Template and interfacial reaction engaged synthesis of CeMnO_x hollow nanospheres and their performance for toluene oxidation

Abstract

CeMnOx hollow spheres with uniform morphology were prepared and showed better catalytic activity for toluene oxidation than CeO2.

Volatile Organic Compounds Adsorption Capacities of Zeolite/Activated Carbon Composites Formed by Electrostatic Self-Assembly

“…The dichloromethane and the mixture of dichloromethane and benzene adsorption capacities of the samples were evaluated with a selfbuilt fixed bed adsorption device, which used gas mixing, adsorption, and analysis. 33 In short, the sample was placed in a vacuum drying oven at 150 °C for 4 h, and then 100 mg was weighed and loaded into a tubular fixed bed glass reactor (i.d. 10 mm).…”

Review of Shape-Controlled CeO2 Nanocatalysts for Purification of Auto-Exhaust Pollutants

“…Using SiO 2 or Al 2 O 3 as templates, hollow CeO 2 −NS materials can be obtained. 63,64 In both cases, the synthesis of SiO 2 @CeO 2 and Al 2 O 3 @CeO 2 core−shell particles is essential. Then, the selective removal of the core (SiO 2 or Al 2 O 3 ) is key to obtaining hollow CeO 2 −NS, which can be done by soaking the core−shell particles in a base, typically NaOH.…”

“…Metal-doped CeO 2 –NS materials were also developed by adopting hydrothermal/solvothermal methods. , Hollow nanospheres exhibit better properties than solid nanospheres because of higher surface-to-volume ratio and improved diffusion properties. Using SiO 2 or Al 2 O 3 as templates, hollow CeO 2 –NS materials can be obtained. , In both cases, the synthesis of SiO 2 @CeO 2 and Al 2 O 3 @CeO 2 core–shell particles is essential. Then, the selective removal of the core (SiO 2 or Al 2 O 3 ) is key to obtaining hollow CeO 2 –NS, which can be done by soaking the core–shell particles in a base, typically NaOH.…”

A glucose-assisted redox hydrothermal route to prepare a Mn-doped CeO2 catalyst for the total catalytic oxidation of VOCs

“…9,10 To this end, manganese (Mn) species have been considered viable dopants that can generate numerous deficient sites. 11,12 Therefore, the formation of active oxygen species on the catalyst surface can be feasible. 10 Thus, attempts have been devoted to developing cerium (Ce)–Mn binary oxide catalysts through various synthetic methods ( e.g.…”

“…9,10 To this end, manganese (Mn) species have been considered viable dopants that can generate numerous decient sites. 11,12 Therefore, the formation of active oxygen species on the catalyst surface can be feasible. 10 Thus, attempts have been devoted to developing cerium (Ce)-Mn binary oxide catalysts through various synthetic methods (e.g., impregnation, sol-gel, coprecipitation, redox-precipitation, urea-based combustion, and hydrothermal) directed for a wide range of applications (e.g., VOCs removal, 9,10,[12][13][14][15][16] organic synthesis, 17 electrocatalytic ammonia synthesis, 18 and CO oxidation).…”