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<p>This document specifies the determination of the overall specific external and internal surface area of either disperse (e.g. nano-powders) or porous, solids by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller method,<sup>[1]</sup> based on the 2015 International Union for Pure and Applied Chemistry (IUPAC) recommendations<sup>[3]</sup>.</p>
<p>NOTE For solids exhibiting a chemically heterogeneous surface, for example, metal-carrying catalyst, the BET method gives the overall surface area, whereas the metallic portion of the surface area can be measured by chemisorption methods.</p>
Reģistrācijas numurs (WIID)
71014
Darbības sfēra
<p>This document specifies the determination of the overall specific external and internal surface area of either disperse (e.g. nano-powders) or porous, solids by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller method,<sup>[1]</sup> based on the 2015 International Union for Pure and Applied Chemistry (IUPAC) recommendations<sup>[3]</sup>.</p>
<p>NOTE For solids exhibiting a chemically heterogeneous surface, for example, metal-carrying catalyst, the BET method gives the overall surface area, whereas the metallic portion of the surface area can be measured by chemisorption methods.</p>
