40 documents found, page 1 of 4

Scale-up of a clean hydrogen production system through the hydrolysis of sodium...

ABSTRACT: Hydrogen is considered a promising energy vector with the potential to replace fossil fuels, and sodium borohydride serves as an effective energy carrier capable of releasing hydrogen (H2) for off-grid applications. However, the hydrolysis of sodium borohydride has only matured at laboratory-scale. Therefore, the scale-up of a laboratory reactor was designed and manufactured to study the effect of lar...

Sustainable Additives for the Production of Hydrogen via Sodium Borohydride Hyd...

ABSTRACT: Finding stable solutions for hydrogen storage is one of the main challenges to boosting its deployment as an energy vector and contributing to the decarbonization of the energy sector. In this context, sodium borohydride (NaBH4) has been largely studied as a hydrogen storage material due to its significant advantages, such as low pressure, stability, and high hydrogen storage density. The development ...

Cyclic voltammetry study of a yeast-based microbial fuel cell

Microbial fuel cells (MFCs) using yeasts are known to produce less energy than those using bacteria. However, yeasts offer a plethora of advantages that can be used to MFCs profit. In this work, the electrochemical behavior of Zygosaccharomyces bailii was investigated by cyclic voltammetry, using a synthetic winery wastewater. The voltammograms revealed different oxidation-reduction peaks that could be associat...

Hydrogen production from sodium borohydride: the role of Ni-Ru supported catalysts

ABSTRACT: Nowadays, the concerns about greenhouse-gas emissions from fossil fuel sources are generating a demand for clean and abundant energy. Since early 2000’s the chemical hydrides, in particular sodium borohydride (NaBH4), hydrolysis reaction attracted much attention as a hydrogen carrier due to its high hydrogen storage capacity, safe handling and fast kinetics of hydrogen release. Although, during the la...

Hydrogen production and storage from hydrolysis of sodium borohydride: study of...

ABSTRACT: Hydrogen is one of the most valuable alternatives to fossil fuels to produce energy. However, although it is abundant in the universe and has the highest gravimetric density, it is difficult to obtain and store in its molecular form and in safe conditions. One alternative to the conventional hydrogen storage is to use the high hydrogen content (10.66 wt. %) of sodium borohydride to, simultaneously, pr...

Hydrogen production and storage from hydrolysis of sodium borohydride : study o...

Development and performance analysis of a metallic passive micro-direct methano...

Due to the growing interest on miniaturization for application on portable devices, the Micro Direct Methanol Fuel Cells (Micro-DMFC) proved to have great benefits. Passive fuel cells have extra advantages leading to less complex and cheaper systems. In the present work, an experimental study on the performance of a passive Micro-DMFC with an active area of 2.25 cm2 working at ambient conditions is described. S...

Experimental and modeling studies of a micro direct methanol fuel cell

The Direct Methanol Fuel Cell (DMFC) has attracted much attention due to its potential applications as a power source for transportation and portable electronic devices. Based on the advantages of the scaling laws, miniaturization promises higher efficiency and performance of power generating devices and the MicroDMFC is therefore an emergent technology. In this work, a set of experiments with a MicroDMFC of 2....

Review on micro-direct methanol fuel cells

Fuel cells have unique technological attributes: efficiency, minimization of moving parts and low emissions. The Direct Methanol Fuel Cell (DMFC) has attracted much attention due to its potential applications as a power source for transportation and portable electronic devices. With the advance of micromachining technologies, miniaturization of power sources became one of the trends of evolution of research in ...

Review on micro-direct methanol fuel cells

Fuel cells have unique technological attributes: efficiency, minimization of moving parts and low emissions. The Direct Methanol Fuel Cell (DMFC) has attracted much attention due to its potential applications as a power source for transportation and portable electronic devices. With the advance of micromachining technologies, miniaturization of power sources became one of the trends of evolution of research in ...