Electrocatalytic oxidation of ethylene glycol (EG) on supported Pt and Au catalysts in alkaline media: Reaction pathway investigation in three-electrode cell and fuel cell reactors

2012 ◽  
Vol 125 ◽  
pp. 85-94 ◽  
Author(s):  
Le Xin ◽  
Zhiyong Zhang ◽  
Ji Qi ◽  
David Chadderdon ◽  
Wenzhen Li
Keyword(s):  
Fuel Cell ◽  
Ethylene Glycol ◽  
Electrocatalytic Oxidation ◽  
Reaction Pathway ◽  
Alkaline Media ◽  
Electrode Cell

scholarly journals Electrocatalytic oxidation of ethanol and ethylene glycol on cubic, octahedral and rhombic dodecahedral palladium nanocrystals

2018 ◽  
Vol 54 (20) ◽  
pp. 2562-2565 ◽  
Author(s):  
Xian-Yin Ma ◽  
Yafeng Chen ◽  
Han Wang ◽  
Qiao-Xia Li ◽  
Wen-Feng Lin ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Electrocatalytic Oxidation ◽  
Alkaline Media ◽  
Oxidation Of Ethanol

Ethanol and ethylene glycol electrocatalytic oxidation on Pd cubic, octahedral and rhombic dodecahedral nanocrystals in alkaline media was systematically investigated.

Solvent-mediated crystalline phases of NixSy anchored on rGO sheets as electrocatalysts for hydrogen evolution application

2019 ◽  
Vol 12 (01) ◽  
pp. 1850089
Author(s):  
Hou Lin Yu ◽  
Wenliang Shi ◽  
Shuaishuai Li ◽  
Junma Zhang ◽  
Xiaobo Zhang ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Hydrogen Evolution ◽  
Hydrothermal Process ◽  
Volume Ratio ◽  
Decisive Role ◽  
Catalytic Performance ◽  
Deionized Water ◽  
Alkaline Media ◽  
One Pot ◽  
Alkaline Environments

A facile, one-pot solvent-mediated hydrothermal process was adopted to prepare nickel sulfide nanoparticles decorated on reduced graphene oxide (NixSy/rGO) as electrocatalysts for hydrogen evolution reaction (HER). The designed solvent (ethylene glycol and deionized water) played a decisive role in controlling both crystalline phase and morphology of NixSy/rGO composites, leading to pure [Formula: see text]-NiS nanoparticles uniformly distributed on rGO sheets under suitable volume ratio of ethylene glycol and deionized water (2:1). The optimized [Formula: see text]-NiS/rGO showed prominent HER catalytic performance with a rather small Tafel slope of 93[Formula: see text]mV/decade and prominent current density of 10[Formula: see text]mA/cm2 at the overpotential of 177[Formula: see text]mV in alkaline environments when compared to pristine [Formula: see text]-NiS and NiS2/rGO catalysts. The excellent catalytic performance and long-term durability even after 8000 cycles confirmed the potential of [Formula: see text]-NiS/rGO composites as efficient electrocatalysts for HER in the alkaline media.

Performance of a hybrid direct ethylene glycol fuel cell

2018 ◽  
Vol 43 (7) ◽  
pp. 2583-2591 ◽  
Author(s):  
Zhefei Pan ◽  
Bin Huang ◽  
Liang An
Keyword(s):  
Fuel Cell ◽  
Ethylene Glycol

scholarly journals Evaluation on Thermo-Electrical Characteristics of Sio2 Nanofluids for Fuel Cell Cooling Application in Automobiles

2018 ◽  
Vol 7 (3.17) ◽  
pp. 137
Author(s):  
Suleiman Akilu ◽  
Aklilu Tesfamichael Baheta ◽  
K V. Sharma
Keyword(s):  
Fuel Cell ◽  
Ethylene Glycol ◽  
Proton Exchange Membrane ◽  
Membrane System ◽  
Proton Exchange ◽  
Electrical Performance ◽  
Particle Volume ◽  
System A ◽  
Critical Requirement ◽  
Exchange Membrane

Effective thermal management is critical requirement in fuel cell technologies to avoid the performance degradation during operation. Nanofluids offer the potential to address this cooling challenge in fuel cells better than pure fluids. However, due to the electrochemical changes associated with the proton exchange membrane system, a strict limit on thermal and electrical properties of coolant needs to comply. In this study, the thermal and electrical conductivities of silicon dioxide (SiO2) dispersion of ethylene glycol (EG), glycerol (G), and 40:60 by mass ethylene glycol-glycerol (EG/G) was investigated experimentally. Measurements were carried for particle volume concentrations of 0.25–2.0% at a temperature of 30 °C. The thermal and electrical conductivity of the nanofluids significantly increases with SiO2 loading. Maximum enhancements of ∼4.0% and ∼198% at a volume concentration of 2.0% were obtained with SiO2-EG/G, respectively. Further, analysis of the results reveals that SiO2/G exhibited the greatest thermo-electrical performance, followed by SiO2-EG/G and EG. Therefore, SiO2-EG/G nanofluid is best-suited coolant for PEM fuel cell thermal applications.  

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