The effect of boron doping into Co-C-N and Fe-C-N electrocatalysts on the oxygen reduction reaction

Effect of boron–nitrogen bonding on oxygen reduction reaction activity of BN Co-doped activated porous carbons

“…It is striking that the doping contents of the B and N atoms are signicantly increased when they are co-doped, despite the use of the same amount of precursors as employed in the singledoping cases. This is likely due to the binding of B atoms with N atoms, as observed in a prior study, 27 which demonstrated that the addition of boron increases the nitrogen doping contents in thin lm samples. Our experiment result in Table 1 shows the same trend of an increasing doping amount when B and N are doped simultaneously.…”

Effect of temperature on the oxygen reduction reaction kinetic at nitrogen-doped carbon nanotubes for fuel cell cathode

“…Values of oxygen concentration and diffusivity; and solution viscosity at 0.5 M H 2 SO 4 , 25 C and 1 atm O 2 are C O2 ¼ 1.1 Â 10 À6 mol/cm 3 [17], D O2 ¼ 1.4 Â 10 À5 cm 2 /s [17] and v ¼ 0.01 cm 2 /s [17]. It is worth noting that the data obtained based on equation (4) in this study has not accounted for the change in the values for dissolved oxygen concentration and diffusion coefficient of oxygen as the main focus here is to understand the ability of metal-free NCNT to function at elevated temperature in a more general way.…”

“…However, a significant drawback of transition metals catalysts is their low stability in PEMFC because of their tendency to dissolve in electrolyte membrane over a long period [3]. Metal-free catalysts such as nitrogen-doped or boron-doped carbon-based compound have also shown reasonable activity although they are still far lower than the platinum-based catalysts [2,4]. Past studies although still unclear, has revealed some possible mechanisms and active sites on organic compound [5e7].…”

Inorganic thin-film combinatorial studies for rapidly optimising functional properties

“…The development of more rapid analysis techniques, capable of screening the physical and functional properties of combinatorial films, has increased the breadth of investigation. Combinatorial methods have been applied in bandgap, [13][14][15][16] ferro/di-electric, 12,[17][18][19][20][21][22][23] fuel cell anode/cathode, [24][25][26][27][28][29][30] H 2 storage, [31][32][33][34] hardness, [35][36][37][38] Li battery electrode, [39][40][41] luminescence, 11,[42][43][44][45][46][47][48][49][50][51][52] ferro-magnetic, 10,[53][54][55][56][57] photocatalytic, [58]…”