Mass-transport-limited oxidation of formic acid on a PdMLPt(100) electrode in perchloric acid

Xiaoting Chen; Marc T.M. Koper

doi:10.1016/j.elecom.2017.08.002

Mass-transport-limited oxidation of formic acid on a Pd_MLPt(100) electrode in perchloric acid

Xiaoting Chen, Marc T.M. Koper^*

^*Corresponding author for this work

Leiden University

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

17 Citations (Scopus)

Abstract

In this communication, we study the electrocatalytic formic acid oxidation process on an epitaxially grown Pd monolayer on a Pt(100) single crystal in perchloric acid. The formic acid oxidation activity on this Pd_MLPt(100) electrode in perchloric acid is significantly enhanced compared to the same electrode in sulfuric acid and compared to unmodified Pt(100), with a low onset potential of around 0.14 V_RHE. The absence of hysteresis between the positive and negative scan during formic acid oxidation indicates the remarkable resistance to CO poisoning of the Pd monolayer surface. Most importantly, we report, for the first time, a mass-transport-limited formic acid oxidation rate on the Pd_MLPt(100) rotating electrode in perchlorate acid, setting a catalytic benchmark for future electrocatalysts for formic acid oxidation.

Original language	English
Pages (from-to)	155-158
Number of pages	4
Journal	Electrochemistry Communications
Volume	82
DOIs	https://doi.org/10.1016/j.elecom.2017.08.002
Publication status	Published - Sept 2017
Externally published	Yes

Keywords

Electrocatalysis
Formic acid oxidation
Mass-transport limitation
Palladium monolayer
Platinum single crystal

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10.1016/j.elecom.2017.08.002

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title = "Mass-transport-limited oxidation of formic acid on a PdMLPt(100) electrode in perchloric acid",

abstract = "In this communication, we study the electrocatalytic formic acid oxidation process on an epitaxially grown Pd monolayer on a Pt(100) single crystal in perchloric acid. The formic acid oxidation activity on this PdMLPt(100) electrode in perchloric acid is significantly enhanced compared to the same electrode in sulfuric acid and compared to unmodified Pt(100), with a low onset potential of around 0.14 VRHE. The absence of hysteresis between the positive and negative scan during formic acid oxidation indicates the remarkable resistance to CO poisoning of the Pd monolayer surface. Most importantly, we report, for the first time, a mass-transport-limited formic acid oxidation rate on the PdMLPt(100) rotating electrode in perchlorate acid, setting a catalytic benchmark for future electrocatalysts for formic acid oxidation.",

keywords = "Electrocatalysis, Formic acid oxidation, Mass-transport limitation, Palladium monolayer, Platinum single crystal",

author = "Xiaoting Chen and Koper, {Marc T.M.}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.elecom.2017.08.002",

language = "English",

volume = "82",

pages = "155--158",

journal = "Electrochemistry Communications",

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T1 - Mass-transport-limited oxidation of formic acid on a PdMLPt(100) electrode in perchloric acid

AU - Chen, Xiaoting

AU - Koper, Marc T.M.

PY - 2017/9

Y1 - 2017/9

N2 - In this communication, we study the electrocatalytic formic acid oxidation process on an epitaxially grown Pd monolayer on a Pt(100) single crystal in perchloric acid. The formic acid oxidation activity on this PdMLPt(100) electrode in perchloric acid is significantly enhanced compared to the same electrode in sulfuric acid and compared to unmodified Pt(100), with a low onset potential of around 0.14 VRHE. The absence of hysteresis between the positive and negative scan during formic acid oxidation indicates the remarkable resistance to CO poisoning of the Pd monolayer surface. Most importantly, we report, for the first time, a mass-transport-limited formic acid oxidation rate on the PdMLPt(100) rotating electrode in perchlorate acid, setting a catalytic benchmark for future electrocatalysts for formic acid oxidation.

AB - In this communication, we study the electrocatalytic formic acid oxidation process on an epitaxially grown Pd monolayer on a Pt(100) single crystal in perchloric acid. The formic acid oxidation activity on this PdMLPt(100) electrode in perchloric acid is significantly enhanced compared to the same electrode in sulfuric acid and compared to unmodified Pt(100), with a low onset potential of around 0.14 VRHE. The absence of hysteresis between the positive and negative scan during formic acid oxidation indicates the remarkable resistance to CO poisoning of the Pd monolayer surface. Most importantly, we report, for the first time, a mass-transport-limited formic acid oxidation rate on the PdMLPt(100) rotating electrode in perchlorate acid, setting a catalytic benchmark for future electrocatalysts for formic acid oxidation.

KW - Electrocatalysis

KW - Formic acid oxidation

KW - Mass-transport limitation

KW - Palladium monolayer

KW - Platinum single crystal

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U2 - 10.1016/j.elecom.2017.08.002

DO - 10.1016/j.elecom.2017.08.002

M3 - Article

AN - SCOPUS:85028012021

SN - 1388-2481

VL - 82

SP - 155

EP - 158

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

Mass-transport-limited oxidation of formic acid on a Pd_MLPt(100) electrode in perchloric acid

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Keywords

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