Marina Elizabeth Rincón González

UNAM, Instituto de Energías Renovables
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Título:

Carbon nanofiber and PEDOT-PPS bylayer systems as electrodes for symmetric and asymmetric Electrochemical capacitor cells

Autor:

A.K Cuentas-Gallegos, Marina E Rincón J. Power Sour

Resumen:

In this work, we describe the fabrication of electrodes based on carbon nanofibers (NFC), bilayer systems of NFC and a commercial polythiophene (PEDOT-PSS), and NFC/PEDOT-PSS composites, for symmetric and asymmetric electrochemical capacitor (EC) cells. The basic electrochemical characterization was carried o...

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Título:

Electrochemical Supercapacitors based on Novel Hybrid Materials made of Carbon Nanotubes and Polyoxometalates

Autor:

A. Karina Cuentas-Gallegos, Rosa Martínez-Rosales, Mihaela Baibarac, Pedro Gómez-Romero, and Marina E. Rincón

Resumen:

We have characterized symmetric solid-state supercapacitors in swagelok cells using film electrodes made of novel hybrid materials based on multiwalled carbon nanotubes (CNT) and phosphomolybdate polyanion (Cs-PMo12) with PVA as binder. These hybrid materials were carried out by Cs-PMo12 adhesion onto previou...

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Título:

The Effect of Binder in Electrode Materials for Capacitance Improvement and EDLC Binder-free Cell Design

Autor:

R. López-Chavéz, A.K. Cuentas-Gallegos

Resumen:

In the present work we show results related with the influence of the binder type used to elaborate active electrodes made of activated carbon (DLC) for the assembly of supercapacitor cells. A Nafion 5%w solution and/or Kinar Flex (Polyvinylidene fluoride, PVDF) were used as binders at different concentration...

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Título:

Capacitance Improvement of Carbon Aerogels by the immobilization of Polyoxometalates Nanoparticles

Autor:

D.A. Baeza-Rostro, A. K. Cuentas-Gallegos

Resumen:

A hybrid material based on the immobilization of H3PMo12O40 polyoxometalate nanoparticles (POM) was obtained by using an activated carbon aerogel (ACPQ2-100) matrix, and was tested as a potential electrode material for a supercapacitor cell. A chemical activation with KOH was carried out in the carbon aerogel...

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Título:

Porosity and Surface Modifications on Carbon Materials for Capacitance Improvement

Autor:

A.K. Cuentas-Gallegos, N. Rayón-López, L.M. Mejía, H. Villafán Vidales, M. Miranda-Hernández, M. Robles, J. Muñiz-Soria

Resumen:

Supercapacitors (SC) are energy storage devices with higher power but lower energy density than Li batteries. SC store energy based on two mechanisms: double layer capacitance (non-Faradaic) and pseudocapacitance (faradaic). Porous carbon materials have been extensively used as electrodes in SC, where their g...

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