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Electrostatic Charging of Solid and Gas Phases and Application to Controlling Chemical Reactions

Shen, Xiaozhou
http://rave.ohiolink.edu/etdc/view?acc_num=case1499941952140625

Abstract Details

2017, Doctor of Philosophy, Case Western Reserve University, Chemical Engineering.
Everyone has probably had the experience of feeling shocked when touching a doorknob after walking across a carpet. This is one of the many examples of electrostatic charging on surfaces. Electrostatic charging, or contact electrification, is a well-known phenomenon in various instances. However, the charging mechanism remains poorly understood. This thesis will elucidate the scientific basis of contact charging on quartz (0001) and sapphire (0001) surfaces with first principle electronic calculations, supported by experimental results. Both experiments and simulations show consistent charging direction and magnitude results, demonstrating the possibility to address electrostatic charging on surfaces of more complicated structures. Electrostatic discharge can happen as a result of charge buildup on surfaces, leading to the gas breakdown. Inadvertent gas breakdown can be harmful, such as damage to microelectronic components. Intentional gas breakdown can be utilized to generate plasma. With high reactivity at relative low temperature, plasma is able to dissociate thermodynamically stable molecules near room temperature, such as carbon dioxide and methane. In this work, we modulate power, volume, flow rate, pressure, voltage, discharge gap distance, and the simultaneous use of catalysts on conversion processes to control plasma reactions. Our combined experimental and multiscale simulation techniques provide a guidance to optimize plasma conversion processes.
Daniel Lacks (Advisor)
R. Mohan Sankaran (Committee Member)
Heidi Martin (Committee Member)
Hatsuo Ishida (Committee Member)
167 p.
Chemical Engineering
electrostatics, plasma catalysis, first principles calculation, micro-kinetic modeling

Recommended Citations

Citations

  • Shen, X. (2017). Electrostatic Charging of Solid and Gas Phases and Application to Controlling Chemical Reactions [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1499941952140625

    APA Style (7th edition)

  • Shen, Xiaozhou. Electrostatic Charging of Solid and Gas Phases and Application to Controlling Chemical Reactions. 2017. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1499941952140625.

    MLA Style (8th edition)

  • Shen, Xiaozhou. "Electrostatic Charging of Solid and Gas Phases and Application to Controlling Chemical Reactions." Doctoral dissertation, Case Western Reserve University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1499941952140625

    Chicago Manual of Style (17th edition)

case1499941952140625
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© 2017, some rights reserved.Creative Commons License Electrostatic Charging of Solid and Gas Phases and Application to Controlling Chemical Reactions by Xiaozhou Shen is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.