scholarly journals Iodine Doped Graphene for Enhanced Electrocatalytic Oxygen Reduction Reaction in PEM Fuel Cell Applications

2018 ◽  
Author(s):  
Adriana Marinoiu ◽  
Elena Carcadea ◽  
Mircea Raceanu ◽  
Mihai Varlam
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pem Fuel Cell ◽  
Reduction Reaction ◽  
Electrocatalytic Oxygen Reduction ◽  
Doped Graphene

Pt Surface Oxides and Oxygen Reduction Reaction Kinetics Under Dynamic PEM Fuel Cell Operation

2021 ◽  
Vol MA2021-02 (36) ◽  
pp. 1018-1018
Author(s):  
Venkata Yarlagadda ◽  
Wenbin Gu ◽  
Srikanth Arisetty ◽  
Anusorn Kongkanand
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Reaction Kinetics ◽  
Oxygen Reduction ◽  
Pem Fuel Cell ◽  
Reduction Reaction ◽  
Surface Oxides ◽  
Fuel Cell Operation

Catalytic Activity of Silver Metal Supported on Doped Graphene in Alkaline Medium for Oxygen Reduction Reaction

2019 ◽  
Vol 1155 ◽  
pp. 55-69
Author(s):  
Nabila A. Karim ◽  
Nor Shahirah Shamsul ◽  
Siti Kartom Kamarudin
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Adsorption Energy ◽  
Reduction Reaction ◽  
Pt Catalyst ◽  
Nitrogen And Phosphorus ◽  
Doped Graphene ◽  
Phosphorus Doped ◽  
Silver Metal

The platinum (Pt) degradation, poisoning and carbon corrosion in acidic fuel cell has led to explore the research in alkaline fuel cell. However, the high cost of Pt has brought a lot of studies to find replacement for Pt catalyst. Due to that, silver metal is selected as non-Pt catalyst and supported by the nitrogen and phosphorus-doped on graphene for oxygen reduction reaction in alkaline medium. The adsorption energy and mechanism of the oxygen reduction reaction is studied by using density functional theory (DFT) calculation. The support catalyst of graphene is doped with three atom nitrogen and phosphorus namely as N3 and P3, respectively. The Ag supported on N3 and P3 are tested on O2, OOH, O and OH species. There are two types adsorption of O2 on N3 and P3 which is side and end-on adsorption configuration. The N3-Ag has similar adsorption energy for both configurations, but P3-Ag has low adsorption energy by end-on adsorption configuration. The effect of doped atoms on graphene also have been tested on O2, OOH, O and OH species. The result shows that increasing nitrogen doping atom has decreased the adsorption energy of O2 and vice versa on phosphorus atoms. A single phosphorus doping atom on graphene has shown the lowest adsorption energy, but the end-on configuration of P3-Ag has shown most stable adsorption. The schematic free energy profile shows that both N3-Ag and P3-Ag have high possibilities to be followed in oxygen reduction reaction mechanism but P3-Ag has advantage due to stable adsorption as non-Pt catalyst. The Ag metal supported on nitrogen and phosphorus-doped graphene show promising result to be a catalyst in alkaline fuel cell.

scholarly journals Nanostructured Pt-alloy electrocatalysts for PEM fuel cell oxygen reduction reaction

2010 ◽  
Vol 39 (6) ◽  
pp. 2184 ◽  
Author(s):  
Yonghong Bing ◽  
Hansan Liu ◽  
Lei Zhang ◽  
Dave Ghosh ◽  
Jiujun Zhang
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pem Fuel Cell ◽  
Reduction Reaction ◽  
Pt Alloy ◽  
Nanostructured Pt

Ta and Nb co-doped TiO2 and its carbon-hybrid materials for supporting Pt–Pd alloy electrocatalysts for PEM fuel cell oxygen reduction reaction

2014 ◽  
Vol 2 (32) ◽  
pp. 12681-12685 ◽  
Author(s):  
Yan-Jie Wang ◽  
David P. Wilkinson ◽  
Vladimir Neburchilov ◽  
Chaojie Song ◽  
Alan Guest ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hybrid Materials ◽  
Electrocatalytic Activity ◽  
Pem Fuel Cell ◽  
Reduction Reaction ◽  
Doped Tio2 ◽  
Pd Alloy ◽  
Co Doped

The addition of Ta0.01Nb0.03Ti0.96O2 improves the electrocatalytic activity and stability of carbon for the oxygen reduction reaction.

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