“…Indeed, some monometallic derivatives have proved to be adequate to replace noble metals in a variety of catalytic processes [12]. Molybdenum and tungsten oxynitrides are examples of promising materials in this field owing to their activity and selectivity in processes like ammonia synthesis [13][14][15], Fischer-Tropsh reaction [16][17][18][19][20], hydrogenation [21][22][23][24], oxidation [25][26], hydrodenitrogenation and hydrodesulfurization [27][28][29][30][31]. Also, it has been demonstrated how, in many cases, the presence of additional metallic elements in the catalyst can improve its performance.…”