Mn‐Modified Graphitic Carbon Nitride‐Supported Bimetallic PtNi Nanoparticles for Hydrogen Generation from Hydrous Hydrazine

Abstract

Mn‐modification, as a method of material element modification, has a vital efficacy on the structure of materials, providing abundant active sites for the loading of metal nanoparticles. Herein, highly dispersed PtNi nanoparticles deposited on Mn‐modified graphitic carbon nitride (g‐C3N4) was synergistically constructed by a facile and valid impregnation reduction method. Interestingly, among all the tested samples, the obtained Pt0.6Ni0.4/(MnOx)2‐C3N4 display perfect catalytic activity towards decomposition of hydrous hydrazine to produce hydrogen in alkaline solution, with the value of turnover frequency (TOF) is 2749 h−1 at 323 K. Simultaneously, the as‐synthetic catalyst remains outstanding hydrogen selectivity and stability after five recycles. This work proposes a novel strategy for structural modification catalysts to enhance the catalytic performance for dehydrogenation of hydrous hydrazine.