This application note describes the analysis of full gas adsorption / desorption isotherms of carbon black samples using a Micromeritics 3Flex micropore instrument. From the isotherms, BET surface area together with micro-pore, meso-pore and small macro-pore size distributions can be ascertained along with pore volume and pore area. The use of carbons is commonplace throughout many industries and applications. Carbons, often as carbon blacks, play an essential role in a range of energy production and storage devices such as re-chargeable batteries, fuel cells and super-capacitors. They serve as electro-catalysts, catalyst supports and membrane materials. They may be present as pure carbon or doped / impregnated with various metal oxides or precious metals. The use of carbon in the form of activated carbon, carbon black, carbon nano-tubes, graphene, graphite etc, are all being explored or utilised at present. Optimisation of electrode porosity is essential as it directly affects electrolyte transport within the electrodes, the number and availability of active electrode sites, electrode conductivity, and the intercalation of charge carrier species. Cyclability can also be maximized through minimising pore blocking BET surface area and total pore volume are very common measurements which feature in the characterisation of anode and cathode materials.
This application note describes the analysis of full gas adsorption / desorption isotherms of carbon black samples using a Micromeritics 3Flex micropore instrument. From the isotherms, BET surface area together with micro-pore, meso-pore and small macro-pore size distributions can be ascertained along with pore volume and pore area. The use of carbons is commonplace throughout many industries and applications. Carbons, often as carbon blacks, play an essential role in a range of energy production and storage devices such as re-chargeable batteries, fuel cells and super-capacitors. They serve as electro-catalysts, catalyst supports and membrane materials. They may be present as pure carbon or doped / impregnated with various metal oxides or precious metals. The use of carbon in the form of activated carbon, carbon black, carbon nano-tubes, graphene, graphite etc, are all being explored or utilised at present. Optimisation of electrode porosity is essential as it directly affects electrolyte transport within the electrodes, the number and availability of active electrode sites, electrode conductivity, and the intercalation of charge carrier species. Cyclability can also be maximized through minimising pore blocking BET surface area and total pore volume are very common measurements which feature in the characterisation of anode and cathode materials.
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