METHOD Preparation of samples for porosimetry through channels nanometer-sized solid-state membrane with a transmission electron microscope

摘要

1.method of preparing sample u0434u043bu00a0 u043fu043eu0440u043eu043cu0435u0442u0440u0438u0438 cutting channels u043du0430u043du043eu043cu0435u0442u0440u0438u0447u0435u0441u043au043eu0433u043e size in solid-state u043cu0435u043cu0431u0440u0430u043du0430u0445 by u043fu0440u043eu0441u0432u0435u0447u0438u0432u0430u044eu0449u0435u0439 electronic microscopy. including u0433u0430u043bu044cu0432u0430u043du0438u0447u0435u0441u043au043eu0435 deposition of sediment in cutting u0442u0440u0430u0432u043bu0435u043du044bu0445 channels of the membrane, vacuum tight firm to the metal foil and the substrate, fine u0438u0447u0430u044eu0449u0438u0439u0441u00a0 orderthat membrane vacuum tightly against the end surface of the metal foil, the substrate or wire - substrate and u043eu0441u0430u0436u0434u0435u043du0438u00a0 metal plating process cutting u0442u0440u0430u0432u043bu0435u043du044bu0445 channels lead to the u043eu0431u0440u0430u0437u043eu0432u0430u043du0438u00a0 "u0433u0440u0438u0431u043au043eu0432u00bb on the surface of the membrane.;2. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that as the material for the substrate using metal with more negative electrochemical potential in relation to the metal ga u043bu044cu0432u0430u043du0438u0447u0435u0441u043au0438 u043eu0441u0430u0436u0434u0430u0435u043cu043eu043cu0443 in u0442u0440u0430u0432u043bu0435u043du044bu0435 channels and process for metal plating u043eu0441u0430u0436u0434u0435u043du0438u00a0 u0442u0440u0430u0432u043bu0435u043du044bu0445 channels in the area of the substrate leads to the ends u043eu0431u0440u0430u0437u043eu0432u0430u043du0438u00a0 "u0433u0440u0438u0431u043a u043eu0432u00bb both at the bottom and at the top u043fu043eu0432u0435u0440u0445u043du043eu0441u0442u00a0u0445 membranes.;3. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 2, because of the obtained composite (membrane + u043du0430u043du043eu043fu0440u043eu0432u043eu043bu043eu0447u043au0438) cut a narrow strip and in the thin layer of u043au043bu0435u00a0, u043fu0435u0440u043fu0435u043du0434u0438u043au0443u043bu00a0u0440u043du044bu043c you u0440u0435u0437u0430u043du043du043eu0439 strip, then bleaching out the material of the membrane to u043eu0431u0440u0430u0437u043eu0432u0430u043du0438u00a0 in layer u043au043bu0435u00a0 cross slits with embedded in her u043du0430u043du043eu043fu0440u043eu0432u043eu043bu043eu0447u043au0430u043cu0438.