One-step preparation of microporous Pd@cPIM composite catalyst film for triphasic electrocatalysis

Shi Xuan Leong, Mariolino Carta, Richard Malpass-evans, Neil B. Mckeown, Elena Madrid, Frank Marken

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Triphasic microporous materials (containing solid, liquid, and gas) are of interest in electrocatalysis. In this exploratory study, a polymer of intrinsic microporosity (PIM-EA-TB) is impregnated with PdCl4 2 − metal precursor and vacuum‑carbonised to give an electrically conductive microporous heterocarbon with embedded Pd nanoparticles of typically 10–30 nm diameter. This microporous composite catalyst is formed (via spin-coating) as “flakes” of typically 100 nm thickness and 1 to 20 μm diameter that are readily re-deposited onto glassy carbon electrode substrates. Due to the triphasic conditions, Pd@cPIM electrocatalytic reactivity is high but only for gases (H2 oxidation or O2 reduction). This selectivity is observed even in the presence of excess formic acid fuel in the aqueous/liquid phase. The potential for application in membrane-less micro-fuel cells is discussed.

Original languageEnglish
Pages (from-to)17-20
Number of pages4
JournalElectrochemistry Communications
Volume86
Early online date8 Nov 2017
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Electrocatalysis
formic acid
Gases
Microporous materials
Microporosity
Catalysts
Formic acid
Glassy carbon
Composite materials
Spin coating
Liquids
Fuel cells
Polymers
Metals
Vacuum
Nanoparticles
Membranes
Oxidation
Electrodes
Substrates

Keywords

  • CO reduction
  • Fuel cell
  • Gas binding
  • Microporosity
  • Triple phase reaction zone

ASJC Scopus subject areas

  • Electrochemistry

Cite this

One-step preparation of microporous Pd@cPIM composite catalyst film for triphasic electrocatalysis. / Leong, Shi Xuan; Carta, Mariolino; Malpass-evans, Richard; Mckeown, Neil B.; Madrid, Elena; Marken, Frank.

In: Electrochemistry Communications, Vol. 86, 01.01.2018, p. 17-20.

Research output: Contribution to journalArticle

Leong, Shi Xuan ; Carta, Mariolino ; Malpass-evans, Richard ; Mckeown, Neil B. ; Madrid, Elena ; Marken, Frank. / One-step preparation of microporous Pd@cPIM composite catalyst film for triphasic electrocatalysis. In: Electrochemistry Communications. 2018 ; Vol. 86. pp. 17-20.
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