The Role of Nitrogen Doping on Durability in the Pt-Ru/HOPG System

S. Pylypenko; A. Queen; K. C. Neyerlin; T. Olson; A. Dameron; K. O'Neill; D. Ginley; B. Gorman; S. Kocha; H. N. Dinh; T. Gennett; R. O'Hayre

doi:10.1149/1.3484533

The Role of Nitrogen Doping on Durability in the Pt-Ru/HOPG System

S. Pylypenko, A. Queen, K. C. Neyerlin, T. Olson, A. Dameron, K. O'Neill, D. Ginley, B. Gorman, S. Kocha, H. N. Dinh, T. Gennett, R. O'Hayre

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Abstract

This study investigates the role of the nitrogen doping on the durability of Pt-Ru metal nanophase catalysts supported on highly-oriented pyrolytic graphite (HOPG) substrates. The effect of the ion dose during N² low ion energy implantation on the degree of the HOPG modification and levels of nitrogen doping are evaluated using X-ray photoelectron and Raman spectroscopy. Pt-Ru catalyst metal was deposited onto unmodified and N-implanted HOPG substrates using microwave and magnetron sputtering deposition routes, resulting in deposition either with or without preferential nucleation in the defect-sites. The role of the nitrogen on improved bonding between catalyst and support is evident from the microscopic evaluation of substrates after potential cycling.

Original language	American English
Pages (from-to)	351-357
Number of pages	7
Journal	ECS Transactions
Volume	33
Issue number	1 PART 1
DOIs	https://doi.org/10.1149/1.3484533 https://doi.org/10.1149/1.3484533
State	Published - 2010
Event	10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting - Las Vegas, NV, United States Duration: 10 Oct 2010 → 15 Oct 2010

NREL Publication Number

NREL/JA-560-48741

Keywords

nitrogen-doped carbon
PEM fuel cells
substrate characterization

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title = "The Role of Nitrogen Doping on Durability in the Pt-Ru/HOPG System",

abstract = "This study investigates the role of the nitrogen doping on the durability of Pt-Ru metal nanophase catalysts supported on highly-oriented pyrolytic graphite (HOPG) substrates. The effect of the ion dose during N2 low ion energy implantation on the degree of the HOPG modification and levels of nitrogen doping are evaluated using X-ray photoelectron and Raman spectroscopy. Pt-Ru catalyst metal was deposited onto unmodified and N-implanted HOPG substrates using microwave and magnetron sputtering deposition routes, resulting in deposition either with or without preferential nucleation in the defect-sites. The role of the nitrogen on improved bonding between catalyst and support is evident from the microscopic evaluation of substrates after potential cycling.",

keywords = "nitrogen-doped carbon, PEM fuel cells, substrate characterization",

author = "S. Pylypenko and A. Queen and Neyerlin, {K. C.} and T. Olson and A. Dameron and K. O'Neill and D. Ginley and B. Gorman and S. Kocha and Dinh, {H. N.} and T. Gennett and R. O'Hayre",

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doi = "10.1149/1.3484533",

language = "American English",

volume = "33",

pages = "351--357",

journal = "ECS Transactions",

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note = "10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting ; Conference date: 10-10-2010 Through 15-10-2010",

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T1 - The Role of Nitrogen Doping on Durability in the Pt-Ru/HOPG System

AU - Pylypenko, S.

AU - Queen, A.

AU - Neyerlin, K. C.

AU - Olson, T.

AU - Dameron, A.

AU - O'Neill, K.

AU - Ginley, D.

AU - Gorman, B.

AU - Kocha, S.

AU - Dinh, H. N.

AU - Gennett, T.

AU - O'Hayre, R.

PY - 2010

Y1 - 2010

N2 - This study investigates the role of the nitrogen doping on the durability of Pt-Ru metal nanophase catalysts supported on highly-oriented pyrolytic graphite (HOPG) substrates. The effect of the ion dose during N2 low ion energy implantation on the degree of the HOPG modification and levels of nitrogen doping are evaluated using X-ray photoelectron and Raman spectroscopy. Pt-Ru catalyst metal was deposited onto unmodified and N-implanted HOPG substrates using microwave and magnetron sputtering deposition routes, resulting in deposition either with or without preferential nucleation in the defect-sites. The role of the nitrogen on improved bonding between catalyst and support is evident from the microscopic evaluation of substrates after potential cycling.

AB - This study investigates the role of the nitrogen doping on the durability of Pt-Ru metal nanophase catalysts supported on highly-oriented pyrolytic graphite (HOPG) substrates. The effect of the ion dose during N2 low ion energy implantation on the degree of the HOPG modification and levels of nitrogen doping are evaluated using X-ray photoelectron and Raman spectroscopy. Pt-Ru catalyst metal was deposited onto unmodified and N-implanted HOPG substrates using microwave and magnetron sputtering deposition routes, resulting in deposition either with or without preferential nucleation in the defect-sites. The role of the nitrogen on improved bonding between catalyst and support is evident from the microscopic evaluation of substrates after potential cycling.

KW - nitrogen-doped carbon

KW - PEM fuel cells

KW - substrate characterization

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U2 - 10.1149/1.3484533

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JO - ECS Transactions

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IS - 1 PART 1

T2 - 10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting

Y2 - 10 October 2010 through 15 October 2010

ER -

The Role of Nitrogen Doping on Durability in the Pt-Ru/HOPG System

Abstract

NREL Publication Number

Keywords

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