Transition Metal Oxides for the Oxygen Reduction Reaction: Influence of the Oxidation States of the Metal and its Position on the Periodic Table

ChemPhysChem ◽  
2015 ◽  
Vol 16 (16) ◽  
pp. 3527-3531 ◽  
Author(s):  
Rou Jun Toh ◽  
Zdeněk Sofer ◽  
Martin Pumera
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Transition Metal Oxides ◽  
Periodic Table ◽  
Reduction Reaction ◽  
Oxidation States

scholarly journals Binary and Ternary 3D nanobundles Transition Metal Oxides Functionalized Carbon Xerogels as Electrocatalysts toward Oxygen Reduction Reaction

2020 ◽  
Author(s):  
Abdalla Abdelwahab ◽  
Francisco Carrasco-Marín ◽  
Agustín F. Pérez-Cadenas
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Transition Metal Oxides ◽  
Reduction Reaction ◽  
Excellent Performance ◽  
Carbon Xerogel ◽  
Carbon Xerogels

This work describes preparation of novel binary and ternary transition metal oxides functionalized carbon xerogel. The characterization data reveals that the functionalized metal oxides are in the form of nanobundles with different lengths and widths. these prepared electrocatalysts show excellent performance as electrocatalysts for oxygen reduction reaction.

scholarly journals Binary and Ternary 3D nanobundles Transition Metal Oxides Functionalized Carbon Xerogels as Electrocatalysts toward Oxygen Reduction Reaction

2020 ◽  
Author(s):  
Abdalla Abdelwahab ◽  
Francisco Carrasco-Marín ◽  
Agustín F. Pérez-Cadenas
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Transition Metal Oxides ◽  
Reduction Reaction ◽  
Excellent Performance ◽  
Carbon Xerogel ◽  
Carbon Xerogels

This work describes preparation of novel binary and ternary transition metal oxides functionalized carbon xerogel. The characterization data reveals that the functionalized metal oxides are in the form of nanobundles with different lengths and widths. these prepared electrocatalysts show excellent performance as electrocatalysts for oxygen reduction reaction.

Ti3C2 supported transition metal oxides and silver as catalysts toward efficient electricity generation in microbial fuel cell

2021 ◽  
Author(s):  
Xinghong Wang ◽  
Xiaobo Gong ◽  
Liu Chen ◽  
Siyu Li ◽  
Jinlin Xie ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Transition Metal Oxides ◽  
Electricity Generation ◽  
Reduction Reaction ◽  
Air Cathode

Oxygen reduction reaction (ORR) has been regarded as a bottleneck in air-cathode microbial fuel cell (MFC). Herein, transition metal oxides and silver were used to combine with conductive and hydrophilic...

Transition metal oxide-based oxygen reduction reaction electrocatalysts for energy conversion systems with aqueous electrolytes

2018 ◽  
Vol 6 (23) ◽  
pp. 10595-10626 ◽  
Author(s):  
Yejian Xue ◽  
Shanshan Sun ◽  
Qin Wang ◽  
Zhenghao Dong ◽  
Zhaoping Liu
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Electric Vehicles ◽  
Transition Metal Oxides ◽  
Reduction Reaction ◽  
Aqueous Electrolytes ◽  
Power Sources ◽  
Energy Conversion Systems

This review concerning transition-metal-oxides-based electrocatalysts for the oxygen reduction reaction in metal–air batteries will encourage the enthusiasm of researchers to develop efficient catalysts for power sources used in electric vehicles.

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).

The prediction of metal-to-metal bonding in transition metal binary and related compounds

1964 ◽  
Vol 17 (11) ◽  
pp. 1191 ◽  
Author(s):  
JC Sheldon
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Valence State ◽  
Oxidation States ◽  
Metal Bonding ◽  
Binary Oxides ◽  
Lower Oxidation ◽  
D Orbitals ◽  
Related Compounds

The evidence for, and the factors determining, the formation of metal-to-metal (m-m) bonds in transition metal oxides, sulphides, halides, and related complexes are discussed. It is proposed that when metals of high preferred valence state are constrained to low formal oxidation states, m-m bonds will form to allow the metal to exercise a higher valency. It is assumed that (n-l)d orbitals are used for such bonds and predictions of the feasibility of m-m bonding are possible by the comparison of the size of such orbitals with the expected inter-metal distances in polymeric metal oxides and halides. It is concluded that binary oxides and halides (excepting fluorides) of the lower oxidation states of Zr, Hf, Nb, Ta, Mo, W, and Re and of a few neighbouring elements will display m-m bonds.

Controlled oxygen vacancy engineering on In2O3−x/CeO2−y nanotubes for highly selective and efficient electrocatalytic nitrogen reduction

2020 ◽  
Vol 7 (19) ◽  
pp. 3609-3619
Author(s):  
Zengyao Wang ◽  
Jianfeng Shen ◽  
Wenzhi Fu ◽  
Jiangwen Liao ◽  
Juncai Dong ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Vacancy ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Oxygen Vacancies ◽  
Reduction Reaction ◽  
Nitrogen Reduction

Introducing and adjusting the oxygen vacancies (VO) of transition metal oxides has been proposed as a significant and effective way to tackle the sluggish nitrogen reduction reaction (NRR) in the electrocatalysis process.

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