Carbon supported palladium hollow nanospheres as anode catalysts for direct borohydride-hydrogen peroxide fuel cells

Deposition of Poly(diphenylamine-co-3-aminobenzonitrile)/Palladium Nanocomposite Film and Evaluation of Electrocatalytic Activity Toward Borohydride Oxidation

“…It was reported that carbon supported Pd hollow nanospheres used as the electrocatalyst for borohydride oxidation and assigned a 4e − reaction mechanism to the BH − 4 oxidation. 9 Importantly, the peak current in the potential region between −0.8 V and +0.4 V increases on increasing the concentration of BH − 4 and which is much higher at P(DPA-co-3ABN)/Pd-ME (Fig. 5(A), curves a to c) as compared to PDPA/Pd-ME (Fig.…”

“…Studies have been performed using different molar ratios of BH − 4 to OH − . 9 34 Atwan et al 35 used a molar ratio of 1:2 (BH − 4 to OH − . In our studies, to demonstrate the catalytic efficiency of the new P(DPA-co-3ABN)/Pd catalyst, we have used the molar ratio BH − 4 to OH as 1:1.…”

“…The NaBH 4 oxidation was accompanied by the formation of small bubbles on the electrode surface and can be related to the oxidation reaction of BH − 4 , involving the BH 3 OH − intermediate. 8 In an another report, Yi et al 9 prepared carbon supported Pd hollow nanospheres and used as the anode electrocatalyst for BH − 4 oxidation. However, reports on the use of noncarbon support based Pd electrocatalyst for BH − 4 oxidation has not been reported so far.…”

The Performance of a Direct Borohydride/Peroxide Fuel Cell Using Graphite Felts as Electrodes

“…To improve the electro-oxidation of borohydride, many published studies have investigated the development of anode catalytic materials, including Pt [1][2][3], Pd [3][4][5][6], Au [7][8][9], and Ni [10,11], unlike studies of solid oxide fuel cells (SOFCs), focusing on the cathode catalysts [12,13]. In most of those studies, the catalyst was coated on either carbon paper/cloth or a membrane that was sandwiched between two pieces of carbon paper or cloth as a membrane electrode assembly (MEA), which is the same structure as that used by MEAs for PEMFCs.…”

Carbon supported Cu-Pd nanoparticles as anode catalyst for direct borohydride-hydrogen peroxide fuel cells

“…In the past few years, various materials have been evaluated as anode catalysts for DBFCs, such as noble metals including Pt [7][8][9][10][11], Au [10,[12][13][14][15][16][17], Pd [18][19][20] and Ag [21][22][23][24], non-noble metals such as…”