Physical vapor deposition process for engineering Pt based oxygen reduction reaction catalysts on NbOx templated carbon support

Chunchuan Xu; Jun Yang; Ershuai Liu; Qingying Jia; Gabriel M. Veith; Gokul Nair; Stephen DiPietro; Kai Sun; Jixin Chen; P. Pietrasz; Zijie Lu; Mark Jagner; Kerrie K. Gath; Sanjeev Mukerjee; James R. Waldecker

doi:10.1016/j.jpowsour.2020.227709

Physical vapor deposition process for engineering Pt based oxygen reduction reaction catalysts on NbO_x templated carbon support

Chunchuan Xu, Jun Yang, Ershuai Liu, Qingying Jia, Gabriel M. Veith, Gokul Nair, Stephen DiPietro, Kai Sun, Jixin Chen, P. Pietrasz, Zijie Lu, Mark Jagner, Kerrie K. Gath, Sanjeev Mukerjee, James R. Waldecker

Energy Storage & Conversion

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

24 Scopus citations

Abstract

Two physical vapor deposition (PVD) processes, magnetron sputtering (MS) and arc plasma deposition (APD), were investigated to prepare oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells (PEMFCs). The catalysts are composed of Pt or Pt alloy on a NbO_x decorated carbon support (NbO_x/C). The combination of these materials results in tunable structures and electronic properties and a commensurate increase in lifetime (>60% retention after 30,000 cycles) and initial MEA mass activities of over 300 Ag_Pt⁻¹. In situ x-ray absorption spectroscopy (XAS) shows that there exists direct interaction between Pt and the O in the non-stoichiometric NbO_x in Pt on NbO_x/C catalyst. The introduction of Co leads to shortened Pt–Pt bond distance as confirmed by XAS, and a beneficial Pt on NbO_x strain effect. The relationship between Pt and NbO_x loading is discussed based on rotating disk electrode (RDE) data.

Original language	English
Article number	227709
Journal	Journal of Power Sources
Volume	451
DOIs	https://doi.org/10.1016/j.jpowsour.2020.227709
State	Published - Mar 1 2020

Funding

This work was supported by Fuel Cell Technology Office under the Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy , through Contract No. DE-EE0007675 . The authors gratefully acknowledge the use of Beamline 7-BM (QAS) and 8-ID (ISS) of the National Synchrotron Light Source (NSLS) II at Brookhaven National Laboratory, under U.S. Thanks also extended to DOE project manager David Peterson. Appendix A This work was supported by Fuel Cell Technology Office under the Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy, through Contract No. DE-EE0007675. The authors gratefully acknowledge the use of Beamline 7-BM (QAS) and 8-ID (ISS) of the National Synchrotron Light Source (NSLS) II at Brookhaven National Laboratory, under U.S. Thanks also extended to DOE project manager David Peterson.

Funders	Funder number
U.S. Department of Energy	DE-EE0007675
Office of Energy Efficiency and Renewable Energy
Brookhaven National Laboratory
Fuel Cell Technologies Office

Keywords

Accelerated stress test (AST)
Arc plasma deposition (APD)
Membrane electrode assemble (MEA)
Non-stoichiometric niobium oxide (NbO)
Oxygen reduction reaction (ORR) catalyst
Physical vapor deposition (PVD)
X-ray absorption spectroscopy (XAS)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2020.227709

Cite this

Xu, C., Yang, J., Liu, E., Jia, Q., Veith, G. M., Nair, G., DiPietro, S., Sun, K., Chen, J., Pietrasz, P., Lu, Z., Jagner, M., Gath, K. K., Mukerjee, S., & Waldecker, J. R. (2020). Physical vapor deposition process for engineering Pt based oxygen reduction reaction catalysts on NbO_x templated carbon support. Journal of Power Sources, 451, Article 227709. https://doi.org/10.1016/j.jpowsour.2020.227709

@article{e8810446149c4fb1adc5b11162c27023,

title = "Physical vapor deposition process for engineering Pt based oxygen reduction reaction catalysts on NbOx templated carbon support",

abstract = "Two physical vapor deposition (PVD) processes, magnetron sputtering (MS) and arc plasma deposition (APD), were investigated to prepare oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells (PEMFCs). The catalysts are composed of Pt or Pt alloy on a NbOx decorated carbon support (NbOx/C). The combination of these materials results in tunable structures and electronic properties and a commensurate increase in lifetime (>60% retention after 30,000 cycles) and initial MEA mass activities of over 300 AgPt−1. In situ x-ray absorption spectroscopy (XAS) shows that there exists direct interaction between Pt and the O in the non-stoichiometric NbOx in Pt on NbOx/C catalyst. The introduction of Co leads to shortened Pt–Pt bond distance as confirmed by XAS, and a beneficial Pt on NbOx strain effect. The relationship between Pt and NbOx loading is discussed based on rotating disk electrode (RDE) data.",

keywords = "Accelerated stress test (AST), Arc plasma deposition (APD), Membrane electrode assemble (MEA), Non-stoichiometric niobium oxide (NbO), Oxygen reduction reaction (ORR) catalyst, Physical vapor deposition (PVD), X-ray absorption spectroscopy (XAS)",

author = "Chunchuan Xu and Jun Yang and Ershuai Liu and Qingying Jia and Veith, {Gabriel M.} and Gokul Nair and Stephen DiPietro and Kai Sun and Jixin Chen and P. Pietrasz and Zijie Lu and Mark Jagner and Gath, {Kerrie K.} and Sanjeev Mukerjee and Waldecker, {James R.}",

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year = "2020",

month = mar,

day = "1",

doi = "10.1016/j.jpowsour.2020.227709",

language = "English",

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Xu, C, Yang, J, Liu, E, Jia, Q, Veith, GM, Nair, G, DiPietro, S, Sun, K, Chen, J, Pietrasz, P, Lu, Z, Jagner, M, Gath, KK, Mukerjee, S & Waldecker, JR 2020, 'Physical vapor deposition process for engineering Pt based oxygen reduction reaction catalysts on NbO_x templated carbon support', Journal of Power Sources, vol. 451, 227709. https://doi.org/10.1016/j.jpowsour.2020.227709

TY - JOUR

T1 - Physical vapor deposition process for engineering Pt based oxygen reduction reaction catalysts on NbOx templated carbon support

AU - Xu, Chunchuan

AU - Yang, Jun

AU - Liu, Ershuai

AU - Jia, Qingying

AU - Veith, Gabriel M.

AU - Nair, Gokul

AU - DiPietro, Stephen

AU - Sun, Kai

AU - Chen, Jixin

AU - Pietrasz, P.

AU - Lu, Zijie

AU - Jagner, Mark

AU - Gath, Kerrie K.

AU - Mukerjee, Sanjeev

AU - Waldecker, James R.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Two physical vapor deposition (PVD) processes, magnetron sputtering (MS) and arc plasma deposition (APD), were investigated to prepare oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells (PEMFCs). The catalysts are composed of Pt or Pt alloy on a NbOx decorated carbon support (NbOx/C). The combination of these materials results in tunable structures and electronic properties and a commensurate increase in lifetime (>60% retention after 30,000 cycles) and initial MEA mass activities of over 300 AgPt−1. In situ x-ray absorption spectroscopy (XAS) shows that there exists direct interaction between Pt and the O in the non-stoichiometric NbOx in Pt on NbOx/C catalyst. The introduction of Co leads to shortened Pt–Pt bond distance as confirmed by XAS, and a beneficial Pt on NbOx strain effect. The relationship between Pt and NbOx loading is discussed based on rotating disk electrode (RDE) data.

AB - Two physical vapor deposition (PVD) processes, magnetron sputtering (MS) and arc plasma deposition (APD), were investigated to prepare oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells (PEMFCs). The catalysts are composed of Pt or Pt alloy on a NbOx decorated carbon support (NbOx/C). The combination of these materials results in tunable structures and electronic properties and a commensurate increase in lifetime (>60% retention after 30,000 cycles) and initial MEA mass activities of over 300 AgPt−1. In situ x-ray absorption spectroscopy (XAS) shows that there exists direct interaction between Pt and the O in the non-stoichiometric NbOx in Pt on NbOx/C catalyst. The introduction of Co leads to shortened Pt–Pt bond distance as confirmed by XAS, and a beneficial Pt on NbOx strain effect. The relationship between Pt and NbOx loading is discussed based on rotating disk electrode (RDE) data.

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KW - Arc plasma deposition (APD)

KW - Membrane electrode assemble (MEA)

KW - Non-stoichiometric niobium oxide (NbO)

KW - Oxygen reduction reaction (ORR) catalyst

KW - Physical vapor deposition (PVD)

KW - X-ray absorption spectroscopy (XAS)

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