An effective combination of oxidation medium, ball milling parameters, and copper additive disperstiy ensuring fast aluminum scrap reaction with high hydrogen yield, was suggested. Different parameters (5, 10, 15 mm steel balls; 1 2 h; unidirectional bidirectional rotation modes) were tested for Al-10 wt.% Cu (50–70 μm) composition. The samples milled 5 (2 h) 10 (1 balls contained undesirable i...

In light of the energy and environment issues, fuel cell vehicles have many advantages, including high efficiency, low-temperature operation, zero greenhouse gas emissions, making them an excellent choice for urban environments where air pollution is a significant problem. The dynamics cells, on other hand, are relatively slow, owing principally to compressor manifold filling. Because these can...

in this paper, cubic nickel oxide nanoparticles were successfully prepared by solid-state thermal decomposition of nickel(ii) macrocyclic schiff-base complex at 450°c for 3 h without employing toxic solvent or surfactant and complicated equipment. nickel(ii) macrocyclic schiff-base complex was synthesized by the reaction of 1,2-bis(2-formyl-3-methoxyphenyl)propane, nicl2•6h2o and 1,3-phenylened...