Galvanostatically Deposited Nickel Nanoparticles As Electrocatalyst for the Methanol Oxidation Reaction: Role of Deposition Current Density on Catalytic Activity

2018 ◽  
Keyword(s):  
Catalytic Activity ◽  
Methanol Oxidation ◽  
Current Density ◽  
Oxidation Reaction ◽  
Nickel Nanoparticles ◽  
Methanol Oxidation Reaction ◽  
Deposition Current Density

The influencing role of oxophilicity and surface area of the catalyst for electrochemical methanol oxidation reaction: a case study

2018 ◽  
Vol 23 (7) ◽  
pp. 440-447 ◽  
Author(s):  
Samarjeet Siwal ◽  
Nishu Devi ◽  
Venkata Perla ◽  
Rasmita Barik ◽  
Sarit Ghosh ◽  
...  
Keyword(s):  
Surface Area ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction

Hydrogen gas-assisted synthesis of worm-like PtMo wavy nanowires as efficient catalysts for the methanol oxidation reaction

2016 ◽  
Vol 4 (27) ◽  
pp. 10508-10513 ◽  
Author(s):  
Shuanglong Lu ◽  
Kamel Eid ◽  
Ming Lin ◽  
Liang Wang ◽  
Hongjing Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Hydrogen Pressure ◽  
Hydrogen Gas ◽  
Methanol Oxidation Reaction ◽  
One Pot ◽  
One Pot Synthesis

A facile method for one-pot synthesis of worm-like PtMo wavy nanowires under hydrogen pressure is developed. The as-made catalyst shows superior catalytic activity and durability towards the methanol oxidation reaction.

The Electrolyte-Fuel Concentrations Effects on Direct Methanol Alkaline Fuel Cell (DMAFC) Through Non-Noble Metal Catalysts

2021 ◽  
Vol 5 (1) ◽  
pp. 25
Author(s):  
Wika Atro Auriyani ◽  
Djoni Bustan ◽  
Sri Haryati
Keyword(s):  
Fuel Cell ◽  
Methanol Oxidation ◽  
Current Density ◽  
Potassium Hydroxide ◽  
Oxidation Reaction ◽  
Nickel Foam ◽  
Methanol Oxidation Reaction ◽  
Alkaline Fuel Cell ◽  
Noble Metal Catalysts ◽  
Direct Methanol

Most of the R&D on Direct Methanol Alkaline Fuel Cell (DMAFC) concentrates on electrode catalyst and appropriate electrolyte to improve the efficiency. Mostly, a Pt-based electrocatalyst was used. In this research, Nickel foam and membrane silver as non-noble metal catalysts were used in a square-shaped fuel cell stack of 15 x 15 cm in size. The ionic current in the Direct Methanol Alkaline Fuel Cell (DMAFC) was due to the conduction of hydroxide ions. Potassium hydroxide which plays an essential role in delivering hydroxide ions was used in this study. The electrolyte effect of potassium hydroxide was studied in different concentrations for the methanol oxidation reaction. Nickel foam and membrane silver were used for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). 1 M, 3 M, 5 M concentration of potassium hydroxide and 0.5 M, 1 M, 2 M, 3 M, 4 M, 5 M of methanol as a fuel have been conducted. The highest maximum power density of 543.35 mW/cm2 was obtained at 2,331 mA/cm2 of current density using the 5 M KOH and 0,5 M fuel. At equimolar concentration between fuel-electrolyte mixture give the higher current density.

Hollow PtCu nanorings with high performance for the methanol oxidation reaction and their enhanced durability by using trace Ir

2020 ◽  
Vol 8 (7) ◽  
pp. 3795-3802 ◽  
Author(s):  
Yan Shi ◽  
Yan Fang ◽  
Genlei Zhang ◽  
Xianshun Wang ◽  
Peng Cui ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
High Performance ◽  
Hollow Structure ◽  
Methanol Oxidation Reaction

Cu atoms and a hollow structure are helpful for the improvement of the MOR activity of Pt. Trace Ir atoms might promise a superior durability for the Pt-based catalysts while maintaining the MOR catalytic activity.

Sign in / Sign up

Export Citation Format

Share Document