Potassium hydroxide porosity development

While keeping in mind all these implications, the primary requirement in an attempt to store a huge charge based on the electrostatic forces seems to be high surface area of an activated carbon used. Among different ways of porosity development in carbons, the treatment with an excess of potassium hydroxide is most efficient in terms of microporous texture generation. Porous materials with BET surface areas in excess of 3000 m2/g could be prepared using various polymeric and carbonaceous type precursors [5,6]. 

The reagents ratio, reaction temperature, reaction time and inert gas flow have been reported as the variables of KOH activation process, which influence effectively the porosity development on the treatment of a given carbonaceous material with potassium hydroxide [6],... 

In RFCs with alkahne electrolytes, the conducted ion is hydroxide (OH ). The typical electrolyte is a mixture of potassium hydroxide (KOH) and water. The electrolyte is circulated in the cells by a pump and fixed by microporous structures. Another option is to fix the electrolyte in a matrix [38, p. 4-4] or to use an anion-exchange membrane. For electrolysis, polymeric diaphragms have been developed with a high porosity and small pore size in order to achieve low gas permeability [39]. The typical operating temperatures are in the range 60-120 °C, but higher temperatures... 

Couillard and Craighead (1994) showed that direct application of positive photoresist could be achieved on a thick layer of macroporous sihcon and that the photoresist pattern could subsequently be transferred via an O2 plasma etch. The photoresist was developed in a basic solvent (tetramethylammonium hydroxide or TMAH). These developers rapidly dissolve high-porosity microporous silicon features however, PS formed from lightly doped n-type Si can survive this treatment. Positive photoresists and alkaline developers (typically containing metal ions such as potassium borate) can be used directly on PS if the surface is first partially oxidized by exposure to ozone. Features of 500 pm diameter were fabricated in this manner on a 60-cycle ruggate filter on... 

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