Premium
Synthesis and Physicochemical Characterization of Ce 1− x Gd x O 2− δ : A Case Study on the Impact of the Oxygen Storage Capacity on the HCl Oxidation Reaction
Author(s) -
Möller Maren,
Urban Sven,
Cop Pascal,
Weller Tobias,
Ellinghaus Rüdiger,
KleineBoymann Matthias,
Fiedler Carsten,
Sann Joachim,
Janek Jürgen,
Chen Limei,
Klar Peter J.,
Hofmann Detlef M.,
Philipps Jan,
Dolcet Paolo,
Gross Silvia,
Over Herbert,
Smarsly Bernd M.
Publication year - 2015
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201500712
Subject(s) - catalysis , characterization (materials science) , chemical engineering , oxygen , materials science , specific surface area , chemistry , analytical chemistry (journal) , nuclear chemistry , nanotechnology , organic chemistry , engineering
This study reports the synthesis of high‐surface‐area Ce 1− x Gd x O 2− δ (CGO) fibers that are used as catalysts for the oxidation of HCl. Special emphasis is put on the role of the oxygen storage capacity (OSC) of the CGO fibers on the catalytic performance. An in‐depth physicochemical characterization of high‐surface‐area CGO was achieved by employing a multitude of dedicated spectroscopic techniques. The increasing OSC with Gd content is traced to the development of a space charge region with increased electron concentration as a result of the nano size of the CGO particles. The activity of CGO in the HCl oxidation reaction is shown to decrease with Gd concentration.