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2020
Polymer electrolyte membrane fuel cells (PEMFCs) and metal air batteries are considered green and efficient electrochemical energy devices and both include reduction of oxygen at cathode during the working of device. Due to the sluggish reaction kinetics of ORR, it is considered the performance limiting factor and to cope with this issue scientists are
Rizwan Haider +2 more
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Polymer electrolyte membrane fuel cells (PEMFCs) and metal air batteries are considered green and efficient electrochemical energy devices and both include reduction of oxygen at cathode during the working of device. Due to the sluggish reaction kinetics of ORR, it is considered the performance limiting factor and to cope with this issue scientists are
Rizwan Haider +2 more
openaire +1 more source
The oxygen reduction reaction on [NiFe] hydrogenases
Physical Chemistry Chemical Physics, 2018Oxygen tolerance capacity is critical for hydrogen oxidation/evolution catalysts.
Siyao Qiu +3 more
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Metal-Free Catalysts for Oxygen Reduction Reaction
Chemical Reviews, 2015The rising global energy demand and environmental impact of traditional energy resources pose serious challenges to human health, energy security, and environmental protection. One promising solution is fuel cell technology, which provides clean and sustainable power.
Dai, Liming +4 more
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Hierarchical Nanostructured Electrocatalysts for Oxygen Reduction Reaction
Journal of Nanoscience and Nanotechnology, 2020Hierarchical nanostructured materials, which possess the porous structure of multiscale porosities on different pore diameters from micro-, meso- to macropores based on International Union of Pure and Applied Chemistry, are much desired to present the synergistic attractive advantages of each scale of hierarchical pores in the development of catalysis,
Zihan, Meng +3 more
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Carbon-Free Electrocatalyst for Oxygen Reduction and Oxygen Evolution Reactions
ACS Applied Materials & Interfaces, 2015A nanoporous Ag-embedded SnO2 thin film was fabricated by anodic treatment of electrodeposited Ag-Sn alloy layers. The ordered nanoporous structure formed by anodization played a key role in enhancing the electrocatalytic performance of the Ag-embedded SnO2 layer in several ways: (1) the roughness factor of the thin film is greatly increased from 23 in
Yang, Yang +6 more
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Electrocatalytic Oxygen Reduction Reaction
2008Oxygen (O2) is the most abundant element in the Earth’s crust. The oxygen reduction reaction (ORR) is also the most important reaction in life processes such as biological respiration, and in energy converting systems such as fuel cells. ORR in aqueous solutions occurs mainly by two pathways: the direct 4-electron reduction pathway from O2 to H2O, and ...
Chaojie Song, Jiujun Zhang
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Measuring oxygen reduction/evolution reactions on the nanoscale
Nature Chemistry, 2011The efficiency of fuel cells and metal-air batteries is significantly limited by the activation of oxygen reduction and evolution reactions. Despite the well-recognized role of oxygen reaction kinetics on the viability of energy technologies, the governing mechanisms remain elusive and until now have been addressable only by macroscopic studies.
Kumar, Amit +4 more
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Oxygen Reduction Reaction at Three‐Phase Interfaces
ChemPhysChem, 2010AbstractThe kinetics of the oxygen reduction reaction (ORR) is studied at metal–supporting electrolyte–Nafion three‐phase interfaces. We first demonstrate that the sulfonate anions of Nafion are specifically adsorbed on a wide range of surfaces ranging from Pt(hkl) single‐crystal surfaces, Pt‐poly, Pt‐skin [produced on a Pt3Ni(111) surface by annealing
Ram, Subbaraman +4 more
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Electrochimica Acta, 1991
Abstract The kinetics of hydrogen peroxide reduction were studied on iron in borate buffered and unbuffered solutions of pH ranging from 8.6 to 13.8, with and without the presence of chloride ions. A rotating disk electrode was employed. Measurements were taken using the linear sweep technique and the potential step steady-state technique.
Zečević, Strahinja K. +2 more
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Abstract The kinetics of hydrogen peroxide reduction were studied on iron in borate buffered and unbuffered solutions of pH ranging from 8.6 to 13.8, with and without the presence of chloride ions. A rotating disk electrode was employed. Measurements were taken using the linear sweep technique and the potential step steady-state technique.
Zečević, Strahinja K. +2 more
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Advanced Biomass‐Derived Electrocatalysts for the Oxygen Reduction Reaction
Advanced Materials, 2017AbstractRecent progress in advanced nanostructures synthesized from biomass resources for the oxygen reduction reaction (ORR) is reviewed. The ORR plays a significant role in the performance of numerous energy‐conversion devices, including low‐temperature hydrogen and alcohol fuel cells, microbial fuel cells, as well as metal–air batteries.
Lehtonen, Janika +4 more
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