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Solid state surface catalysis reactor

A solid-state surface and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc.

Inactive Publication Date: 2003-04-09
NEOKISMET L L C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] The stated observations all imply that the efficiency of pulsed operation

Method used

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Embodiment Construction

[0038] An exemplary embodiment of the present invention uses electrons as hot carriers and a p-n junction diode as a semiconductor diode. The base is an n-type semiconductor and the emitter is a p-type semiconductor. The forward bias of the p-n junction diode injects minority carrier electrons into the conduction band of the p-type emitter where they become minority carriers. The minority carriers diffuse and migrate into the catalytic collector, and may also resonantly couple into the excited structure of the adsorbate-catalyst system, provided that the distance between the junction (junction) and the catalytic collector is low It may be several times longer than the diffusion length of the minority carriers in the p-type semiconductor. For example, when InSb, InAs or some InGaAsSb alloys are the semiconductor, the diffusion length can vary from about 100 nanometers to several micrometers.

[0039] According to the invention, said minority carrier electrons are injected or ...

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Abstract

A method and apparatus to stimulate chemical reactions on a catalyst surface (116) using electricity, and the reverse process to convert energy released from chemical reactions into electricity. A reversible emitter (102) generates electrons which are injected into reactants on the catalyst surface (116), exciting chemically reactive vibrational resonances. Hot electrons created in the emitter region of a semiconductor junction (110) diffuse to the co-located collector region and catalyst surface (116). Catalyst clusters or films bonded on the collector surface transfer the hot electrons to or from the catalyst surface (116) having adsorbed reactants. The dimension of the catalyst-collector (104) is less than the energy mean free path of hot electrons. The hot electrons excite reactant vibrations before thermalizing with the substrate lattice thereby accelerating reactions. The hot electrons are also generated by the same reactions on a catalyst surface. The method and apparatus is reversible and may be operated as an electric generator using chemical reactions.

Description

field of invention [0001] The present invention relates generally to an energy generator, and more particularly to a method and apparatus for incorporating an excitation structure of a semiconductor substrate onto an excitation structure of an active adsorbate on a catalyst surface. Background technique [0002] Recent experimental and theoretical developments in the field of surface science have shown how hot electrons induce thermal vibrations of molecules or atoms adsorbed on catalyst surfaces. The energy of a thermal electron is defined as an electron with an effective temperature between 600K and 60,000K, which represents an equivalent energy between 0.05 and about 5eV, or many times the thermal energy at room temperature. 0.026eV at 300K. [0003] It has been found that hot electrons diffusing at the surface of the catalyst metal interact strongly with the chemical species on the adsorbed surface, also known as the adsorbate, and that it can be compared to the lattice...

Claims

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Application Information

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IPC IPC(8): B01J19/08B01J35/00H02N11/00
CPCB01J35/0033B01J35/002H02N11/002B01J35/33
Inventor 安东尼·C·祖佩罗贾瓦哈·M·吉德瓦尼
Owner NEOKISMET L L C
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