scholarly journals High-Index Core–Shell Ni–Pt Nanoparticles as Oxygen Reduction Electrocatalysts

2020 ◽  
Vol 3 (6) ◽  
pp. 5718-5731 ◽  
Author(s):  
Gerard M. Leteba ◽  
David R. G. Mitchell ◽  
Pieter B. J. Levecque ◽  
Lebohang Macheli ◽  
Eric van Steen ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
High Index ◽  
Core Shell

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.

Oxygen Adsorption on High-Index Faceted Pt Nanoparticles

2021 ◽  
Author(s):  
Wuyang Lin ◽  
Rao Huang ◽  
Lei Li ◽  
Yuhua Wen
Keyword(s):  
Monte Carlo ◽  
Fuel Cells ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Oxygen Adsorption ◽  
High Index ◽  
Grand Canonical Monte Carlo ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Grand Canonical

High-index faceted Pt nanoparticles with excellent electrocatalytic performances are promising to efficiently accelerate the oxygen reduction reactions in fuel cells. By adopting the hybrid grand canonical Monte Carlo reactive molecular...

Intermetallic FePt@PtBi Core–Shell Nanoparticles for Oxygen Reduction Electrocatalysis

2021 ◽  
Author(s):  
Jingyu Guan ◽  
Shaoxuan Yang ◽  
Tongtong Liu ◽  
Yihuan Yu ◽  
Jin Niu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

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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