Ionic Liquid Modification of High-Pt-Loading Pt/C Electrocatalysts for Proton Exchange Membrane Fuel Cell Application

Fengshun Cheng; Yuchen Guo; Xinhong Liang; Fanqiushi Yue; Yichang Yan; Yang Li; Yuanzhi Zhu; Yanping He; Shangfeng Du

doi:10.3390/catal14060344

Ionic Liquid Modification of High-Pt-Loading Pt/C Electrocatalysts for Proton Exchange Membrane Fuel Cell Application

Fengshun Cheng, Yuchen Guo, Xinhong Liang, Fanqiushi Yue, Yichang Yan, Yang Li, Yuanzhi Zhu, Yanping He^*, Shangfeng Du^*

^*Corresponding author for this work

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

45 Downloads (Pure)

Abstract

Ionic liquid modification for carbon-supported platinum (Pt/C) electrocatalysts to enhance their oxygen reduction reaction (ORR) activity has been well recognized. However, the research has only been reported on the low-Pt-loading Pt/C electrocatalysts, e.g., 20 wt%, while in practical applications, usually high-Pt-loading Pt/C electrocatalysts of 45–60 wt% are used. In this work, ionic liquid modification is systematically investigated for a Pt/C electrocatalyst with 60 wt% Pt loading for its ORR activity in the cathode in proton exchange membrane fuel cells (PEMFCs). Various adsorption amounts are studied on the catalyst surface. Different modification behavior is found. Mechanism exploration shows that the adsorption of ionic liquid mainly happens on the Pt electrocatalyst surface and in the micropores of the carbon support. The highest fuel cell power performance is achieved at an ionic liquid loading of 7 wt%, which is much higher than the 3 wt% reported for the low-Pt-loading Pt/C.

Original language	English
Article number	344
Number of pages	11
Journal	Catalysts
Volume	14
Issue number	6
DOIs	https://doi.org/10.3390/catal14060344
Publication status	Published - 25 May 2024

Keywords

electrode
oxygen reduction reaction
ionic liquid
micropores
Pt/C
proton exchange membrane fuel cells (PEMFCs)

Access to Document

10.3390/catal14060344Licence: Creative Commons: Attribution (CC BY)

ChengF2024IonicFinal published version, 5.72 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

@article{b96580f6c9874302a205641a2d437e2c,

title = "Ionic Liquid Modification of High-Pt-Loading Pt/C Electrocatalysts for Proton Exchange Membrane Fuel Cell Application",

abstract = "Ionic liquid modification for carbon-supported platinum (Pt/C) electrocatalysts to enhance their oxygen reduction reaction (ORR) activity has been well recognized. However, the research has only been reported on the low-Pt-loading Pt/C electrocatalysts, e.g., 20 wt%, while in practical applications, usually high-Pt-loading Pt/C electrocatalysts of 45–60 wt% are used. In this work, ionic liquid modification is systematically investigated for a Pt/C electrocatalyst with 60 wt% Pt loading for its ORR activity in the cathode in proton exchange membrane fuel cells (PEMFCs). Various adsorption amounts are studied on the catalyst surface. Different modification behavior is found. Mechanism exploration shows that the adsorption of ionic liquid mainly happens on the Pt electrocatalyst surface and in the micropores of the carbon support. The highest fuel cell power performance is achieved at an ionic liquid loading of 7 wt%, which is much higher than the 3 wt% reported for the low-Pt-loading Pt/C.",

keywords = "electrode, oxygen reduction reaction, ionic liquid, micropores, Pt/C, proton exchange membrane fuel cells (PEMFCs)",

author = "Fengshun Cheng and Yuchen Guo and Xinhong Liang and Fanqiushi Yue and Yichang Yan and Yang Li and Yuanzhi Zhu and Yanping He and Shangfeng Du",

year = "2024",

month = may,

day = "25",

doi = "10.3390/catal14060344",

language = "English",

volume = "14",

journal = "Catalysts",

issn = "2073-4344",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "6",

}

TY - JOUR

T1 - Ionic Liquid Modification of High-Pt-Loading Pt/C Electrocatalysts for Proton Exchange Membrane Fuel Cell Application

AU - Cheng, Fengshun

AU - Guo, Yuchen

AU - Liang, Xinhong

AU - Yue, Fanqiushi

AU - Yan, Yichang

AU - Li, Yang

AU - Zhu, Yuanzhi

AU - He, Yanping

AU - Du, Shangfeng

PY - 2024/5/25

Y1 - 2024/5/25

N2 - Ionic liquid modification for carbon-supported platinum (Pt/C) electrocatalysts to enhance their oxygen reduction reaction (ORR) activity has been well recognized. However, the research has only been reported on the low-Pt-loading Pt/C electrocatalysts, e.g., 20 wt%, while in practical applications, usually high-Pt-loading Pt/C electrocatalysts of 45–60 wt% are used. In this work, ionic liquid modification is systematically investigated for a Pt/C electrocatalyst with 60 wt% Pt loading for its ORR activity in the cathode in proton exchange membrane fuel cells (PEMFCs). Various adsorption amounts are studied on the catalyst surface. Different modification behavior is found. Mechanism exploration shows that the adsorption of ionic liquid mainly happens on the Pt electrocatalyst surface and in the micropores of the carbon support. The highest fuel cell power performance is achieved at an ionic liquid loading of 7 wt%, which is much higher than the 3 wt% reported for the low-Pt-loading Pt/C.

AB - Ionic liquid modification for carbon-supported platinum (Pt/C) electrocatalysts to enhance their oxygen reduction reaction (ORR) activity has been well recognized. However, the research has only been reported on the low-Pt-loading Pt/C electrocatalysts, e.g., 20 wt%, while in practical applications, usually high-Pt-loading Pt/C electrocatalysts of 45–60 wt% are used. In this work, ionic liquid modification is systematically investigated for a Pt/C electrocatalyst with 60 wt% Pt loading for its ORR activity in the cathode in proton exchange membrane fuel cells (PEMFCs). Various adsorption amounts are studied on the catalyst surface. Different modification behavior is found. Mechanism exploration shows that the adsorption of ionic liquid mainly happens on the Pt electrocatalyst surface and in the micropores of the carbon support. The highest fuel cell power performance is achieved at an ionic liquid loading of 7 wt%, which is much higher than the 3 wt% reported for the low-Pt-loading Pt/C.

KW - electrode

KW - oxygen reduction reaction

KW - ionic liquid

KW - micropores

KW - Pt/C

KW - proton exchange membrane fuel cells (PEMFCs)

U2 - 10.3390/catal14060344

DO - 10.3390/catal14060344

M3 - Article

SN - 2073-4344

VL - 14

JO - Catalysts

JF - Catalysts

IS - 6

M1 - 344

ER -

Ionic Liquid Modification of High-Pt-Loading Pt/C Electrocatalysts for Proton Exchange Membrane Fuel Cell Application

Abstract

Keywords

Access to Document

Fingerprint

Cite this