Synthesis of Pt nanocatalyst with micelle-encapsulated multi-walled carbon nanotubes as support for proton exchange membrane fuel cells

J. F. Lin; C. W. Mason; A. Adame; X. Liu; Xihong Peng; Arunachala Mada Kannan

doi:10.1016/j.electacta.2010.06.032

Synthesis of Pt nanocatalyst with micelle-encapsulated multi-walled carbon nanotubes as support for proton exchange membrane fuel cells

J. F. Lin, C. W. Mason, A. Adame, X. Liu, Xihong Peng, Arunachala Mada Kannan

Advanced Technology Innovation Center (ATIC)

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

17 Scopus citations

Abstract

Micelle-encapsulated multi-walled carbon nanotubes (MWCNTs) with sodium dodecyl sulfate (SDS) were used as catalyst support to deposit platinum nanoparticles. High resolution transmission electron microscopy (HRTEM) images reveal the crystalline nature of Pt nanoparticles with a diameter of ∼4 nm on the surface of MWCNTs. A single proton exchange membrane fuel cell (PEMFC) with total catalyst loading of 0.2 mg Pt cm^-2 (anode 0.1 and cathode 0.1 mg Pt cm^-2, respectively) has been evaluated at 80 °C with H₂ and O₂ gases using Nafion-212 electrolyte. Pt/MWCNTs synthesized by using modified SDS-MWCNTs with high temperature treatment (250 °C) showed a peak power density of 950 mW cm^-2. Accelerated durability evaluation was carried out by conducting 1500 potential cycles between 0.1 and 1.2 V with 50 mV s^-1 scan rate, H₂/N ₂ at 80 °C. The membrane electrode assembly (MEA) with Pt/MWCNTs showed superior performance stability with a power density degradation of only ∼30% compared to commercial Pt/C (70%) after potential cycles.

Original language	English (US)
Pages (from-to)	6496-6500
Number of pages	5
Journal	Electrochimica Acta
Volume	55
Issue number	22
DOIs	https://doi.org/10.1016/j.electacta.2010.06.032
State	Published - Sep 1 2010

Keywords

Carbon nanotubes
Micelle structure
Platinum nanoparticles
Proton exchange membrane fuel cell

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

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10.1016/j.electacta.2010.06.032

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title = "Synthesis of Pt nanocatalyst with micelle-encapsulated multi-walled carbon nanotubes as support for proton exchange membrane fuel cells",

abstract = "Micelle-encapsulated multi-walled carbon nanotubes (MWCNTs) with sodium dodecyl sulfate (SDS) were used as catalyst support to deposit platinum nanoparticles. High resolution transmission electron microscopy (HRTEM) images reveal the crystalline nature of Pt nanoparticles with a diameter of ∼4 nm on the surface of MWCNTs. A single proton exchange membrane fuel cell (PEMFC) with total catalyst loading of 0.2 mg Pt cm-2 (anode 0.1 and cathode 0.1 mg Pt cm-2, respectively) has been evaluated at 80 °C with H2 and O2 gases using Nafion-212 electrolyte. Pt/MWCNTs synthesized by using modified SDS-MWCNTs with high temperature treatment (250 °C) showed a peak power density of 950 mW cm-2. Accelerated durability evaluation was carried out by conducting 1500 potential cycles between 0.1 and 1.2 V with 50 mV s-1 scan rate, H2/N 2 at 80 °C. The membrane electrode assembly (MEA) with Pt/MWCNTs showed superior performance stability with a power density degradation of only ∼30% compared to commercial Pt/C (70%) after potential cycles.",

keywords = "Carbon nanotubes, Micelle structure, Platinum nanoparticles, Proton exchange membrane fuel cell",

author = "Lin, {J. F.} and Mason, {C. W.} and A. Adame and X. Liu and Xihong Peng and {Mada Kannan}, Arunachala",

note = "Funding Information: Financial support from the Arizona State University is gratefully acknowledged. A.A. acknowledges a student assistantship from ASU/NASA Space grant.",

year = "2010",

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T1 - Synthesis of Pt nanocatalyst with micelle-encapsulated multi-walled carbon nanotubes as support for proton exchange membrane fuel cells

AU - Lin, J. F.

AU - Mason, C. W.

AU - Adame, A.

AU - Liu, X.

AU - Peng, Xihong

AU - Mada Kannan, Arunachala

N1 - Funding Information: Financial support from the Arizona State University is gratefully acknowledged. A.A. acknowledges a student assistantship from ASU/NASA Space grant.

PY - 2010/9/1

Y1 - 2010/9/1

N2 - Micelle-encapsulated multi-walled carbon nanotubes (MWCNTs) with sodium dodecyl sulfate (SDS) were used as catalyst support to deposit platinum nanoparticles. High resolution transmission electron microscopy (HRTEM) images reveal the crystalline nature of Pt nanoparticles with a diameter of ∼4 nm on the surface of MWCNTs. A single proton exchange membrane fuel cell (PEMFC) with total catalyst loading of 0.2 mg Pt cm-2 (anode 0.1 and cathode 0.1 mg Pt cm-2, respectively) has been evaluated at 80 °C with H2 and O2 gases using Nafion-212 electrolyte. Pt/MWCNTs synthesized by using modified SDS-MWCNTs with high temperature treatment (250 °C) showed a peak power density of 950 mW cm-2. Accelerated durability evaluation was carried out by conducting 1500 potential cycles between 0.1 and 1.2 V with 50 mV s-1 scan rate, H2/N 2 at 80 °C. The membrane electrode assembly (MEA) with Pt/MWCNTs showed superior performance stability with a power density degradation of only ∼30% compared to commercial Pt/C (70%) after potential cycles.

AB - Micelle-encapsulated multi-walled carbon nanotubes (MWCNTs) with sodium dodecyl sulfate (SDS) were used as catalyst support to deposit platinum nanoparticles. High resolution transmission electron microscopy (HRTEM) images reveal the crystalline nature of Pt nanoparticles with a diameter of ∼4 nm on the surface of MWCNTs. A single proton exchange membrane fuel cell (PEMFC) with total catalyst loading of 0.2 mg Pt cm-2 (anode 0.1 and cathode 0.1 mg Pt cm-2, respectively) has been evaluated at 80 °C with H2 and O2 gases using Nafion-212 electrolyte. Pt/MWCNTs synthesized by using modified SDS-MWCNTs with high temperature treatment (250 °C) showed a peak power density of 950 mW cm-2. Accelerated durability evaluation was carried out by conducting 1500 potential cycles between 0.1 and 1.2 V with 50 mV s-1 scan rate, H2/N 2 at 80 °C. The membrane electrode assembly (MEA) with Pt/MWCNTs showed superior performance stability with a power density degradation of only ∼30% compared to commercial Pt/C (70%) after potential cycles.

KW - Carbon nanotubes

KW - Micelle structure

KW - Platinum nanoparticles

KW - Proton exchange membrane fuel cell

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Synthesis of Pt nanocatalyst with micelle-encapsulated multi-walled carbon nanotubes as support for proton exchange membrane fuel cells

Abstract

Keywords

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