Electro-oxidation of methanol and ethylene glycol on platinum in alkaline solution: Poisoning effects and product analysis

2005 ◽  
Vol 51 (6) ◽  
pp. 1085-1090 ◽  
Author(s):  
Koji Matsuoka ◽  
Yasutoshi Iriyama ◽  
Takeshi Abe ◽  
Masao Matsuoka ◽  
Zempachi Ogumi
Keyword(s):  
Ethylene Glycol ◽  
Alkaline Solution ◽  
Product Analysis ◽  
Oxidation Of Methanol ◽  
Electro Oxidation

A Comparative Study of the Catalytic Performance of Pt-Based Bi and Trimetallic Nanocatalysts Towards Methanol, Ethanol, Ethylene Glycol, and Glycerol Electro-Oxidation

2020 ◽  
Vol 20 (10) ◽  
pp. 6274-6285 ◽  
Author(s):  
Hadla S. Ferreira ◽  
Martin Gocyla ◽  
Hadma S. Ferreira ◽  
Rennan G. O. Araujo ◽  
Caio V. S. Almeida ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fuel Cells ◽  
Ethylene Glycol ◽  
Inductively Coupled Plasma ◽  
Catalytic Performance ◽  
X Ray ◽  
Onset Potential ◽  
Oxidation Of Methanol ◽  
Catalyst Composition ◽  
Electro Oxidation

Carbon-supported platinum is used as an anode and cathode electrocatalyst in low-temperature fuel cells fueled with low-molecular-weight alcohols in fuel cells. The cost of Pt and its low activity towards the complete oxidation of these fuels are significant barriers to the widespread use of these types of fuel cells. Here, we report on the development of PtRhNi nanocatalysts supported on carbon made using a reduction chemistry method with different atomic rates. The catalytic activity of the developed catalysts towards the electro-oxidation of methanol, ethanol, ethylene glycol, and glycerol in acidic media was studied. The obtained catalysts performances were compared with both commercial Pt/C and binary Pt75Ni25/C catalyst. The nanostructures were characterized, employing inductively coupled plasma optical emission spectrometer, X-ray diffraction, scanning transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The binary catalyst presents a mean particle size of around 2 nm. Whereas the ternary catalysts present particles of similar size and with some large alloy and core–shell structures. The alcohol oxidation onset potential and the current density measured after 3600 s of chronoamperometry were used to classify the catalytic activity of the catalysts towards the oxidation of methanol, ethanol, ethylene glycol, and glycerol. The best PtRhNi/C catalyst composition (i.e., Pt43Rh43Ni14/C) presented the highest activity for alcohols oxidation compared with all catalysts studied, indicating the proper tuning composition influence in the catalytic activity. The enhanced activity of Pt43Rh43Ni14/C can be attributed to the synergic effect of trimetallic compounds, Pt, Ni, and Rh.

Electro-oxidation of methanol on copper in alkaline solution

2004 ◽  
Vol 49 (27) ◽  
pp. 4999-5006 ◽  
Author(s):  
H. Heli ◽  
M. Jafarian ◽  
M.G. Mahjani ◽  
F. Gobal
Keyword(s):  
Alkaline Solution ◽  
Oxidation Of Methanol ◽  
Electro Oxidation

Decorated carbon nanofibers with mixed nickel−manganese carbides for methanol electro-oxidation in alkaline solution

2020 ◽  
Author(s):  
Mohamed Abbas ◽  
R.M. Abdel Hameed ◽  
Abdullah M. Al-Enizi ◽  
Badr M. Thamer ◽  
Ayman Yousef ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Alkaline Solution ◽  
Electro Oxidation ◽  
Nickel Manganese

scholarly journals Structure and electrochemical activity of nickel aluminium fluoride nanosheets during urea electro-oxidation in an alkaline solution

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 3190-3201
Author(s):  
Saba A. Aladeemy ◽  
Abdullah M. Al-Mayouf ◽  
Mabrook S. Amer ◽  
Nouf H. Alotaibi ◽  
Mark T. Weller ◽  
...  
Keyword(s):  
Alkaline Solution ◽  
Oxidation Reaction ◽  
Electrochemical Activity ◽  
Aluminium Fluoride ◽  
Electro Oxidation

An electrocatalyst of potassium nickel aluminium hexafluoride (KNiAlF6) nanosheets for enhanced urea oxidation reaction.

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