PENGARUH VARIASI KUAT ARUS DAN WAKTU DARI METODE ELEKTROKOAGULASI TERHADAP KU…

Industri pembuatan tempe menghasilkan limbah cair yang jika langsung dibuang ke perairan dapat menurunkan daya dukung lingkungan. Suatu metode alternatif yang dapat digunakan untuk mengatasi permasalah limbah cair tempe ini adalah dengan menggunakan metode elektrokoagulasi. Penelitian ini dilakukan untuk menentukan pengaruh kuat arus dan waktu proses elektrokoagulasi terhadap kualitas limbah ca…

PENGEMBANGAN KATALIS KALIUM GLISEROLAT UNTUK PROSES PRODUKSI BIODISEL BERKELA…

PENGEMBANGAN KATALIS KALIUM GLISEROLAT UNTUK PROSES PRODUKSI BIODIESEL BERKELANJUTAN Karya tulis ilmiah berupa Tesis, Agustus 2023 Desi Erisna, Dibimbing oleh Dr. Ir. Hj. Susila Arita, DEA dan Dr.Fitri Hadiah,S,T.,M.T Development of potassium glycerolate catalyst for sustainable biodiesel production process xvii + 77 halaman, 3 Tabel, 17 Gambar, 4 Lampiran RINGKASAN Pengembangan katalis yang ra…

KINETIKA HIDROLISIS ENZIMATIK DARI SELULOSA SEKAM PADI YANG DIBERI PRAPERLAKU…

Rice husks contain cellulose as a raw material for manufacturing second-generation bioethanol. Cellulose from pre-treated rice husks was converted into reducing sugars through enzymatic hydrolysis using enzymes derived from Aspergillus niger. This study aims to determine the effect of variations in concentration, hydrolysis time and kinetics of enzymatic hydrolysis at enzyme concentrations of 1…

PENGARUH VARIASI BINDER, ELEKTROLIT DAN PEMAKAIAN EMULSI TERHADAP KINERJA BAT…

Lithium ion batteries are a type of secondary battery which means that they can be used many times if the power has started to run out by recharging, where this battery consists of four important components, namely the positive electrode (cathode), negative electrode (anode), electrolyte and separator. The use of anode material which is usually used in the manufacture of lithium ion batteries i…

UJI KINERJA DAN KETAHANAN MEMBRANE ELECTRODE ASSEMBLY DENGAN KATALIS PT-RU/C …

Abstract The research then was about performance and durability tests on the Membrane Electrode Assembly (MEA) using the catalyst of Pt-Ru/C and Pt/C for Direct Methanol Fuel Cell (DMFC) Mulitstack. Membrane Electrode Asssembly (MEA) was made by combining Pt-Ru/C and Pt/C with nafion membrane 117. MEA were characterized using Cyclic Voltammetry (CV) to determine the site active catalytic and th…

ELEKTRODEPOSISI KARBON BINCHOTAN DENGAN DISPERSI OKSIDA LOGAM VANADIUM MENJAD…

ABSTRACT ELECTRODEPOSITION OF CARBON BINCHOTAN WITH DISPERSION OF VANADIUM METAL OXIDE INTO CATALYST INK AND TEST IN PERFORMANCE ON THE MEMBRANE ELECTRODE ASSEMBLY DIRECTH METHANOL FUELL CELL M. Try Sandi; supervised by Dr. Nirwan Syarif, M.Si. Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University xvii + 60 pages, 4 tables, 14 pictures, 5 appendices The preparation and ch…

PREPARASI KARBON BERBAHAN DASAR KULIT TIMUN SURI DAN APLIKASINYA SEBAGAI ELEK…

SUMMARY Research has been conducted on the manufacture of carbon cucumber pulp and its application as an electrochemical double-layer electrode capacitor. This study aims to electrochemically predict carbon from cucumber pulp (DTS) with variations in the type of electrolyte concentration NaNO3 (sodium nitrate). Carbon DTS was made by the carbonization process for 16 hours and microwave dipiroly…

UJI KINERJA MEMBRANE ELECTRODE ASSEMBLY (MEA) PADA PROTON EXCHANGE MEMBRANE F…

The test on performance of Membrane Electrode Assembly (MEA) on Proton Exchange Membrane Fuel Cell (PEMFC) with Pt-Black/C and Pt/C catalyst has been done. The study was conducted by four MEA. The four MEA were characterized using the Cyclic Voltammetry (CV) method to calculate the value of Electrochemical Surface Area (ECSA) and Electrochemical Impedance Spectroscopy (EIS) to calculate the con…

DEHIDRASI ISOPROPANOL MENJADI DIISOPROPIL ETER DENGAN KATALIS ZEOLIT NIKEL FO…

The preparation of nickel phosphate impregnated zeolite catalyst has been carried out with various concentrations of Zeolite-Ni(H2PO4)2, namely 2, 4, 6, 8 and 10 mEq/g. The purpose of this study was to apply the Zeolite-Ni(H2PO4)2 catalyst during the dehydration of isopropanol to diisopropyl ether and to characterize the best synthesis using XRD, SEM-EDS, and FTIR. The performance of Zeolite-Ni…

UJI KINERJA SERTA KETAHANAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS …

The research about has been carried out on performance and durability tests on the Membrane Electrode Assembly (MEA) using 40% Pt-Co/C electrodes at the anode and 12.5% Pt/C electrodes at the cathode in PEMFC has been done. MEA consists of electrodes and electrolyte membrane in the form of Nafion 212 membrane. The electrodes are made by spraying catalyst layer onto the surface of the gas diffus…

STABILITAS KOMPOSIT HIDROKSI LAPIS GANDA Zn-Cr/SELULOSA PADA ADSORPSI BERULAN…

The synthesized of layered double hydroxide Zn-Cr and layered double hydroxide Zn-Cr/Cellulose composite by coprecipitation method were characterized by XRD, FT-IR and SEM-EDS analysis. The synthesized material was used as an adsorbent in the regeneration process and adsorption of malachite green dye with variations in pH, time, concentration and temperature. The regeneration of the adsorbent w…

PENGARUH LAJU ALIR DAN WAKTU OPERASI PADA KONVERSI KARBON DIOKSIDA MENJADI ME…

Penelitian pengaruh laju alir dan waktu operasi pada konversi gas karbon dioksida menjadi metanol dengan metode reduksi elektrokimia menggunakan elektroliser multi-stack telah dilakukan. Persentase produk metanol diukur menggunakan methanol analyzer melalui variasi laju alir dan waktu operasi dengan analisis perhitungan berupa efisiensi faraday. Waktu operasi diukur menggunakan dua jenis stack …

PENGARUH VARIASI WAKTU DAN KUAT ARUS PADA PENGOLAHAN PALM OIL MILL EFFLUENT (…

Palm Oil Mill Effluent (POME) merupakan limbah yang berbahaya apabila dialirkan tanpa diproses terlebih dahulu. Pengolahan POME pada penelitian ini menggunakan metode elektrokoagulasi yang kemudian dilanjutkan dengan proses filtrasi zeolit. Penelitian ini bertujuan untuk mengetahui pengaruh variasi waktu kontak dan kuat arus pada proses elektrokoagulasi dan filtrasi zeolit terhadap penurunan ka…

DEHIDRASI ISOPROPANOL MENJADI DIISOPROPIL ETER DENGAN MENGGUNAKAN KATALIS ZEO…

The use of alternative fuels is still developing and being researched. One of the alternative fuels is diisopropyl ether which has a high cetane number so that it is good for use as a fuel. Diisopropyl ether can be obtained through the dehydration process of isopropanol. Zeolite has a hollow structure so that it can increase the surface area and has a high ion exchange capacity. Zeolite surface…

PENGARUH SUHU ELEKTROLIT KHCO3 DAN WAKTU ELEKTROLISIS PADA KONVERSI CO2 MENJA…

The conversion of CO2 to methanol with temperature variations in KHCO3 electrolyte and electrolysis time using the electrochemical reduction method with MEA has been completed. The electrolyzer used in this study is a single and double stack electrolyzer. The concentration of the methanol product resulting from CO2 reduction was measured using a methanol analyzer for each variation. In temperat…

HIDROLISIS SELOBIOSA MENGGUNAKAN KATALIS ZIRKONIA TERSULFATASI DENGAN PROMOTO…

Research entitled hydrolysis of cellobiose using sulfated zirconia catalyst with a gallium oxide promoter has been carried out. Sulfated zirconia catalyst with a gallium oxide promoter was synthesized with various promoter content of 2% (GSZ-2), 5% (GSZ-5) and 10% (GSZ-10). The catalyst obtained was analyzed by XRD, GSA, SEM-EDS and solid acidity. Sulfated zirconia and sulfated zirconia with a …

PEMBUATAN DAN KARAKTERISASI ELEKTRODA DENGAN KATALIS Pt-Co/C SERTA UJI KINERJ…

The manufacture and characterization of electrodes with Pt-Co/C catalysts as well as performance tests of the Membrane Electrode Assembly (MEA) on the Proton Exchange Membrane Fuel Cell (PEMFC) have been carried out. Pt-Co/C catalyst was made with various mass variations of Pt to Co by impregnation method. Each Pt-Co/C catalyst with variation/mass ratio Pt:Co = 1:0; 0.75:0.25; 0.50:0.50; 0.25:0…

PREPARASI DAN UJI KETAHANAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS …

Membrane Electrode Assembly (MEA) resistance test with Pt-Ru/C catalysts on multi stack Direct Methanol Fuel Cell (DMFC) have been carried out. Manufacture of electrodes with Pt-Ru/C catalysts with the method of Spraying. The electrode are made and chactarized using Cyclic Voltametry (CV) to determine the catalytic activity of the electrode based on the value Electrochemical Surface Area (ECSA)…

PRODUKSI HIDROGEN DENGAN METODE ELEKTROLISIS AIR MENGGUNAKAN PEM ELEKTROLISER…

Hydrogen can be used as an energy carrier be converted into electrical energy using a fuel cell with a by product of water. In nature, there are a lot of abundance of hydrogen however the existence is not as a free atom but affiliated with other elements, one of which is water. One of the methods that used to produce hydrogen by using PEM water electrolysis. This study using PEM water electroly…

PENGARUH WAKTU MILLING DAN PENGGUNAAN PCA (PROCESS CONTROL AGENT) TERHADAP KA…

SUMMARY THE EFFECT OF MILLING TIME AND USE OF PCA (PROCESS CONTROL AGENT) ON CATALYST CHARACTERISTICS OF Cu2O-ZnO/C FOR MEA PRODUCTION Resti Wulandari: Supervised by Dr. Dedi Rohendi, M.T and Dr. Nirwan Sharif, M.Sc. Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University xii + 66 pages, 11 pictures, 8 appendices Research on the effect of milling and the use of PCA (process…

PENGARUH KONSENTRASI ELEKTROLIT KHCO3 PADA KONVERSI CO2 MENJADI METANOL MELAL…

Edition

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ISBN/ISSN

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Collation

xix, 36 hlm.; tab.; ilus.; 21 cm.

Series Title

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Call Number

T472742021

ISOLASI KARAKTERISASI DAN UJI AKTIVITAS ANTIOKSIDAN SENYAWA FLAVONOID DARI KU…

Isolation, characterization and antioxidant activity assay flavonoid compound from methanol extract of the stem bark gamboge {Garcinia xanthochymus) has been done. The extraction was done by maceration, separation and purification of isolated compound by chromatography technique. Antioxidant activity assay from isolation compound used DPPH (1,1 diphenylpycrii hidrazyl) method with variated conc…

UJI KINERJA ELEKTRODA FUEL CELL PADA PERALATAN ALKALINE FUEL CELL (AFC) YANG …

A research has been done about fuel cell electrode performance on alkaline fuel cell (AFC) device was produced by electrodeposition using Pt/C and Pt-Cr/C catalys. Then research began by designing and assembling equipment alkaline fuel cell (AFC) using acrylic glass. Electrode performance analysis of Pt/C and Pt-Cr/C was conducted on alkaline fuel cell device use electrolyte concentration 30%. …

UJI STABILITAS CAMPURAN PIGMEN ROSELLA, MANGGIS DAN SECANG SERTA KAJIAN KINET…

Studies have been conducted to determine the stability of combination of pigment derived from natural dyes Rosella (Hibiscus sabdariffa L.), the skin of the Mangosteen fruit (Garcinia mangostcma. L) and Secang wood (Caesalpenia Sappan L.). Propose of this study to determine the stability of the pigment combination of natural dyes storage time, addition of oxiditor, temperature and duration of h…

PENGARUH VARIASI JUMLAH METANOL DAN TEMPERATUR PEMANASAN TERHADAP KARAKTERIST…

It has been done the research about “The Effect of Methanol Amount and Heating Temperature to Biodiesel Properties from Ketapang Seed Oil (Terminalia Catappa Linn) Using NaOH Catalyst”. The purpose of research is to determine the optimum condition of making methyl ester with parameters include temperature variations (40, 50, 60, 70 °C) and methanol (10 : 90, 20 : 80, 30 : 70, 40 : 60, 50: …

PEMANFAATAN ECENG GONDOK (Eichhornia crassipes) DALAM PEMBUATAN ELEKTRODA KAR…

Study of utilization of water hyacinth (Eichhornia crassipes) in the fabrication of carbon electrode for electrochemical double layer capacitors (EDLC) has been done. Water hyacinth was carbonated using microwave oven. Pore characterization was conducted using iodine and methylene blue examination. Crystallography and morphology of carbon was characterized using XRD, FTIR, and SEM. The electroc…

PENGEMBANGAN ELEKTRODA KARBON KULIT BATANG KAYU GELAM (Melaleucu cajuputi Pow…

Telah dilakukan penelitian kapasitor lapis ganda elektrokimia dari karbon kulit batang kayu gelam. Tujuan dari penelitian ini membuat karbon berstruktur nano yang dapat dipakai untuk kapasitor lapis ganda elektrokimia dan membuat pelet elektroda serta menguji sifat elektrokimianya. Kulit batang kayu gelam dipirolisis selama 16 jam dan dipanaskan pada oven gelombang mikro pada suhu 700°C dengan…

PREPARASI BENTONIT TERPILAR AI203 DAN PENGARUH HNO3 TERHADAP DAYA ADSORPSINYA

Preparation of AI2O3 pillared bentonite and effect of HNO3 for adsorption by pillared bentonite has been done. Activated bentonite using H2SO4 0,5 M, 1 M, 1,5 M, and 2 M. Then it was continued with adsorbed ammonium in 4, 8, 16, and 24 hours. The optimum condition of adsorption of bentonite is 2 M and adsorption time 24 hours. Bentonite pillarization using aluminium poly-oxy-cation which was AI…

PENGEMBANGAN ELEKTRODA BERBASIS KARBON TABUNG NANO BARI JELAGA MINYAK WIJEN (…

Telah dilakukan penelitian pengembangan elektroda berbasis karbon tabungnano dari jelaga minyak wijen {Sesanum Indicum L) untuk kapasitor lapis ganda elektrokimia. Karbon tabungnano dipreparasi dari pirolisis gelombang mikro jelaga minyak wijen dengan atau tanpa perlakuan akhir secara hidrotermal. Hasil karakterisasi XRD, dan FTIR serta pengujian pori karbon dan sifat konduktivitas listrik menu…

PRODUKSI METANOL DARI CO2 SECARA REDUKSI ELEKTROKIMIA MENGGUNAKAN MEMBRANE EL…

The production of methanol from CO2 by electrochemical reduction using Membrane Electrode Assembly (MEA) has been carried out with a variation of catalyst loading 1; 1.5; 2 mg/cm2 and variations in mass ratio Cu2O : ZnO (1:1); (1:0.5); (0.5:1). Electrodes on the cathode side are used Cu2O-ZnO/C catalysts while on the anode side in the form of Pt/C. Electrodes are characterised using the Cyclic …