐bed reactor during CO2‐methanation. In the focus of this study are Ni‐based catalysts. In their Full Paper, by combining spatial activity profiling and complementary structural X‐ray absorption spectroscopi...

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Bibliographic Details
Published in:	ChemCatChem 2021-07, Vol.13 (13), p.2961-2961
Main Authors:	Serrer, Marc‐André, Stehle, Matthias, Schulte, Mariam L., Besser, Heino, Pfleging, Wilhelm, Saraҫi, Erisa, Grunwaldt, Jan‐Dierk
Format:	Article
Language:	eng
Subjects:	Carbon dioxide hydrogenation Concentration and Temperature Profiles Nickel-Iron Methanation Catalyst Spatially-resolved operando study
Online Access:	Get full text
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Summary:	The Cover Feature illustrates the gradients in structure and activity along a catalytic fixed‐bed reactor during CO2‐methanation. In the focus of this study are Ni‐based catalysts. In their Full Paper, by combining spatial activity profiling and complementary structural X‐ray absorption spectroscopic studies, M.‐A. Serrer, M. Stehle et al. uncovered relationships between the course of the reaction including gas phase concentration and the structure of the catalysts. In case of a bimetallic Ni‐Fe‐catalyst, a strong correlation between Fe oxidation state and the amount of water in the gas atmosphere was found. An oxidation of Fe under formation of FeOx species is able to protect the active Ni0 centers from oxidation and can offer an alternative CO2 activation pathway. Compared to a conventional Ni‐based catalyst, this results in higher activity and selectivity. More information can be found in the Full Paper by M.‐A. Serrer, M. Stehle et al.
ISSN:	1867-3880 1867-3899