Influence of propylene glycol/nitrates ratio on microwave-assisted combustion synthesis of CuO-ZnO-Al2O3 nanocatalyst: Structural and catalytic properties toward hydrogen production from methanol

Comparative study on photocatalytic activity of transition metals (Ag and Ni)-doped ZnO nanomaterials synthesized via sol–gel method

“…Various methods have been applied to synthesize doped ZnO, such as sol-gel [7][8][9], hydrothermal [10][11][12], combustion [13][14][15] and chemical vapour deposition [16,17]. However, all of these methods except sol-gel require severe reaction conditions such as high temperature, sophisticated techniques, high purity of gas, adjustable gas flow rate, expensive raw materials and so on.…”

Hydrogen production by steam reforming of methanol by Cu–Zn/CeAlO3 perovskite

“…25 The urea-nitrate combustion method is also exploited to synthesize CuO/ZnO/Al 2 O 3 catalysts promoted by CeO 2 26 and ZrO 2 27 for SRM. Ajamein et al 28 employed propylene glycol as an organic fuel in microwave-aided solution combustion synthesis and assessed the influence of fuel to oxidizer ratio in SRM.…”

Nb2O5 nanoparticles obtained by microwave assisted combustion synthesis under different conditions

“…The combustion synthesis is a redox reaction that involves an oxidant (normally nitrates) and an organic fuel (such as urea and citric acid) in solution. The highly exothermic and self-sustaining reaction quickly produces crystalline, nanosized, pure and homogeneous powders, without the need for further steps [14][15][16][17]. Some parameters of the synthesis, such as oxidant and fuel content, fuel type, and heating environment, will influence the final characteristics of the product [17,18].…”

“…The highly exothermic and self-sustaining reaction quickly produces crystalline, nanosized, pure and homogeneous powders, without the need for further steps [14][15][16][17]. Some parameters of the synthesis, such as oxidant and fuel content, fuel type, and heating environment, will influence the final characteristics of the product [17,18]. In microwave assisted combustion synthesis, the electromagnetic radiation heats the reactants until they reach the ignition temperature, which represents the start of the combustion reaction.…”

“…In general, MACS is a fast, simple and cheap process that requires low energy consumption and relatively simple equipment when compared to other conventional methods [15,[17][18][19]. Therefore, the goal of the present study is to obtain crystalline and pure Nb 2 O 5 nanoparticles using microwave assisted combustion synthesis and to evaluate the concentration of fuel and oxidant that optimizes the synthesis conditions.…”