Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 12 (2019) 590–595 www.materialstoday.com/proceedings NCMD-2018 Spectroscopic Study of Large-Scale Synthesized, Nitrogen-doped carbon Nanotubes using Spray Pyrolysis Technique Nitin Dwivedi * , Divyanshi Srivastava * , Rajesh Kumar Shukla*, Anchal Srivastava ** *Department of Physics, University of Lucknow, Lucknow-226007, India **Department of Physics, Institute of Science, Banaras Hindu University, Varanasi-221005, India Abstract Highly pure and aligned nitrogen-doped carbon nanotubes were synthesized by catalytic spray pyrolysis technique at 850 o C using precursor; acetonitrile and ferrocene solution. Precursor solution with different concentrations of ferrocene in acetonitrile was introduced into the horizontally aligned reactor at a constant flow rate (~1ml/min) with Ar gas serving as the carrier (~50/500l/h). An optimum concentration of ferrocene in acetonitrile is 5mg/ ml. The structure of the synthesized N-CNTs was investigated by means of microscopic (SEM) as well as spectroscopic (FTIR, Raman, XRD, UV-Vis) techniques. The results show that the prepared N-doped CNTs have a uniform structure and high yield of N-CNTs is obtained. © 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the National Conference on Materials and Devices, NCMD-2018. Keywords: Nitrogen Doping CNTs, Spray Pyrolysis, FTIR, Raman, SEM, XRD, UV-Visible. 2214-7853© 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the National Conference on Materials and Devices, NCMD-2018.