Tuesday, 3 October 2017
Prince George's Exhibit Hall D/E (Gaylord National Resort and Convention Center)
The nitrogen doped carbon nanotubes (NCNTs) were prepared by chemical vapor deposition (CVD) using 900℃ or 950℃. The ruthenium selenide (Ru85Se15) nanoparticles supported on NCNTs were then synthesized through microwave assisted route. It was found that the amorphous Ru85Se15 nanoparticles were uniformly distributed on NCNTs with no apparent particle agglomeration being observed. The as-prepared Ru85Se15/NCNTs exhibited high electrocatalytic activity toward oxygen reduction reaction and relatively good stability. The half-wave potentials reached 0.57 ~ 0.58 V and nearly 50 mV degradation was observed upon 1400 cycles by voltammetry in 0.5 mol L-1 sulfate acid solutions.