Catalytic Properties of Transition Metal–N4 Moieties in Graphene for the Oxygen Reduction Reaction: Evidence of Spin-Dependent Mechanisms

2013 ◽  
Vol 117 (19) ◽  
pp. 9812-9818 ◽  
Author(s):  
Walter Orellana
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Properties ◽  
Reduction Reaction

Activating Transition Metal Dichalcogenides Monolayers as Efficient Electrocatalysts for Oxygen Reduction Reaction via Single Atom Doping

2021 ◽  
Author(s):  
Shufang Tian ◽  
Qing Tang
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Properties ◽  
Transition Metal Dichalcogenides ◽  
Reduction Reaction ◽  
Single Atom ◽  
Metal Dichalcogenides

Recent studies in 2D transition-metal-dichalcogenides (TMDs) for electrocatalytic applications have mainly concentrated on MoS2, while the catalytic properties of the majority of TMDs with other metal compositions remain uncovered. This...

scholarly journals Probing the activity of transition metal M and heteroatom N4 co-doped in vacancy fullerene (M–N4–C64, M = Fe, Co, and Ni) towards the oxygen reduction reaction by density functional theory

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 3174-3182
Author(s):  
Siwei Yang ◽  
Chaoyu Zhao ◽  
Ruxin Qu ◽  
Yaxuan Cheng ◽  
Huiling Liu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Density Functional ◽  
Reduction Reaction ◽  
Functional Theory ◽  
Co Doped

In this study, a novel type oxygen reduction reaction (ORR) electrocatalyst is explored using density functional theory (DFT); the catalyst consists of transition metal M and heteroatom N4 co-doped in vacancy fullerene (M–N4–C64, M = Fe, Co, and Ni).

scholarly journals Transition Metal (Fe, Co, Ni) Nanoparticles on Selective Amino-N-Doped Carbon as High-Performance Oxygen Reduction Reaction Electrocatalyst

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 742 ◽  
Author(s):  
Seonghee Kim ◽  
Shuhei Kato ◽  
Takahiro Ishizaki ◽  
Oi Lun Li ◽  
Jun Kang
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
Reduction Reaction ◽  
Metal Nanoparticle ◽  
Superior Performance ◽  
Pt Catalyst ◽  
Hydrogen Electrode ◽  
Electrochemical Testing

Metal-air batteries are attracting increasing attention as a superior renewable energy conversion device due to their high performance and strong potential. However, the high cost and low stability of the current Pt catalyst is the main obstacle preventing wide industrial application. In this work, we applied a plasma process to fabricate aniline and a transition metals electrode (Fe, Co, Ni) as the carbon-nitrogen and the metal nanoparticle (NP) precursors, respectively, for selective metal/amino-N-doped carbon catalysts. All three as-synthesized catalysts exhibited dominant amino-N as the major C–N bonding state. In electrochemical testing, Co/amino-N-doped carbon showed positive E1/2 potential (0.83 V vs. Reversible Hydrogen Electrode (RHE)). In addition, the calculated electron transfer number (n) of Co/amino-N-doped carbon at 0.5 V vs. RHE was 3.81, which was only slightly less than that of commercial Pt/C (3.97). This superior performance of transition metal/amino-N-doped carbon promotes it as an economical oxygen reduction reaction (ORR) electrocatalyst to replace expensive Pt/C in metal-air batteries.

Ternary Transition Metal Oxide Nanoparticles with Spinel Structure for the Oxygen Reduction Reaction

2015 ◽  
Vol 2 (7) ◽  
pp. 982-987 ◽  
Author(s):  
Rou Jun Toh ◽  
Alex Yong Sheng Eng ◽  
Zdenek Sofer ◽  
David Sedmidubsky ◽  
Martin Pumera
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Spinel Structure ◽  
Metal Oxide Nanoparticles ◽  
Transition Metal Oxide ◽  
Reduction Reaction ◽  
Oxide Nanoparticles
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