Exploring soft magnetism in amorphous carbon synthesized from biomass

Fahmi Astuti*, Vera Laviara Maghfirohtuzzoimah, Novita Sari, Deril Ristiani, Retno Asih, Malik Anjelh Baqiya, Takayuki Kawamata, Takashi Noji, Hidetaka Sato, Masatsune Kato, Dita Puspita Sari, Isao Watanabe, Darminto*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Some studies of the usage of biomass to produce carbon-based compounds have been reported in the past. Here we report that palmyra sugar can be one of the sources to produce amorphous carbon (a-C) from biomass after the heating treatment at 250oC. In this paper, X-Ray Diffraction (XRD), Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX), Fourier Transform Infrared (FTIR) and Superconducting Quantum Interference Device (SQUID) measurements are reported in order to check the detailed properties of a-C from palmyra sugar. The XRD data at a diffraction peak position (2θ) of ~23o support the formation of a-C. The functional groups detected by FTIR spectra consist of C=C, C-C, C-O, C=O, C-H and O-H. The remnant magnetization (Mr), coercive field (Hc) and saturation magnetization are estimated as ~0.1 × 10-3 emu/g, ~50 Oe and ~9×10-3 emu/g, respectively. Soft ferromagnetism in a-C from palmyra sugar is confirmed, comparable with the magnetization result in the reduced graphene oxide (rGO) sample from coconut shell and rGO commercial material which have the same mixture hybridization.

Original languageEnglish
Title of host publicationMagnetism and its Application
EditorsBudi Purnama, Darminto, Risdiana
PublisherTrans Tech Publications Ltd
Number of pages6
ISBN (Print)9783035717044
Publication statusPublished - 2020
EventInternational Conference on Magnetism and Its Application, ICMIA 2019 - Surakarta, Indonesia
Duration: 20 Nov 201921 Nov 2019

Publication series

NameKey Engineering Materials
Volume855 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


ConferenceInternational Conference on Magnetism and Its Application, ICMIA 2019


  • Biomass
  • Carbon compounds
  • Magnetization
  • Palmyra sugar


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