Trimetallic (Aurod-Pdshell-Ptcluster) Catalyst Used as Amperometric Hydrogen Peroxide Sensor

Shou-I Cheng; John Rick; Chun-Jern Pan; Hung-Lung Chou; Wei-Nien Su; Kuan-Jung Chen; Chung-Chiun Liu; Yaw-Wen Yang; Chia-Hsin Wang; Bing-Joe Hwang

doi:10.3390/bios4040461

Biosensors (Nov 2014)

Trimetallic (Aurod-Pdshell-Ptcluster) Catalyst Used as Amperometric Hydrogen Peroxide Sensor

Shou-I Cheng,
John Rick,
Chun-Jern Pan,
Hung-Lung Chou,
Wei-Nien Su,
Kuan-Jung Chen,
Chung-Chiun Liu,
Yaw-Wen Yang,
Chia-Hsin Wang,
Bing-Joe Hwang

Affiliations

Shou-I Cheng: Nanoelectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
John Rick: Nanoelectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
Chun-Jern Pan: Nanoelectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
Hung-Lung Chou: Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
Wei-Nien Su: Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
Kuan-Jung Chen: Nanoelectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
Chung-Chiun Liu: Department of Chemical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
Yaw-Wen Yang: National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
Chia-Hsin Wang: National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
Bing-Joe Hwang: Nanoelectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan

DOI: https://doi.org/10.3390/bios4040461
Journal volume & issue: Vol. 4, no. 4
pp. 461 – 471

Abstract

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Bimetallic nanostructured core-shell structures are commonly used as catalysts in a wide variety of reactions. We surmised that the addition of an additional metal would potentially allow catalytic tailoring with the possibility of an increase in activity. Here a tri-metallic catalytic structure, consisting of clustered catalytic Pt on the surface of a Pd shell supported on a rod shaped Au core was fabricated. The significance of the additional metallic component is shown by comparative electrochemically active surface area (ECSA) analysis results for the trimetallic Aurod-Pdshell-Ptcluster, bimetallic Aurod-Ptcluster and monometallic JM-Pt (used as a reference), which have respective ECSA values (cm2/mgPt) of 1883.0, 1371.7 and 879. The potential utility of the trimetallic catalysts was shown in a hydrogen peroxide sensing protocol, which showed the catalyst to have a sensitivity of 604 ìA/mMcm2 within a linear range of 0.0013–6.191 mM.

Published in Biosensors

ISSN: 2079-6374 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology: Biotechnology
Website: http://www.mdpi.com/journal/biosensors

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