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All Journal JKPK (Jurnal Kimia dan Pendidikan Kimia) Stannum : Jurnal Sains dan Terapan Kimia
Cornelius Satria Yudha
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Synthesis and Characterization of Material LiNi0.8Co0.15Al0.05O2 Using One-Step Co-Precipitation Method for Li-Ion Batteries Cornelius Satria Yudha; Luthfi Mufidatul Hasanah; Soraya Ulfa Muzayanha; Hendri Widiyandari; Agus Purwanto
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 4, No 3 (2019): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1062.495 KB) | DOI: 10.20961/jkpk.v4i3.29850

Abstract

Li-ion battery is an energy storage device which could be applied as power source for electronic devices. The capacity of a battery is determined by the cathode material. Over this last decade, high nickel content cathode material is applied for electric vehicular technology. This study aims to synthesize a nickel-rich cathode material, LiNi0.8Co0.15Al0.05O2 (NCA) via one-step co-precipitation and study its characteristics. The Ni, Co and Al metal ion conversion during co-precipitation were analyzed using Atomic Adsorption Spectroscopy (AAS). Based on X-Ray diffraction analysis, NCA sample exhibited hexagonal-layered structure with high crystallinity. Based on Scherrer equation, the mean crystallite diameter of NCA sample is 40 nm. Scanning electron microscope (SEM) showed micron-sized homogenous particles with smooth surface. The final composition of Ni, Co and Al metal were confirmed using XRF. The capacity of the battery was determined using galvanostic test method with voltage range of 2.7-4.25 V using graphite as the counter anode. The initial specific discharge capacity of NCA is 60 mAh/g while the capacity loss per cycle is 1%.
Utilization of Iron (Stainless Steel) Waste for Making Prussian Blue Pigment Esa Nur Shohih; Cornelius Satria Yudha; Himmah Sekar Eka Ayu Gustiana; Dian Rama Pradifta; Ilmi Utari Simatupang; Kristina Dewi Maharani; Muftiyasfu Tahshilus Sa’adah
Stannum : Jurnal Sains dan Terapan Kimia Vol 6 No 2 (2024): October 2024
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v6i2.4862

Abstract

The increasing use of household materials made of stainless steel also causes more metal waste to be produced. Stainless waste is considered dangerous because it contains several heavy metal compounds such as Ci, Pb, Ni, Fe, and others, so it is necessary to treat stainless waste. Stainless slag and stainless dust can be processed into products with high selling value such as pigments or dyes. In this research, Prussian Blue pigment was synthesized from Fe waste obtained from iron fiber waste. Apart from knowing the yield of the Prussian Blue synthesis, the effect of adding TiO2 on the intensity of the resulting color was observed. This study used a hydrometallurgical method using acid leaching to produce Prussian blue color pigments. The Prussian blue pigment conversion value produced in experiment 1 was 79.63%, experiment 2 was 80.36%, experiment 3 was 83.63%, and experiment 4 was 82.40%. The yield value of Prussian blue pigment in experiment 1 was 1.230 gram Prussian blue/gram iron, experiment 2 was 1.142 gram Prussian blue/gram iron, experiment 3 was 1.305 gram prussian blue/gram iron, and experiment 4 was 1.807 gram prussian blue/gram iron. Overall this method can process waste iron (stainless steel) into Prussian blue color pigment.
Co-Authors Dian Rama Pradifta Esa Nur Shohih Hendri Widiyandari Himmah Sekar Eka Ayu Gustiana Ilmi Utari Simatupang Kristina Dewi Maharani Luthfi Mufidatul Hasanah Muftiyasfu Tahshilus Sa’adah Purwanto, Agus Soraya Ulfa Muzayanha