TY - JOUR
T1 - Synthesis of porous carbon and silica spheres using PEO-PF polymer blends
AU - Chang-Chien, Chun Yi
AU - Hsu, Chun Han
AU - Lin, Hong Ping
AU - Tang, Chih Yuan
AU - Lin, Ching Yen
N1 - Funding Information:
Acknowledgment Authors thank Prof. Hsisheng Teng for many worthy discussions on this paper and Pan Asia Chemical Corporation and Chung-Chun Plastic, Taiwan for providing PEO and PF polymers. The research was financially supported by the National Science Council of Taiwan (NSC93-2113-M-006-003 and NSC93-2323-B-006-009).
PY - 2006/8
Y1 - 2006/8
N2 - In this paper, we performed a physical mixture of PEO and PF polymers (i.e. a polymer blend) as an organic template for synthesizing PF-PEO-silica homogeneous composites in a dilute silicate solution at pH = 4.0-5.0. The PF-PEO-silica composites exhibit spherical morphology, in micrometer dimension, and the sphere size is dependent on the pH value of the solution. After undergoing calcination to remove the organic part of the PF-PEO-silica composites with and without the hydrothermal treatment, porous silica spheres of different pore sizes were obtained. Due to the existence of the carbonizing PF polymer in the PF-PEO-silica composite, porous carbon spheres can be conveniently obtained from pyrolysis of the PF-PEO-silica composites under a N 2 atmosphere and HF-etching procedures. TEM images demonstrate that the mesostructures of the mesoporous silica and porous carbons are disordered.
AB - In this paper, we performed a physical mixture of PEO and PF polymers (i.e. a polymer blend) as an organic template for synthesizing PF-PEO-silica homogeneous composites in a dilute silicate solution at pH = 4.0-5.0. The PF-PEO-silica composites exhibit spherical morphology, in micrometer dimension, and the sphere size is dependent on the pH value of the solution. After undergoing calcination to remove the organic part of the PF-PEO-silica composites with and without the hydrothermal treatment, porous silica spheres of different pore sizes were obtained. Due to the existence of the carbonizing PF polymer in the PF-PEO-silica composite, porous carbon spheres can be conveniently obtained from pyrolysis of the PF-PEO-silica composites under a N 2 atmosphere and HF-etching procedures. TEM images demonstrate that the mesostructures of the mesoporous silica and porous carbons are disordered.
UR - https://www.scopus.com/pages/publications/33744526767
UR - https://www.scopus.com/pages/publications/33744526767#tab=citedBy
U2 - 10.1007/s10934-006-8004-7
DO - 10.1007/s10934-006-8004-7
M3 - Article
AN - SCOPUS:33744526767
SN - 1380-2224
VL - 13
SP - 195
EP - 199
JO - Journal of Porous Materials
JF - Journal of Porous Materials
IS - 3
ER -