Gas sensitivity of ZnO-based ceramics to vapors of saturated monohydric alcohols
| Autor: | A. S. Tonkoshkur, A. Yu. Lyashkov |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Chemistry
Enthalpy Condensed Matter Physics Kinetic energy Gibbs free energy symbols.namesake Adsorption Chemical engineering Covalent bond Electrical resistivity and conductivity visual_art symbols visual_art.visual_art_medium Physical chemistry General Materials Science Ceramic Physics::Chemical Physics Selectivity |
| Zdroj: | Materials Chemistry and Physics. 140:31-36 |
| ISSN: | 0254-0584 |
| DOI: | 10.1016/j.matchemphys.2013.02.018 |
| Popis: | The sensitivity of electrical conductivity of ZnO-based ceramics to vapors of saturated monohydric alcohols was investigated. Its interconnection with physicochemical parameters of alcohols: molecular mass, entropy, Gibbs energy, enthalpy, the bond breaking energy of С–О and О–Н molecular bonds was analyzed. The selectivity of gas-sensitive properties toward vapors of saturated monohydric alcohols, seen in temperature, kinetic and concentration dependences of response was found. A model linking the sensor response, entropy and molecular mass was proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect