| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
|
| Presentation Title |
Low/Intermediate Temperature Polysiloxane Derived Ceramics with Increased Carbon for Electrical Applications |
| Author(s) |
Michelle Greenough, Zeyu Zhao, Jianhua Tong, Luiz G. Jacobsohn, Rajendra K. Bordia |
| On-Site Speaker (Planned) |
Michelle Greenough |
| Abstract Scope |
Low/Intermediate temperature (below 1000°C) pyrolyzed polymer derived ceramics are amorphous ceramics with highly porous microstructure. They have a unique combination of properties including high surface area, and pore size in the range of micropores. If high electrical conductivity can be realized, they would be candidates for safer anodes for Li-ion batteries. In this research, we present results on samples composed of polysiloxane polymers, with increasing weight percent of divinylbenzene and pyrolyzed at temperatures ranging from 600 to 900°C. The effect of pyrolysis temperature and carbon content on the resultant material’s microstructure, chemistry, and electrical conductivity was investigated by using Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and electrochemical impedance spectroscopy (EIS). These results will be used to determine the relationship between the composition, microstructure, and nature of carbon on the electrical conductivity. |