Hydrogen production via reforming of biogas over nanostructured Ni/Y catalyst: Effect of ultrasound irradiation and Ni-content on catalyst properties and performance

Catalytic wet air oxidation of phenol over ultrasound-assisted synthesized Ni/CeO2–ZrO2 nanocatalyst used in wastewater treatment

“…According to the direct effect of the synthesis method on the stability and activity of the catalysts, the sonochemistry method is proposed as a suitable method for settling of metallic nanoparticles on the different supports without damaging to their structure (Khoshbin and Haghighi, 2014;Rahmani et al, 2014b;Sharifi et al, 2014). Ultrasound can enhance and promote dispersion of the active metal on the carrier, thus improving the catalytic performance of the catalyst (Estifaee et al, 2014;Liu et al, 2010;Rahmani et al, 2014a).…”

Dry reforming of methane over nanostructured Co/Y catalyst for hydrogen production: Effect of ultrasound irradiation and Co-loading on catalyst properties and performance

“…Also, sol-gel and hydrothermal are costly and time-consuming methods [17,[21][22][23][24]. Among modern methods, using of ultrasound resource was an interesting technique to prepare novel nanocatalyst with particular properties [1,2,25,26]. The sonochemical method can produce nanoparticles with uniform size and prepares the nanocatalysts much faster than other methods.…”

“…Some of the past studies revealed stability of the nanocatalysts were increased by employing of sonochemical method [2,[28][29][30]. http Biogas reforming and dry reforming of methane (DRM) is a significant process for hydrogen and syngas production with H 2 /CO molar ratio of 1, which is the ideal ratio for production of oxygenated compounds and Fischer-Tropsch synthesis [18,26,31]. However, there are barriers against industrial application of DRM process like coke deposition, sintering of particles and spinel formation [2,11,26,[32][33][34][35][36].…”

“…http Biogas reforming and dry reforming of methane (DRM) is a significant process for hydrogen and syngas production with H 2 /CO molar ratio of 1, which is the ideal ratio for production of oxygenated compounds and Fischer-Tropsch synthesis [18,26,31]. However, there are barriers against industrial application of DRM process like coke deposition, sintering of particles and spinel formation [2,11,26,[32][33][34][35][36]. Based on the past studies, zeolites can produce cobalt spinel because zeolites are porous, hydrated alumina-silicates and have potential to produce CoAl 2 O 4 and Co 2 SiO 4 at the suitable conditions [37,38].…”

“…Based on the past studies, zeolites can produce cobalt spinel because zeolites are porous, hydrated alumina-silicates and have potential to produce CoAl 2 O 4 and Co 2 SiO 4 at the suitable conditions [37,38]. Therefore, many studies focused on production of an active and stable catalyst at last decades [2,4,11,26,32,33,39,40].…”