Uniform Pd0.33Ir0.67 nanoparticles supported on nitrogen-doped carbon with remarkable activity toward the alkaline hydrogen oxidation reaction

2019 ◽  
Vol 7 (7) ◽  
pp. 3161-3169 ◽  
Author(s):  
Yuanyuan Cong ◽  
Ian T. McCrum ◽  
Xueqiang Gao ◽  
Yang Lv ◽  
Shu Miao ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Hydrogen Binding ◽  
Hydrogen Oxidation Reaction ◽  
Nitrogen Doped ◽  
Electrocatalytic Performance ◽  
Nitrogen Doped Carbon

The excellent alkaline HOR electrocatalytic performance on Pd1−xIrx/N-C arises from the appropriate strength of hydrogen binding and the strongest oxophilic property.

scholarly journals Nickel supported on nitrogen-doped carbon nanotubes as hydrogen oxidation reaction catalyst in alkaline electrolyte

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Zhongbin Zhuang ◽  
Stephen A. Giles ◽  
Jie Zheng ◽  
Glen R. Jenness ◽  
Stavros Caratzoulas ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Alkaline Electrolyte ◽  
Hydrogen Oxidation Reaction ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

scholarly journals A highly-active, stable and low-cost platinum-free anode catalyst based on RuNi for hydroxide exchange membrane fuel cells

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yanrong Xue ◽  
Lin Shi ◽  
Xuerui Liu ◽  
Jinjie Fang ◽  
Xingdong Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Low Cost ◽  
Rotating Disk ◽  
Membrane Electrode ◽  
Anode Catalyst ◽  
Hydrogen Binding ◽  
Hydrogen Oxidation Reaction ◽  
Exchange Membrane

Abstract The development of cost-effective hydroxide exchange membrane fuel cells is limited by the lack of high-performance and low-cost anode hydrogen oxidation reaction catalysts. Here we report a Pt-free catalyst Ru7Ni3/C, which exhibits excellent hydrogen oxidation reaction activity in both rotating disk electrode and membrane electrode assembly measurements. The hydrogen oxidation reaction mass activity and specific activity of Ru7Ni3/C, as measured in rotating disk experiments, is about 21 and 25 times that of Pt/C, and 3 and 5 times that of PtRu/C, respectively. The hydroxide exchange membrane fuel cell with Ru7Ni3/C anode can deliver a high peak power density of 2.03 W cm−2 in H2/O2 and 1.23 W cm−2 in H2/air (CO2-free) at 95 °C, surpassing that using PtRu/C anode catalyst, and good durability with less than 5% voltage loss over 100 h of operation. The weakened hydrogen binding of Ru by alloying with Ni and enhanced water adsorption by the presence of surface Ni oxides lead to the high hydrogen oxidation reaction activity of Ru7Ni3/C. By using the Ru7Ni3/C catalyst, the anode cost can be reduced by 85% of the current state-of-the-art PtRu/C, making it highly promising in economical hydroxide exchange membrane fuel cells.

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

Carbide-Supported PtRu Catalysts for Hydrogen Oxidation Reaction in Alkaline Electrolyte

ACS Catalysis ◽  
2021 ◽  
pp. 932-947
Author(s):  
Eliran R. Hamo ◽  
Ramesh K. Singh ◽  
John C. Douglin ◽  
Sian Chen ◽  
Mohamed Ben Hassine ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Alkaline Electrolyte ◽  
Hydrogen Oxidation Reaction ◽  
Ptru Catalysts

Identification of Catalyst Structure during the Hydrogen Oxidation Reaction in an Operating PEM Fuel Cell

ACS Catalysis ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 7326-7334 ◽  
Author(s):  
Armin Siebel ◽  
Yelena Gorlin ◽  
Julien Durst ◽  
Olivier Proux ◽  
Frédéric Hasché ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Pem Fuel Cell ◽  
Hydrogen Oxidation Reaction ◽  
Catalyst Structure

Catalothermionic Power Generator Based on Internal Electron Emission in Ni/SiC Heterojunction Nanostructures

2009 ◽  
Author(s):  
Eduard G. Karpov ◽  
Ievgen I. Nedrygailov
Keyword(s):  
Energy Transfer ◽  
Electron Emission ◽  
Oxidation Reaction ◽  
Hydrogen Oxidation ◽  
Schottky Barriers ◽  
Gas Mixture ◽  
Hydrogen Oxidation Reaction ◽  
Power Generator ◽  
Oxidation Of Hydrogen ◽  
Internal Electron

We report on the unusual properties of single-faced SiC metal-semiconductor heterojunction nanostructures manifested by the ability to atalyze the hydrogen oxidation reaction, and also maintain internal electron emission over the Schottky barriers. As a result a stationary current has been detected in the preheated nanostructure when exposed to the oxyhydrogen gas mixture flux. The structures maintain both the non-adiabatic and electron-phonon channels of energy transfer, and the results of studies indicate the possibility for a very efficient conversion of chemical energy released in the catalytic oxidation of hydrogen into electricity.

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