Bimetallic Pt-M (M = Cu, Ni, Pd, and Rh) nanoporous for H2O 2 based amperometric biosensors

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Title:	Bimetallic Pt-M (M = Cu, Ni, Pd, and Rh) nanoporous for H2O 2 based amperometric biosensors
Authors:	劉炯權;Janyasupab, Metini;Liu, Chen-Wei;Zhang, Yuan;Wang, Kuan-Wen;Liu, Chung-Chiun
Contributors:	工學院材料科學與工程研究所
Keywords:	Amperometry;ascorbic acid;Bimetallic nanoparticle;Biosensor;biosensors;catalysts;electrochemistry;enzymatic reactions;hydrogen;hydrogen peroxide;nickel;oxidation;platinum;transmission electron microscopy;uric acid;X-ray diffraction
Date:	2013-01-01
Issue Date:	2026-04-23 11:29:08 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： Hydrogen dioxide, H2O2, is an electrochemically active species and involved in many enzymatic reactions. Therefore, detection of H2O2 is often used to quantify H2O2 generated analyte in an enzymatic reaction for biosensing application. Platinum based catalysts are usually employed enhancing the oxidation of H2O2 resulting in an improved biosensor. In this study, platinum based bimetallic catalysts including PtRh, PtPd, PtCu, and PtNi were examined for their sensitivity, selectivity to H2O2 detection. Interference by ascorbic acid and uric acid at concentration of 15mg/L and 85mg/L, the highest physiological level, were investigated, respectively. Preparation and characterization of these bimetallic catalysts were undertaken including TEM and XRD studies. The electrochemical detections of H2O2 by these bimetallic catalysts were assessed. Experimental results would aid in the advancement of bimetallic Pt based catalysts for H2O2 detection in biosensing applications. Among these bimetallic catalysts, PtRh exhibited an enhanced sensitivity of 839.9μAmM−1cm−2 (R2=0.998) with a low 0.86% deviation in the presence of the AA and UA. 出版者： Elsevier B.V 出版日期： 2013-03-31 出處： Sensors and Actuators B: Chemical, 2013-03, Vol.179, p.209-214 版權： 2012 Elsevier B.V. 識別號： ISSN: 0925-4005 識別號： EISSN: 1873-3077 識別號： DOI: 10.1016/j.snb.2012.09.099
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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