Tuning the Electrocatalytic Performance of Ionic Liquid Modified Pt Catalysts for the Oxygen Reduction Reaction via Cationic Chain Engineering

ACS Catalysis
Gui-Rong ZhangBastian J M Etzold

Abstract

Modifying Pt catalysts using hydrophobic ionic liquids (ILs) has been demonstrated to be a facile approach for boosting the performance of Pt catalysts for the oxygen reduction reaction (ORR). This work aims to deepen the understanding and initiate a rational molecular tuning of ILs for improved activity and stability. To this end, Pt/C catalysts were modified using a variety of 1-methyl-3-alkylimidazolium bis(trifluoromethanesulfonyl)imide ([C n C1im][NTf2], n = 2-10) ILs with varying alkyl chain lengths in imidazolium cations, and the electrocatalytic properties (e.g., electrochemically active surface area, catalytic activity, and stability) of the resultant catalysts were systematically investigated. We found that ILs with long cationic chains (C6, C10) efficiently suppressed the formation of nonreactive oxygenated species on Pt; however, at the same time they blocked active Pt sites and led to a lower electrochemically active surface area. It is also disclosed that the catalytic activity strongly correlates with the alkyl chain length of cations, and a distinct dependence of intrinsic activity on the alkyl chain length was identified, with the maximum activity obtained on Pt/C-[C4C1im][NTf2]. The optimum arises from the c...Continue Reading

References

Jan 16, 2007·Science·Vojislav R StamenkovicNenad M Marković
Mar 29, 2007·The Journal of Physical Chemistry. B·Wei JiangGregory A Voth
May 2, 2007·The Journal of Physical Chemistry. B·Alexei A Kornyshev
Jan 19, 2008·The Journal of Physical Chemistry. B·Mara G FreireJoão A P Coutinho
Oct 16, 2008·The Journal of Physical Chemistry. a·B L Bhargava, Michael L Klein
Jun 23, 2009·The Journal of Physical Chemistry. B·B L Bhargava, Michael L Klein
May 18, 2010·Journal of the American Chemical Society·Yijin Kang, Christopher B Murray
May 22, 2010·Nature Chemistry·Peter StrasserAnders Nilsson
Aug 19, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Yu-Zhuan SuBing-Wei Mao
Oct 19, 2010·Nature Materials·J SnyderJ Erlebacher
Jan 7, 2011·Physical Chemistry Chemical Physics : PCCP·Yuan-Yuan FengBo-Qing Xu
Mar 31, 2011·Chemical Communications : Chem Comm·B L BhargavaMichael L Klein
Oct 22, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Patrick UrchagaGregory Jerkiewicz
Apr 21, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Yansen LauwAndrew R J Nelson
Jun 29, 2012·Journal of the American Chemical Society·Jianbo WuHong Yang
Feb 20, 2013·Angewandte Chemie·Shaojun GuoShouheng Sun
May 30, 2013·Proceedings of the National Academy of Sciences of the United States of America·Matthew A GebbieJacob N Israelachvili
Jun 19, 2013·Angewandte Chemie·Shaojun GuoShouheng Sun
Jul 24, 2013·Angewandte Chemie·Wei LiuAlexander Eychmüller
Mar 8, 2014·Beilstein Journal of Nanotechnology·Josef C MeierKarl J J Mayrhofer
Jan 1, 2013·Faraday Discussions·Alexander M SmithSusan Perkin
Dec 6, 2014·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Ahmet UysalPaul Fenter
Jan 27, 2015·ACS Applied Materials & Interfaces·Gui-Rong ZhangBastian J M Etzold
Feb 13, 2015·Chemical Society Reviews·Yan JiaoShi Zhang Qiao
May 6, 2015·Chemical Reviews·Liming DaiJong-Beom Baek
Jan 10, 2017·Advanced Materials·Cheng Tang, Qiang Zhang
Jan 23, 2018·Chemical Society Reviews·Peter StrasserTim Moeller

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Citations

Jul 12, 2019·Beilstein Journal of Nanotechnology·Stéphane LouisiaPhilippe Serp
Oct 12, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Daniel J S SandbeckSerhiy Cherevko
Dec 21, 2019·Chemical Science·Batyr GarlyyevFederico Calle-Vallejo
Feb 7, 2020·ChemElectroChem·Liu-Liu ShenBastian J M Etzold
Mar 19, 2021·The Journal of Physical Chemistry. a·Deepak K PandeyDheeraj K Singh
Jul 30, 2021·Chemosphere·Shanmugasundaram KamalakannanMajdi Hochlaf
May 13, 2020·ACS Applied Materials & Interfaces·Daniel SandbeckSerhiy Cherevko
Mar 20, 2020·ACS Applied Materials & Interfaces·Ivan KhalakhanHeinz Amenitsch

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Methods Mentioned

BETA
NMR
atomic emission spectrometry
neutron reflectometry
AFM

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