N-doped carbon materials produced by CVD with the compounds derived from LDHs

Abstract Layered double hydroxides (LDHs) of various compositions, i.e. Mg–Al, Mg–Mn–Al, are applied as the precursors metal oxides for preparation N-doped carbon materials via chemical vapour deposition (CVD) with acetonitrile (as and nitrogen source) at 600 700 °C. The use Mn-containing LDHs is a novelty. impact transition species, Mn x O y , in blend derived from on amount deposit its composition, morphology, textural capacitive properties investigated. species occurring mixture enhance quantity carbonaceous product compared to those Mg–Al LDHs. Thermally heated Mg–Mn–Al contain structural defects due manganese oxides, which promote formation deposit, especially higher production amorphous carbons. addition into matrix leads particles increased N-doping enhanced volume mesopores. Furthermore, graphitic domains obtained thicker than corresponding samples influence concentration location N-containing groups array. specific capacitance produced by CVD compounds or comparable (20–25 μF cm −2 ). electrical layer electrode/electrolyte interface easier prepared °C maximum charge stored either shallow parts former, they bottleneck mesopores, deep latter, slit-shaped Graphical abstract