The role of oxygen vacancies of ABO3 perovskite oxides in the oxygen reduction reaction

2020 ◽  
Vol 13 (5) ◽  
pp. 1408-1428 ◽  
Author(s):  
Qianqian Ji ◽  
Lei Bi ◽  
Jintao Zhang ◽  
Haijie Cao ◽  
X. S. Zhao
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Oxygen Vacancies ◽  
Reduction Reaction ◽  
Electrochemical Reactions ◽  
Abo3 Perovskite ◽  
Energy Conversion And Storage ◽  
Storage Technologies ◽  
And Storage

The oxygen reduction reaction (ORR) is one of the most important electrochemical reactions in energy conversion and storage technologies, such as fuel cells and metal–air batteries.

Ultrafine Mo2C Nanoparticles Embedded in MOF Derived N and P co-doped Carbon Matrix for Efficient Electrocatalytic Oxygen Reduction Reaction in Zinc-Air Batteries

Nanoscale ◽  
2022 ◽  
Author(s):  
Lin Ye ◽  
Yiran Ying ◽  
Dengrong Sun ◽  
Jinli Qiao ◽  
Haitao Huang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Matrix ◽  
Reduction Reaction ◽  
Electrocatalytic Oxygen Reduction ◽  
Energy Conversion And Storage ◽  
Storage Technologies ◽  
And Storage ◽  
Co Doped ◽  
Zinc Air Batteries

Exploring high-activity electrocatalysts for oxygen reduction reaction (ORR) is of great significance for a variety of renewable energy conversion and storage technologies. Here, ultrafine Mo2C nanoparticles assembled in N and...

Multi-functional photocatalytic activity of transition-metal mtetraaza[14]annulene frameworks

2021 ◽  
Author(s):  
Wenqing Zhang ◽  
Hongxia Bu ◽  
Juan Wang ◽  
Lanling Zhao ◽  
Yuanyuan Qu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Renewable Energy ◽  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Reduction Reaction ◽  
Energy Conversion And Storage ◽  
Storage Technologies ◽  
And Storage

Multi-functional catalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are highly desired in the development of renewable energy conversion and storage technologies. Using...

The bifurcation point of the oxygen reduction reaction on Au–Pd nanoalloys

2016 ◽  
Vol 188 ◽  
pp. 257-278 ◽  
Author(s):  
Jakub Staszak-Jirkovský ◽  
Elisabet Ahlberg ◽  
Itai Panas ◽  
David J. Schiffrin
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Bifurcation Point ◽  
Reaction Pathway ◽  
Mechanistic Model ◽  
Direct Synthesis ◽  
Reduction Reaction ◽  
Acid Media ◽  
Energy Conversion And Storage ◽  
And Storage

The oxygen reduction reaction is of major importance in energy conversion and storage. Controlling electrocatalytic activity and its selectivity remains a challenge of modern electrochemistry. Here, first principles calculations and analysis of experimental data unravel the mechanism of this reaction on Au–Pd nanoalloys in acid media. A mechanistic model is proposed from comparison of the electrocatalysis of oxygen and hydrogen peroxide reduction on different Au–Pd ensembles. A H2O production channel on contiguous Pd sites proceeding through intermediates different from H2O2 and OOHσ adsorbate is identified as the bifurcation point for the two reaction pathway alternatives to yield either H2O or H2O2. H2O2 is a leaving group, albeit reduction of H2O2 to H2O can occur by electrocatalytic HO–OH dissociation that is affected by the presence of adsorbed OOHσ. Similarities and differences between electrochemical and direct synthesis from H2 + O2 reaction on Au–Pd nanoalloys are discussed.

The role of iron in the preparation and oxygen reduction reaction activity of nitrogen-doped carbon

2015 ◽  
Vol 51 (12) ◽  
pp. 2450-2453 ◽  
Author(s):  
Dae-Soo Yang ◽  
Min Young Song ◽  
Kiran Pal Singh ◽  
Jong-Sung Yu
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Sources ◽  
Reduction Reaction ◽  
Acidic Media ◽  
Oxygen Reduction Reaction Activity ◽  
Exact Role ◽  
Ordered Mesoporous ◽  
Nitrogen Doped Carbon

The exact role of iron in catalyzing oxygen reduction reaction in both alkaline and acidic media is portrayed with unique platelet ordered mesoporous carbon prepared using Fe-phthalocyanine as iron, nitrogen and carbon sources.

Mechanism of Electrochemical Oxygen Reduction Reaction at Two-Dimensional Pt-doped MoSe2 Material: An Efficient Electrocatalyst

2021 ◽  
Author(s):  
Shrish Nath Upadhyay ◽  
Srimanta Pakhira
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Clean Energy ◽  
Reduction Reaction ◽  
Electrochemical Reactions ◽  
Two Dimensional ◽  
O2 Reduction ◽  
Energy Conversion Systems ◽  
Electrochemical Oxygen

The O2 reduction reaction (ORR) is one promising reaction in clean energy conversion systems such as fuel cells, metal-air batteries, electrochemical reactions, etc. Pt shows excellent electrocatalytic activities for ORR,...

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