Microwave-assisted conversion of methane over H-(Fe)-ZSM-5: Evidence for formation of hot metal sites

Coke Formation over Zeolite Catalysts in Light Alkanes Aromatization and Anti-Carbon-Deposition Strategies and Perspectives: A Review

“…Moreover, microwavesensitive catalysts are more likely to produce filamentous carbon species with microwave-assisted heating conditions. 29 2.2. The Double-Sided Nature of Coke.…”

“…For example, Ni can promote the generation of filamentous carbon species, the formation of which on Ni-containing catalysts can be hundreds or even thousands of times higher than that of ordinary catalysts. Moreover, microwave-sensitive catalysts are more likely to produce filamentous carbon species with microwave-assisted heating conditions …”

Hydrogenation of carbon dioxide (CO2) to fuels in microreactors: a review of set-ups and value-added chemicals production

“…164 However, a deeper understanding of microwave-assisted catalytic reactions is required to overcome complexities, limited availabilities on dielectric properties of the catalysts and major difficulties in temperature measurements. 190…”

Designing Local Microwave Heating of Metal Nanoparticles/Metal Oxide Substrate Composites

“…Metal nanoparticles (NPs) are selectively heated by MWs when supported on metal oxide (MO x ) catalyst supports such as Al 2 O 3 or SiO 2 , which are generally transparent to MWs. , The reaction is accelerated by the rapid formation of high-temperature “hotspots” at the catalyst active sites, enabled by the direct MW irradiation of the supported metal NPs. Jie et al reported that the use of MWs accelerates the dehydrogenation of fossil fuels using Fe@SiC catalyst by selectively heating the Fe NPs and enables a very high selectivity for hydrogen production. , Deng et al reported that the selective heating of Fe supported on a zeolite catalyst with a low Si/Al ratio by MWs promoted the dehydroaromatization of methane . They suggested that the aggregation of Fe under MW irradiation indicated that the MWs triggered the selective heating and concomitant sintering of the Fe.…”

“…9,10 Deng et al reported that the selective heating of Fe supported on a zeolite catalyst with a low Si/Al ratio by MWs promoted the dehydroaromatization of methane. 11 They suggested that the aggregation of Fe under MW irradiation indicated that the MWs triggered the selective heating and concomitant sintering of the Fe. Wildfire et al successfully synthesized ammonia using Ru/MgO under mild pressure conditions by employing MW irradiation, which was likely absorbed by the Ru particles owing to synergy with the MgO catalyst support, resulting in the heating of the Ru particles.…”