Oxygen Reduction Reaction in Layer-by-Layer Fabricated Cobalt Porphyrin-Based Nanostructures

2021 ◽  
Vol 1025 ◽  
pp. 3-8
Author(s):  
Banjongsak Lamlua ◽  
Takahiro Ohyama ◽  
Yuki Nagao
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Indium Tin Oxide ◽  
Electronic Absorption Spectra ◽  
Polymer Electrolyte Membrane ◽  
Chloroform Solution ◽  
Reduction Reaction ◽  
Layer By Layer ◽  
Electrolyte Membrane

Metalloporphyrin-based nanostructures were fabricated on 3-aminopropylmethoxysilane-modified indium tin oxide (ITO) surface. UV-visible spectroscopy and cyclic voltammetry are used for investigating electronic absorption spectra and catalytic activity in oxygen reduction reactions as alternative cathode electrochemical catalysts for polymer electrolyte membrane fuel cells (PEMFCs). Using of 5,10,15,20-tetrakis-(4-amiophenyl)-porphyrin-Co (II) as a building block and 1,4-phenylene diisocyanate as a linker, the mixed toluene/chloroform solution-based layer-by-layer process can produce linear growth of 5,10,15,20-tetrakis-(4-amiophenyl)-porphyrin-Co (II) up to 30 layers through urea bonds. The vacuum thermal annealing process demonstrated the improvement of catalytic activity in oxygen reduction reaction.

Oxygenophilic ionic liquids promote the oxygen reduction reaction in Pt-free carbon electrocatalysts

2017 ◽  
Vol 4 (5) ◽  
pp. 895-899 ◽  
Author(s):  
Mo Qiao ◽  
Cheng Tang ◽  
Liviu Cristian Tanase ◽  
Cristian Mihail Teodorescu ◽  
Chengmeng Chen ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Polymer Electrolyte ◽  
Surface Properties ◽  
Polymer Electrolyte Membrane ◽  
Reduction Reaction ◽  
Alkaline Fuel Cells ◽  
Electrolyte Membrane

We propose a novel idea to improve the surface properties of carbon-based Pt-free electrocatalysts in Polymer Electrolyte Membrane Fuel Cells (PEMFCs) and Alkaline Fuel Cells (AFCs).

Dendrimer confined Pt nanoparticles: electro-catalytic activity towards the oxygen reduction reaction and its application in polymer electrolyte membrane fuel cells

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75218-75228 ◽  
Author(s):  
A. Arunchander ◽  
S. Gouse Peera ◽  
V. Parthiban ◽  
Srinu Akula ◽  
Tintula Kottakkat ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Polymer Electrolyte Membrane ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Electrolyte Membrane ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes ◽  
Electro Catalytic Activity

Pt-DENs have been synthesized and immobilized on ester and anhydride functionalized Vulcan XC-72R. These catalysts are utilized as fuel cell cathodes and significant enhanced performances have been achieved with the Pt loading of 0.2 mg cm−2.

Effects of transition metal precursors (Co, Fe, Cu, Mn, or Ni) on pyrolyzed carbon supported metal-aminopyrine electrocatalysts for oxygen reduction reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 6195-6206 ◽  
Author(s):  
Pan Xu ◽  
Wenzhao Chen ◽  
Qiang Wang ◽  
Taishan Zhu ◽  
Mingjie Wu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Polymer Electrolyte Membrane ◽  
Pem Fuel Cells ◽  
Reduction Reaction ◽  
Electrolyte Membrane ◽  
The Past ◽  
Precious Metal Catalysts ◽  
Metal Precursors

In the past four decades, non-precious metal catalysts (NPMCs) have been extensively studied as low-cost catalyst alternatives to Pt for the oxygen reduction reaction (ORR) in polymer electrolyte membrane (PEM) fuel cells.

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