Bimetallic Pt-Ru nanoparticle catalyst for hydrogen peroxide detection

Metini Janyasupab; Yuan Zhang; Po Yuan Lin; Brandon Bartling; Jiaqiang Xu; Chung Chiun Liu

doi:10.1155/2011/506862

Bimetallic Pt-Ru nanoparticle catalyst for hydrogen peroxide detection

Metini Janyasupab, Yuan Zhang, Po Yuan Lin, Brandon Bartling, Jiaqiang Xu, Chung Chiun Liu

Graduate Institute of Materials Science and Engineering

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

7 Scopus citations

Abstract

A bimetallic Pt-Ru nanoparticle catalyst was prepared and characterized for the enhancement of hydrogen peroxide (H ₂O ₂) detection in biosensing applications. The particles were synthesized via sodium borohydride reduction, with low heat treatment, and characterized by TEM and HRTEM. The chemical composition analyses were performed by EDX. The bimetallic particle diameters ranged from 2 to 12nm, with an average of 4.5nm. The Pt-Ru catalyst exhibited an improved performance at low overpotential (+0.2V versus Ag/AgCl reference electrode) in H ₂O ₂ detection, suggesting a sensitivity value of 78.95μ·mM ^-1 (or 402·1 μA·mM ^-1cm ^-2) which was 30 higher than that for the single Pt catalyst. The major contribution of this enhancement comes from the stronger oxygen adsorption on Ru metal. The Pt-Ru catalyst also showed a more stable signal at the high overpotential (+0.4V versus Ag/AgCl), providing better accuracy in the detection of H ₂O ₂.

Original language	English
Article number	506862
Journal	Journal of Nanotechnology
DOIs	https://doi.org/10.1155/2011/506862
State	Published - 2011

Access to Document

10.1155/2011/506862

Cite this

@article{de5c0e1d1e524f9f9ce48183f46d7a96,

title = "Bimetallic Pt-Ru nanoparticle catalyst for hydrogen peroxide detection",

abstract = "A bimetallic Pt-Ru nanoparticle catalyst was prepared and characterized for the enhancement of hydrogen peroxide (H 2O 2) detection in biosensing applications. The particles were synthesized via sodium borohydride reduction, with low heat treatment, and characterized by TEM and HRTEM. The chemical composition analyses were performed by EDX. The bimetallic particle diameters ranged from 2 to 12nm, with an average of 4.5nm. The Pt-Ru catalyst exhibited an improved performance at low overpotential (+0.2V versus Ag/AgCl reference electrode) in H 2O 2 detection, suggesting a sensitivity value of 78.95μ·mM -1 (or 402·1 μA·mM -1cm -2) which was 30 higher than that for the single Pt catalyst. The major contribution of this enhancement comes from the stronger oxygen adsorption on Ru metal. The Pt-Ru catalyst also showed a more stable signal at the high overpotential (+0.4V versus Ag/AgCl), providing better accuracy in the detection of H 2O 2.",

author = "Metini Janyasupab and Yuan Zhang and Lin, {Po Yuan} and Brandon Bartling and Jiaqiang Xu and Liu, {Chung Chiun}",

year = "2011",

doi = "10.1155/2011/506862",

language = "???core.languages.en_GB???",

journal = "Journal of Nanotechnology",

issn = "1687-9503",

}

TY - JOUR

T1 - Bimetallic Pt-Ru nanoparticle catalyst for hydrogen peroxide detection

AU - Janyasupab, Metini

AU - Zhang, Yuan

AU - Lin, Po Yuan

AU - Bartling, Brandon

AU - Xu, Jiaqiang

AU - Liu, Chung Chiun

PY - 2011

Y1 - 2011

N2 - A bimetallic Pt-Ru nanoparticle catalyst was prepared and characterized for the enhancement of hydrogen peroxide (H 2O 2) detection in biosensing applications. The particles were synthesized via sodium borohydride reduction, with low heat treatment, and characterized by TEM and HRTEM. The chemical composition analyses were performed by EDX. The bimetallic particle diameters ranged from 2 to 12nm, with an average of 4.5nm. The Pt-Ru catalyst exhibited an improved performance at low overpotential (+0.2V versus Ag/AgCl reference electrode) in H 2O 2 detection, suggesting a sensitivity value of 78.95μ·mM -1 (or 402·1 μA·mM -1cm -2) which was 30 higher than that for the single Pt catalyst. The major contribution of this enhancement comes from the stronger oxygen adsorption on Ru metal. The Pt-Ru catalyst also showed a more stable signal at the high overpotential (+0.4V versus Ag/AgCl), providing better accuracy in the detection of H 2O 2.

AB - A bimetallic Pt-Ru nanoparticle catalyst was prepared and characterized for the enhancement of hydrogen peroxide (H 2O 2) detection in biosensing applications. The particles were synthesized via sodium borohydride reduction, with low heat treatment, and characterized by TEM and HRTEM. The chemical composition analyses were performed by EDX. The bimetallic particle diameters ranged from 2 to 12nm, with an average of 4.5nm. The Pt-Ru catalyst exhibited an improved performance at low overpotential (+0.2V versus Ag/AgCl reference electrode) in H 2O 2 detection, suggesting a sensitivity value of 78.95μ·mM -1 (or 402·1 μA·mM -1cm -2) which was 30 higher than that for the single Pt catalyst. The major contribution of this enhancement comes from the stronger oxygen adsorption on Ru metal. The Pt-Ru catalyst also showed a more stable signal at the high overpotential (+0.4V versus Ag/AgCl), providing better accuracy in the detection of H 2O 2.

UR - http://www.scopus.com/inward/record.url?scp=84855261950&partnerID=8YFLogxK

U2 - 10.1155/2011/506862

DO - 10.1155/2011/506862

M3 - 期刊論文

AN - SCOPUS:84855261950

SN - 1687-9503

JO - Journal of Nanotechnology

JF - Journal of Nanotechnology

M1 - 506862

ER -

Bimetallic Pt-Ru nanoparticle catalyst for hydrogen peroxide detection

Abstract

Access to Document

Fingerprint

Cite this