氮掺杂碳纳米带的制备及其电催化析氢性能研究

In this paper, one-dimensional carbon nanoribbons (CNRs) were successfully prepared through one-step thermal treatment using a salt template method with 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) as the precursor and sodium chloride (NaCl) microcrystals as the growth template. The microscopic morphology, size, stacking and crystal structure of CNRs were characterized by field emission scanning electron microscopy (SEM), Raman spectroscopy (Raman) and X-ray diffraction (XRD). The influence of H2 in the growth process was investigated, and it was found that the introduction of H2 had a significant contribution to the shaping of the microscopic morphology. Further, nitrogen-doped carbon nanoribbons (N-CNRs-1 and N-CNRs-2) were prepared with ammonia and melamine as nitrogen sources, respectively.The results of electrochemical test showed that N-CNRs-2 had a better HER catalytic performance with an overpotential of 278 mV at a current density of 10 mA/cm2 in 1.0 M KOH solution and a larger electrochemical active surface area (35.25 cm2).