Readily fabricated NiCo alloy-metal oxide-carbon black hybrid catalysts for the oxygen reduction reactions in the alkaline media

A Mechanistic Overview of the Current Status and Future Challenges in Air Cathode for Aluminum Air Batteries

“…Higher catalytic activity in oxygen chemistry may be produced by combining metal alloy, metal oxide, and carbon in a hybrid composite. [134] The combination of metal (Fe, Co)-metal oxide (MnO x ) and carbon (KB) based compound results in synergic interaction which improves the catalytic activity of the electrocatalyst. [135,136] The metal alloy composite trace-Fe-doped manganese oxide/N-doped KB composites (FeÀ MnO x /N-KB) were made utilizing a simple and scalable method that involved one-pot hydrothermal treatment and a light calcination step.…”

“…Higher catalytic activity in oxygen chemistry may be produced by combining metal alloy, metal oxide, and carbon in a hybrid composite [134] . The combination of metal (Fe, Co)‐metal oxide (MnO x ) and carbon (KB) based compound results in synergic interaction which improves the catalytic activity of the electrocatalyst [135,136] …”

Performance and application of carbon-based electrocatalysts in direct methanol fuel cell

“…A catalyst comprising of NiCo alloy, layered perovskite oxide Pr 0.95 Ba 0.95 Mn 1.8 O 5+δ and varying amount of Ketjen Black EC 300J (EC) has been prepared by one pot pyrolysis method. 72 The insertion of appropriate amount of EC to the catalyst material can enhance electrocatalytic activity because of high specific surface area, good dispersion of Pr 0.95 Ba 0.95 Mn 1.8 O 5+δ and NiCo alloy on EC support, high conductivity and synergistic interaction among EC, Pr 0.95 Ba 0.95 Mn 1.8 O 5+δ and NiCo alloy. However large amount of EC may reduce ORR activity of the electrocatalyst due to decrease in number of reaction sites.…”