Evaluation of alkaline borohydride solutions as the fuel for fuel cell

A Self-Supported Direct Borohydride-Hydrogen Peroxide Fuel Cell System

“…The use of sodium borohydride as a fuel in a direct borohydride fuel cell (DBFC) seems promising as these cells exhibit a higher open-circuit voltage and, consequently, a higher power density in relation to direct alcohol fuel cells [6]. However, there are several technical challenges that need to be addressed in the DBFCs employing air or H 2 O 2 as oxidant [7][8].…”

“…The operational features of the DBFC have been examined employing diagnostic methods with respect to the amounts of oxidant, alkali and acid required for every gram of fuel electro-oxidized. In the literature [6,7,12] several optimization studies with varying concentrations of fuel and oxidant for the DBFCs have been reported with the objective to attain the maximum power density. In the present study, an attempt is made to achieve the optimum fuel and oxidant concentrations to attain maximum operation time.…”

Ammonia Borane Oxidation at Gold Microelectrodes in Alkaline Solutions

“…Boranes and borohydrides are also a nontoxic alternative to formaldehyde and hydrazine. There has also been an increased activity in the analysis of boranes [13,14] or borohydride materials as fuels for fuel cell systems [15][16][17][18][19]. In the optimisation of plating baths or catalysts for the fuel cell systems it is desirable to know the likely oxidation mechanism for the reducing agent or fuel material.…”

Effects of Pd Nanoparticle Size and Solution Reducer Strength on Pd/C Electrocatalyst Stability in Alkaline Electrolyte

“…1,2 Indeed, this technology allows to use a large panel of fuels instead of pure hydrogen, such as sodium borohydride (and its derivatives, like borane-based chemical compounds) or hydrazine, which reduces the fuel transport and storage issues. Moreover, although platinum and palladium catalysts have already shown interesting performances for DLAFC applications, [8][9][10][11][12][13][14][15] because many complex reactions exhibit faster kinetics in alkaline than in acidic medium, DLAFCs are also compatible with the use of platinum-free catalysts. 16,17 These two advantages reduce the economic impact of the DLAFC technology, as recently demonstrated for direct hydrazine hydrate fuel cells.…”