Biotemplated Palladium Catalysts Can Be Stabilized on Different Support Materials

Matthew D. Yates, Bruce E. Logan

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Sustainably biotemplated palladium catalysts generated on different carbon-based support materials are examined for durability under electrochemical (oxidative) and mechanical-stress conditions. Biotemplated catalysts on carbon paper under both stresses retain 95% (at 0.6V) of the initial catalytic activity as opposed to 70% for carbon cloth and 60% for graphite. Graphite electrodes retain 95% of initial catalytic activity under a single stress. Using electrodeposited polyaniline (PANI) and polydimethylsiloxane binder increases the current density after the stress tests by 22%, as opposed to a 30% decrease for Nafion. PANI-coated electrodes retain more activity than carbon-paper electrodes under elevated mechanical (94 versus 70%) or increased oxidative (175 versus 62%) stress. Biotemplated catalytic electrodes may be useful alternatives to synthetically produce catalysts for some electrochemical applications. Sustainable electrode fabrication: The biotemplated synthesis of catalytic porous electrodes is a sustainable process and, according to the results of durability tests under electrochemical and mechanical stress, these electrodes (e.g. the Pd/carbon paper electrode shown in the picture) are durable enough to replace catalytic electrodes based on synthetic materials in certain applications.

Original languageEnglish (US)
Pages (from-to)1867-1873
Number of pages7
JournalChemElectroChem
Volume1
Issue number11
DOIs
StatePublished - Nov 1 2014

Fingerprint

Palladium
Catalyst supports
Electrodes
Catalysts
Carbon
Polyaniline
Catalyst activity
Durability
Graphite electrodes
Graphite
Polydimethylsiloxane
Binders
Current density
Fabrication

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electrochemistry

Cite this

@article{03ca4e78044646f2b7f453326821937e,
title = "Biotemplated Palladium Catalysts Can Be Stabilized on Different Support Materials",
abstract = "Sustainably biotemplated palladium catalysts generated on different carbon-based support materials are examined for durability under electrochemical (oxidative) and mechanical-stress conditions. Biotemplated catalysts on carbon paper under both stresses retain 95{\%} (at 0.6V) of the initial catalytic activity as opposed to 70{\%} for carbon cloth and 60{\%} for graphite. Graphite electrodes retain 95{\%} of initial catalytic activity under a single stress. Using electrodeposited polyaniline (PANI) and polydimethylsiloxane binder increases the current density after the stress tests by 22{\%}, as opposed to a 30{\%} decrease for Nafion. PANI-coated electrodes retain more activity than carbon-paper electrodes under elevated mechanical (94 versus 70{\%}) or increased oxidative (175 versus 62{\%}) stress. Biotemplated catalytic electrodes may be useful alternatives to synthetically produce catalysts for some electrochemical applications. Sustainable electrode fabrication: The biotemplated synthesis of catalytic porous electrodes is a sustainable process and, according to the results of durability tests under electrochemical and mechanical stress, these electrodes (e.g. the Pd/carbon paper electrode shown in the picture) are durable enough to replace catalytic electrodes based on synthetic materials in certain applications.",
author = "Yates, {Matthew D.} and Logan, {Bruce E.}",
year = "2014",
month = "11",
day = "1",
doi = "10.1002/celc.201402124",
language = "English (US)",
volume = "1",
pages = "1867--1873",
journal = "ChemElectroChem",
issn = "2196-0216",
publisher = "John Wiley and Sons Ltd",
number = "11",

}

Biotemplated Palladium Catalysts Can Be Stabilized on Different Support Materials. / Yates, Matthew D.; Logan, Bruce E.

In: ChemElectroChem, Vol. 1, No. 11, 01.11.2014, p. 1867-1873.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Biotemplated Palladium Catalysts Can Be Stabilized on Different Support Materials

AU - Yates, Matthew D.

AU - Logan, Bruce E.

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Sustainably biotemplated palladium catalysts generated on different carbon-based support materials are examined for durability under electrochemical (oxidative) and mechanical-stress conditions. Biotemplated catalysts on carbon paper under both stresses retain 95% (at 0.6V) of the initial catalytic activity as opposed to 70% for carbon cloth and 60% for graphite. Graphite electrodes retain 95% of initial catalytic activity under a single stress. Using electrodeposited polyaniline (PANI) and polydimethylsiloxane binder increases the current density after the stress tests by 22%, as opposed to a 30% decrease for Nafion. PANI-coated electrodes retain more activity than carbon-paper electrodes under elevated mechanical (94 versus 70%) or increased oxidative (175 versus 62%) stress. Biotemplated catalytic electrodes may be useful alternatives to synthetically produce catalysts for some electrochemical applications. Sustainable electrode fabrication: The biotemplated synthesis of catalytic porous electrodes is a sustainable process and, according to the results of durability tests under electrochemical and mechanical stress, these electrodes (e.g. the Pd/carbon paper electrode shown in the picture) are durable enough to replace catalytic electrodes based on synthetic materials in certain applications.

AB - Sustainably biotemplated palladium catalysts generated on different carbon-based support materials are examined for durability under electrochemical (oxidative) and mechanical-stress conditions. Biotemplated catalysts on carbon paper under both stresses retain 95% (at 0.6V) of the initial catalytic activity as opposed to 70% for carbon cloth and 60% for graphite. Graphite electrodes retain 95% of initial catalytic activity under a single stress. Using electrodeposited polyaniline (PANI) and polydimethylsiloxane binder increases the current density after the stress tests by 22%, as opposed to a 30% decrease for Nafion. PANI-coated electrodes retain more activity than carbon-paper electrodes under elevated mechanical (94 versus 70%) or increased oxidative (175 versus 62%) stress. Biotemplated catalytic electrodes may be useful alternatives to synthetically produce catalysts for some electrochemical applications. Sustainable electrode fabrication: The biotemplated synthesis of catalytic porous electrodes is a sustainable process and, according to the results of durability tests under electrochemical and mechanical stress, these electrodes (e.g. the Pd/carbon paper electrode shown in the picture) are durable enough to replace catalytic electrodes based on synthetic materials in certain applications.

UR - http://www.scopus.com/inward/record.url?scp=84943757094&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84943757094&partnerID=8YFLogxK

U2 - 10.1002/celc.201402124

DO - 10.1002/celc.201402124

M3 - Article

AN - SCOPUS:84943757094

VL - 1

SP - 1867

EP - 1873

JO - ChemElectroChem

JF - ChemElectroChem

SN - 2196-0216

IS - 11

ER -