Kinetic study of boron doped carbon nanotubes synthesized using chemical vapour deposition

•Boron doped carbon nanotubes synthesized using solid boron source, boric acid, with boron doping between 6 and 7 atom percent.•Existence of two different reaction mechanisms in different range of temperatures.•Reaction kinetics were studied and a kinetic model was proposed for validating the experimental results.•The temperature at 750 °C helps in synthesizing carbon nanochains with absence of carbon nanotubes.