Paper Title:
Improvement of Mesopore Structure of Resorcinol and Formaldehyde Carbon Cryogels by Acid Solution
  Abstract

Resorcinol and formaldehyde (RF) carbon cryogels are prepared by sol-gel polycondensation by using sodium carbonate (C) as a catalyst with water (W) as solvent, immersed in acid solution, hydrochloric acid (HCl), dried by freeze-drying technique and then carbonized under inert atmosphere, respectively. Compared with their carbon precursors, both Vmes and mesopore size distributions of all carbon cryogels can be developed since the pore shrinkage is the crucial role in the change of pore structure of carbon gels. HCl may promote the strength of small pore structure and increase the pore shrinkage of large pore structure. Consequently, the treatment of HCl does not only enhance the partial collapse of large pore structure, the treatment also increases the strength of small pore structure to inhibit the shrinkage of this structure during carbonization as well.

  Info
Periodical
Advanced Materials Research (Volumes 55-57)
Main Theme
Edited by
Tawee Tunkasiri
Pages
529-532
DOI
10.4028/www.scientific.net/AMR.55-57.529
Citation
K. Kraiwattanawong, P. Kitchaiya, A. Neramittagapong, P. Praserthdam, H. Tamon, "Improvement of Mesopore Structure of Resorcinol and Formaldehyde Carbon Cryogels by Acid Solution", Advanced Materials Research, Vols. 55-57, pp. 529-532, 2008
Online since
August 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ping Tang, Xiong Yang, Ying Shu Liu
Abstract:Five types of active carbon’s adsorption isotherm of nitrogen at 77K were measured, and their adsorption characteristic were analysed. The...
586
Authors: Zhi Jun Ma, Kuan Zhang, Yi Min Zhu, Yue Xin Han
Chapter 1: Mineral Materials
Abstract:In this paper, the natural zeolite as raw material, zeolites was prepared by organic amines hydrothermal synthesis. The results are...
30
Authors: Qi Xia Liu, Tao Ji, Li Fen He, Qiang Gao
Chapter 2: Materials Science and Engineering
Abstract:Various jute-based activated carbon fibers were prepared by using jute fibers as raw materials, phosphoric acid as activating agent and...
1428
Authors: Fei Shi, Jing Xiao Liu, Xiao Li Dong, Zhi Wei Zhang, Peng Cheng Du, Xiao Jie Wang, Xin Xin Zhang
Chapter 1: Material Science and Technology
Abstract:Hydrophobic silica aerogels were prepared from industrial microsilica via ambient pressure drying. The process consists of two stages,...
103
Authors: Nur Shahirah Rusli, Norzita Ngadi
Chapter 5: Engineering in Area of Use Renewable Energy Systems, Environmental Engineering and Biotechnologies
Abstract:Nowadays, lignin is of special interest since it is the second most abundant biopolymer after cellulose. Given its extremely low cost and...
242