scholarly journals PEMANFAATAN KARBON AKTIF DARI BAMBU SEBAGAI ELEKTRODA SUPERKAPASITOR

2017 ◽  
Vol 17 (1) ◽  
pp. 73
Author(s):  
Farly Tumimomor ◽  
Akhiruddin Maddu ◽  
Gustan Pari
Keyword(s):  
Cyclic Voltammetry ◽  
Activated Carbon ◽  
Electrode Materials ◽  
Current Collector ◽  
Storage Device ◽  
Test Results ◽  
Supercapacitor Electrode ◽  
Capacitance Curve ◽  
Measured Absorption ◽  
Cyclic Voltammetry Method

PEMANFAATAN KARBON AKTIF DARI BAMBU SEBAGAI ELEKTRODA SUPERKAPASITOR ABSTRAKPada penelitian ini, karbon aktif berbasis bambu telah digunakan untuk pembuatan superkapasitor. Uji daya jerap iodin dilakukan untuk mengukur tingkat serapan pori sampel karbon aktif yang ukurannya relatif kecil (mikropori). Karakteristik bahan karbon aktif yang meliputi struktur kristal dan morfologi permukaannya diuji dengan menggunakan SEM dan XRD. Bahan elektroda dengan komposisi (Karbon aktif : PVDF = 9:1 (b/b)), kolektor arus dan separator telah dirangkai untuk diuji kinerjanya sebagai perangkat penyimpanan muatan listrik. Metode siklik voltametri digunakan untuk melihat kinerja perangkat superkapasitor dengan mengukur nilai kapasitansi spesifik berdasarkan kurva voltammogram. Berdasarkan hasil perhitungan nilai kapasitansi spesifik diperoleh nilai kapasitansi spesifik tertinggi pada superkapasitor dengan elektroda bambu yang diaktivasi dengan steam 50 mL/bar yaitu sebesar  59.50 F.Kata kunci: Karbon aktif bambu, siklik voltametri, kapasitansi spesifik, superkapasitor.  UTILIZATION OF BAMBOO BASED ACTIVATED CARBON AS SUPERCAPACITOR ELECTRODE ABSTRACT In this study, bamboo based activated carbon has been used for fabrication of supercapacitors. Iodine absorption test is performed to measured absorption level porous activated carbon sample size is relatively small (microporous). Characteristics of the activated carbon material covering the surface morphology and structure were tested using SEM and XRD. Electrode materials with composition (Activated charcoal: PVDF = 9: 1 (w / w)), the current collector and separator has been assembled to be tested its performance as an electrical charge storage device. The test results by cyclic voltammetry method was to look at the performance supercapacitor devices at once to obtain the value of the capacitance curve obtained voltammograms. Based on the results of the calculation of the capacitance, the highest capacitance values obtained in the supercapacitor with activated carbon electrodes in bamboo steam 50 mL / bar with a capacitance value is 59.50 F / g.Keywords: Bamboo activated carbon, cyclic voltammetry, the specific capacitance, supercapacitor.

Development of Statistical Model for Selection of Electrode Parameters in Manufacturing of Ultracapacitor

2020 ◽  
Vol 862 ◽  
pp. 22-27
Author(s):  
Laxman S. Godse ◽  
M.J. Bhalerao ◽  
Faiz M. Khwaja ◽  
Neelima R. Kulkarni ◽  
Parshuram B. Karandikar
Keyword(s):  
Specific Capacitance ◽  
Electrode Material ◽  
Small Volume ◽  
Electrode Materials ◽  
Research Work ◽  
Current Collector ◽  
Electrical Energy ◽  
Storage Device ◽  
Current Energy ◽  
Selection Of

Ultracapacitor is a new electrical energy storage device which has high power density than conventional battery and capacitor. It offers high capacitance in small volume compared to conventional capacitors. While selecting ultracapacitors for various applications, parameters like specific resistance, internal capacitance, pulse current, energy density are required to be considered. Amongst these factors, specific capacitance of ultracapacitor depends mainly on parameters of electrode. The present paper is focused on modeling of ultracapacitor based on variations in some of the electrode parameters. The objective of present research work is to apply a statistical method to obtain an electrode material based model for prismatic type ultracapacitor. To have deep insight about the performance through modeling approach, the number of trials have been taken by doing the variations in the electrode materials of ultracapacitor and the quantity of the electrode material loaded on the current collector. The effect of both these variations is studied over the specific capacitance, which is taken as output parameter of model. Developed model is validated at selected values of input parameters.

scholarly journals Analysis of Activated Carbon Monolith Derived from Carrot Juice Waste for Supercapacitor Electrode Application

2021 ◽  
Vol 10 (2) ◽  
pp. 26-31
Author(s):  
Dewi Ramayani ◽  
Yanuar Hamzah ◽  
Erman Taer ◽  
Novi Yanti ◽  
Afriwandi Apriwandi
Keyword(s):  
Cyclic Voltammetry ◽  
Fourier Transform ◽  
Activated Carbon ◽  
Energy Storage ◽  
Electrode Materials ◽  
Fourier Transform Infrared ◽  
Carrot Juice ◽  
X Ray Diffraction ◽  
X Ray ◽  
One Stage

Abstrak. Pengembangan sistem penyimpanan energi elektrokimia yang efektif dan efisien menjadi sangat penting pada era evolusi teknologi dan industri modern saat ini. Penelitian ini mengemukakan karbon aktif sebagai bahan dasar material elektroda untuk diaplikasikan pada piranti penyimpan energi, khsusunya superkapasitor melalui analisa densitas, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) dan Cyclic Voltammetry (CV). Karbon aktif berbentuk monolit disiapkan dari ampas jus wortel melalui pendekatan pirolisis satu tahap terintegrasi dan aktivasi kimia KOH. Proses pirolisis satu tahap terintegrasi dilakukan melalui penggabungan karbonisasi dan aktivasi fisika dalam atmosfer gas N2/CO2. Berdasarkan analisis data, karbon aktif menunjukkan sifat amorf yang normal dan sifat porositas terkonfirmasi. Lebih lanjut, sifat elekrokimia dievaluasi menggunakan metode Cyclic Voltammetry (CV) pada sistem dua elektroda. Kapasitansi spesifik yang dihasilkan sebesar 155 F/g dalam elektrolit 1 M H2SO4 dengan energi spesifik dan daya spesifik adalah 21,52 Wh/kg dan 77,57 W/kg. Berdasarkan analisa ini maka ampas jus wortel terkonfirmasi berpotensi sebagai karbon aktif untuk elektroda yang diaplikasikan dalam piranti penyimpan energi superkapasitor.Abstract. The development of an effective and efficient electrochemical energy storage system is very important in today's era of technological evolution and the modern industry. This research suggests that activated carbon is the raw material for electrode materials to be applied to energy storage devices, especially supercapacitors through density analysis, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), and Cyclic Voltammetry (CV). Activated carbon in the monolith form derived from carrot juice waste was prepared through a one-stage integrated pyrolysis approach and chemical activation of KOH. An integrated one-stage pyrolysis process was carried out by combining carbonization and physical activation in an N2/CO2 gas atmosphere. Based on data analysis, activated carbon performed normal amorphous behavior with confirmed porosity features. Furthermore, the electrochemical properties were evaluated using the Cyclic Voltammetry (CV) method at the two-electrode system. The specific capacitance was found as high as 155 F/g in the 1 M H2SO4 aqueous electrolyte with specific energy and specific power as high as 21.52 Wh/kg and 77.57 W/kg, respectively. Based on this analysis, the carrot juice waste has been confirmed to have the potential as activated carbon for the electrodes applied in supercapacitor energy storage technology.Keywords: Carrot Juice Waste, Activated Carbon, Electrode Materials, Supercapacitor

scholarly journals Screen Printed-Carbon Electrode Modifikasi Bismut untuk Analisis Kadmium dengan Voltametri Siklik

2020 ◽  
Vol 10 (1) ◽  
pp. 65
Author(s):  
Novianti Novianti ◽  
R V Manurung ◽  
Arifin Arifin
Keyword(s):  
Cyclic Voltammetry ◽  
Cadmium Concentration ◽  
Test Results ◽  
Screen Printed Carbon Electrode ◽  
Cadmium Metal ◽  
Cyclic Voltammetry Method ◽  
Proportional Relationship ◽  
The Stability ◽  
Characterization Test ◽  
A Current

Cadmium (Cd) is a heavy metal that has high toxicity. Cadmium levels need to be considered in an environment that can accumulate and can poison all biotic components. In this research measurements of cadmium metal using bismuth-modified carbon screen electrode  used cyclic voltammetry method. The parameters considered are the resolution of the comparative electrodes and the voltage produced from variations in cadmium concentration. The test results prove the stability of three sensors each at a voltage of 3.3 - 4.6 mV, 9.3-11.4 mV, and 27.4 - 29.8 mV. While the results of the cyclic voltammetry characterization test vary depending on the concentration of cadmium. Concentrations of 0.5-100 ng / mL produce an oxidation peak at a current of 2.03 x 10-5 - 5.00 x 10-5 A. These results show a directly proportional relationship between the cadmium concentration and the resulting current.

Activated Carbon Prepared from Lignite as Supercapacitor Electrode Materials

2015 ◽  
Vol 28 (1) ◽  
pp. 243-248 ◽  
Author(s):  
Lijun Li ◽  
Xiaoyan Wang ◽  
Shujuan Wang ◽  
Zhenzhu Cao ◽  
Zhaojun Wu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrode Materials ◽  
Supercapacitor Electrode ◽  
Supercapacitor Electrode Materials

scholarly journals PENGARUH TEMPERATUR AKTIVASI FISIKA TERHADAP KINERJA SUPERKAKASITOR BERBASIS ELEKTRODA KARBON DARI AMPAS SAGU

2018 ◽  
Vol 15 (2) ◽  
pp. 126
Author(s):  
Erman Taer ◽  
Zikri Alrifani ◽  
Rika Taslim
Keyword(s):  
Activated Carbon ◽  
Raw Materials ◽  
Chemical Activation ◽  
Carbon Electrode ◽  
Test Results ◽  
Super Capacitor ◽  
Density Values ◽  
Cyclic Voltammetry Method ◽  
Cell Electrode ◽  
Capacitor Cell

The manufacture of activated carbon based on sago pulp as a super-capacitor cell electrode has been successfully performed. Preparation of activated carbon begins with heating of drying raw materials in the sun and followed by oven drying, pre-carbonization, milling, sieving, chemical activation with 2 M concentration KOH solution, pellet printing, carbonization at 600° C using N2 gas followed by physics activation with temperature variation of 700° C; 750° C; 800° C; 850° C; 900° C using water vapor and polishing of pellets are some of the steps that are followed. Carbon electrode density values for each sample of AC 700, AC 750, AC 800, AC 850, and AC 900 are 0,790 g/cm3, 0,791 g/cm3, 0,795 g/cm3, 0,760 g/cm3, dan 0,754 g/cm3. The SEM results show the shape of the particles formed unoccupied. EDX test results show the percentage of carbon reaches 90.13%. The measurement of electrochemical properties performed by cyclic voltammetry method yielded an optimum specific capacitance of 106 F/g  obtained at a temperature of 750° C.

scholarly journals Analisis Nilai Kapasitansi Komposit Lithium Besi Oksida (Li5FeO4) dan Karbon Aktif Kulit Biji Mete sebagai Bahan Dasar Elektroda Baterai Lithium: Efek Variasi Massa

2020 ◽  
Vol 5 (3) ◽  
pp. 233
Author(s):  
Ahmad Ahmad ◽  
Erniwati Erniwati ◽  
Vivi Hastuti RM
Keyword(s):  
Cyclic Voltammetry ◽  
Activated Carbon ◽  
Mass Fraction ◽  
Lithium Battery ◽  
Electrode Materials ◽  
Mass Composition ◽  
Solid State Method ◽  
Cashew Nut ◽  
Battery Electrode ◽  
Cashew Nut Shell

Previous researchers have investigated the manufacture of lithium battery electrode materials from Li5FeO4 composites with activated carbon of cashew nutshells. However, the effect of combining activated carbon to the lithium battery electrode material was not reviewed. The purpose of this study was to determine the effect of the comparison of the mass composition of Li5FeO4 and cashew nut shell active carbon on the capacitance value of the lithium battery electrode. These electrodes generated using the high-temperature solid-state method. The material used is iron oxide Fe2O3 from iron sand and LiOH.H2O, which homogenized with a sintering temperature of 850̊C for 15 hours with a ratio of 6/1 to produce Li5FeO4. Then Li5FeO4 was compiled with activated carbon of cashew nut shells with a mass fraction of activated carbon 60%, 50%, 40%, and 20%. Furthermore, it characterized using cyclic voltammetry. The results of cyclic voltammetry characterization for a mass fraction of 60% produce a capacitance of 4.7 F / g, a mass fraction of 50% produces a capacitance of 59.1 F / g, a mass fraction of 40% produces a capacitance of 87, 3 F / g, and a mass fraction of 20% produces capacitance of 243 F / g. From the four variations of mass fraction, the capacitance that meets the lithium battery electrode capacitance on the market is the mass fraction of 20%.

Supercapacitor Electrode Materials Based on Activated Carbon /Polyaniline Doped with Nickel Salt

2011 ◽  
Vol 197-198 ◽  
pp. 1053-1056
Author(s):  
Yan Hong Tian ◽  
Xue Jun Zhang ◽  
Yu Zhao
Keyword(s):  
Activated Carbon ◽  
Electrode Materials ◽  
In Situ Polymerization ◽  
Nickel Content ◽  
Reference Electrode ◽  
Nickel Salt ◽  
Supercapacitor Electrode ◽  
Discharge Performance ◽  
Supercapacitor Electrode Materials ◽  
Charge Discharge

Two types of supercapacitor electrode materials have been synthesized: AC/PANI, activated carbon composites polyaniline by in-situ polymerization of aniline on the surface of activated carbon, and Ni-AC/PANI, the AC/PANI composite dopes with nickel. The microstructure of composites has been examined by scanning electron microscope (SEM). Fourier transform infrared spectroscopy (FI-IR) has been used to determine the molecular structure and chemical bond of the composites. The nickel content has been measured by atomic absorption spectrometry (AAS). The electrochemical performance of the composite has been characterized by cyclic voltammery and galvanostatic charge-discharge in 6mol•L-1 KOH solution using Hg/HgO as reference electrode. Due to the doping of nickel salt, Ni-AC/PANI shows desired microstructure, good high-current charge-discharge performance and good electrochemical behavior with an capacitance of 535F•g-1, 38.2% higher than that of AC/PANI.

scholarly journals Biochar from Spent Malt Rootlets and Its Application to an Energy Conversion and Storage Device

Chemosensors ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 57
Author(s):  
John Vakros ◽  
Ioannis D. Manariotis ◽  
Vassilios Dracopoulos ◽  
Dionissios Mantzavinos ◽  
Panagiotis Lianos
Keyword(s):  
Activated Carbon ◽  
Fuel Cell ◽  
Energy Conversion ◽  
Storage Device ◽  
Alkaline Electrolyte ◽  
Energy Storage Device ◽  
Supercapacitor Electrode ◽  
Energy Applications ◽  
Energy Conversion And Storage ◽  
And Storage

Activated carbon obtained from biomass wastes was presently studied in order to evaluate its applicability in an energy storage device. Biochar was obtained by the carbonization of spent malt rootlets and was further processed by mild treatment in NaOH. The final product had a specific surface of 362 m2 g−1 and carried Na, P and a few mineral sites. This material was first characterized by several techniques. Then it was used to make a supercapacitor electrode, which reached a specific capacitance of 156 F g−1. The supercapacitor electrode was combined with a photocatalytic fuel cell, making a simple three-electrode device functioning with a single alkaline electrolyte. This device allows solar energy conversion and storage at the same time, promoting the use of biomass wastes for energy applications.

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