Abstract
We report in this paper the development of Boron-doped Graphene via chemical vapor deposition (CVD) that can serve as an efficient metal-free electrocatalyst for hydrogen evolution reaction (HER) in both alkaline and acidic media. Graphene growth is carried out by the flow of methane and hydrogen gasses, and with a borazine precursor over Ni foil and foam substrates at atmospheric pressure. The characterization is performed with scanning electron microscopy (SEM/EDS) and Raman/AFM spectroscopy. Electrochemical characterization of HER is performed by cyclic voltammetry (CV) measurements in 1 M KOH and 1M H2SO4 respectively, at room temperature, and 10 mV s–1 scan rate. Electrochemical tests are performed with an in-house designed cell with 1 cm2 surface area. The catalytic activity towards the HER of catalysts is determined from Tafel plots obtained from galvanostatic current-voltage measurements.
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