Electrochemical and photographic detection of cavitation phenomena within a variable frequency acoustic field
Article Abstract:
Research was conducted to examine the electrochemical and photographic detection of cavitation phenomena within a variable frequency acoustic range of 20 to 100 kHz. The objective is to investigate the comparative effects of 20 to 100 kHz ultrasound. Results demonstrate that mass transfer coefficients within acoustic cells are severely localized with dynamic active regions within the sonoelectrochemical cell. The photographic investigation of the cell in operation by luminol provided additional evidence for the inhomogeneity of the cavitation field.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Acoustic multibubble cavitation in water: A new aspect of the effect of a rare gas atmosphere on bubble temperature and its relevance to sonochemistry
Article Abstract:
Acoustic cavitation generates transient microbubbles with extremely high temperatures and high pressures, which could provide unique reaction routes. Results show that the bubble temperature induced by a high frequency ultrasound is almost the same among different rare gases and the chemical efficiency is in proportion to the gas solubility of rare gases, which could be closely related to the number of active bubbles is presented.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Cavitation, shock waves and the invasive nature of sonoelectrochemistry
Article Abstract:
The invasive nature of electrodes placed in sound fields and perturbations of the sound field due to the presence of the electrode support are studied, which is found to be negligible under the conditions investigated. It is observed that the shock wave emission from cavity collapse processes significantly alter the results produced.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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