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Royal Society of Chemistry (RSC) Nanoscale Advances 6(6)
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    초록·키워드

    The <i>in situ</i> growth of N-doped multi-walled carbon nanotubes (N-MWCNTs) from the products of graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) etching by Ni nanoparticles in a hydrogen atmosphere has been confirmed for the first time. During the etching process of g-C<sub>3</sub>N<sub>4</sub>, the building blocks, notably methane, ammonia, and hydrogen cyanide, are formed. The formation of N-MWCNTs was confirmed by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning (SEM) and transmission electron microscopy (TEM). A sponge-like carbonaceous structure was obtained with a specific surface area of 384 m<sup>2</sup> g<sup>-1</sup> from initial g-C<sub>3</sub>N<sub>4</sub> (32 m<sup>2</sup> g<sup>-1</sup>).

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