Article Per Year (5 Year)
p-Index From 2021 - 2026
1.829
P-Index
This Author published in this journals
All Journal KOVALEN: Jurnal Riset Kimia JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jurnal Pengelolaan Laboratorium Pendidikan FLUIDA Fullerene Journal of Chemistry Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Jurnal Teknik Kimia dan Lingkungan
Andrijanto, Eko
Politeknik Negeri Bandung
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering

Published : 10 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : FLUIDA

 1 
Sintesis dan Karakterisasi Lithium Iron Phosphate (LiFePO4) Menggunakan Metoda Solid State Reaction Sebagai Katoda Pada baterai Lithium-Ion Oki Putra; Rusdan Fadila; Eko Andrijanto; Dian Ratna Suminar
Fluida Vol 14 No 2 (2021): FLUIDA
Publisher : Jurusan Teknik Kimia, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v14i2.2632

Abstract

ABSTRAK Perkembangan baterai tak luput dari kebutuhan energi yang kian meningkat. Meskipun sumber energi tidak terpaku pada baterai, namun baterai banyak diminati karena dapat menampung cukup banyak energi, relatif aman, dan bersifat portable. Penelitian ini bertujuan untuk mensintesa dan mengetahui karakteristik salah satu jenis katoda baterai lithium-ion yaitu Lithium Iron Phosphate (LiFePO4) dengan variasi mol reagent berdasarkan perbandingan stoikiometri dan suhu proses kalsinasi 600°C, 700°C, dan 800°C selama 3x3 jam menggunakan metode solid state reaction dengan Li2SO4.H2O, FeSO4.7H2O, dan KH2PO4 sebagai reagent. Produk hasil kalsinasi 800°C dengan variasi 0.1 mol dijadikan sampel untuk dianalisa dan dikarakterisasi karena memiliki penurunan berat endapan BaSO4 tertinggi. Hasil karakterisasi menggunakan FTIR menunjukan gugus fungsi P-O yang cukup kuat, sementara hasil karakterisasi menggunakan SEM/EDX menunjukan partikel yang terbentuk memiliki ukuran sekitar 160nm hingga 14µm dan terdapat atom S yang merupakan impurities dalam produk. Pola difraksi hasil uji XRD menunjukan terbentuknya sejumlah fasa seperti LiFePO4, LiFeP2O7, dan Li3PO4. ABSTRACT The development of batteries is inseparable from the increasing energy needs. Although energy sources are not available for batteries, batteries are in great demand because they can store a lot of energy, are relatively safe, and are portable. This study aims to synthesize and determine the characteristics of one type of lithium-ion battery cathode, namely Lithium Iron Phosphate (LiFePO4) with various mole reagents based on stoichiometric ratios and calcination process temperatures of 600oC, 700oC, and 800oC for 3x3 hours using the solidstate reaction method with Li2SO4.H2O, FeSO4.7H2O, and KH2PO4 as reagents. The 800oC calcined product with 0.1 mol variation was sampled for analysis and characterization because it had the highest weight loss of BaSO4 deposits. The results of characterization using FTIR showed that the functional group P-O are quite strong, while the results of characterization using SEM/EDX showed that the particles formed had a size of about 160nm to 14µm and contained S atoms which were impurities in the product. The diffraction pattern of XRD test results shows the formation of phase numbers such as LiFePO4, LiFeP2O7, dan Li3PO4.
Optimasi Suhu Reaksi Sintesis Senyawa LiFePO4 Menggunakan Prekursor Lithium Sulfat Sebagai Sumber Ion Lithium Rispiandi; Eko Andrijanto
Fluida Vol 15 No 1 (2022): FLUIDA
Publisher : Jurusan Teknik Kimia, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v15i1.3700

Abstract

ABSTRAK Dengan meningkatnya kebutuhan akan konsumsi energi, maka semakin meningkat pula kebutuhan akan peralatan untuk mengkonversi energi dan menyimpannya, seperti baterai lithium. Lithium-ion batteries (LIBs) menjadi salah satu alat yang paling mendapat perhatian karena dianggap memiliki densitas energi yang tinggi. Senyawa LiFePO4 (LIPO) mulai dilirik sebagai alternatif yang paling cocok menggantikan LiCoO2 sebagai katoda pada baterai lihium karena memiliki stabilitas termal yang tinggi. Pada penelitian ini, dipelajari pengaruh kondisi reaksi sintesis LiFePO4 menggunakan metode solid state reaction yang dioptimasi dengan memvariasikan suhu kalsinasi. Bahan baku yang digunakan adalah Li2SO4. H2O , FeSO4. 4H2O dan NH4PO4 dengan ratio molar 1:1:0,5. Sintesis dengan metode solid state reaction ini dilakukan dengan memvariasikan suhu kalsinasi 600o, 650o dan 700 oC selama 5 jam untuk membentuk fase kristalin LiFePO4. Difraktogram LiFePO4 hasil sintesis dibandingkan dengan difraktogram standar LiFePO4 - JCPDS 40-1499. Ketiga variasi suhu ini menghasilkan difraktogram yang sangat identik dengan standar LiFePO4, namun demikian pada suhu 700 oC dianggap menjadi kondisi yang optimum untuk menghasilkan LiFePO4 dengan tingkat kemiripan yang lebih baik dengan LiFePO4 rujukan atau standar. Li2SO4 adapat dijadikan precursor sumber lithium dalam sintesis material LiFePO4. ABSTRACT The increasing for energy consumption, the need for electrical devices to convert energy and store it also increases, such as lithium ion battery. Lithium-ion batteries (LIBs) have received the wide attention because they are considered to have high energy density. LiFePO4 (LIPO) compounds are starting to be regarded as the most suitable alternative to replace LiCoO2 as a cathode in lithium ion batteries because it has high thermal stability. In this study, the reaction conditions for the synthesis of LiFePO4 utilized the solid state reaction method which was optimized by varying the calcination temperature was examined. The raw material used in this synthesis is Li2SO4. H2O, FeSO4. 4H2O and NH4PO4 with a molar ratio of 1:1:0.5. The synthesis method was carried out at high temperature calcination of 600o, 650o and 700oC for 10 hours to form a crystalline LiFePO4 phase. The synthesized LiFePO4 diffractogram was compared with the diffractogram standard of LiFePO4 - JCPDS 40-1499. These three temperature variations resulted in diffractogram that was very identical to the standard LiFePO4, however at 700oC it was considered to be the optimum condition to produce LiFePO4 with a better similarity to the reference LiFePO4. The Li2SO4 can be utilized as a precursor of ion sources in the synthesis of cathode material LiFePO4.
Optimasi Suhu Reaksi Sintesis Senyawa LiFePO4 Menggunakan Prekursor Lithium Sulfat Sebagai Sumber Ion Lithium Rispiandi Rispiandi; Eko Andrijanto
Fluida Vol 15 No 1 (2022): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v15i1.3700

Abstract

ABSTRAK Dengan meningkatnya kebutuhan akan konsumsi energi, maka semakin meningkat pula kebutuhan akan peralatan untuk mengkonversi energi dan menyimpannya, seperti baterai lithium. Lithium-ion batteries (LIBs) menjadi salah satu alat yang paling mendapat perhatian karena dianggap memiliki densitas energi yang tinggi. Senyawa LiFePO4 (LIPO) mulai dilirik sebagai alternatif yang paling cocok menggantikan LiCoO2 sebagai katoda pada baterai lihium karena memiliki stabilitas termal yang tinggi. Pada penelitian ini, dipelajari pengaruh kondisi reaksi sintesis LiFePO4 menggunakan metode solid state reaction yang dioptimasi dengan memvariasikan suhu kalsinasi. Bahan baku yang digunakan adalah Li2SO4. H2O , FeSO4. 4H2O dan NH4PO4 dengan ratio molar 1:1:0,5. Sintesis dengan metode solid state reaction ini dilakukan dengan memvariasikan suhu kalsinasi 600o, 650o dan 700 oC selama 5 jam untuk membentuk fase kristalin LiFePO4. Difraktogram LiFePO4 hasil sintesis dibandingkan dengan difraktogram standar LiFePO4 - JCPDS 40-1499. Ketiga variasi suhu ini menghasilkan difraktogram yang sangat identik dengan standar LiFePO4, namun demikian pada suhu 700 oC dianggap menjadi kondisi yang optimum untuk menghasilkan LiFePO4 dengan tingkat kemiripan yang lebih baik dengan LiFePO4 rujukan atau standar. Li2SO4 adapat dijadikan precursor sumber lithium dalam sintesis material LiFePO4. ABSTRACT The increasing for energy consumption, the need for electrical devices to convert energy and store it also increases, such as lithium ion battery. Lithium-ion batteries (LIBs) have received the wide attention because they are considered to have high energy density. LiFePO4 (LIPO) compounds are starting to be regarded as the most suitable alternative to replace LiCoO2 as a cathode in lithium ion batteries because it has high thermal stability. In this study, the reaction conditions for the synthesis of LiFePO4 utilized the solid state reaction method which was optimized by varying the calcination temperature was examined. The raw material used in this synthesis is Li2SO4. H2O, FeSO4. 4H2O and NH4PO4 with a molar ratio of 1:1:0.5. The synthesis method was carried out at high temperature calcination of 600o, 650o and 700oC for 10 hours to form a crystalline LiFePO4 phase. The synthesized LiFePO4 diffractogram was compared with the diffractogram standard of LiFePO4 - JCPDS 40-1499. These three temperature variations resulted in diffractogram that was very identical to the standard LiFePO4, however at 700oC it was considered to be the optimum condition to produce LiFePO4 with a better similarity to the reference LiFePO4. The Li2SO4 can be utilized as a precursor of ion sources in the synthesis of cathode material LiFePO4.
Efektivitas Katalis Heterogen Fly Ash (FA-SO3H) pada Sintesis Biodiesel dari Palm Fatty Acid Distillate Abdulloh, Sudrajat Harris; Andrijanto, Eko; Saripudin, Saripudin; Putri, Anindya Indrita; Nurul, Dhea; Elizabeth, Lidya
Fluida Vol. 17 No. 1 (2024): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v17i1.5286

Abstract

The increase in fuel use along with the decline in production of petroleum exploration activities encourages efforts to find alternative fuels, one of which is biodiesel from PFAD (Palm Fatty Acid Distillate) with production reaching 6,000,000 tons while its utilization is still low. Biodiesel production from PFAD using Fly ash (FA)-SO3H catalyst which is a heterogeneous catalyst through esterification method. FA used in this study was wet impregnated using 6M sulfuric acid (H2SO4) for 24 hours, so that the highest acid concentration was obtained at a calcination temperature of 500 ⁰C of 1.1654 mmol/gram. The research was conducted with Response Surface Method (RSM) with Box Behnken Design model in Design Expert 13 software and 13 runs were obtained. The resulting model from RSM was obtained as optimum conditions at catalyst loading (%-w) 5-10, methanol:PFAD molar ratio (n/n) 10:1-30:1, reaction time 3-5 hours and temperature 60 ⁰C. Based on the experimental results and ANOVA, the high conversion is influenced by the high catalyst loading and methanol:PFAD ratio (n/n), with the conversion obtained of 72.89% at catalyst loading of 10%-w, methanol:PFAD molar ratio of 20 (n/n) and time for 5 hours.
Co-Authors Alfiana Adhitasari Amanda, Nanda Ravenia Bevi Lidya Elizabeth, Lidya Nanda Nabila Nurul, Dhea Oki Putra Paramitha, Tifa Putri, Anindya Indrita Raihan Nurfauziah Rispiandi Rispiandi Rusdan Fadila Sabinna Azahra Sulaeman Saripudin Saripudin Setyaningrum, Sinta Shafira Yulianthina Sudrajat Harris Abdulloh Suminar, Dian Ratna Suryadi, Joko Syafa Neiska Bayhaqi Zulfa Rahmah Fadillah