Thickness-tunable core–shell Co@Pt nanoparticles encapsulated in sandwich-like carbon sheets as an enhanced electrocatalyst for the oxygen reduction reaction

2018 ◽  
Vol 6 (43) ◽  
pp. 21396-21403 ◽  
Author(s):  
Tao Xiang ◽  
Ling Fang ◽  
Jing Wan ◽  
Li Liu ◽  
Jiao Jiao Gao ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Core Shell ◽  
Two Dimensional

Two-dimensional sandwich-like Co/C samples with a series of different thicknesses of Pt layers have been developed for oxygen reduction reaction.

The Synthesis of High-Dispersed Ni/Pt/C Nano-Electrocatalysts for Oxygen Reduction Reaction

2015 ◽  
Vol 12 (2) ◽  
Author(s):  
Yumei Chen ◽  
Jianchao Shi
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Method Effect ◽  
Transmission Electron ◽  
Experimental Parameters ◽  
Process Method

High-dispersed core–shell Ni/Pt/C nano-electrocatalysts were prepared by “modified polyol process” method. Effect of the experimental parameters, such as the pretreatment of XC-72 supports, the method of adding the XC-72 supports, the concentration of the precursors, on the characteristic and the dispersion of the Ni/Pt nanoparticles on carbon were studied in details. The prepared core–shell Ni/Pt/C catalysts were characterized with X-ray diffraction (XRD), transmission electron microscopy (TEM), and electrochemical methods. The results exhibit that the choice of method of adding the XC-72 support into the solution before formation of the Ni core and appropriately lower concentration of the precursor can obtain high dispersed Ni/Pt/C catalysts, which showed remarkably enhanced activity for oxygen reduction reaction (ORR).

Ordered intermetallic PtFe@Pt core–shell nanoparticles supported on carbon nanotubes with superior activity and durability as oxygen reduction reaction electrocatalysts

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 66471-66475 ◽  
Author(s):  
Haijing Liu ◽  
Meiling Dou ◽  
Feng Wang ◽  
Jingjun Liu ◽  
Jing Ji ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Ordered Intermetallic ◽  
Core Shell Nanoparticles

PtFe@Pt nanoparticles with ordered intermetallic cores and Pt shells were supported on CNTs and developed as an ORR electrocatalyst.

Pt Distribution- Controlled Ni-Pt Nanocrystals via Alcohol Reduction Technique for Oxygen Reduction Reaction

2021 ◽  
Author(s):  
Kaneyuki Taniguchi ◽  
Jhon Lehman Cuya Huaman ◽  
Dausuke Iwata ◽  
Shun Yokoyama ◽  
Takatoshi Matsumoto ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Cost Benefit ◽  
Reduction Reaction ◽  
Reduction Technique ◽  
Co Poisoning ◽  
Transition Elements ◽  
Poisoning Effect ◽  
Alcohol Reduction

Alloying Pt with transition elements as electrodes in fuel cells has been proposed to solve the CO poisoning effect besides cost-benefit. Consequently, the use of Ni-Pt nanoparticles (NPs) has been...

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