Chemistry: analytical and immunological testing – Measurement of electrical or magnetic property or thermal... – By means of a solid body in contact with a fluid
Patent
1986-11-04
1989-09-05
Terapane, John F.
Chemistry: analytical and immunological testing
Measurement of electrical or magnetic property or thermal...
By means of a solid body in contact with a fluid
422194, 422 98, 436159, 73DIG4, C12P 734
Patent
active
H00006750
ABSTRACT:
A method and apparatus for controlling a chemical reaction by heterogeneous catalysis, in which a surface acoustic wave (SAW) is propagated along a surface of a piezoelectric element in contact with liquid or gaseous substances to be chemically reacted, to thus generate an electric field at the surface of the element which initiates and sustains the desired reaction. The catalysis rate can be varied by varying the frequency and/or intensity of the surface acoustic wave. The surface of the element may be coated with a very thin film of a catalytic group 8 metal which can be penetrated by the SAW electric field. In such an embodiment, normal catalysis proceeds via chemisorption, and the SAW element field acts to increase the catalysis rate.
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Crowne Frank J.
Leavitt Richard
Morrison Clyde A.
Wortman Donald E.
Elbaum Saul
McDonald Thomas E.
Metzmaier Daniel S.
Terapane John F.
The United States of America as represented by the Secretary of
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