High-Performance Hydroxide Exchange Membrane Fuel Cell Comprising an Atomic Layer-Deposited Silver Cathode

Jong Seon Park; Beum Geun Seo; Junmo Koo; Jin Hyuk Lim; Yong Seok Lee; Gwon Deok Han; Fritz B. Prinz; Joon Hyung Shim

doi:10.1021/acs.nanolett.3c01347

High-Performance Hydroxide Exchange Membrane Fuel Cell Comprising an Atomic Layer-Deposited Silver Cathode

Jong Seon Park, Beum Geun Seo, Junmo Koo, Jin Hyuk Lim, Yong Seok Lee, Gwon Deok Han, Fritz B. Prinz, Joon Hyung Shim

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Atomic layer deposition (ALD) is emerging as an efficient tool for the precise manufacture of catalysts, owing to its sophisticated surface tailoring capabilities. To overcome the techno-economic limitations of fuel cell electric vehicles (FCEVs), which are considered suitable alternatives to battery electric vehicles (BEVs), the development of cost-efficient high-performance catalysts is essential. In this study, we successfully fabricated a Pt-free cathode for a hydroxide exchange membrane fuel cell (HEMFC) with excellent oxygen reduction activity under extremely low loading of Ag electrocatalysts using ALD. Microstructural analysis confirmed that the surface modification by ALD-Ag nanoparticles exhibited excellent step coverage characteristics on porous carbon nanotubes (CNTs). An HEMFC comprising a CNT cathode surface-decorated with ALD-Ag nanoparticles delivered a high peak power density of 2154 mW mg_Ag^-1 in an alkaline environment at 65 °C. This study demonstrates the applicability of ALD for the manufacture of highly active low-cost electrocatalysts for high-performance HEMFCs.

Original language	English
Pages (from-to)	7825-7830
Number of pages	6
Journal	Nano Letters
Volume	23
Issue number	17
DOIs	https://doi.org/10.1021/acs.nanolett.3c01347
Publication status	Published - 2023 Sept 13

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

Keywords

PGM-free catalyst
atomic layer deposition
cathode
hydroxide exchange membrane fuel cell
silver

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/acs.nanolett.3c01347

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title = "High-Performance Hydroxide Exchange Membrane Fuel Cell Comprising an Atomic Layer-Deposited Silver Cathode",

abstract = "Atomic layer deposition (ALD) is emerging as an efficient tool for the precise manufacture of catalysts, owing to its sophisticated surface tailoring capabilities. To overcome the techno-economic limitations of fuel cell electric vehicles (FCEVs), which are considered suitable alternatives to battery electric vehicles (BEVs), the development of cost-efficient high-performance catalysts is essential. In this study, we successfully fabricated a Pt-free cathode for a hydroxide exchange membrane fuel cell (HEMFC) with excellent oxygen reduction activity under extremely low loading of Ag electrocatalysts using ALD. Microstructural analysis confirmed that the surface modification by ALD-Ag nanoparticles exhibited excellent step coverage characteristics on porous carbon nanotubes (CNTs). An HEMFC comprising a CNT cathode surface-decorated with ALD-Ag nanoparticles delivered a high peak power density of 2154 mW mgAg-1 in an alkaline environment at 65 °C. This study demonstrates the applicability of ALD for the manufacture of highly active low-cost electrocatalysts for high-performance HEMFCs.",

keywords = "PGM-free catalyst, atomic layer deposition, cathode, hydroxide exchange membrane fuel cell, silver",

author = "Park, {Jong Seon} and Seo, {Beum Geun} and Junmo Koo and Lim, {Jin Hyuk} and Lee, {Yong Seok} and Han, {Gwon Deok} and Prinz, {Fritz B.} and Shim, {Joon Hyung}",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

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doi = "10.1021/acs.nanolett.3c01347",

language = "English",

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T1 - High-Performance Hydroxide Exchange Membrane Fuel Cell Comprising an Atomic Layer-Deposited Silver Cathode

AU - Park, Jong Seon

AU - Seo, Beum Geun

AU - Koo, Junmo

AU - Lim, Jin Hyuk

AU - Lee, Yong Seok

AU - Han, Gwon Deok

AU - Prinz, Fritz B.

AU - Shim, Joon Hyung

PY - 2023/9/13

Y1 - 2023/9/13

N2 - Atomic layer deposition (ALD) is emerging as an efficient tool for the precise manufacture of catalysts, owing to its sophisticated surface tailoring capabilities. To overcome the techno-economic limitations of fuel cell electric vehicles (FCEVs), which are considered suitable alternatives to battery electric vehicles (BEVs), the development of cost-efficient high-performance catalysts is essential. In this study, we successfully fabricated a Pt-free cathode for a hydroxide exchange membrane fuel cell (HEMFC) with excellent oxygen reduction activity under extremely low loading of Ag electrocatalysts using ALD. Microstructural analysis confirmed that the surface modification by ALD-Ag nanoparticles exhibited excellent step coverage characteristics on porous carbon nanotubes (CNTs). An HEMFC comprising a CNT cathode surface-decorated with ALD-Ag nanoparticles delivered a high peak power density of 2154 mW mgAg-1 in an alkaline environment at 65 °C. This study demonstrates the applicability of ALD for the manufacture of highly active low-cost electrocatalysts for high-performance HEMFCs.

AB - Atomic layer deposition (ALD) is emerging as an efficient tool for the precise manufacture of catalysts, owing to its sophisticated surface tailoring capabilities. To overcome the techno-economic limitations of fuel cell electric vehicles (FCEVs), which are considered suitable alternatives to battery electric vehicles (BEVs), the development of cost-efficient high-performance catalysts is essential. In this study, we successfully fabricated a Pt-free cathode for a hydroxide exchange membrane fuel cell (HEMFC) with excellent oxygen reduction activity under extremely low loading of Ag electrocatalysts using ALD. Microstructural analysis confirmed that the surface modification by ALD-Ag nanoparticles exhibited excellent step coverage characteristics on porous carbon nanotubes (CNTs). An HEMFC comprising a CNT cathode surface-decorated with ALD-Ag nanoparticles delivered a high peak power density of 2154 mW mgAg-1 in an alkaline environment at 65 °C. This study demonstrates the applicability of ALD for the manufacture of highly active low-cost electrocatalysts for high-performance HEMFCs.

KW - PGM-free catalyst

KW - atomic layer deposition

KW - cathode

KW - hydroxide exchange membrane fuel cell

KW - silver

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JF - Nano Letters

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High-Performance Hydroxide Exchange Membrane Fuel Cell Comprising an Atomic Layer-Deposited Silver Cathode

Abstract

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Keywords

ASJC Scopus subject areas

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