Investigation of the Oxygen Reduction Activity on Silver - A Rotating Disc Electrode Study

G. K. H. Wiberg; K. J. J. Mayrhofer; M. Arenz

doi:10.1002/fuce.200900136

Investigation of the Oxygen Reduction Activity on Silver - A Rotating Disc Electrode Study

G. K. H. Wiberg, K. J. J. Mayrhofer, M. Arenz

Kemisk Institut

87 Citationer (Scopus)

Abstract

In this study the oxygen reduction reaction (ORR) is investigated on a nanoparticulate silver electrocatalyst in alkaline solution. The catalytic activity of the catalyst is determined both in terms of mass activity as well as specific activity and turn over frequency, respectively. It is demonstrated that the established mass activities are independent of the applied catalyst loading, an essential requirement for a reasonable analysis. The determination of the electrochemically active surface area (ECA) or the number of electrochemically accessible sites (NECAS), respectively, is performed by the underpotential deposition of lead. The obtained value of the activity is compared to activities of polycrystalline silver and platinum measured in the same electrolyte, as well as to literature data.

Originalsprog	Engelsk
Tidsskrift	Fuel Cells
Vol/bind	10
Udgave nummer	4
Sider (fra-til)	575-581
ISSN	1615-6846
DOI	https://doi.org/10.1002/fuce.200900136
Status	Udgivet - aug. 2010

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10.1002/fuce.200900136

Citationsformater

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title = "Investigation of the Oxygen Reduction Activity on Silver - A Rotating Disc Electrode Study",

abstract = "In this study the oxygen reduction reaction (ORR) is investigated on a nanoparticulate silver electrocatalyst in alkaline solution. The catalytic activity of the catalyst is determined both in terms of mass activity as well as specific activity and turn over frequency, respectively. It is demonstrated that the established mass activities are independent of the applied catalyst loading, an essential requirement for a reasonable analysis. The determination of the electrochemically active surface area (ECA) or the number of electrochemically accessible sites (NECAS), respectively, is performed by the underpotential deposition of lead. The obtained value of the activity is compared to activities of polycrystalline silver and platinum measured in the same electrolyte, as well as to literature data.",

author = "Wiberg, {G. K. H.} and Mayrhofer, {K. J. J.} and M. Arenz",

year = "2010",

month = aug,

doi = "10.1002/fuce.200900136",

language = "English",

volume = "10",

pages = "575--581",

journal = "Fuel Cells",

issn = "1615-6846",

publisher = "Wiley - V C H Verlag GmbH & Co. KGaA",

number = "4",

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TY - JOUR

T1 - Investigation of the Oxygen Reduction Activity on Silver - A Rotating Disc Electrode Study

AU - Wiberg, G. K. H.

AU - Mayrhofer, K. J. J.

AU - Arenz, M.

PY - 2010/8

Y1 - 2010/8

N2 - In this study the oxygen reduction reaction (ORR) is investigated on a nanoparticulate silver electrocatalyst in alkaline solution. The catalytic activity of the catalyst is determined both in terms of mass activity as well as specific activity and turn over frequency, respectively. It is demonstrated that the established mass activities are independent of the applied catalyst loading, an essential requirement for a reasonable analysis. The determination of the electrochemically active surface area (ECA) or the number of electrochemically accessible sites (NECAS), respectively, is performed by the underpotential deposition of lead. The obtained value of the activity is compared to activities of polycrystalline silver and platinum measured in the same electrolyte, as well as to literature data.

AB - In this study the oxygen reduction reaction (ORR) is investigated on a nanoparticulate silver electrocatalyst in alkaline solution. The catalytic activity of the catalyst is determined both in terms of mass activity as well as specific activity and turn over frequency, respectively. It is demonstrated that the established mass activities are independent of the applied catalyst loading, an essential requirement for a reasonable analysis. The determination of the electrochemically active surface area (ECA) or the number of electrochemically accessible sites (NECAS), respectively, is performed by the underpotential deposition of lead. The obtained value of the activity is compared to activities of polycrystalline silver and platinum measured in the same electrolyte, as well as to literature data.

U2 - 10.1002/fuce.200900136

DO - 10.1002/fuce.200900136

M3 - Journal article

SN - 1615-6846

VL - 10

SP - 575

EP - 581

JO - Fuel Cells

JF - Fuel Cells

IS - 4

ER -

Investigation of the Oxygen Reduction Activity on Silver - A Rotating Disc Electrode Study

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