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Flash‐Calcined CuZnAl‐LDH as High‐Activity LT‐WGS Catalyst
Author(s) -
Kowalik Paweł,
Wiercioch Paweł,
Bicki Robert,
Próchniak Wiesław,
AntoniakJurak Katarzyna,
Michalska Kamila,
Słowik Grzegorz
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201801553
Subject(s) - calcination , chemistry , catalysis , chemisorption , sintering , water gas shift reaction , sorption , limiting , inorganic chemistry , chemical engineering , atmospheric temperature range , nuclear chemistry , adsorption , organic chemistry , mechanical engineering , physics , meteorology , engineering
The set of Cu/ZnO/Al 2 O 3 catalysts was prepared by flash‐calcination of layered double hydroxycarbonate (CuZnAl‐LDH) precursor in a wide temperature range and conventional stationary technique. The catalytic materials were investigated by DTG/MS, XRD, N 2 O‐chemisorption, N 2 sorption techniques and also SEM images has been collected. Low‐temperature water‐gas shift (LT‐WGS) activity evaluation was carried out on the basis of measurements made in a differential reactor in a kinetic regime. A relationship between calcinations mode and physicochemical parameters of the catalysts and their LT‐WGS activity has been estimated. The highest reaction rate has been determined for the catalyst prepared by flash‐calcination at mild conditions. It was shown that flash‐calcination of hydroxycarbonate precursors is efficient method for high‐activity LT‐WGS catalyst preparation due to limiting the risk of material overheating and sintering as it may occur using conventional calcinations technique.