Porous Pd films as effective ethanol oxidation electrocatalysts in alkaline medium

Xiaoli Xing; Serhiy Cherevko; Chan Hwa Chung

doi:10.1016/j.matchemphys.2010.12.027

Porous Pd films as effective ethanol oxidation electrocatalysts in alkaline medium

Xiaoli Xing
, Serhiy Cherevko
, Chan Hwa Chung

Department of Chemical Engineering

Sungkyunkwan University

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

36 Scopus citations

Abstract

Porous Pd films are successfully electrodeposited within hydrogen bubble dynamic templates for the first time, characterized by SEM, EDS, XRD, cyclic voltammetry and chronoamperometry. The effects of the NH₄Cl concentration and deposition time on the morphology are studied. The real surface area and pore size can be controlled easily by modulating the electrolyte composition and deposition time. The as-prepared Pd films have a high geometric efficiency, ensuring a large number of active sites and rapid reaction rates. The porous Pd films with different pore size show different electrocatalytic stability. Amperometric current of ethanol oxidation decays fast on the films with small pores. Porous Pd films with a larger pore size show high electrochemical activity and stability for ethanol electro-oxidation in an alkaline medium.

Original language	English
Pages (from-to)	36-40
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	126
Issue number	1-2
DOIs	https://doi.org/10.1016/j.matchemphys.2010.12.027
State	Published - 15 Mar 2011

Keywords

Electrochemical properties
Microporous materials
Pd

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10.1016/j.matchemphys.2010.12.027

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title = "Porous Pd films as effective ethanol oxidation electrocatalysts in alkaline medium",

abstract = "Porous Pd films are successfully electrodeposited within hydrogen bubble dynamic templates for the first time, characterized by SEM, EDS, XRD, cyclic voltammetry and chronoamperometry. The effects of the NH4Cl concentration and deposition time on the morphology are studied. The real surface area and pore size can be controlled easily by modulating the electrolyte composition and deposition time. The as-prepared Pd films have a high geometric efficiency, ensuring a large number of active sites and rapid reaction rates. The porous Pd films with different pore size show different electrocatalytic stability. Amperometric current of ethanol oxidation decays fast on the films with small pores. Porous Pd films with a larger pore size show high electrochemical activity and stability for ethanol electro-oxidation in an alkaline medium.",

keywords = "Electrochemical properties, Microporous materials, Pd",

author = "Xiaoli Xing and Serhiy Cherevko and Chung, \{Chan Hwa\}",

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doi = "10.1016/j.matchemphys.2010.12.027",

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TY - JOUR

T1 - Porous Pd films as effective ethanol oxidation electrocatalysts in alkaline medium

AU - Xing, Xiaoli

AU - Cherevko, Serhiy

AU - Chung, Chan Hwa

PY - 2011/3/15

Y1 - 2011/3/15

N2 - Porous Pd films are successfully electrodeposited within hydrogen bubble dynamic templates for the first time, characterized by SEM, EDS, XRD, cyclic voltammetry and chronoamperometry. The effects of the NH4Cl concentration and deposition time on the morphology are studied. The real surface area and pore size can be controlled easily by modulating the electrolyte composition and deposition time. The as-prepared Pd films have a high geometric efficiency, ensuring a large number of active sites and rapid reaction rates. The porous Pd films with different pore size show different electrocatalytic stability. Amperometric current of ethanol oxidation decays fast on the films with small pores. Porous Pd films with a larger pore size show high electrochemical activity and stability for ethanol electro-oxidation in an alkaline medium.

AB - Porous Pd films are successfully electrodeposited within hydrogen bubble dynamic templates for the first time, characterized by SEM, EDS, XRD, cyclic voltammetry and chronoamperometry. The effects of the NH4Cl concentration and deposition time on the morphology are studied. The real surface area and pore size can be controlled easily by modulating the electrolyte composition and deposition time. The as-prepared Pd films have a high geometric efficiency, ensuring a large number of active sites and rapid reaction rates. The porous Pd films with different pore size show different electrocatalytic stability. Amperometric current of ethanol oxidation decays fast on the films with small pores. Porous Pd films with a larger pore size show high electrochemical activity and stability for ethanol electro-oxidation in an alkaline medium.

KW - Electrochemical properties

KW - Microporous materials

KW - Pd

UR - https://www.scopus.com/pages/publications/78751625305

U2 - 10.1016/j.matchemphys.2010.12.027

DO - 10.1016/j.matchemphys.2010.12.027

M3 - Article

AN - SCOPUS:78751625305

SN - 0254-0584

VL - 126

SP - 36

EP - 40

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1-2

ER -

Porous Pd films as effective ethanol oxidation electrocatalysts in alkaline medium

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Keywords

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