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.

scholarly journals In situ synthesis of metal embedded nitrogen doped carbon nanotubes as an electrocatalyst for the oxygen reduction reaction with high activity and stability

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 25051-25056 ◽  
Author(s):  
Yanhong Yin ◽  
Hengbo Zhang ◽  
Rongzhen Gao ◽  
Aili Wang ◽  
Xinxin Mao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Reduction Reaction ◽  
In Situ Synthesis ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

In this work, a Co–N doped carbon nanotube (CNT) catalyst was fabricated via a simple pyrolysis approach.

In situ preparation of Ca0.5Mn0.5O/C as a novel high-activity catalyst for the oxygen reduction reaction

2016 ◽  
Vol 4 (48) ◽  
pp. 19147-19153 ◽  
Author(s):  
Yu-Qi Lyu ◽  
Chi Chen ◽  
Yang Gao ◽  
Mattia Saccoccio ◽  
Francesco Ciucci
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Rock Salt ◽  
Reduction Reaction ◽  
In Situ Preparation ◽  
Enhanced Activity ◽  
Activity Catalyst

Ca-substituted rock-salt MnO/C (Ca0.5Mn0.5O/C) is prepared using an in situ approach and shows enhanced activity for the oxygen reduction reaction (ORR).

In situ derived Fe/N/S-codoped carbon nanotubes from ZIF-8 crystals as efficient electrocatalysts for the oxygen reduction reaction and zinc–air batteries

2018 ◽  
Vol 6 (41) ◽  
pp. 20093-20099 ◽  
Author(s):  
Huihui Jin ◽  
Huang Zhou ◽  
Wenqiang Li ◽  
Zhihao Wang ◽  
Jinlong Yang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Hydrazine Hydrate ◽  
Oxygen Reduction ◽  
High Performance ◽  
Reduction Reaction ◽  
Zinc Air Batteries

Hydrazine hydrate was employed to prevent Fe agglomeration and sulphate ions were used as the S source, which together led to Fe/N/S-CNTs with high performance.

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.

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.

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.

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