Abstract
ELECTRIFICATION of some dusts by friction, and, hence, the association of sandstorms with static electricity, are well known; laboratory work on the subject has been summarized in two publications dealing with the study of small particles1,2. Further work has shown3 that particles of sodium chloride and, hence, dry sodium chloride aerosol, may, in some circumstances, acquire strong electric charges by emission of photoelectrons. We wish to report here yet another form of electrification of some small particles. This occurs when small particles desorb gas, and it would seem that both the magnitude and the sign of electrification are associated with the chemical treatment which was given to the substance during its preparation.
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MONTEFINALE, A., PETRICONI, G. & PAPÉE, H. Electrification of Porous Alumina on Desorption of Gases. Nature 205, 996–997 (1965). https://doi.org/10.1038/205996a0
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DOI: https://doi.org/10.1038/205996a0
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