Effects of the cobalt content of catalysts prepared from hydrotalcites synthesized by ultrasound-assisted coprecipitation on hydrogen production by oxidative steam reforming of ethanol (OSRE)

A review on recent advances in hydrogen energy, fuel cell, biofuel and fuel refining via ultrasound process intensification

“…production rate = 1582 ml/min/g Al, and mean hydrogen rate was 2.5 (at 180 W), and 3 (at 216 W) folds more than that reported when US was not used. Indirect use of ultrasound 2013–2017 [134] , [135] , [136] Ultrasound utilised to obtain catalyst for its application in reforming for hydrogen production CO 2 reforming of methane using Ni/ZSM-5 nanocatalyst; Parameters of US − 20 kHz, 90 W, 45 min Ni (8% (wt/wt))/ZSM-5 at 850 0 C reported highest yield − 67% H 2 and 80% CO, and the conversion was 82% CH 4 and 80% CO 2 . Stability for 24 h was reported.…”

Hydrogen Production Performances via Steam Reforming over Hydrotalcite Derived Catalyst: A Sustainable Energy Production Review

“…However, ultrasound treatment caused surface defects and high basicity of the catalyst favored side reaction that might reduce H 2 yield. Ultrasound-assisted co-precipitation method was also utilized by Espitia-Sibaja and co-workers [142] to prepare the Co-Mg/Al catalyst from HT-like precursor for oxidative ethanol steam reforming. The Co-Mg/Al catalyst with 10% to 15% Co content exhibited the best performance.…”

Oxidative steam reforming of ethanol over MxLa2−xCe1.8Ru0.2O7−δ (M = Mg, Ca) catalysts: effect of alkaline earth metal substitution and support on stability and activity

“…40 Huang et al investigated the NiAl 2 O 4 -FeAl 2 O 4 spinel oxide structure as a catalyst for the ATR of ethanol; it showed an optimized hydrogen selectivity of $109% at 600 C. 41 Espitia-Sibaja et al investigated layered oxide hydrotalcites containing CoMgAl mixed ions for OSRE, which showed that the amount of Co 3+ species catalysts affected the content of the products. 42 Pirez and Fang et al used the catalysts CeNiH z O y and Mg 2 AlNi x H z O y nano-oxyhydride materials in OSRE that produced about a 45% yield of hydrogen with low activation energy. 43,44 Our group reported on the metal substituted pyrochlorebased catalysts that display enhanced catalytic performance and stability for OSRE.…”