Effect of coating modification of cordierite carrier on catalytic performance of supported NiMnO 3 catalysts for VOCs combustion

Monolithic LaBO3 (B=Mn, Co or Ni)/Co3O4/cordierite Catalysts for o‐Xylene Combustion

“…Zhang tested the stability of CM300 catalyst (Co 2 Mn 1 O x calcinated at 300 °C) for benzene combustion during a continuous reaction of 36 h at 220 °C, and the result demonstrated that the CM300 catalyst exhibited the perfect stability. Deng evaluated the stability of NiMnO 3 /Ce x Zr 1‐x O 2 /cordierite (NiMnO 3 perovskite catalysts supported on cordierite modified by Ce x Zr 1‐x O 2 coatings) for benzene oxidation, which was performed at 300 °C during a 20 hours’ long term stability test. Therefore, the stability of La 2 NiO 4 /Co 3 O 4 /cordierite catalyst at 350 °C for o ‐xylene combustion is displayed in Figure .…”

“…Three types of catalysts, namely noble metals, transition metal oxides, and complex oxides, have been widely used in the catalytic oxidation of VOCs . Although noble metals exhibit excellent catalytic performance in the combustion of VOCs, their high consumption, low storage, low thermal stability and easy toxicity limit their industry application ,. Improved properties of transition metal oxides and mixed oxides are well known, especially in terms of cost and environmental protection …”

Contribution to cleaner production from the point of view of VOC emissions abatement: A review

“…For deep oxidation of VOC and CO, the active ingredients of catalysts belong to two large groups -noble metals and oxides of transition metals and lanthanides. Oxides of the following transition metals and lanthanides are commonly used for deep non-selective oxidation: Ce, Zr, Ni, Mn, (Deng et al, 2018a) Cu, Mg, Al (Pérez et al, 2011), Ti, Co, Fe (Gelles et al, 2020). Their advantage is the low cost of precursors (Gelles et al, 2020) for the production of catalysts and their good heat resistance.…”

Catalytic Activity and Mechanical Stability of ZIFs‐Derived CoCeOx/Cordierite Monolithic Catalysts

“…Using ultrasonic impregnation method to load the powder on cordierite, the monolithic catalyst still shows excellent catalytic oxidation performance in toluene atmosphere, T 90 = 240 °C. Deng et al [32] prepared monolithic catalysts NiMnO 3 / Ce 0.75 Zr 0.25 O/cordierite using a two-step impregnation-gel method. The results show that the Ce 0.75 Zr 0.25 O 2 coating can make the NiMnO 3 perovskite particles smaller and more evenly dispersed, and can cause lattice distortion and defects, thus improving the oxygen transfer capacity.…”