Lithium-ion batteries are most popular battery for applications as portable electrical energy storage. have some advantages compared to other such large specific capacity, light weight and long-life span. One of the components that contribute quality is binder material. Carboxymethyl Cellulose (CMC) one widely used materials than PVDF. CMC can be synthesized from various organic empty bunches palm, water hyacinth salak-fruit seed. In this research, obtained waste seed (Salacca zalacca) then...

The studies of polyaniline (PANI) and other conducting polymers have shown that they possess semiconducting-properties. PANI is one the conductive used as a battery electrode, corrosion inhibitor, sensor. study aims to investigate effect hydrochloric acid dope PANI. Polyaniline was synthesised by oxidation aniline with ammonium peroxidisulphate (APS) an oxidant interfacial method in immiscible organic/aqueous biphasic system, dopant. result showed that, has conductivities range...

We have successfully prepared porous carbon from water hyacinth plants using several steps, i.e., carbonization, activation, and calcination processes. Water is an alternative as a material due to the ease low cost of manufacturing process, abundant raw materials in nature, its contribution solving environmental problems. Utilization weed for will provide added value hyacinth. In this research, used host sulfur electrodes lithium batteries. The N2 adsorption desorption characterization...

Abstract The high capacity has encouraged many researchers to study the application of sulfur as a battery cathode replace current commercial cathode. purity and degree crystallization are critical performance Li-Sulfur batteries. This research focuses on improving natural obtained from mining in Kawah Putih South Bandung. purification method used is dissolution-recrystallization which based different solubility its impurities toluene solvent. By dissolving at certain temperature, will...

Electrical energy is a necessity for human beings and the use of electrical which pretty much contained in household sector. Electricity used sector amounted to 35% total electricity consumed Indonesia every month. The savings are first step that can be done anticipate crisis. purpose research makes tool monitor calculate power consumption by an electronic device or whole home performed remotely using internet data transmission, displayed on PC screen WEB site. results have been made...

Recently, the most dominating power supply on mobile electronics market are rechargeable Lithium-ion batteries. This is because of a higher energy density and longer lifetime compared to similar battery systems. Graphite commonly used as anode material in batteries, its excellent electrochemical characteristics low cost fabrication. In this paper, we reported optimization concentration CMC (carboxymethyl cellulose), that acts binder for graphite anode. Based our experimental results, best...

In recent years, LiFePO4 studied intensively as a cathode material for Li-ion batteries because of high theoretical capacity, stability, and environmental friendly. However, its low intrinsic electronic conductivity. One way to improve conductivity is addition conductive material. Polyaniline (PANI) one the polymer materials that widely unique physical chemical properties which can be an insulator conductor by doping-dedoping processes has large potential application. The purpose this...

One of the important characteristics magnetic materials is measurement through Superconducting Quantum Interference Device (SQUID) especially magnetization temperature dependence M(T) ZFC and MT FC measurement. In this work, we reported measurements magnetite nanoparticles without SiO 2 encapsulation (Fe 3 O 4 ) with .SiO at application fields 100 Oe. The was synthesized by co-precipitation method. It calculated that blocking Fe 118.38 K 209.03 K, respectively. temperatures increase encapsulation.

Kinerja ASN menjadi tolak ukur keberhasilan penyelenggaraan birokrasi sesuai standar operasional prosedural. Strategi pemerintah dalam meningkatkan kualitas dengan penguatan budaya kerja sebagai bentuk pembaharuan pengelolaan yang memiliki kelas dunia atau world class government. Salah satu strategi konsep berkakhlak Sebagai Branding Employer. Termasuk Pemerintahan menerapkan Berakhak untuk peningkatan kinerja dan dikaitkan komitmen Pemerintahan. Riset ini metode deskriptif pendekatan...

Head office and branch VPN networks are used to connect the head with branches spread across geographically separated areas. However, network security availability can be affected by various factors, such as internet connection failures, excessive bandwidth usage, other disturbances. To overcome this, researchers provide a solution for implementing Failover at using SDWAN technology. With SDWAN, companies choose path that is more reliable has higher speed, thereby optimizing usage improving...

In this research, the enhancement of LiFePO4 conductivity was conducted by doping method with carbon materials. Carbon-based materials were obtained from mixture sucrose, and precursor LiH2PO4 α-Fe2O3 synthesized solid state reaction. Sintering temperature varied at 700°C, 800°C, 900°C 1,000°C. The result showed that C-LiFePO4 could be using reaction method. Based on XRD FTIR spectrums, can identified as type crystal, characterized appearance sharp signal (011), (211) typical peak...

Oksida grafit (GO) telah berhasil disintesis menggunakan metode Hummers dari serbuk dengan pelarut asam sulfat (H2SO4), natrium nitrat (NaNO3), kalium permanganat (KMnO4), dan hidrogen peroksida (H2O2). Hasil sintesis berupa pasta dicuci klorida (HCl) akuades berulang-ulang untuk mendapatkan GO yang relatif murni. Pasta tersebut selanjutnya dikeringkan digerus karakterisasi EDS (Energy Dispersive Spectroscopy), difraksi XRD (X-ray Difraction), spektroskopi FTIR (Fourier Transform Infrared)....

We have studied the preparation of organic-inorganic hybrid polymer precursors by sol-gel technique and their utilization for nanostructured optical components photonic applications.The gel were prepared from siloxane modified polymerizable acrylate groups, which can be processed further photopolymerization process.Molecular structure characterizations means FTIR measurements indicate conversion C=C bonds into C-C after photopolymerization.This bond produces high cross-linking between...

We report characteristics of reduced graphene oxide (RGO) as a counter electrode for dye-sensitized solar cell (DSSC). The RGO thin films were prepared on FTO (Fluorine-doped Tin Oxide) substrates and followed by reduction process. film was used in DSSC device, with structure FTO/TiO2/ruthenium dye/mosalyte/RGO/FTO. UV-Vis measurements show an increasing absorption spectrum after thermal process the FT-IR confirms removal oxygen containing groups efficiency (η) that applied is 0.96%.

Partially Zn-substituted for Cu in electron-doped superconducting cuprates of Eu1.85Ce0.15Cu1-yZny4+α-δ (ECCZO) with y = 0, 0.01, 0.02, 0.05 and various δ values have been studied order to elucidate the effect nonmagnetic impurity Zn their structure resistivity properties cuprates. It has found that main peaks T' structures are clearly observed all samples. Superconductivity disappeared substitution system ECCZO.

The size effect of magnetic nanoparticles provides a various characteristic as change domain size. We report, synthesis core-shell iron oxide and properties. Iron particles were synthesized by co-precipitation method (III) FeCl 3 .6H 2 O, (II) .4H in the mixture with or without TEOS to investigated physical From XRD measurement, it was observed that all SiO has hematite phase a-Fe O . M-H loop ferromagnetic characteristic, while showed medium state contribution superparamagnetic

Water Hyacinth (WH) is a plant that can absorb various pollutants in water. However, this categorized as an invasive become weed the waters. To improve functionality of WH, processing WH needed to be used for applications. One modifications porous carbon battery cathode composite. In paper, we reported synthesis from WH. processed into by carbonization at temperatures 400, 500 and 600 °C with activators KOH, H 3 PO 4 ZnCl 2 obtain high quality which has electrical conductivity, large...

Pada kegiatan pengabdian pada masyarakat ini, telah berhasil didesain dan dibuat alat perangkap hama dengan basis cahaya UV yang sumber listriknya dari panel surya. Untuk memudahkan di dalam penggunaannya, dilengkapi kontroler sehingga pengisian baterai penyalaan lampu dapat diatur waktunya secara otomatis. Berdasarkan hasil pengujian dilakukan, berfungsi baik, yaitu berlangsung normal saat matahari terbenam, otomatis menyala selama 10 jam. Setelah jam akan mati untuk menghemat...