Enhanced oxygen reduction reaction performance of size-controlled Pt nanoparticles on polypyrrole-functionalized carbon nanotubes

2019 ◽  
Vol 48 (21) ◽  
pp. 7130-7137 ◽  
Author(s):  
Kentaro Ichihashi ◽  
Satoshi Muratsugu ◽  
Shota Miyamoto ◽  
Kana Sakamoto ◽  
Nozomu Ishiguro ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Multi Wall Carbon Nanotubes ◽  
Nanoparticle Catalysts ◽  
Pyrrole Monomer ◽  
Reaction Performance ◽  
Size Controlled

Enhanced oxygen reduction reaction performances were achieved on size-controlled Pt nanoparticle catalysts prepared by the copolymerization of a Pt4-pyrrole complex and pyrrole monomer in the presence of multi-wall carbon nanotubes.

scholarly journals Oxygen reduction reaction catalyzed by overhanging carboxylic acid strapped iron porphyrins adsorbed on carbon nanotubes

2020 ◽  
Vol 24 (05n07) ◽  
pp. 675-684
Author(s):  
Bernard Boitrel ◽  
Morgane Bouget ◽  
Pradip K. Das ◽  
Stéphane Le Gac ◽  
Thierry Roisnel ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carboxylic Acid ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Acid Group ◽  
Reduction Reaction ◽  
Polar Group ◽  
Carboxylic Acid Group ◽  
Multi Wall Carbon Nanotubes ◽  
Binding Cavity

A series of hybrid catalysts for the oxygen reduction reaction (ORR) has been investigated. They are composed of multi-wall carbon nanotubes (MWNTs) coated with iron strapped porphyrins. Two porphyrins have been probed; both are strapped with the same skeleton and differ only by the number of overhung carboxylic acid(s), either one or two. In this structure, the carboxylic acid group can act as a proton relay between the medium and the catalyst or as a polar group surrounding the dioxygen binding cavity. While the number of carboxylic acid group(s) does not exhibit a significant influence on the catalytic properties, the combination of both components–MWNTs and porphyrin–leads to a better catalytic activity than those of the nanotubes or the porphyrins taken separately.

In situ preparation of multi-wall carbon nanotubes/Au composites for oxygen electroreduction

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91209-91215 ◽  
Author(s):  
Na Li ◽  
Zhenghua Tang ◽  
Likai Wang ◽  
Qiannan Wang ◽  
Wei Yan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Oxygen Electroreduction ◽  
Multi Wall Carbon Nanotubes ◽  
In Situ Preparation ◽  
Reduction Approach

Multi-wall carbon nanotubes (CNTs)/Au nanocomposites have been prepared by the in situ reduction approach for oxygen reduction reaction.

Ionic self-assembly of metalloporphyrin/heteropolyacid on multi-wall carbon nanotubes with enhanced electrocatalytic activity toward oxygen reduction reaction

2019 ◽  
Vol 23 (03) ◽  
pp. 235-242 ◽  
Author(s):  
Hongsa Han ◽  
Ziwei Cao ◽  
Yunlong Zhang ◽  
Jiaqi Qin ◽  
Yujiang Song
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Self Assembly ◽  
Reduction Reaction ◽  
Ethanol Solution ◽  
Ambient Conditions ◽  
Multi Wall Carbon Nanotubes ◽  
Design And Synthesis ◽  
Activity Enhancement

We report the synthesis of a series of hybrid electrocatalysts toward oxygen reduction reaction (ORR) by ionic self-assembly of positively charged Fe(III) meso-tetra([Formula: see text]-methyl-4-pyridyl)porphyrin (FeP) with negatively charged H3PMo[Formula: see text]O[Formula: see text] (PMo[Formula: see text] in ethanol solution under ambient conditions in the presence of suspended multi-wall carbon nanotubes (MWCNTs). Self-assembled FeP/PMo[Formula: see text] was well-dispersed on MWCNTs with a tunable loading from 26.3% to 55.6%. Interestingly, the hybrid electrocatalysts demonstrated a much higher ORR activity than individual PMo[Formula: see text] and FeP in acidic media. We speculate that this activity enhancement might originate from a possible synergy between PMo[Formula: see text] and FeP. This study may be extended to the design and synthesis of other types of hybrid electrocatalysts for applications in electrochemical energy conversion, storage and sensing.

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...

scholarly journals Correction: Fast prediction of oxygen reduction reaction activity on carbon nanotubes with a localized geometric descriptor

2021 ◽  
Vol 23 (7) ◽  
pp. 4454-4454
Author(s):  
Kunran Yang ◽  
Jeremie Zaffran ◽  
Bo Yang
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Chem Phys ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Fast Prediction ◽  
Phys Chem Chem Phys

Correction for ‘Fast prediction of oxygen reduction reaction activity on carbon nanotubes with a localized geometric descriptor’ by Kunran Yang et al., Phys. Chem. Chem. Phys., 2020, 22, 890–895, DOI: 10.1039/C9CP04885E.

Fe/Fe 3 C Nanoparticles Confined in Graphitic Layers/Carbon Nanotubes as Efficient Oxygen Reduction Reaction Catalysts

2019 ◽  
Vol 4 (36) ◽  
pp. 10863-10867
Author(s):  
Yanping Huang ◽  
Weifang Liu ◽  
Shuting Kan ◽  
Penggao Liu ◽  
Hongtao Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction
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