In this study,a novel approach is proposed to achieve the uniformly dispersed Ru nanoparticles with N coordination loaded on three-dimensionally ordered macro/mesoporous carbon(3DOMMC)through simultaneous pyrolysis of...In this study,a novel approach is proposed to achieve the uniformly dispersed Ru nanoparticles with N coordination loaded on three-dimensionally ordered macro/mesoporous carbon(3DOMMC)through simultaneous pyrolysis of Ru^(3+)and cyanamide on 33DOMMC.In an alkaline medium,the synthesized catalysts exhibit exceptional hydrogen evolution reaction(HER)performance.Specificall,Ru-N/3DOMMC demonstrates a significantly low overpotential of 13.8 mV to achieve acrent density of 10 mA.cmzandit exhibits a mass activity 17.5 times higher than that of commercial Pt/C.The outstanding performance could be attributed to the ultrahigh Ru dispersion and more efficient contact between active sites and reactant,which derived from the large specific surface area and interconnective three-dimensionally macro/mesopores of 3DOMMC.展开更多
基金the National Natural Science Foundation of China(22005338 and 22035009)the Science Foundation of China University of Petroleum,Beijing(Grant number 2462022YXZZ007).
文摘In this study,a novel approach is proposed to achieve the uniformly dispersed Ru nanoparticles with N coordination loaded on three-dimensionally ordered macro/mesoporous carbon(3DOMMC)through simultaneous pyrolysis of Ru^(3+)and cyanamide on 33DOMMC.In an alkaline medium,the synthesized catalysts exhibit exceptional hydrogen evolution reaction(HER)performance.Specificall,Ru-N/3DOMMC demonstrates a significantly low overpotential of 13.8 mV to achieve acrent density of 10 mA.cmzandit exhibits a mass activity 17.5 times higher than that of commercial Pt/C.The outstanding performance could be attributed to the ultrahigh Ru dispersion and more efficient contact between active sites and reactant,which derived from the large specific surface area and interconnective three-dimensionally macro/mesopores of 3DOMMC.
