Publication Date:
2019
Description:
〈p〉Publication date: 30 November 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Applied Surface Science, Volume 495〈/p〉
〈p〉Author(s): Yanting Huang, Wugang Liao〈/p〉
〈div xml:lang="en"〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉A facile one-pot hydrothermal method was proposed to fabricate nitrogen-doped carbon quantum dots (N-doped CQDs) on the surface of nitrogen-doped carbon nanotube (N-doped CNTs). The microstructure of the N-doped CQDs/N-doped CNTs hybrid was investigated by using transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, their electrocatalytic activity of the N-doped CQDs/N-doped CNTs hybrid in oxygen reduction reaction (ORR) was systematically evaluated and it was found that the N-doped CQDs/N CNTs hybrid deposited as such exhibits a high performance for ORR in terms of a low onset potential of −0.03 V vs. Ag/AgCl, a high limiting diffusion current density of ~5.5 mA cm〈sup〉−2〈/sup〉, and a one-step 4e ORR process, holding great potential for future metal-free catalysts.〈/p〉〈/div〉
〈/div〉
Print ISSN:
0169-4332
Electronic ISSN:
1873-5584
Topics:
Physics
