Study of Cr2O3 nanoparticles supported on carbonaceous materials as catalysts for O2 reduction reaction

The O2 reduction reaction (ORR) is one promising reaction in clean energy conversion systems such as fuel cells, metal-air batteries, electrochemical reactions, etc. Pt shows excellent electrocatalytic activities for ORR,...

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An insight into the electrochemical performance of La0.5−xPrxBa0.5CoO3−δ as cathodes for solid oxide fuel cells: study of the O2-reduction reaction

Journal of Materials Chemistry A ◽

10.1039/c8ta04338h ◽

2018 ◽

Vol 6 (34) ◽

pp. 16699-16709 ◽

Cited By ~ 2

Author(s):

D. Garcés ◽

H. Wang ◽

S. A. Barnett ◽

A. G. Leyva ◽

F. R. Napolitano ◽

...

Keyword(s):

Electrochemical Performance ◽

Solid Oxide Fuel Cells ◽

Polarization Resistance ◽

Reduction Reaction ◽

Solid Oxide ◽

Electrode Polarization ◽

Oxide Fuel ◽

Resistance Response ◽

O2 Reduction ◽

Insight Into

The mechanism controlling the electrode polarization resistance response was studied for new LT-SOFC cathodes with La0.5−xPrxBa0.5CoO3−δ (0 ≤ x ≤ 0.5) compositions.

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Fe-N/C catalysts for oxygen reduction reaction supported on different carbonaceous materials. Performance in acidic and alkaline direct alcohol fuel cells

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2017.01.003 ◽

2017 ◽

Vol 205 ◽

pp. 637-653 ◽

Cited By ~ 57

Author(s):

Luigi Osmieri ◽

Ricardo Escudero-Cid ◽

Marco Armandi ◽

Alessandro H.A. Monteverde Videla ◽

José Luís García Fierro ◽

...

Keyword(s):

Fuel Cells ◽

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Reduction Reaction ◽

Carbonaceous Materials ◽

Direct Alcohol Fuel Cells ◽

Alcohol Fuel

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A facile Pt catalyst regeneration process significantly improves the catalytic activity of Pt–organic composites for the O2 reduction reaction

Chemical Communications ◽

10.1039/c5cc03530a ◽

2015 ◽

Vol 51 (60) ◽

pp. 12052-12055 ◽

Cited By ~ 5

Author(s):

Jing-Fang Huang ◽

Wen-Yu Chen

Keyword(s):

Catalytic Activity ◽

Size Effect ◽

Catalytic Performance ◽

Reduction Reaction ◽

Pt Catalyst ◽

O2 Reduction ◽

Organic Composites ◽

Acidic Conditions ◽

Nano Size ◽

Complexation Ability

Combination of the “nano-size” effect and Cl− complexation ability causes massive electrodissolution of Pt under acidic conditions to promote the regeneration of Pt–organic composites and to significantly improve the catalytic performance of the O2 reduction reaction.

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Pd–Co nanoparticles decorated on different carbon based substrates as electrocatalyst for O2 reduction reaction

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2021.06.075 ◽

2021 ◽

Author(s):

Mir Ghasem Hosseini ◽

F. Hosseinzadeh ◽

Parisa Zardari ◽

Masih Darbandi

Keyword(s):

Reduction Reaction ◽

O2 Reduction ◽

Co Nanoparticles ◽

Carbon Based

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Carbon Nanotubes-Supported Pt Electrocatalysts for O2 Reduction Reaction—Effect of Number of Nanotube Walls

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2020.17455 ◽

2020 ◽

Vol 20 (5) ◽

pp. 2736-2745 ◽

Cited By ~ 3

Author(s):

Haohua Kuang ◽

Yi Cheng ◽

Cheng Qiang Cui ◽

San Ping Jiang

Keyword(s):

Carbon Nanotubes ◽

Electrical Conductivity ◽

Electrocatalytic Activity ◽

Supported Catalysts ◽

Polymer Electrolyte Membrane ◽

Pt Nanoparticles ◽

Outer Wall ◽

Reduction Reaction ◽

O2 Reduction ◽

Walled Cnts

Carbon nanotubes (CNTs) are one of the most common catalysts supports for the development of electrocatalysts for O2 reduction reaction (ORR) of electrochemical devices such as polymer electrolyte membrane fuel cells (PEMFCs) and metal-air batteries due to their high electrical conductivity and high stability. In addition to the electrical conductivity and stability, the number of inner tubes or walls also influence the electrocatalytic activity of the supported catalysts. Here we study the electrocatalytic activity of Pt nanoparticles (NPs) supported on CNTs (Pt/CNTs) as a function of number of walls towards ORR in both alkaline and acid solutions. The results indicate that the mechanism of ORR on Pt/CNTs does not change with the number of walls of CNTs support but the number of walls of CNTs supports has a significant effect on the electrocatalytic activity of supported Pt NPs. Pt NPs supported on double-walled CNTs (DWCNTs) exhibit a much better activity for ORR, as compared with that supported on single-walled and multi-walled CNTs (SWCNTs and MWCNTs). The high electrocatalytic activity of DWCNTs-supported Pt NPs is contributed to the fast electron transfer between the outer wall and inner tubes of DWCNTs for ORR through electron tunnelling process under the electrochemical polarization driving force.

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