STUDY THE ELECTRICAL PROPERTIES OF GRAPHENE OXIDE – NANOCELLULOSE COMPOSITE

ГРАФЕН ОКСИДІНІҢ – НАНОЦЕЛЛЮЛОЗА КОМПОЗИЦИЯСЫНЫҢ ЭЛЕКТРЛІК ҚАСИЕТТЕРІН ЗЕРТТЕУ
ИЗУЧЕНИЕ ЭЛЕКТРИЧЕСКИХ СВОЙСТВ КОМПОЗИТА ОКСИД ГРАФЕНА – НАНОЦЕЛЛЮЛОЗА
Aimaganbetov K. Abdrakhmanov K. Akatan K. Kuanyshbekov T. Almas N. Kurbanova B. Kemelbekova A. Tatishvili G.
2024 Kazakh-British Technical University

Herald of the Kazakh British Technical UNiversity
2024 #21 Issue 3 236 - 247 pp.

This study investigates the electrical properties of a graphene oxide (GO) and nanocellulose (NC) composite using impedance spectroscopy, complemented by thorough characterization through Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and scanning electron microscopy (SEM). FTIR analysis revealed characteristic peaks corresponding to functional groups present in both GO and NC, providing insights into their chemical composition. XPS spectra exhibited distinctive peaks indicative of carbon and oxygen bonding states, elucidating the surface chemistry of the materials. Raman spectroscopy provided information on the structural order and defects within the samples, particularly highlighting the graphitic structure of GO. SEM images revealed the morphological features of the composite membrane, showcasing the distribution of NC particles and structural modifications induced by their incorporation. Impedance spectroscopy was utilized to investigate the electrical conductivity of the GO-NC composite. Results indicated a temperature-dependent behavior, with an increase in conductance observed as the temperature rose within the operational range of fuel cells. Remarkably, the addition of NC did not significantly alter the conductive behavior of the composite, suggesting compatibility and stability. In summary, this comprehensive characterization using multiple analytical techniques offers valuable insights into the electrical properties of the GO-NC composite. The findings suggest its potential for various applications requiring enhanced electrical conductivity, particularly in fuel cell technology.

Composite , Graphene Oxide , Impedance Spectroscopy , Membrane Electrode Assembly , Nanocellulose , Proton Exchange Membrane

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Institute of Hydrogen Energy, International Science Complex Astana, Astana, 010000, Kazakhstan
Higher School of Natural Sciences, Astana International University, Astana, 010000, Kazakhstan
Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, 070000, Kazakhstan
Satbayev University, The Institute of Physics and Technology, Almaty, 050000, Kazakhstan
Tbilisi State University (IICE of TSU), Tbilisi, 0186, Georgia

Institute of Hydrogen Energy
Higher School of Natural Sciences
Sarsen Amanzholov East Kazakhstan University
Satbayev University
Tbilisi State University (IICE of TSU)

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