Active Metals for Chemisorption Analyzers
Options > Active Metals Defaults
Or, click Active Metals on the Sample Description tab when using the Advanced presentation option.
Atomic Weights and Cross-Sectional Areas
Up to 20 elements can be specified. At least one element must have a non-zero % of the sample weight.
Selections | Description | ||
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% of Sample Weight * [column] | Percentage, by weight, of each element contained in the sample. | ||
% Reduced * [column] | The percent of metal reduced during preparation. | ||
Adsorptive [button] |
Click to display and modify both the adsorptives and their associated stoichiometry factor. Stoichiometry factors for each gas are metal-specific.
Stoichiometry Factor. The stoichiometry factor is defined as the moles of metal species covered per mole of adsorptive. |
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Atomic Cross Sect. Area (nm2) [column] |
Atomic cross-sectional area of the element. | ||
Atomic Weight [column] | Atomic weight of the element. | ||
Density g/cm3 [column] | Density of the element. | ||
Element [drop‑down box] | Select or enter the active metal. | ||
MxOy, X * MxOy, Y * [column] |
X and Y values specify the empirical formula for metal and oxygen, respectively, in a metal oxide. | ||
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* Options are shown only when using the Active Metals button on the Sample Description tab.