Enhancing the storage capacity of tungsten oxides by gaseous nitriding (opens in new tab)

Tungsten nitride (WN) is a compelling candidate for high-performance supercapacitors, yet its practical application is often hindered by morphological limitations and precursor aggregation. This study presents a targeted synthesis strategy to overcome these challenges by engineering the morphology of the tungsten oxide (WOx) precursor prior to ammonia nitridation. By systematically tuning the molar ratio of potassium sulfate and the concentration of hydrochloric acid during hydrothermal synth...