scholarly journals Enhanced oxygen reduction reaction activity and durability of Pt nanoparticles deposited on graphene-coated alumina nanofibres

2021 ◽  
Vol 3 (8) ◽  
pp. 2261-2268
Author(s):  
Sajid Hussain ◽  
Nadezda Kongi ◽  
Alexey Treshchalov ◽  
Tauno Kahro ◽  
Mihkel Rähn ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Alumina Nanofibers ◽  
Orr Activity

High ORR activity and durability of Pt nanoparticles deposited on graphenated alumina nanofibers by plasma-assisted synthesis and sonoelectrochemical methods are demonstrated.

An efficient cluster model to describe the oxygen reduction reaction activity of metal catalysts: a combined theoretical and experimental study

2018 ◽  
Vol 20 (41) ◽  
pp. 26675-26680 ◽  
Author(s):  
Liting Cui ◽  
Haining Wang ◽  
Sian Chen ◽  
Jin Zhang ◽  
Yan Xiang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Cluster Model ◽  
Dft Calculation ◽  
Reduction Reaction ◽  
Metal Catalysts ◽  
Oxygen Reduction Reaction Activity ◽  
Metal Atoms ◽  
Orr Activity

An efficient model containing only 7 metal atoms was proposed to describe the ORR activity of metal catalysts by DFT calculation.

Fast prediction of oxygen reduction reaction activity on carbon nanotubes with a localized geometric descriptor

2020 ◽  
Vol 22 (2) ◽  
pp. 890-895 ◽  
Author(s):  
Kunran Yang ◽  
Jeremie Zaffran ◽  
Bo Yang
Keyword(s):  
Carbon Nanotubes ◽  
Structural Optimization ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Orr Activity ◽  
Fast Prediction

By using the pyramidalization angle as a localized geometric descriptor for oxygen reduction reaction (ORR) activity of carbon nanotubes (CNTs), we show the ORR activity of these systems can be readily predicted with mere structural optimization of CNTs.

scholarly journals Oxygen reduction reaction activity of an iron phthalocyanine/graphene oxide nanocomposite

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15927-15932
Author(s):  
Kenichiro Irisa ◽  
Kazuto Hatakeyama ◽  
Soichiro Yoshimoto ◽  
Michio Koinuma ◽  
Shintaro Ida
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Iron Phthalocyanine ◽  
Oxygen Reduction Reaction Activity ◽  
Orr Activity

We demonstrate from both experimental and theoretical viewpoints that an iron phthalocyanine/graphene oxide nanocomposite directly synthesized on electrode exhibits high ORR activity.

Alloy-composition-dependent oxygen reduction reaction activity and electrochemical stability of Pt-based bimetallic systems: a model electrocatalyst study of Pt/PtxNi100−x(111)

2018 ◽  
Vol 20 (17) ◽  
pp. 11994-12004 ◽  
Author(s):  
Naoto Todoroki ◽  
Ryutaro Kawamura ◽  
Masato Asano ◽  
Ren Sasakawa ◽  
Shuntaro Takahashi ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Alloy Composition ◽  
Reduction Reaction ◽  
Electrochemical Stability ◽  
Oxygen Reduction Reaction Activity ◽  
Bimetallic Systems ◽  
Orr Activity

The oxygen reduction reaction (ORR) activity and electrochemical stability of well-defined n monolayer (ML)-Pt/PtxNi100−x(111) (n = 2 and 4; x = 75, 50, and 25) model electrocatalyst surfaces were investigated in this study.

scholarly journals Structural disordering of de-alloyed Pt bimetallic nanocatalysts: the effect on oxygen reduction reaction activity and stability

2015 ◽  
Vol 17 (42) ◽  
pp. 28044-28053 ◽  
Author(s):  
Ioannis Spanos ◽  
Knud Dideriksen ◽  
Jacob J. K. Kirkensgaard ◽  
Stanislav Jelavic ◽  
Matthias Arenz
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Structural Integrity ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Orr Activity ◽  
Bimetallic Nanocatalysts ◽  
Structural Disordering

We show how alloying and excessive de-alloying affect ORR activity and the structural integrity of PEMFC nanocatalysts.

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