scholarly journals Organic Solvent’s Effect in the Deposition of Platinum Particles on MWCNTs for Oxygen Reduction Reaction

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Carolina Silva-Carrillo ◽  
Edgar Alonso Reynoso-Soto ◽  
Rosa María Félix-Navarro ◽  
Shu Wai Lin-Ho ◽  
Aline Díaz-Rivera ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Dispersion Medium ◽  
Multiwall Carbon Nanotubes ◽  
Reduction Reaction ◽  
Hexadecyltrimethylammonium Bromide ◽  
Average Particle ◽  
Platinum Particles ◽  
Dispersion Media

We reported the synthesis of platinum particles anchored on the surface of multiwall carbon nanotubes (MWCNTs). The synthesis of platinum particles was carried out by microemulsion method using hexadecyltrimethylammonium bromide (CTAB) as surfactant to enhance the dispersion of platinum particles in hexane (C6), heptane (C7), and octane (C8) solutions. The effects of the microemulsion dispersion medium on the synthesis of platinum particles on MWCNTs (MWCNT/Pt) hybrid materials and their catalytic activities of the oxygen reduction reaction (ORR) in HClO4were investigated. The anchored platinum particles showed good dispersion on carbon nanotubes surface with the average particle sizes of2.65±0.60,2.89±0.68, and0.97±0.29 nm for the dispersion medium of C6, C7, and C8, respectively. The experimental results of ORR experiments indicated a relationship between the size and the dispersion media of the platinum particles; also the catalytic activity of the anchored platinum on MWCNT particles strongly depends on the dispersion medium employed in the microemulsion process.

A co-pyrolysis route to synthesize nitrogen doped multiwall carbon nanotubes for oxygen reduction reaction

Carbon ◽  
2014 ◽  
Vol 68 ◽  
pp. 232-239 ◽  
Author(s):  
Yongxia Wang ◽  
Xiangzhi Cui ◽  
Yongsheng Li ◽  
Lisong Chen ◽  
Hangrong Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Multiwall Carbon Nanotubes ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Multiwall Carbon

scholarly journals Fe azaphthalocyanine unimolecular layers (Fe AzULs) on carbon nanotubes for realizing highly active oxygen reduction reaction (ORR) catalytic electrodes

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Hiroya Abe ◽  
Yutaro Hirai ◽  
Susumu Ikeda ◽  
Yasutaka Matsuo ◽  
Haruyuki Matsuyama ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Electrode Materials ◽  
Low Cost ◽  
Multiwall Carbon Nanotubes ◽  
Reduction Reaction ◽  
Polymer Electrolyte Fuel Cells ◽  
New Class ◽  
Highly Active

Abstract A new class of Pt-free catalysts was designed that included molecular iron phthalocyanine (FePc) derivatives, namely, iron azaphthalocyanine (FeAzPc) unimolecular layers (Fe AzULs) adsorbed on oxidized multiwall carbon nanotubes (oxMWCNTs). FeAzPcs were dissolved in organic solvents such as dimethyl sulfoxide (DMSO), and catalytic electrodes modified with molecularly adsorbed FeAzPcs were successfully prepared. The optimized composition of the catalytic electrodes was determined, and the electrodes exhibited superior activity for the oxygen reduction reaction (ORR) and better durability than conventional FePc catalytic electrodes and commercial Pt/C due to the electron-withdrawing properties of the pyridinic nitrogen in FeAzPcs. The catalytic electrodes that were molecularly modified with FeAzPcs have higher activities than those composed of FeAzPc crystals and oxMWCNTs. To the best of our knowledge, among all of the conventional catalysts based on modified MWCNTs and oxMWCNTs, this catalyst exhibits the highest activity. Unlike other Pt-free catalytic electrodes, the Fe AzUL catalytic electrodes can be prepared by low-cost processing without pyrolysis and are therefore promising catalytic electrode materials for applications, such as polymer electrolyte fuel cells and metal–air batteries.

Effect of carbon nanotube diameter for the synthesis of Fe/N/multiwall carbon nanotubes and repercussions for the oxygen reduction reaction

2013 ◽  
Vol 240 ◽  
pp. 494-502 ◽  
Author(s):  
F.J. Pérez-Alonso ◽  
M. Abdel Salam ◽  
T. Herranz ◽  
J.L. Gómez de la Fuente ◽  
S.A. Al-Thabaiti ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Multiwall Carbon Nanotubes ◽  
Reduction Reaction ◽  
Multiwall Carbon

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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