Intrinsically microporous polymer slows down fuel cell catalyst corrosion

Daping He; Yuanyang Rong; Zongkui Kou; Shichun Mu; Tao Peng; Richard Malpass-Evans; Mariolino Carta; Neil B. McKeown; Frank Marken

doi:10.1016/j.elecom.2015.07.008

Intrinsically microporous polymer slows down fuel cell catalyst corrosion

Daping He, Yuanyang Rong, Zongkui Kou, Shichun Mu, Tao Peng, Richard Malpass-Evans, Mariolino Carta, Neil B. McKeown, Frank Marken

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Abstract

The limited stability of fuel cell cathode catalysts causes a significant loss of operational cell voltage with commercial Pt-based catalysts, which hinders the wider commercialization of fuel cell technologies. We demonstrate beneficial effects of a highly rigid and porous polymer of intrinsic microporosity (PIM-EA-TB with BET surface area 1027 m²g- ¹) in accelerated catalyst corrosion experiments. Porous films of PIM-EA-TB offer an effective protective matrix for the prevention of Pt/C catalyst corrosion without impeding flux of reagents. The results of electrochemical cycling tests show that the PIM-EA-TB protected Pt/C (denoted here as PIM@Pt/C) exhibit a significantly enhanced durability as compared to a conventional Pt/C catalyst.

Original language	English
Pages (from-to)	72-76
Number of pages	5
Journal	Electrochemistry Communications
Volume	59
Early online date	23 Jul 2015
DOIs	https://doi.org/10.1016/j.elecom.2015.07.008
Publication status	Published - Oct 2015

Keywords

Corrosion
Electrocatalysis
Fuel cells
Membrane
Stabilization

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10.1016/j.elecom.2015.07.008

intrinsically microporous polymer slows down fuel cell
Published version is available via: http://dx.doi.org/10.1016/j.elecom.2015.07.008
Submitted manuscript, 1.03 MBLicence: CC BY-NC-ND

Cite this

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title = "Intrinsically microporous polymer slows down fuel cell catalyst corrosion",

abstract = "The limited stability of fuel cell cathode catalysts causes a significant loss of operational cell voltage with commercial Pt-based catalysts, which hinders the wider commercialization of fuel cell technologies. We demonstrate beneficial effects of a highly rigid and porous polymer of intrinsic microporosity (PIM-EA-TB with BET surface area 1027 m2g- 1) in accelerated catalyst corrosion experiments. Porous films of PIM-EA-TB offer an effective protective matrix for the prevention of Pt/C catalyst corrosion without impeding flux of reagents. The results of electrochemical cycling tests show that the PIM-EA-TB protected Pt/C (denoted here as PIM@Pt/C) exhibit a significantly enhanced durability as compared to a conventional Pt/C catalyst.",

keywords = "Corrosion, Electrocatalysis, Fuel cells, Membrane, Stabilization",

author = "Daping He and Yuanyang Rong and Zongkui Kou and Shichun Mu and Tao Peng and Richard Malpass-Evans and Mariolino Carta and McKeown, \{Neil B.\} and Frank Marken",

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doi = "10.1016/j.elecom.2015.07.008",

language = "English",

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journal = "Electrochemistry Communications",

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T1 - Intrinsically microporous polymer slows down fuel cell catalyst corrosion

AU - He, Daping

AU - Rong, Yuanyang

AU - Kou, Zongkui

AU - Mu, Shichun

AU - Peng, Tao

AU - Malpass-Evans, Richard

AU - Carta, Mariolino

AU - McKeown, Neil B.

AU - Marken, Frank

PY - 2015/10

Y1 - 2015/10

N2 - The limited stability of fuel cell cathode catalysts causes a significant loss of operational cell voltage with commercial Pt-based catalysts, which hinders the wider commercialization of fuel cell technologies. We demonstrate beneficial effects of a highly rigid and porous polymer of intrinsic microporosity (PIM-EA-TB with BET surface area 1027 m2g- 1) in accelerated catalyst corrosion experiments. Porous films of PIM-EA-TB offer an effective protective matrix for the prevention of Pt/C catalyst corrosion without impeding flux of reagents. The results of electrochemical cycling tests show that the PIM-EA-TB protected Pt/C (denoted here as PIM@Pt/C) exhibit a significantly enhanced durability as compared to a conventional Pt/C catalyst.

AB - The limited stability of fuel cell cathode catalysts causes a significant loss of operational cell voltage with commercial Pt-based catalysts, which hinders the wider commercialization of fuel cell technologies. We demonstrate beneficial effects of a highly rigid and porous polymer of intrinsic microporosity (PIM-EA-TB with BET surface area 1027 m2g- 1) in accelerated catalyst corrosion experiments. Porous films of PIM-EA-TB offer an effective protective matrix for the prevention of Pt/C catalyst corrosion without impeding flux of reagents. The results of electrochemical cycling tests show that the PIM-EA-TB protected Pt/C (denoted here as PIM@Pt/C) exhibit a significantly enhanced durability as compared to a conventional Pt/C catalyst.

KW - Corrosion

KW - Electrocatalysis

KW - Fuel cells

KW - Membrane

KW - Stabilization

UR - https://www.scopus.com/pages/publications/84938230702

UR - http://dx.doi.org/10.1016/j.elecom.2015.07.008

U2 - 10.1016/j.elecom.2015.07.008

DO - 10.1016/j.elecom.2015.07.008

M3 - Article

AN - SCOPUS:84938230702

SN - 1388-2481

VL - 59

SP - 72

EP - 76

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

Intrinsically microporous polymer slows down fuel cell catalyst corrosion

Abstract

Keywords

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