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Title: Carbon microspheres from ethanol at low temperature: Fabrication, characterization and their use as an electrocatalyst support for methanol oxidation

Abstract

Highlights: ► Carbon microbeads were prepared by the carbonization of ethanol at low temperature. ► The low temperature carbonization of ethanol was catalyzed by iodine. ► Carbon microbeads can serve as ideal candidate for catalyst supports. -- Abstract: Carbon microspheres (CMSs) with a diameter range of 2–3 μm were prepared by the iodine-catalyzed carbonization of ethanol at low temperatures by solvothermal synthesis. The reaction time, concentrations of reactants, temperatures, different alcohols as carbon precursors and reaction environments were systematically altered to determine the optimal synthesis conditions. The size and shape were characterized by scanning and transmission electron microscopy and their structure was characterized by X-ray powder diffraction and Raman spectroscopy. Energy dispersive X-ray spectroscopy, Fourier transform infrared and X-ray photoelectron spectroscopy showed that abundant oxygen-containing functional groups remain on the surface of the carbon spheres. The formation mechanism involves iodine promotion of the oxidation of ethanol, which results in formation of the CMSs. The specific activity of the CMS-supported Pt catalyst is higher than that of a commercial Pt catalyst from E-TEK or the unsupported Pt catalyst.

Authors:
 [1];  [2]; ;  [1];  [1];  [1]
  1. Institute of Functional Nano and Soft Materials and Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22215571
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; CARBON; CARBONIZATION; CATALYST SUPPORTS; ELECTROCATALYSTS; ETHANOL; FABRICATION; FOURIER TRANSFORMATION; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY; X-RAY SPECTROSCOPY

Citation Formats

Lian, Suoyuan, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Ming, Hai, Huang, Hui, Kang, Zhenhui, E-mail: zhkang@suda.edu.cn, and Liu, Yang. Carbon microspheres from ethanol at low temperature: Fabrication, characterization and their use as an electrocatalyst support for methanol oxidation. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.07.029.
Lian, Suoyuan, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Ming, Hai, Huang, Hui, Kang, Zhenhui, E-mail: zhkang@suda.edu.cn, & Liu, Yang. Carbon microspheres from ethanol at low temperature: Fabrication, characterization and their use as an electrocatalyst support for methanol oxidation. United States. doi:10.1016/J.MATERRESBULL.2012.07.029.
Lian, Suoyuan, School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Ming, Hai, Huang, Hui, Kang, Zhenhui, E-mail: zhkang@suda.edu.cn, and Liu, Yang. Thu . "Carbon microspheres from ethanol at low temperature: Fabrication, characterization and their use as an electrocatalyst support for methanol oxidation". United States. doi:10.1016/J.MATERRESBULL.2012.07.029.
@article{osti_22215571,
title = {Carbon microspheres from ethanol at low temperature: Fabrication, characterization and their use as an electrocatalyst support for methanol oxidation},
author = {Lian, Suoyuan and School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034 and Ming, Hai and Huang, Hui and Kang, Zhenhui, E-mail: zhkang@suda.edu.cn and Liu, Yang},
abstractNote = {Highlights: ► Carbon microbeads were prepared by the carbonization of ethanol at low temperature. ► The low temperature carbonization of ethanol was catalyzed by iodine. ► Carbon microbeads can serve as ideal candidate for catalyst supports. -- Abstract: Carbon microspheres (CMSs) with a diameter range of 2–3 μm were prepared by the iodine-catalyzed carbonization of ethanol at low temperatures by solvothermal synthesis. The reaction time, concentrations of reactants, temperatures, different alcohols as carbon precursors and reaction environments were systematically altered to determine the optimal synthesis conditions. The size and shape were characterized by scanning and transmission electron microscopy and their structure was characterized by X-ray powder diffraction and Raman spectroscopy. Energy dispersive X-ray spectroscopy, Fourier transform infrared and X-ray photoelectron spectroscopy showed that abundant oxygen-containing functional groups remain on the surface of the carbon spheres. The formation mechanism involves iodine promotion of the oxidation of ethanol, which results in formation of the CMSs. The specific activity of the CMS-supported Pt catalyst is higher than that of a commercial Pt catalyst from E-TEK or the unsupported Pt catalyst.},
doi = {10.1016/J.MATERRESBULL.2012.07.029},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}