fulltext.study @t Gmail

Efficient and poison-tolerant PdxAuy/C binary electrocatalysts for glucose electrooxidation in alkaline medium

Paper ID Volume ID Publish Year Pages File Format Full-Text
45931 46427 2014 7 PDF Available
Title
Efficient and poison-tolerant PdxAuy/C binary electrocatalysts for glucose electrooxidation in alkaline medium
Abstract

•PdxAuy/C binary catalysts were prepared by a pulse microwave assisted polyol method.•PdxAuy/C exploits the high activity of Pd and high poison tolerance of Au for glucose oxidation.•Pd30Au70/C shows a desirable activity and poison tolerance for glucose oxidation.•Pd30Au70/C exhibits a very sensitive amperometric response for glucose molecules.

Carbon supported PdxAuy binary catalysts for glucose electrooxidation and detection were prepared by a modified pulse microwave assisted polyol method. The physico-chemical properties were obtained by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS). The electrochemical activity was investigated through cyclic voltammetry and chronoamperometry. Based on the experimental results, it can be concluded that the combination of Pd and Au to get PdxAuy binary catalysts can take advantage of the high activity and low overpotential of Pd to glucose electrooxidation and poison tolerance of Au. More precisely, when the Pd/Au molar ratio was 30:70 (Pd30Au70/C), a desirable comprehensive performance, considering from current density, overpotential, and poison tolerance ability, was obtained. It was also found that Pd30Au70/C exhibited a very sensitive and linear amperometric response for glucose molecules, promising for the development of electrochemical glucose sensors and direct glucose fuel cells.

Graphical abstractThe optimized carbon supported PdxAuy binary catalyst (Pd30Au70/C), synthesized by a modified pulse microwave assisted polyol method, exhibited a desirable comprehensive performance to glucose electrooxidation, with a very sensitive and linear amperometric response for glucose molecules, which is promising for the development of electrochemical glucose sensors and direct glucose fuel cells.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Glucose electrooxidation; PdxAuy/C anodes; Alkaline media; Glucose sensors; Glucose fuel cells
First Page Preview
Efficient and poison-tolerant PdxAuy/C binary electrocatalysts for glucose electrooxidation in alkaline medium
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 150–151, 5 May 2014, Pages 268–274
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us