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Construction and Calibration of a Spark Discharge Generator to Create Mono-disperse Metallic Aerosol Nanoparticles

Pautler, Jonathan LU (2012) FYSM31 20121
Solid State Physics
Department of Physics
Abstract
A Spark Discharge Generator is a versatile device which can be used to generate nanoparticles from any two conducting sources. The device constructed during this thesis project was to make metallic mono-disperse aerosol nanoparticles towards applications in catalysis and nanowire growth. The operating principle is two electrodes separated by a gap with an applied voltage above the discharge voltage. This high potential creates an ionization channel and a spark is discharged between the two electrodes causing a high local temperature on the ends of the electrodes which causes thermal evaporation of the material into the surrounding gas. These initial particles with sizes on the atomic scale collide and adhere by a process called coagulation... (More)
A Spark Discharge Generator is a versatile device which can be used to generate nanoparticles from any two conducting sources. The device constructed during this thesis project was to make metallic mono-disperse aerosol nanoparticles towards applications in catalysis and nanowire growth. The operating principle is two electrodes separated by a gap with an applied voltage above the discharge voltage. This high potential creates an ionization channel and a spark is discharged between the two electrodes causing a high local temperature on the ends of the electrodes which causes thermal evaporation of the material into the surrounding gas. These initial particles with sizes on the atomic scale collide and adhere by a process called coagulation creating larger nanoparticles which may then be filtered, reshaped, counted, and deposited. A theoretical introduction is presented, a description of the components is included, some techniques for calibration of the device are described, and initial data is shown. (Less)
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author
Pautler, Jonathan LU
supervisor
organization
alternative title
Construction of a Spark Discharge Generator for Aerosol Nanoparticles
course
FYSM31 20121
year
type
H2 - Master's Degree (Two Years)
subject
keywords
nanoparticle, nanoparticles, Spark, Discharge, Generator, catalysis, coagulation, high voltage, thermal, evaporation, aerosol, metallic, monodisperse, nano-particles, mono-disperse, Jonathan, Pautler, Jonathan Pautler
language
English
additional info
Please contact me for questions or concerns over the document. I hope you enjoy reading and perhaps gain something from it!
id
3163926
date added to LUP
2012-11-20 17:29:04
date last changed
2012-11-20 17:29:04
@misc{3163926,
  abstract     = {A Spark Discharge Generator is a versatile device which can be used to generate nanoparticles from any two conducting sources. The device constructed during this thesis project was to make metallic mono-disperse aerosol nanoparticles towards applications in catalysis and nanowire growth. The operating principle is two electrodes separated by a gap with an applied voltage above the discharge voltage. This high potential creates an ionization channel and a spark is discharged between the two electrodes causing a high local temperature on the ends of the electrodes which causes thermal evaporation of the material into the surrounding gas. These initial particles with sizes on the atomic scale collide and adhere by a process called coagulation creating larger nanoparticles which may then be filtered, reshaped, counted, and deposited. A theoretical introduction is presented, a description of the components is included, some techniques for calibration of the device are described, and initial data is shown.},
  author       = {Pautler, Jonathan},
  keyword      = {nanoparticle,nanoparticles,Spark,Discharge,Generator,catalysis,coagulation,high voltage,thermal,evaporation,aerosol,metallic,monodisperse,nano-particles,mono-disperse,Jonathan,Pautler,Jonathan Pautler},
  language     = {eng},
  note         = {Student Paper},
  title        = {Construction and Calibration of a Spark Discharge Generator to Create Mono-disperse Metallic Aerosol Nanoparticles},
  year         = {2012},
}