Nano-structured palladium impregnate graphitic carbon nitride composite for efficient hydrogen gas sensing

A. Ibrahim, U.B. Memon, S.P. Duttagupta, Ijjada Mahesh, R.K. Singh Raman, A. Sarkar, G. Pendharkar, S.S.V. Tatiparti

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

Nanoparticles of palladium (Pd) were incorporated into graphitic carbon nitride (g-C3N4) matrix with a view to improving hydrogen sensing efficiency of g-C3N4 , by a fairly new chemical process that uses ammonium tetrachloropalladate as a Pd metal nanoparticle source along with an appropriate reducing agent. Researchers have explored g-C3N4 for various applications such as a catalyst for water splitting, photoluminescence, storage because of its relatively low cost, easy synthesis, and ready availability. For the synthesis of g-C3N4, urea was used as a precursor at 550 °C and at atmospheric pressure under a muffle furnace without add-on support. The final solution of the Pd/g-C3N4 nanocomposite was then centrifuged and dried for use as a hydrogen-sensing material. g-C3N4 and Pd/g-C3N4 were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), UV-VIS-NIR spectroscopy, Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and energy dispersive X-ray spectroscopy (EDS). Pd-dispersed graphitic carbon nitride film was deposited on an inter digited carbon electrode by using a screen printing technique. From the qualitative analysis by I–V measurement, a significant change in the resistance was observed during the presence and absence of the hydrogen gas. The results show Pd/g-C3N4 nanocomposite as an efficient hydrogen sensing material.

Original languageEnglish
Pages (from-to)10623-10636
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume45
Issue number17
DOIs
Publication statusPublished - 27 Mar 2020

Keywords

  • Graphitic carbon nitride
  • Hydrogen gas sensor
  • Palladium nanoparticles
  • Screen printed hydrogen gas sensor

Cite this

Ibrahim, A., Memon, U. B., Duttagupta, S. P., Mahesh, I., Raman, R. K. S., Sarkar, A., Pendharkar, G., & Tatiparti, S. S. V. (2020). Nano-structured palladium impregnate graphitic carbon nitride composite for efficient hydrogen gas sensing. International Journal of Hydrogen Energy, 45(17), 10623-10636. https://doi.org/10.1016/j.ijhydene.2019.04.140