Iron-containing aluminosilicate zeolites and methods of making and using same

A direct synthesis method of making an iron-containing aluminosilicate zeolite, said method comprising:

• mixing a source of alumina, a source of silica, optionally a structural directing agent, (SDA) and with an iron constituent to form an iron containing synthesis mixture;
• and
• performing at least one heating step on said iron containing synthesis mixture to form an iron-containing aluminosilicate zeolite wherein the structure of said zeolite has both framework iron and iron cations on the ion-exchange sites, wherein said zeolite exhibits a selective catalytic reduction of nitrogen oxides with NH3 or greater than 40% conversion at 250-300°C. in exhaust gases prior to aging or exposer to steam, wherein said iron-containing aluminosilicate zeolite has a silia to alumina ratio (SAR) of less than 60, and is chosen from Beta and chabazite type zeolites.