Various nickel doping in commercial Ni–Mo/Al2O3 as catalysts for natural gas decomposition to COx-free hydrogen production

Thermocatalytic decomposition of methane to COx-free hydrogen and carbon over Ni–Fe–Cu/Al2O3 catalysts

“…The comparison of nitrogen adsorption/desorption isotherms indicates that for the catalysts with higher copper contents the hysteresis loop was formed at the higher partial pressure, indicating the presence of the larger pores and the decrease of the specific surface area [8,27]. This observation is in good agreement with the results presented in Table 1.…”

Hydrogen production from ethanol over Ir/CeO2 catalyst: Effect of the calcination temperature

“…Raman spectroscopy is a primarily powerful technique selected to investigate the graphitization degree of carbon species [53]. As shown in Fig.…”

Effect of textural properties of alumina support on the catalytic performance of Ni/Al 2 O 3 catalysts for hydrogen production via methane decomposition

“…2. It is shown that the reflections at 2q ¼ 37.28 , 43.3 , 62.9 , 75.5 and 79.6 are pertaining to the NiO phase (Awadallah et al, 2013a;Li et al, 2004a). Very weak diffraction peak due to a-Al 2 O 3 phase is observed at 2q ¼ 26.5 in case of Ni/ Al 2 O 3 (HS) and/Al 2 O 3 (bulk) catalysts ( Fig.…”

“…However, at high reaction temperature the durability of this catalyst declines rapidly (Li et al, 2000). To improve its durability, some promoters such as Mo or Cu metals (Li et al, 2000;Awadallah et al, 2013a;Monz on et al, 2006;Li et al, 2004a) and structural oxides (Lazaro et al, 2008;Chen et al, 2008) were introduced.…”