Robust Joule-heating ceramic reactors for catalytic CO oxidation

Abstract Joule-heating reactors have the higher energy efficiency and product selectivity compared with based on radiative heating. Current are constructed electrically-conductive metals or carbon materials, therefore suffer from stability issue due to presence of corrosive oxidizing gases during high-temperature reactions. In this study, chemically-stable (La 0.80 Sr 0.20 ) 0.95 FeO 3 (LSF)/Gd 0.1 Ce 0.9 O 2 (GDC) ceramics been used construct for first time. Taking advantage resistance decrease ceramic temperature increase, heated under current control mode achieved automatic adjustment heating stabilize reactor temperatures. addition, electrical LSF/GDC can be tuned by content high-conductive LSF in composite density via sintering temperature, which offers flexibility The dendritic channels (less than 100 urn diameter) showed catalytic activity CO oxidation, was further improved coating efficient MnO nanocatalyst channel wall. complete oxidation at a low 165 °C. Therefore, robust successfully demonstrated effective Joule potentially applied other