Effect of Oxidant/Monomer ratio on the electrical properties of polypyrrole in tantalum capacitors

Elvira Maria Correia Fortunato; Rodrigo Ferrão de Paiva Martins

doi:10.4028/www.scientific.net/MSF.514-516.43

Effect of Oxidant/Monomer ratio on the electrical properties of polypyrrole in tantalum capacitors

Elvira Maria Correia Fortunato, Rodrigo Ferrão de Paiva Martins

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

In this work, the relation between oxidant/monomer ratio and the electrical conductivity of polypyrrole was studied using different ratios. We achieved a maximum value for electrical conductivity of 7.5 S/cm for a ratio of 2:1. We also developed a chemical dip-coating process to produce the cathode layer in tantalum capacitors. We obtained capacitances of about 80 mu F after 8 cycles using the sequence Monomer/Oxidant.

Original language	English
Title of host publication	Materials Science Forum
Pages	43-47
Number of pages	5
Volume	514-516
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.514-516.43
Publication status	Published - 15 May 2006
Event	3rd International Materials Symposium/12th Meeting of the Sociedad-Portuguesa-da-Materials - Duration: 1 Jan 2005 → …

Conference

Conference	3rd International Materials Symposium/12th Meeting of the Sociedad-Portuguesa-da-Materials
Period	1/01/05 → …

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title = "Effect of Oxidant/Monomer ratio on the electrical properties of polypyrrole in tantalum capacitors",

abstract = "In this work, the relation between oxidant/monomer ratio and the electrical conductivity of polypyrrole was studied using different ratios. We achieved a maximum value for electrical conductivity of 7.5 S/cm for a ratio of 2:1. We also developed a chemical dip-coating process to produce the cathode layer in tantalum capacitors. We obtained capacitances of about 80 mu F after 8 cycles using the sequence Monomer/Oxidant.",

keywords = "polypyrrole, tantalum capacitors, chemical polymerization",

author = "Fortunato, {Elvira Maria Correia} and Martins, {Rodrigo Ferr{\~a}o de Paiva}",

year = "2006",

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language = "English",

volume = "514-516",

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AU - Fortunato, Elvira Maria Correia

AU - Martins, Rodrigo Ferrão de Paiva

PY - 2006/5/15

Y1 - 2006/5/15

N2 - In this work, the relation between oxidant/monomer ratio and the electrical conductivity of polypyrrole was studied using different ratios. We achieved a maximum value for electrical conductivity of 7.5 S/cm for a ratio of 2:1. We also developed a chemical dip-coating process to produce the cathode layer in tantalum capacitors. We obtained capacitances of about 80 mu F after 8 cycles using the sequence Monomer/Oxidant.

AB - In this work, the relation between oxidant/monomer ratio and the electrical conductivity of polypyrrole was studied using different ratios. We achieved a maximum value for electrical conductivity of 7.5 S/cm for a ratio of 2:1. We also developed a chemical dip-coating process to produce the cathode layer in tantalum capacitors. We obtained capacitances of about 80 mu F after 8 cycles using the sequence Monomer/Oxidant.

KW - polypyrrole

KW - tantalum capacitors

KW - chemical polymerization

U2 - 10.4028/www.scientific.net/MSF.514-516.43

DO - 10.4028/www.scientific.net/MSF.514-516.43

M3 - Conference contribution

VL - 514-516

SP - 43

EP - 47

BT - Materials Science Forum

T2 - 3rd International Materials Symposium/12th Meeting of the Sociedad-Portuguesa-da-Materials

Y2 - 1 January 2005

ER -