Articles with "catalysts oxygen" as a keyword



Advances in Atomic Iron Catalysts for Oxygen Electrocatalysis

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202513188

Abstract: The severe environmental issues triggered by the overuse of fossil energy have propelled the development of energy conversion and storage technologies. Oxygen electrocatalysis, including oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), has attracted… read more here.

Keywords: atomic iron; oxygen electrocatalysis; iron catalysts; catalysts oxygen ... See more keywords

The Role of Non‐Metallic and Metalloid Elements on the Electrocatalytic Activity of Cobalt and Nickel Catalysts for the Oxygen Evolution Reaction

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Published in 2019 at "ChemCatChem"

DOI: 10.1002/cctc.201901151

Abstract: Compounds and alloys of cobalt and nickel with some nonmetals (N, P, S, Se) and metalloids (C, B, C, As and Te) have emerged as very promising noble metal‐free pre‐catalysts for the oxygen evolution reaction… read more here.

Keywords: oxygen evolution; reaction; role; catalysts oxygen ... See more keywords

Recent Advances in Fe-Free M-N-C Catalysts for Oxygen Reduction Reaction.

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Published in 2025 at "ChemSusChem"

DOI: 10.1002/cssc.202500430

Abstract: Atomically dispersed metal-nitrogen-carbon (M-N-C) materials, characterized by well-defined coordination structures, have emerged as promising candidates to supersede costly platinum-based catalysts for the oxygen reduction reaction (ORR). Although Fe-N-C catalysts exhibit the highest ORR activity among… read more here.

Keywords: reaction; reduction reaction; catalysts oxygen; free catalysts ... See more keywords

Characterization and electrocatalytic properties of electrospun Pt‐IrO2 nanofiber catalysts for oxygen evolution reaction

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Published in 2020 at "International Journal of Energy Research"

DOI: 10.1002/er.6204

Abstract: In this study, novel Pt‐IrO2 nanofiber catalysts for oxygen evolution reaction (OER) were successfully prepared using the electrospinning method with a high‐concentration precursor solution. The composition and structure of catalysts were characterized, and the electrocatalytic… read more here.

Keywords: electrospun iro2; iro2 nanofiber; catalysts oxygen; oxygen evolution ... See more keywords

Strategies for Enhancing the Electrocatalytic Activity of M–N/C Catalysts for the Oxygen Reduction Reaction

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Published in 2018 at "Topics in Catalysis"

DOI: 10.1007/s11244-018-0935-0

Abstract: The development of highly active and durable nonprecious metal catalysts that can replace expensive Pt-based catalysts for the oxygen reduction reaction (ORR) is of pivotal importance in polymer electrolyte membrane fuel cells. In this line… read more here.

Keywords: catalysts oxygen; activity; reduction reaction; oxygen reduction ... See more keywords

Spin polarisation in dual catalysts for the oxygen evolution and reduction reactions

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Published in 2021 at "Current Opinion in Electrochemistry"

DOI: 10.1016/j.coelec.2021.100798

Abstract: Abstract Strongly correlated catalysts can be understood from precise quantum approximations. Incorporating properly electronic correlations thus let’s define Spin rules in catalysis, opening a new door towards optimum compositions for the most important reactions for… read more here.

Keywords: catalysts oxygen; spin polarisation; evolution reduction; oxygen evolution ... See more keywords

Stabilising oxide core—platinum shell catalysts for the oxygen reduction reaction

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Published in 2017 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2017.07.132

Abstract: Thin film planar models of core-shell catalysts for the oxygen reduction reaction in PEM fuel cells, have been synthesised with tin doped titania as the support for platinum. High-throughput methods have been used to investigate… read more here.

Keywords: platinum; shell catalysts; catalysts oxygen; reduction reaction ... See more keywords

Rational design and synthesis of sandwich-like iron nitride-graphene composites as efficient catalysts for oxygen reduction reaction

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Published in 2017 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2016.12.068

Abstract: Abstract Iron-based catalysts for oxygen reduction reaction (ORR) have attracted considerable attention as one of the most promising candidates owing to their low cost and high catalytic activity. Herein, sandwich-like Fe, N-graphene composites catalysts were… read more here.

Keywords: graphene composites; sandwich like; iron; catalysts oxygen ... See more keywords
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Fe–N–C catalysts for oxygen electroreduction under external magnetic fields: Reduction of magnetic O2 to nonmagnetic H2O

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Published in 2021 at "Journal of Energy Chemistry"

DOI: 10.1016/j.jechem.2021.04.048

Abstract: Abstract An extensive analysis of iron-nitrogen-carbon (Fe–N–C) electrocatalysts synthesis and activity is presented concerning synthesis conditions such as initial Fe content, pyrolysis temperature and atmosphere (inert N2, reducing NH3, oxidizing Cl2 and their sequential combinations)… read more here.

Keywords: external magnetic; reduction; pyrolysis; oxygen electroreduction ... See more keywords

Doped porous carbon nanostructure materials as non-precious metal catalysts for oxygen reduction reaction in alkaline and acid media

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Published in 2019 at "Journal of Industrial and Engineering Chemistry"

DOI: 10.1016/j.jiec.2019.07.046

Abstract: Abstract Various doped porous carbon nanomaterials to replace Pt-based catalysts for oxygen reduction reaction (ORR) in acid and alkaline media have been intensively studied. Herein, doped porous carbon nanostructure materials as non-precious metal catalysts for… read more here.

Keywords: catalysts oxygen; carbon nanostructure; doped porous; porous carbon ... See more keywords
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Nonprecious Metal Catalysts for Oxygen Reduction in Heterogeneous Aqueous Systems.

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Published in 2018 at "Chemical reviews"

DOI: 10.1021/acs.chemrev.7b00335

Abstract: A comprehensive review of recent advances in the field of oxygen reduction electrocatalysis utilizing nonprecious metal (NPM) catalysts is presented. Progress in the synthesis and characterization of pyrolyzed catalysts, based primarily on the transition metals… read more here.

Keywords: reduction; metal catalysts; npm catalysts; nonprecious metal ... See more keywords