High purity hydrogen produced by hydrolysis of sodium borohydride can be used directly in (proton exchange membrane) PEM fuel cells for portable devices and automotive applications. The advantages of high storage capacity, quickly start, controllable reaction and mild condition, hydrogen...

Underground coal gasification (UCG) is a potential clean coal technology which converts coal into combustible gas in situ. The syngas produced from the UCG process using dry air contains more steam, tar and higher hydrocarbons compared to the conventional gasifiers. The focus of the present work...

Hydrogen generation performance of solid-state AlLi/NaBH4 mixture activated by CoCl2 solution was evaluated in the present work. Hydrogen generation performance can be regulated by AlLi/NaBH4 weight ratio, Li content, CoCl2 concentration, and hydrolysis temperature, among others. 1 g Al-20 wt%...

This study evaluated hydrogen generation through the hydrolysis of an Al/NaBH4/Co/NaAlO2 system. Hydrogen generation performance can be altered by changing the Al/NaBH4 mass ratios, Co amount and NaAlO2 concentration. The optimized composite can achieve a hydrogen yield of more than 90% within...

A new process to obtain hydrogen from highly activated Al–Li–Bi alloys in water is described. The alloys had good hydrolytic properties at 298 K, and the optimized composite yielded 1340 mL hydrogen/g Al with 100% efficiency and achieved a maximum hydrogen generation rate of 988 mL/min g...

Ferromagnetic elements Fe, Ni and Co were immobilized on the porous SiO2 to catalyze the hydrogen generation from aqueous alkaline NaBH4 (sodium borohydride). The porous SiO2 was prepared by silica-surfactant self-assembly and the ferromagnetic catalyst was prepared by chemical reduction. The...

In this study, a new novel bench-scale (5 L) tubular photocatalytic reactor was developed and its feasibility studies were conducted for optimizing the operating variables, namely concentration of sulfide ion, concentration of sulfite ion, pH, catalyst concentration, lamp power, volume of...

This paper presents the exergoeconomic analysis of a novel process generating electric energy and hydrogen. Coal and high-temperature heat are used as input energy to the process. The process is a true “zero-emission process” because (a) no NOX is formed during coal combustion with sulfuric...

OL (Oleic acid)–Cobalt–Lanthanum–Zirconium–Boron nanoparticle was synthesized by chemical reduction of chloride salts of metals in the presence of oleic acid as stabilizing agent. The obtained materials were characterized by XRD (X-ray diffraction), TEM (Transmission electron...