Investigation of the performance of a direct borohydride fuel cell with low Pt/C catalyst loading under different operating conditions

Fabrication of an anion exchange membrane with textured structure for enhanced performance of direct borohydride fuel cells

“…Oxygen molecules react with water molecules and electrons to generate hydroxyl (eqn (1)) with the help of a catalyst on the cathode/membrane interface, which is also known as the three-phase boundary in DBFCs. 5 Then, the hydroxyl is transferred to the anode via AEM and reacts with the borohydride to generate electrons, which transport to the cathode to continue the whole reaction (eqn (2)). 5 The rate of oxygen reduction reaction (ORR) is highly dependent on the supply of oxygen and electron, the departing of hydroxyl and the activity of a catalyst.…”

“… 5 Then, the hydroxyl is transferred to the anode via AEM and reacts with the borohydride to generate electrons, which transport to the cathode to continue the whole reaction ( eqn (2) ). 5 The rate of oxygen reduction reaction (ORR) is highly dependent on the supply of oxygen and electron, the departing of hydroxyl and the activity of a catalyst. It is universally acknowledged that the rate of ORR is the controlling step of the whole reaction in fuel cells.…”

Study on a direct hydrazine borane fuel cell based on an anion exchange membrane

“…Among BH/NH-based fuels, hydrazine borane (N 2 H 4 BH 3 ) achieves an energy density of 9947 W h kg −1 , 7 which is higher than that for sodium borohydride, 4,8,9 hydrazine 10,11 and ammonia borane, 12 and has attracted much attention. 13–18 N 2 H 4 BH 3 has been investigated to release their energy by hydrogen evolution via pyrolysis 19 and hydrolysis 15,20 routes.…”

Fabrication of Efficient Gold−Nickel-Supported Titania Nanotube Electrocatalysts for Sodium Borohydride−Hydrogen Peroxide Fuel Cells

“…Despite the high price of borohydrides, manifested as either alternative anodic fuels (direct borohydride fuel cells (DBFCs)) or alternative hydrogen sources (indirect borohydride fuel cells (IDBFCs)), borohydride fuel cells became the subject of many current research studies once again [1][2][3][4][5][6][7][8]. Concerning other types of fuel cells, DBFCs are of particular value for their high theoretical capacity and specific energy density, i.e., 5.6 Ah/g and 9.3 Wh/g, respectively.…”