scholarly journals Electrooxidation of Hydrogen on Ni-Organic Metal Complex Catalysts in Acidic Media for PEMFCs

2011 ◽  
Vol 2011 ◽  
pp. 1-9
Author(s):  
Rui Lin ◽  
Jinli Qiao ◽  
Haiyan Zhang ◽  
Chunhui Cao ◽  
Jing Fu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Catalytic Activity ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Treatment Temperature ◽  
Organic Metal ◽  
Hydrogen Oxidation Reaction ◽  
Acidic Media ◽  
High Hydrogen ◽  
Metal Complex Catalysts

Novel organic metal complexes with N2O2coordination structure which showed high hydrogen oxidation reaction were synthesized. The catalytic activity was found to strongly depend on the heat-treatment temperature and the structural properties.

Hydrogen Oxidation Reaction on Pt in Acidic Media:  Adsorption Isotherm and Activation Free Energies

2007 ◽  
Vol 111 (33) ◽  
pp. 12425-12433 ◽  
Author(s):  
Jia. X. Wang ◽  
Thomas E. Springer ◽  
Ping Liu ◽  
Minhua Shao ◽  
Radoslav R. Adzic
Keyword(s):  
Adsorption Isotherm ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Free Energies ◽  
Hydrogen Oxidation Reaction ◽  
Acidic Media

Pd supported N-doped CeO2 as an efficient hydrogen oxidation reaction catalyst in PEMFC

2020 ◽  
Vol 44 (40) ◽  
pp. 17203-17207
Author(s):  
Dung Van Dao ◽  
Thuy T. D. Nguyen ◽  
Thanh Duc Le ◽  
Jeong-Mo Yoon ◽  
In-Hwan Lee ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Hydrogen Oxidation Reaction ◽  
Doped Ceo2

Loading metal on N-doped oxides is advantageous to improving catalytic activity.

scholarly journals High Hydrogen Evolution Reaction (HER) and Hydrogen Oxidation Reaction (HOR) Activity RhxSy Catalyst Synthesized with Na2S for Hydrogen-Bromine Fuel Cell

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3971
Author(s):  
Yuanchao Li ◽  
Trung Van Nguyen
Keyword(s):  
Fuel Cell ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
High Mass ◽  
Support Surface ◽  
Sulfur Source ◽  
Hydrogen Oxidation Reaction ◽  
High Hydrogen

A RhxSy/C catalyst with high mass-specific electrochemical surface area (ECSA/mass), high hydrogen oxidation reaction (HOR)/hydrogen evolution reaction (HER) activity, and high Nafion® ionomer-affinity was synthesized and evaluated. A new sulfur source, Na2S instead of (NH4)2S2O3, was applied to prepare the rhodium sulfide precursor Rh2S3 that resulted in a RhxSy catalyst with higher HOR/HER catalytic activity after thermal treatment. The higher activity was attributed to the higher quantity formation of the more active phase Rh3S4, in addition to the other active Rh17S15 phase, in the RhxSy catalyst. Using this new sulfur source, carbon substrate functionalization, and the mass-transfer-controlled nanoparticle growth process, the average particle size of this catalyst was reduced from 13.5 nm to 3.2 nm, and its ECSA/mass was increased from 9.3 m2/g-Rh to 43.0 m2/g-Rh. Finally, by applying the Baeyer–Villiger and ester hydrolysis process to convert the Nafion® ionomer-unfriendly ketone group on the carbon support surface to the Nafion ionomer-friendly carboxylic group, which increases the Nafion® affinity of this catalyst, its use in the hydrogen electrode of an H2-Br2 fuel cell resulted in a performance that is 2.5× higher than that of the fuel cell with a commercial RhxSy catalyst.

New non-platinum Ir–V–Mo electro-catalyst, catalytic activity and CO tolerance in hydrogen oxidation reaction

2012 ◽  
Vol 37 (24) ◽  
pp. 18843-18850 ◽  
Author(s):  
Bing Li ◽  
Drew C. Higgins ◽  
Daijun Yang ◽  
Rui Lin ◽  
Zhuoping Yu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Hydrogen Oxidation Reaction ◽  
Co Tolerance

Dependence of hydrogen oxidation reaction on water vapor in anode-supported solid oxide fuel cells

2021 ◽  
Vol 362 ◽  
pp. 115565
Author(s):  
R.A. Budiman ◽  
T. Ishiyama ◽  
K.D. Bagarinao ◽  
H. Kishimoto ◽  
K. Yamaji ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Water Vapor ◽  
Solid Oxide Fuel Cells ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hydrogen Oxidation Reaction
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