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Contact Name
Aditya Rianjanu
Contact Email
aditya.rianjanu@mt.itera.ac.id
Phone
+6282182427752
Journal Mail Official
tarmizi.taher@tl.itera.ac.id
Editorial Address
OZT Building, Sumatera Institut of Technology, Indonesia
Location
Unknown,
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INDONESIA
Greensusmater
ISSN : -     EISSN : 3047910X     DOI : https://doi.org/10.62755/
Greensusmater is a premier, gold open access peer-reviewed academic journal dedicated to advancing knowledge and understanding of green and sustainable materials science and technology. Our aim is to serve as a global platform for researchers, industry professionals, policymakers, and anyone interested in development of green and sustainable materials, to share their insights, discuss theories, and promote environmentally-responsible practices in materials science. We also aim to inspire collaboration, stimulate new ideas, and facilitate the practical application of research findings towards a greener and more sustainable world. In its first inaugural year, Greensusmater will publish two issues within a single volume, with releases in February and July, establishing a biannual publication rhythm.
Articles 21 Documents
Niobium oxide electrode performance boosted by molybdenum doping and calcination for supercapacitor applications Al Mubarok, Muhammad Ramadhan; Nurfitria, Rima; Aflaha, Rizky; Nurfani, Eka; Rianjanu, Aditya
Greensusmater Vol. 2 No. 2 (2025)
Publisher : Green and Sustainable Materials Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62755/greensusmater.2025.2.2.62-69

Abstract

Niobium pentoxide (Nb2O5) is a promising pseudocapacitive material for supercapacitor applications due to its high theoretical capacitance and electrochemical stability. However, its practical performance is limited by low electrical conductivity and poor ion transport kinetics. In this work, we report the enhancement of Nb2O5 electrode performance through molybdenum (Mo) doping and thermal calcination. Mo-doped Nb2O5 nanostructures were synthesized via a hydrothermal method followed by calcination at 500 °C. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) confirmed a rougher morphology and homogeneous Mo distribution in the doped sample. X-ray diffraction (XRD) revealed a structural transformation from a deformed orthorhombic phase in pristine Nb2O5 to a more crystalline pseudohexagonal phase in Mo-Nb2O5-500. Electrochemical analysis demonstrated a significant improvement in capacitive behavior, with Mo-Nb2O5-500 achieving a specific capacitance of 55.3 F/g at 5 mV/s, which is five times higher than the undoped sample. All electrodes exhibited stable cycling performance. These results highlight the synergistic role of Mo doping and calcination in enhancing the electrochemical properties of Nb2O5, offering a viable approach for developing high-performance pseudocapacitor electrodes.

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