Pyridine Functionalized Pt/C: Ligand-Mediated Bifunctional Catalyst for the Enhanced Oxygen Reduction and Methanol Oxidation Tolerance in Fuel Cells

2018 ◽  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
Bifunctional Catalyst ◽  
Oxidation Tolerance

Ligand-mediated bifunctional catalysis for enhanced oxygen reduction and methanol oxidation tolerance in fuel cells

2018 ◽  
Vol 6 (39) ◽  
pp. 18884-18890 ◽  
Author(s):  
Linfang Lu ◽  
Zhiqiang Wang ◽  
Shihui Zou ◽  
Yuheng Zhou ◽  
Wei Hong ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
Surface Coverage ◽  
Direct Methanol Fuel Cells ◽  
Pt Nanoparticles ◽  
Bifunctional Catalysis ◽  
Direct Methanol ◽  
Methanol Fuel Cells ◽  
Oxidation Tolerance

By controllably tuning the surface coverage of pyridine on Pt nanoparticles, we successfully achieve bifunctional catalysis in direct methanol fuel cells.

scholarly journals Oxygen reduction and methanol oxidation behaviour of SiC based Pt nanocatalysts for proton exchange membrane fuel cells

2013 ◽  
Vol 1 (48) ◽  
pp. 15509-15516 ◽  
Author(s):  
Rajnish Dhiman ◽  
Serban N. Stamatin ◽  
Shuang M. Andersen ◽  
Per Morgen ◽  
Eivind M. Skou
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Oxidation Behaviour ◽  
Exchange Membrane

Fuel Cells: Porous Platinum Nanotubes for Oxygen Reduction and Methanol Oxidation Reactions (Adv. Funct. Mater. 21/2010)

2010 ◽  
Vol 20 (21) ◽  
pp. 3617-3617 ◽  
Author(s):  
Shaun M. Alia ◽  
Gang Zhang ◽  
David Kisailus ◽  
Dongsheng Li ◽  
Shuang Gu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
Oxidation Reactions

scholarly journals Synthesis and Characterization of Te Nanotubes Decorated with Pt Nanoparticles for a Fuel Cell Anode/Cathode Working at a Neutral pH

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 328
Author(s):  
Maria Guascito ◽  
Daniela Chirizzi ◽  
Emanuela Filippo ◽  
Francesco Milano ◽  
Antonio Tepore
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
High Efficiency ◽  
Pt Nanoparticles ◽  
Synthesis And Characterization ◽  
Methanol Oxidation Reaction ◽  
X Ray

In fuel-cell technology development, one of the most important objectives is to minimize the amount of Pt, the most employed material as an oxygen reduction and methanol oxidation electro-catalyst. In this paper, we report the synthesis and characterization of Te nanotubes (TeNTs) decorated with Pt nanoparticles, readily prepared from stirred aqueous solutions of PtCl2 containing a suspension of TeNTs, and ethanol acting as a reducing agent, avoiding the use of any hydrophobic surfactants such as capping stabilizing substance. The obtained TeNTs decorated with Pt nanoparticles (TeNTs/PtNPs) have been fully characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area diffraction patterns (SAD), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV). We demonstrated that the new material can be successfully employed in fuel cells, either as an anodic (for methanol oxidation reaction) or a cathodic (for oxygen reduction reaction) electrode, with high efficiency in terms of related mass activities and on-set improvement. Remarkably, the cell operates in aqueous electrolyte buffered at pH 7.0, thus, avoiding acidic or alkaline conditions that might lead to, for example, Pt dissolution (at low pH), and paving the way for the development of biocompatible devices and on-chip fuel cells.

scholarly journals PdFeCo Supported on N-rGO as a Bifunctional Catalyst for Methanol Oxidation and High Stability Oxygen Reduction Reaction

2020 ◽  
Vol 5 (2) ◽  
pp. 29
Author(s):  
Frizka Vietanti ◽  
Chen-Hao Wang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Methanol Oxidation ◽  
High Performance ◽  
Bifunctional Catalyst ◽  
Reduction Reaction ◽  
Methanol Oxidation Reaction ◽  
Methanol Tolerance ◽  
Reduced Graphene ◽  
Orr Activity

In this study, we have synthesized nitrogen doped reduced graphene oxide (N-rGO) supported ternary PdFeCo nanoparticle by three methods. A hydrothermal method to synthesize N-rGO, an emulsion method to synthesize PdFeCo nanoparticle, and a rota-evaporation to synthesize PdFeCo/N-rGO composite. A bifunctional PdFeCo/N-rGO exhibited excellent electrocatalytic activity towards both methanol oxidation and stability in oxygen reduction reaction (ORR). During methanol oxidation reaction, PdFeCo/N-rGO exhibited stronger methanol tolerance than Pt/C. In stability ORR, PdFeCo/N-rGO exhibited 2.85 times greater than Pt/C  in ORR stability. The high performance of PdFeCo/N-rGO was attributed by strong bonding of structure. A strong bonding of transition metals in Pd based catalyst can servemethanol tolerance and stability during ORR activity.

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