Shape and Hydriding Effects of Palladium Nanocatalyst Toward Oxygen Electroreduction Reaction

2020 ◽  
Author(s):  
Mrinal Kanti Kabiraz ◽  
Jeonghyeon Kim ◽  
Sang‐Il Choi
Keyword(s):  
Oxygen Electroreduction ◽  
Oxygen Electroreduction Reaction

Carbon Nanotubes Modified with Oxygen- and Nitrogen-Containing Groups as Perspective Catalysts for the Oxygen Electroreduction Reaction

2020 ◽  
Vol 56 (10) ◽  
pp. 809-820
Author(s):  
V. A. Bogdanovskaya ◽  
M. V. Radina ◽  
O. V. Korchagin ◽  
N. A. Kapustina ◽  
L. P. Kazanskii
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Electroreduction ◽  
Oxygen Electroreduction Reaction

scholarly journals Stability and activity of platinum nanoparticles in the oxygen electroreduction reaction: is size or uniformity of primary importance?

2021 ◽  
Vol 12 ◽  
pp. 593-606
Author(s):  
Kirill O Paperzh ◽  
Anastasia A Alekseenko ◽  
Vadim A Volochaev ◽  
Ilya V Pankov ◽  
Olga A Safronenko ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Structural Characteristics ◽  
Morphological Characteristics ◽  
Carbon Support ◽  
Original Method ◽  
Proton Exchange ◽  
Oxygen Electroreduction ◽  
Negative Effect ◽  
Carbon Catalysts ◽  
Oxygen Electroreduction Reaction

Platinum–carbon catalysts are widely used in the manufacturing of proton-exchange membrane fuel cells. Increasing Pt/C activity and stability is an urgent task and the optimization of their structure seems to be one of the possible solutions. In the present paper, Pt/C electrocatalysts containing small (2–2.6 nm) nanoparticles (NPs) of a similar size, uniformly distributed over the surface of a carbon support, were obtained by the original method of liquid-phase synthesis. A comparative study of the structural characteristics, catalytic activity in the oxygen electroreduction reaction (ORR), and durability of the synthesized catalysts, as well as their commercial analogs, was carried out. It was shown that the uniformity of the structural and morphological characteristics of Pt/C catalysts makes it possible to reduce the negative effect of the small size of NPs on their stability. As a result, the obtained catalysts were significantly superior to their commercial analogs regarding ORR activity, but not inferior to them in terms of stability.

Oxygen electroreduction reaction at bidimensional materials

2020 ◽  
Vol 23 ◽  
pp. 139-144
Author(s):  
Maximina Luis-Sunga ◽  
José Luis Rodríguez ◽  
Gonzalo García ◽  
Elena Pastor
Keyword(s):  
Oxygen Electroreduction ◽  
Oxygen Electroreduction Reaction
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