Characterization of Ni-Cu-based catalysts for multi-fuel steam reformer

Ni-Based Bimetallic Catalysts for Hydrogen Production Via (Sorption-Enhanced) Steam Methane Reforming

“…The hydrogen uptake amount, metal dispersion rate, metallic surface area, and crystallite size of the catalysts obtained by H 2 chemisorption analysis are summarized in Table 3. The highest H 2 uptake amount was obtained by Ni/Al 2 O 3 with a metal dispersion rate of 1.07 %, which is on a similar level as other alumina-supported Ni catalysts synthesized by the wet-impregnation method [25]. Compared with Ni/Al 2 O 3 , all bimetallic catalysts showed a lower H 2 uptake amount.…”

Catalytic performance of Ni-Cu/Al2O3 for effective syngas production by methanol steam reforming

“…The last peak is related to a strong interaction of NiO with the support. The difference in the position of reduction peaksreported here is related to the fact that the temperature of the reduction peaks strongly depend on the particle dimension and the interaction strength between metal particles and the support [15]. Fig.7.…”

“…According to the stoichiometry of the reactions, complete steam reforming of methanol notwithstanding equilibrium limitations is predicted using highly active and selective catalyst to produce hydrogen and carbon dioxide at a reforming temperature of (200-300°C) and at atmospheric pressure [7,11,12]. The bimetallic effect of catalyst for methane steam reforming was studied [13][14][15].Ni-Cu based catalysts were discussed in the literature for steam reforming of both ethanol [16][17][18] and methanol [19][20][21]. Ni-Cu supported on carbon nanotubes have been studied recently [19]and it was observed that alloy Ni with Cu could weaken the adsorption between Ni and hydrogen thus enhancing the catalyst activity due to the increase of methanol contact with Ni particles.…”

High-Throughput Screening of Sulfur-Resistant Catalysts for Steam Methane Reforming Using Machine Learning and Microkinetic Modeling

“…The stability of bimetallic Ni–Cu catalysts was evaluated in terms of their carbon resistance and long-term stability. Khzouz et al , carried out a 20-h SMR test with bimetallic Ni–Cu/Al 2 O 3 catalysts, and no significant decrease in hydrogen yield was observed. This was attributed to the stabilizing effect from NiCu alloy formation, where the large Ni particles prone to sintering and carbon deposition were diluted by the Cu atoms.…”