| http://www.w3.org/ns/prov#value | - The active catalyst atoms useful in practicing the present invention are metal atoms or elements, such as iron or other metals, that can form nanocatalyst particles capable of catalyzing desired reactions during combustion of coal (e.g., the conversion of NOx to non-polluting gases such as N2 during pre-combustion and/or the conversion of CO to CO2 and NO to N2 during combustion).
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