Synthesis of gadolinium hydroxo nitrate under microwave-hydrothermal treatment conditions

Abstract

A new effective method for the synthesis of the layered hydroxo compounds of gadolinium based on the microwave-hydrothermal treatment of gadolinium salt solutions in the presence of hexamethylenetetramine was proposed. The effect of synthesis conditions on the phase composition and the micromorphology of the synthesis products was analyzed. It was found that an increase in the temperature and duration of the microwave-hydrothermal treatment led to the disordering of the layered structure of the layered hydroxo compounds of gadolinium and to an increase in the concentration of carbonate groups in the resulting layered hydroxo compounds of gadolinium.