Artifacts in Measuring Electrode Catalyst Area of Fuel Cells through Cyclic Voltammetry

2019 ◽  
Vol 11 (1) ◽  
pp. 403-410 ◽  
Author(s):  
Robert N. Carter ◽  
Shyam S. Kocha ◽  
Frederick Wagner ◽  
Matthew Fay ◽  
Hubert A. Gasteiger
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Measuring Electrode

Synthesis and characterization of novel functionalized perarylated polysiloxane for proton exchange membrane fuel cells

MRS Advances ◽  
2019 ◽  
Vol 4 (64) ◽  
pp. 3579-3585
Author(s):  
Guillermo M. González Guerra ◽  
Alejandro Alatorre-Ordaz ◽  
Gerardo González Garcia ◽  
Jesus S. Jaime-Ferrer
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Area Under The Curve ◽  
Chlorosulfonic Acid ◽  
Proton Exchange ◽  
Synthesis And Characterization ◽  
A Value ◽  
Exchange Membrane

ABSTRACTThis work presents the synthesis and characterization of a pearylated polysiloxane material (PAP) from a polycondensation reaction, followed by functionalization with HClSO3 by an electrophilic substitution reaction. According to the characterization techniques applied, a sulfonated pearylated polysiloxane was also obtained, (SPAP). The purpose of this sulfonated material is to obtain an ionomer able to be applied in hydrogen fuel cells of the proton exchange membrane kind (PEMFC). The reaction to produce the polysiloxane precursor was carried out with the commercial reagents: PhSiCl3, Ph2SiCl2 and Ph3SiCl in anhydrous THF at 75 °C and the SPAP material was obtained by sulfonation of the precursor with chlorosulfonic acid. PAP and SPAP were characterized by 1H, NMR for liquids, 29Si NMR for solids, IR-ATR, SEM, and cyclic voltammetry. The NMR 29Si spectra show that PAP and PAPS contain crosslinking regions due to PhSiCl3, growing chain zones due to Ph2SiCl2 and polymer termination zones due to Ph3SiCl, obtaining a mixture of siloxanes. The analysis by cyclic voltammetry indicates that by integrating the area under the curve of the adsorption peaks of H2, a value of 0.062 mC/cm2 is obtained, a value close to the commercial ionomer of Nafion®.

Electrodeposition of graphene by cyclic voltammetry on nickel electrodes for microbial fuel cells applications

2019 ◽  
Vol 43 (7) ◽  
pp. 2795-2805 ◽  
Author(s):  
Weihuang Zhu ◽  
Haoxiang Gao ◽  
Fei Zheng ◽  
Tinglin Huang ◽  
Fengchang Wu ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Nickel Electrodes

Cyclic voltammetry electrodeposition of well-dispersed Pd nanoparticles on carbon paper as a flow-through anode for microfluidic direct formate fuel cells

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20270-20278
Author(s):  
Tong Zhang ◽  
Xun Zhu ◽  
Ding-Ding Ye ◽  
Rong Chen ◽  
Yuan Zhou ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Carbon Paper ◽  
Flow Through ◽  
Catalyst Utilization

Cyclic voltammetry electrodeposition of palladium nanoparticles on carbon paper results in high catalytic performance, catalyst utilization and stability for their use in microfluidic direct formate fuel cells.

Evaluation of the Fe(III)/Fe(II) Redox Fuel Cell Cathode Couple in a Bioelectrolytic Solution

2006 ◽  
Vol 15-17 ◽  
pp. 315-320 ◽  
Author(s):  
Franz Moraw ◽  
Khalid Fatih ◽  
David Wilkinson ◽  
François Girard
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Fuel Cell ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Operating Conditions ◽  
Ferric Ions ◽  
Fuel Cell Cathode ◽  
Cell Cathode

The use of redox fuel cells, in which oxygen is replaced by other oxidants such as ferric ions, can have significant advantages. The redox fuel cell can achieve high efficiencies and has other fuel cell advantages. Bioregeneration is one method of creating a closed cathode system with efficient catholyte regeneration. In the work discussed here, a Fe3+/Fe2+ redox simulated bio-electrolyte catholyte is characterized over a range of electrolyte concentrations and fuel cell operating conditions using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS).

scholarly journals Preparation and Characterization of Ionic Liquid-based Electrodes for High Temperature Fuel Cells Using Cyclic Voltammetry

2013 ◽  
Vol 16 (1) ◽  
pp. 30-38 ◽  
Author(s):  
Sung-Kwan Ryu ◽  
Young-Woo Choi ◽  
Chang-Soo Kim ◽  
Tae-Hyun Yang ◽  
Han-Sung Kim ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Ionic Liquid ◽  
Fuel Cells ◽  
High Temperature

Cyclic Voltammetry Investigation of Organic Species Considered for Use as Catalysts in Direct-Carbohydrate Fuel Cells

2012 ◽  
Vol 159 (11) ◽  
pp. H834-H841 ◽  
Author(s):  
Dane C. Hansen ◽  
Yining Pan ◽  
James Stockton ◽  
William G. Pitt ◽  
Dean R. Wheeler
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Organic Species

Gas diffusion layer wettability determination by cyclic voltammetry for automotive fuel cells

Fuel Cells ◽  
2021 ◽  
Author(s):  
Michael Obermaier ◽  
Andreas Bauer ◽  
Mert Dalkilic ◽  
Markus Rauber ◽  
Christina Scheu
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Diffusion Layer ◽  
Gas Diffusion Layer ◽  
Gas Diffusion ◽  
Automotive Fuel
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