Temperature effect of electrochemically roughened gold substrates on polymerization electrocatalysis of polypyrrole

Kuang Hsuan Yang, Yu Chuan Liu, Chung Chin Yu

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In this work, electrochemical methods were used to prepare complexes with Au and Cl species on bulk Au substrates. Then the electrochemically roughened Au substrates were further heat-treated at different temperatures. The effect of temperatures used in heat treatments between 25 and 100 °C on electrocatalytical polymerization of polypyrrole (PPy) formed on the prepared gold substrates was first investigated. The result indicates that the optimally electrocatalytical capability of the heat-treated Au substrate for PPy polymerization is at 75 °C. Moreover, the autopolymerized PPy on the roughened Au substrate treated at 75 °C demonstrates the highest oxidation level and oxidation degree of 0.32 and 0.50, respectively. Primary results indicate that complexes with positively charged Au act as oxidants, and perchlorate and chloride ions act as dopants for the oxidation-polymerization of PPy.

Original languageEnglish
Pages (from-to)40-46
Number of pages7
JournalAnalytica Chimica Acta
Volume631
Issue number1
DOIs
Publication statusPublished - Jan 5 2009
Externally publishedYes

Fingerprint

Electrocatalysis
temperature effect
polymerization
Polymerization
Gold
Thermal effects
gold
substrate
Temperature
Substrates
Hot Temperature
oxidation
Oxidation
electrochemical method
perchlorate
Oxidants
oxidant
polypyrrole
Chlorides
temperature

Keywords

  • Electrocatalytical polymerization
  • Gold
  • Polypyrrole
  • Temperature

ASJC Scopus subject areas

  • Biochemistry
  • Analytical Chemistry
  • Spectroscopy
  • Environmental Chemistry

Cite this

Temperature effect of electrochemically roughened gold substrates on polymerization electrocatalysis of polypyrrole. / Yang, Kuang Hsuan; Liu, Yu Chuan; Yu, Chung Chin.

In: Analytica Chimica Acta, Vol. 631, No. 1, 05.01.2009, p. 40-46.

Research output: Contribution to journalArticle

@article{57a68101471e47a480fd83b04c0c3bbb,
title = "Temperature effect of electrochemically roughened gold substrates on polymerization electrocatalysis of polypyrrole",
abstract = "In this work, electrochemical methods were used to prepare complexes with Au and Cl species on bulk Au substrates. Then the electrochemically roughened Au substrates were further heat-treated at different temperatures. The effect of temperatures used in heat treatments between 25 and 100 °C on electrocatalytical polymerization of polypyrrole (PPy) formed on the prepared gold substrates was first investigated. The result indicates that the optimally electrocatalytical capability of the heat-treated Au substrate for PPy polymerization is at 75 °C. Moreover, the autopolymerized PPy on the roughened Au substrate treated at 75 °C demonstrates the highest oxidation level and oxidation degree of 0.32 and 0.50, respectively. Primary results indicate that complexes with positively charged Au act as oxidants, and perchlorate and chloride ions act as dopants for the oxidation-polymerization of PPy.",
keywords = "Electrocatalytical polymerization, Gold, Polypyrrole, Temperature",
author = "Yang, {Kuang Hsuan} and Liu, {Yu Chuan} and Yu, {Chung Chin}",
year = "2009",
month = "1",
day = "5",
doi = "10.1016/j.aca.2008.10.018",
language = "English",
volume = "631",
pages = "40--46",
journal = "Analytica Chimica Acta",
issn = "0003-2670",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Temperature effect of electrochemically roughened gold substrates on polymerization electrocatalysis of polypyrrole

AU - Yang, Kuang Hsuan

AU - Liu, Yu Chuan

AU - Yu, Chung Chin

PY - 2009/1/5

Y1 - 2009/1/5

N2 - In this work, electrochemical methods were used to prepare complexes with Au and Cl species on bulk Au substrates. Then the electrochemically roughened Au substrates were further heat-treated at different temperatures. The effect of temperatures used in heat treatments between 25 and 100 °C on electrocatalytical polymerization of polypyrrole (PPy) formed on the prepared gold substrates was first investigated. The result indicates that the optimally electrocatalytical capability of the heat-treated Au substrate for PPy polymerization is at 75 °C. Moreover, the autopolymerized PPy on the roughened Au substrate treated at 75 °C demonstrates the highest oxidation level and oxidation degree of 0.32 and 0.50, respectively. Primary results indicate that complexes with positively charged Au act as oxidants, and perchlorate and chloride ions act as dopants for the oxidation-polymerization of PPy.

AB - In this work, electrochemical methods were used to prepare complexes with Au and Cl species on bulk Au substrates. Then the electrochemically roughened Au substrates were further heat-treated at different temperatures. The effect of temperatures used in heat treatments between 25 and 100 °C on electrocatalytical polymerization of polypyrrole (PPy) formed on the prepared gold substrates was first investigated. The result indicates that the optimally electrocatalytical capability of the heat-treated Au substrate for PPy polymerization is at 75 °C. Moreover, the autopolymerized PPy on the roughened Au substrate treated at 75 °C demonstrates the highest oxidation level and oxidation degree of 0.32 and 0.50, respectively. Primary results indicate that complexes with positively charged Au act as oxidants, and perchlorate and chloride ions act as dopants for the oxidation-polymerization of PPy.

KW - Electrocatalytical polymerization

KW - Gold

KW - Polypyrrole

KW - Temperature

UR - http://www.scopus.com/inward/record.url?scp=56949096615&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56949096615&partnerID=8YFLogxK

U2 - 10.1016/j.aca.2008.10.018

DO - 10.1016/j.aca.2008.10.018

M3 - Article

C2 - 19046676

AN - SCOPUS:56949096615

VL - 631

SP - 40

EP - 46

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

SN - 0003-2670

IS - 1

ER -