From rotating disk electrode to single cell: Exploration of PtNi/C octahedral nanocrystal as practical proton exchange membrane fuel cell cathode catalyst

Jue Wang, Bing Li*, Xin Gao, Daijun Yang, Hong Lv, Qiangfeng Xiao, Søren Knudsen Kær, Cunman Zhang

*Corresponding author

Research output: Contribution to journalJournal articleResearchpeer-review

2 Citations (Scopus)

Abstract

PtNi/C octahedral nanocrystal catalyst is prepared through surfactant-assisted solvothermal approach using cetyltrimethylammonium bromide as structure directing agent, and its performance on rotating disk electrode and membrane electrode assembly are investigated through experiment and simulation. Its mass activity and specific activity at 0.9 V vs. RHE are about 6.1 and 6.6 times high of commercial Pt/C, respectively. The membrane electrode assembly that is fabricated using PtNi/C octahedral catalyst in cathode exhibits enhanced power generation performance and durability. Its cell voltage at 1000 mA cm−2 is increased by 34 mV compared with the control, and its maximum power densities are raised by 160.2 mW cm−2 and 0.27 kW gPt−1. After 100 h galvanostatic durability test, the attenuation rates of its cell voltage at 1000 mA cm−2 and maximum power density are 6.9% and 14.3% (10.9% and 18.4% for the control), respectively. The simulation results also reveal that PtNi/C octahedral catalyst not only has high half cell performance, but also shows actual application potential in single cell, which demonstrates the feasibility that the excellent performance of PtNi/C octahedral catalyst at rotating disk electrode level can be realized in single cells through optimization of membrane electrode assembly fabrication and cell operation conditions.
Original languageEnglish
JournalJournal of Power Sources
Volume406
Pages (from-to)118-127
Number of pages10
ISSN0378-7753
DOIs
Publication statusPublished - Dec 2018

Fingerprint

cell cathodes
rotating disks
Rotating disks
Proton exchange membrane fuel cells (PEMFC)
Nanocrystals
fuel cells
nanocrystals
Cathodes
membranes
catalysts
Electrodes
Catalysts
electrodes
protons
cells
Membranes
assembly
durability
Durability
radiant flux density

Keywords

  • CTAB
  • Membrane electrode assembly
  • Octahedral nanocrystals
  • Oxygen reduction reaction
  • PtNi

Cite this

@article{bcbb1d4a32274eddbcf04c2d2ea486bc,
title = "From rotating disk electrode to single cell: Exploration of PtNi/C octahedral nanocrystal as practical proton exchange membrane fuel cell cathode catalyst",
abstract = "PtNi/C octahedral nanocrystal catalyst is prepared through surfactant-assisted solvothermal approach using cetyltrimethylammonium bromide as structure directing agent, and its performance on rotating disk electrode and membrane electrode assembly are investigated through experiment and simulation. Its mass activity and specific activity at 0.9 V vs. RHE are about 6.1 and 6.6 times high of commercial Pt/C, respectively. The membrane electrode assembly that is fabricated using PtNi/C octahedral catalyst in cathode exhibits enhanced power generation performance and durability. Its cell voltage at 1000 mA cm−2 is increased by 34 mV compared with the control, and its maximum power densities are raised by 160.2 mW cm−2 and 0.27 kW gPt−1. After 100 h galvanostatic durability test, the attenuation rates of its cell voltage at 1000 mA cm−2 and maximum power density are 6.9{\%} and 14.3{\%} (10.9{\%} and 18.4{\%} for the control), respectively. The simulation results also reveal that PtNi/C octahedral catalyst not only has high half cell performance, but also shows actual application potential in single cell, which demonstrates the feasibility that the excellent performance of PtNi/C octahedral catalyst at rotating disk electrode level can be realized in single cells through optimization of membrane electrode assembly fabrication and cell operation conditions.",
keywords = "CTAB, Membrane electrode assembly, Octahedral nanocrystals, Oxygen reduction reaction, PtNi",
author = "Jue Wang and Bing Li and Xin Gao and Daijun Yang and Hong Lv and Qiangfeng Xiao and K{\ae}r, {S{\o}ren Knudsen} and Cunman Zhang",
year = "2018",
month = "12",
doi = "10.1016/j.jpowsour.2018.10.010",
language = "English",
volume = "406",
pages = "118--127",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

From rotating disk electrode to single cell : Exploration of PtNi/C octahedral nanocrystal as practical proton exchange membrane fuel cell cathode catalyst. / Wang, Jue; Li, Bing; Gao, Xin; Yang, Daijun; Lv, Hong; Xiao, Qiangfeng; Kær, Søren Knudsen; Zhang, Cunman.

In: Journal of Power Sources, Vol. 406, 12.2018, p. 118-127.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - From rotating disk electrode to single cell

T2 - Exploration of PtNi/C octahedral nanocrystal as practical proton exchange membrane fuel cell cathode catalyst

AU - Wang, Jue

AU - Li, Bing

AU - Gao, Xin

AU - Yang, Daijun

AU - Lv, Hong

AU - Xiao, Qiangfeng

AU - Kær, Søren Knudsen

AU - Zhang, Cunman

PY - 2018/12

Y1 - 2018/12

N2 - PtNi/C octahedral nanocrystal catalyst is prepared through surfactant-assisted solvothermal approach using cetyltrimethylammonium bromide as structure directing agent, and its performance on rotating disk electrode and membrane electrode assembly are investigated through experiment and simulation. Its mass activity and specific activity at 0.9 V vs. RHE are about 6.1 and 6.6 times high of commercial Pt/C, respectively. The membrane electrode assembly that is fabricated using PtNi/C octahedral catalyst in cathode exhibits enhanced power generation performance and durability. Its cell voltage at 1000 mA cm−2 is increased by 34 mV compared with the control, and its maximum power densities are raised by 160.2 mW cm−2 and 0.27 kW gPt−1. After 100 h galvanostatic durability test, the attenuation rates of its cell voltage at 1000 mA cm−2 and maximum power density are 6.9% and 14.3% (10.9% and 18.4% for the control), respectively. The simulation results also reveal that PtNi/C octahedral catalyst not only has high half cell performance, but also shows actual application potential in single cell, which demonstrates the feasibility that the excellent performance of PtNi/C octahedral catalyst at rotating disk electrode level can be realized in single cells through optimization of membrane electrode assembly fabrication and cell operation conditions.

AB - PtNi/C octahedral nanocrystal catalyst is prepared through surfactant-assisted solvothermal approach using cetyltrimethylammonium bromide as structure directing agent, and its performance on rotating disk electrode and membrane electrode assembly are investigated through experiment and simulation. Its mass activity and specific activity at 0.9 V vs. RHE are about 6.1 and 6.6 times high of commercial Pt/C, respectively. The membrane electrode assembly that is fabricated using PtNi/C octahedral catalyst in cathode exhibits enhanced power generation performance and durability. Its cell voltage at 1000 mA cm−2 is increased by 34 mV compared with the control, and its maximum power densities are raised by 160.2 mW cm−2 and 0.27 kW gPt−1. After 100 h galvanostatic durability test, the attenuation rates of its cell voltage at 1000 mA cm−2 and maximum power density are 6.9% and 14.3% (10.9% and 18.4% for the control), respectively. The simulation results also reveal that PtNi/C octahedral catalyst not only has high half cell performance, but also shows actual application potential in single cell, which demonstrates the feasibility that the excellent performance of PtNi/C octahedral catalyst at rotating disk electrode level can be realized in single cells through optimization of membrane electrode assembly fabrication and cell operation conditions.

KW - CTAB

KW - Membrane electrode assembly

KW - Octahedral nanocrystals

KW - Oxygen reduction reaction

KW - PtNi

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U2 - 10.1016/j.jpowsour.2018.10.010

DO - 10.1016/j.jpowsour.2018.10.010

M3 - Journal article

AN - SCOPUS:85055050315

VL - 406

SP - 118

EP - 127

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -