Direct synthesis of graphitic carbon nanostructures from saccharides and their use as electrocatalytic supports

被引：92

作者：

Sevilla, M. ^{[1
]}

Sanchis, C. ^{[2
,3
]}

Valdes-Solis, T. ^{[1
]}

Morallon, E. ^{[2
,3
]}

Fuertes, A. B. ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain

[2] Univ Alicante, Dept Quim Fis, E-03080 Alicante, Spain

[3] Univ Alicante, Inst Univ Mat, E-03080 Alicante, Spain

来源：

CARBON | 2008年 / 46卷 / 06期

关键词：

D O I：

10.1016/j.carbon.2008.02.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An easy method is described for fabricating graphitic carbon nanostructures (GCNs) from a variety of saccharides; i.e., a monosaccharide (glucose), a disaccharide (sucrose) and a polysaccharide (starch). The synthesis scheme consists of: (a) impregnation of saccharide with Ni or Fe nitrates, (b) heat treatment under inert atmosphere (N-2) up to 900 degrees C or 1000 degrees C and (c) oxidation in liquid phase to selectively recover the graphitic carbon. This procedure leads to GCNs with a variety of morphologies: nanopipes nanocoils and nanocapsules. Such GCNs have a high crystallinity, as shown by TEM/SAED, XRD and Raman analysis. The GCNs were used as supports for platinum nanoparticles, which were well dispersed (Mean Pt size similar to 2-3 nm). Electrocatalysts thus prepared have electrocatalytic surface areas in the 70-95 m(2) g(-1) Pt range and exhibit high catalytic activities towards methanol electrooxidation. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：931 / 939

页数：9

共 36 条

[1] COBALT-CATALYZED GROWTH OF CARBON NANOTUBES WITH SINGLE-ATOMIC-LAYERWALLS [J].