Facile synthesis of platinum nanoparticle-containing porous carbons, and their application to amperometric glucose biosensing
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- 作者：Tomoki Yabutani (1)
Geoffrey I. N. Waterhouse (2)
Dongxiao Sun-Waterhouse (2)
James B. Metson (2)
Akiko Iinuma (1)
Le Thi Xuan Thuy (1) (3)
Yohei Yamada (1)
Toshio Takayanagi (1)
Junko Motonaka (1) - 关键词：Agarose ; Electrocatalysis ; Glucose biosensing ; Platinum nanoparticle ; Porous carbon ; Polyol synthesis
- 刊名：Microchimica Acta
- 出版年：2014
- 出版时间：November 2014
- 年：2014
- 卷：181
- 期：15-16
- 页码：1871-1878
- 全文大小：627 KB
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Geoffrey I. N. Waterhouse (2)
Dongxiao Sun-Waterhouse (2)
James B. Metson (2)
Akiko Iinuma (1)
Le Thi Xuan Thuy (1) (3)
Yohei Yamada (1)
Toshio Takayanagi (1)
Junko Motonaka (1)
1. Department of Life System, Institute of Technology and Science, The University of Tokushima, 2-1 Minamijosanjima, Tokushima, 7708506, Japan
2. School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
3. Faculty of Environment, Danang University of Technology, 54 Nguyen Luong Bang Street, Danang City, Vietnam- ISSN：1436-5073
- 作者单位：Tomoki Yabutani (1)
文摘
This study describes the facile synthesis of platinum nanoparticle-containing porous carbons (Pt/C) by carbonization of freeze-dried agarose gels containing potassium tetrachloroplatinate under a nitrogen atmosphere at 800 °C. By adjusting the ratio between agarose and platinate in the freeze-dried gels, the Pt content in the final Pt/C products could be systematically varied from 0-0?wt.%. Transmission electron microscopy, inductively coupled plasma atomic emission spectrometry, X-ray photoelectron spectroscopy, Raman spectroscopy, and nitrogen physisorption measurements revealed that the Pt/C materials obtained by this method possess high surface areas (350-00?m2?g?), narrow Pt nanoparticle size distributions (6 ± 3?nm) and nanocrystalline graphite –like carbon character. By immobilization of glucose oxidase on the surface of a 4?wt.% Pt/C electrocatalyst prepared by this route, a very sensitive amperometric glucose biosensor was obtained (response time ?; and a linear response with glucose concentration up to 10?mM). The simplicity and versatility of the described synthetic method suggests its application to the preparation of carbon supported noble metal catalysts including palladium/C and gold/C. Figure This study describes the facile synthesis of platinum nanoparticle-containing porous carbons (Pt/C) by carbonization of freeze-dried agarose gels containing potassium tetrachloroplatinate. The Pt/C materials exhibited excellent electrocatalytic activities, as demonstrated by their successful integration into amperometric glucose biosensor