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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Ilmu Lingkungan Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Sains Matematika dan Statistika JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Communications in Science and Technology INTECOMS: Journal of Information Technology and Computer Science Matrik : Jurnal Manajemen dan Teknik Industri Produksi Jurnal Perangkat Lunak Jurnal Surya Teknika Journal of Applied Materials and Technology IJIMCE : International Journal of Innovation in Mechanical Construction and Energy
Rika Taslim
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Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics

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Journal : Communications in Science and Technology

 1 
Three-dimensional pore structure of activated carbon monolithic derived from hierarchically bamboo stem for supercapacitor application Taer, Erman; Pratiwi, Lini; Apriwandi, Apriwandi; Mustika, Widya Sinta; Taslim, Rika; Agustino, Agustino
Communications in Science and Technology Vol 5 No 1 (2020)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1000.712 KB) | DOI: 10.21924/cst.5.1.2020.180

Abstract

A three-dimensional pore structure on activated carbon derived from hierarchically bamboo stem was synthesized in the monolithic form for increased applicability as a supercapacitor electrode. The preparation involved two step carbonizations, using a chemical activation at different concentrations. Subsequently, the morphology, chemical content, specific surface area and pore size distribution, as well as crystalline degree were evaluated with scanning electron microscopy, energy X-ray (EDX), N2 sorption and X-ray diffraction, respectively. Therefore, cyclic voltammetry (CV) was used to assess the electrochemical performance, in a two electrode system. The result shows the significant impact of the three-dimensional structure on electrochemical performance, and the optimized sample exhibited specific capacitance of 168.8 F g-1, energy density of 23.44 Wh kg-1, and power density of 84.46 W kg-1.
Nanofiber-enrich activated carbon coin derived from tofu dregs as electrode materials for supercapacitor Taer, Erman; Apriwandi; Hasanah, Fainida; Taslim, Rika
Communications in Science and Technology Vol 6 No 1 (2021)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.6.1.2021.407

Abstract

In this study, the activated carbon with enriched nanofiber obtained from free-binder materials. It was conducted tofu dregs carbon nanofiber as electrode material for supercapacitor without the addition of pVdF/PTFE. The chemical impregnation of NaOH, ZnCl2 and H3PO4 at high-temperature pyrolysis in an N2-CO2 environment converted the tofu dregs into carbon coin. Subsequently, the physical properties including, microcrystalline, morphology, element analysis, and electrochemical properties of specific capacitance were investigated. The morphological structure of activated carbon showed high nanofiber density and was decorated by sponge-like pores. In addition, the nanofiber contains oxygen content of 12.70% which can act as self-doping due to the pseudo-capacitance properties. Furthermore, the two-electrode system obtained a specific capacitance of 163 F g-1 in 1 M H2SO4 electrolyte. The results showed that tofu dregs-based activated carbon coins are sustainable and efficient to obtain high-dense nanofiber structure as electrode materials for energy storage applications.
Novel colored biomass-waste from food industry sector derived hierarchical porous carbon nanofiber for robust symmetric supercapacitor Nursyaputri, Wan Mery; Fairuzy, Zeeva Khalilah; Khumairah, Zahra; Yanti, Novi; Nursyafni, Nursyafni; Apriwandi, Apriwandi; Taslim, Rika; Taer, Erman
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1534

Abstract

A major challenge in the use of supercapacitor energy storage applications is optimizing 3D-hierarchical porous and 2D nanofiber structures to improve the electrochemical performance of colored biomass-derived activated carbon (AC). Therefore, this study aims to synthesize AC from Dracaena Angustifolia (DA) leaves and dregs using a sustainable method through chemical activation and high-temperature pyrolysis. AC was designed to be adhesive-free to maintain the true mechanical properties of the precursor. Research results showed that the sample of DA-dregs-KOH shows optimal results with a specific surface area (317.66 m2 g-1). The electrochemical performance of hierarchical porous carbon treated with 1 M H2SO4 electrolyte in a 2-electrode system had a nanofiber structure with the highest specific capacitance (248 F g-1) at 1 A g-1 and energy density (12.96 Wh kg-1) with a coulomb efficiency 84.1%. Based on these results, DA dreg-KOH based porous AC with hierarchical porous morphology shows significant potential to be used as binder-free electrode materials that can produce high-performance supercapacitors as a new renewable and sustainable energy storage solution.
Co-Authors Achmad Noerkhaerin Putra Agustino Agustino, Agustino Ahmad Fudholi Andhen Sury, Nyvia Andika Afrianda ANDRINI, ROZI april, Muhammad Dhany Aprilia Pratama Apriwandi Apriwandi . Awaludin Martin Budi Azwar Chitraningrum, Nidya Deniza, Rindhu Nabila Erman Taer Fadli Perdana Yuda Fairuzy, Zeeva Khalilah Fitri Aryani Gunawan, Resky HAMDALAH, AHMAD Hamdy, Muhammad Ihsan Hardanto, Lilik Tri Harpito Harpito, Harpito Hartati , Misra Hasanah, Fainida Ihsan Hamdy, Muhammad Iwantono Iwan Barnawi Juandi Juandi Juli Andry Julnaidi, Julnaidi Khumairah, Zahra Kresna, Pharada Lestari, Fitra Lubis, Fitriani Surayya Lutfi Rindang Lestari Mayuta, Fadhila Putra Melda Riyani Butet Misra Hartati Muhammad Ihsan Hamdy Muhammad Isnaini Hadiyyul Umam Muhammad Nasir Muhammad Nur Muhammad Nur Mustika, Widya Sinta N. Nazaruddin Nazaruddin Nofirza Nofirza Novi Yanti Nursyafni, Nursyafni Nursyaputri, Wan Mery Okti, Okti Wardani Pratiwi, Lini Purba, Cenora Evelynza Putri, Rahma Lia Rahmi Dewi Rakhmawati Farma Satrio, Tedy Suherman Suraya Lubis, Fitriani Surayya Lubis , Fitriani Surayya Lubis, Fitriani Wetya Fatma Kumala Sari