The investigation of the electrooxidation of sodium borohydride on various metal electrodes in aqueous basic solutions

Preparation and Performance of Highly Efficient Au Nanoparticles Electrocatalyst for the Direct Borohydride Fuel Cell

“…However, the Au nanoparticles prepared by the conventional method have some extent aggregation and the size of nanoparticels is too big. Thus, the Au electrode demonstrates slow electrode kinetics and gives low power output [12,19,20]. In order to prevent the aggregation and prepare smaller size of Au nanoparticles, the Au nanoparticles were synthesized by a modified NaBH 4 method.…”

Mathematical modelling of direct borohydride fuel cells

“…A value of the exchange current density for the borohydride oxidation reaction on Ni, j BH,ref is not available from the literature. Cyclic voltammetry results [54,55] suggest that the exchange current density is significantly lower than that on Pt/C; Çelikkan et al concluded that the activity of Ni towards borohydride oxidation is extremely limited. The value in Table 1 was, therefore, divided by an arbitrary factor k, which was varied between 1 and 10 6 .…”

The effective bimetallic component of Pd–Au/C for electrochemical oxidation of borohydrides

“…Two reactions compete on the DBFC anode catalyst, one is the oxidation (1) and the other is the hydrolysis of borohydride anions (2), which produce electrons and hydrogen molecules, respectively.…”

“…However, their coulombic efficiencies are inferior to that of Au, so it has been attempted to apply bimetallic Pt-Au and Pd-Au to improve the coulombic efficiency with minimum loss of electron generation capacity [1,2]. On the other hand, these studies on such a bimetallic approach were focused on the voltammetric analysis and cell performance, and to the authors' knowledge, no quantitative comparison of the coulombic efficiencies between bimetallic and monometallic catalysts has been reported yet.…”