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DEVELOPMENT OF AN AC-POWERED ATMOSPHERIC-PRESSURE, FLOWING MICROPLASMA FOR GAS-PHASE NANOPARTICLE SYNTHESIS

Huang, I-Min
http://rave.ohiolink.edu/etdc/view?acc_num=case1409739012

Abstract Details

2015, Master of Sciences (Engineering), Case Western Reserve University, Chemical Engineering.
We present an alternating current (AC)-powered atmospheric-pressure microplasma for gas-phase synthesis of nanoparticles. The microplasma is formed inside a quartz tube with a powered copper ring electrode on the outside and a tungsten wire on the inside, in contact with the plasma. The electrical properties of the plasma including the voltage and current waveforms are characterized as a function of input power. The plasma length is found to increase with increasing power, reaching a maximum of 4.3 cm at a peak-to-peak voltage of 4 kV. As proof-of-concept, we demonstrate the synthesis of nickel nanoparticles from nickelocene vapor. The particles are monitored in real time by aerosol mobility measurements. Particle size distributions are obtained as a function of nickelocene vapor concentration and input power. Increasing the nickelocene concentration is found to increase the mean diameter and produce a broader range of particle sizes. Interestingly, at higher powers and longer plasma lengths, the particle diameter is found to decrease. Finally, we show that this design allows arrays of microplasmas to be formed with a single power supply and mass flow controller, offering a potential route to scaling up nanoparticle synthesis.
SANKARAN R. MOHAN (Committee Chair)
27 p.
Chemical Engineering; Physics
microplasma, gas-phase synthesis of nanoparticles, microplasma, scaling up nanoparticle synthesis, plasma array

Recommended Citations

Citations

  • Huang, I.-M. (2015). DEVELOPMENT OF AN AC-POWERED ATMOSPHERIC-PRESSURE, FLOWING MICROPLASMA FOR GAS-PHASE NANOPARTICLE SYNTHESIS [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1409739012

    APA Style (7th edition)

  • Huang, I-Min. DEVELOPMENT OF AN AC-POWERED ATMOSPHERIC-PRESSURE, FLOWING MICROPLASMA FOR GAS-PHASE NANOPARTICLE SYNTHESIS. 2015. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1409739012.

    MLA Style (8th edition)

  • Huang, I-Min. "DEVELOPMENT OF AN AC-POWERED ATMOSPHERIC-PRESSURE, FLOWING MICROPLASMA FOR GAS-PHASE NANOPARTICLE SYNTHESIS." Master's thesis, Case Western Reserve University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1409739012

    Chicago Manual of Style (17th edition)

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© 2014, some rights reserved.Creative Commons License DEVELOPMENT OF AN AC-POWERED ATMOSPHERIC-PRESSURE, FLOWING MICROPLASMA FOR GAS-PHASE NANOPARTICLE SYNTHESIS by I-Min Huang 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.