Electrooxidation of hydrogen peroxide and sodium borohydride on Ni deposited carbon fiber electrode for alkaline fuel cells

Direct peroxide–peroxide fuel cell – Part 2: Effects of conditions on the performance

“…Later on, Yamazaki et al [3] reported a onecompartment H 2 O 2 fuel cell, which exhibited a maximum current density of 2.9 mA cm À2 and an open circuit voltage of around 100 mV. Very recently, Sanli et al [4,5] reported a twocompartment H 2 O 2 fuel cell having the conventional fuel cell configuration. By using Ni as the anodic catalyst with basic H 2 O 2 as fuel, Pt as the cathodic catalyst with acidic H 2 O 2 as oxidant, they achieved a peak power density of 3.8 mW cm À2 and an open circuit voltage of around 0.9 V. However, the performance of the DPPFC is still considerably lower than that of other types of fuel cell.…”

A quadrafunctional electrocatalyst of nickel/nickel oxide embedded N-graphene for oxygen reduction, oxygen evolution, hydrogen evolution and hydrogen peroxide oxidation reactions

“…[40][41][42] Nickel supported nitrogen-doped carbon nanotubes and nickel deposited carbon ber had been demonstrated to exhibit promising electrocatalytic properties for hydrogen peroxide oxidation reaction (HPOR) activity respectively. 23,43 Observing the HPOR activity of nickel deposited carbon material, the HPOR activity of the synthesized Ni/NGr is also explored. The cyclic voltammograms of Ni/NGr in argon saturated 0.1 M NaOH solution without adding any hydrogen peroxide showed a linear feature without any oxidation or reduction peak, and a broad electrooxidation peak of hydrogen peroxide at around 0.96 V associated with a small hydrogen peroxide reduction peak at 0.85 V was observed aer adding 0.5 mM solution of hydrogen peroxide (Fig.…”

A possible future fuel cell: the peroxide/peroxide fuel cell

“…In a recent study, lead(II) sulphate (PbSO 4 ) was shown to be an effective and low-cost cathode catalyst for peroxide reduction. H 2 O 2 is reduced in this system due by the redox couple Pb(II)/Pb(IV) [33][34][35]. It is known that PbSO 4 only shows the catalytic activity towards the H 2 O 2 reduction in acidic media, according to the following reactions:…”

“…Therefore, H 2 O 2 is also a promising fuel, depending on the pH of the solution and the electrocatalyst with which it is combined. Although many different metals can catalyse the reaction of H 2 O 2 disportionation (1–3) and most metals are not oxidatively stable in H 2 O 2 solution, H 2 O 2 can be oxidised by a Ni electrode . Based on the selectivity of the electrocatalysts, electric power can be produced by flowing electrons and generating a proton concentration gradient through the bipolar electrochemical decomposition of H 2 O 2 .…”