Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Fitria, Rahmawati"'
Autor:
Fitria Rahmawati, Imam Shofid Alaih, Azka W Rosalin, I F Nurcahyo, Hartoto Nursukatmo, Hanida Nilasary, Haryo S. Oktaviano, Edo Raihan, Soraya U. Muzayanha, Muhammad F. A. Handaka
Publikováno v:
International Journal of Renewable Energy Development, Vol 13, Iss 5, Pp 952-959 (2024)
Solid electrolyte is the essential part in all-solid-state battery (ASSB), in which the sintering step is vital to get a dense and high ionic conductivity. However, Li-loss frequently occurs at a high temperature, causing ionic conductivity to drop.
Externí odkaz:
https://doaj.org/article/9f993690617d4ab281883cdbf776f690
Autor:
I. F. Nurcahyo, Eddy Heraldy, Suciana Nur Cahyaningsih, Fitria Rahmawati, Khoirina Dwi Nugrahaningtyas, Yuniawan Hidayat, Firanda Larasati
Publikováno v:
Jurnal Kimia Sains dan Aplikasi, Vol 27, Iss 8, Pp 388-394 (2024)
The KCaF3 perovskite catalyst was successfully synthesized by reacting limestone (natural-CaCO3) with potassium fluoride (KF). The synthesis of the KCaF3 catalyst was conducted with several variations in the mole ratio of CaCO3 to KF (1:1, 1:2, and 1
Externí odkaz:
https://doaj.org/article/1fe09cac014b4c559d3a5830173baed8
Autor:
Khoirina Dwi Nugrahaningtyas, I F Nurcahyo, Yuniawan Hidayat, Fitria Rahmawati, Zaki Fadlulloh, Eddy Heraldy, Nisriina 'Abidah Qurrotul'aini
Publikováno v:
Molekul, Vol 19, Iss 2, Pp 368-378 (2024)
ABSTRACT. Bio-oil is a renewable energy source with high oxygen levels, and anisole is a chemical widely employed in research to represent it. Catalytic hydrodeoxygenation (HDO) reduces the oxygen content. A catalyst known as nickel-modified HZSM-5 h
Externí odkaz:
https://doaj.org/article/7c56b4cdfe6a44c39fd50c62d8458b63
Autor:
Muhammad Abdurrahman Munir, Fitria Rahmawati, Jamia Azdina Jamal, Evi Rahmawati, Faras Zahra Fajriyaningsih, Febrianty Ratashya Putri, Adhi Gunawan
Publikováno v:
Green Chemistry Letters and Reviews, Vol 17, Iss 1 (2024)
Novel bio-based electrode polyurethane (PU) fabricated using various conducting materials such as graphene oxide (GO), gold (Au), and carbon nanotube (CNT) as the primary source of a charge carrier. Initially, PU/GO, PU/Au, and PU/CNT polymers were s
Externí odkaz:
https://doaj.org/article/68991474299842a9b9e65c7f3c7eae1e
Publikováno v:
International Journal of Renewable Energy Development, Vol 13, Iss 1, Pp 19-30 (2024)
This research aimed to produce a screen-printed carbon electrode (SPCE) from an activated coconut shell carbon. As a raw material, coconut shell char provides renewability and is abundantly available in the market. Meanwhile, SPCE offers a simple ele
Externí odkaz:
https://doaj.org/article/b191ca9783ff465a9233b3cf35f717ca
Kinetics Study on Thermal Degradation of Polystyrene and Sulfonated Polystyrene from Styrofoam Waste
Publikováno v:
Molekul, Vol 18, Iss 3, Pp 386-395 (2023)
This research studied kinetics of thermal degradation of polystyrene (PS), and sulfonated polustyrene (sPS) which were synthesized from styrofoam waste. The thermal study was conducted by thermogravimetric analysis (TGA) at various heating rate of 10
Externí odkaz:
https://doaj.org/article/f4e8bedabbcc4db798a6a1db2c99ba86
Publikováno v:
International Journal of Renewable Energy Development, Vol 12, Iss 4, Pp 789-796 (2023)
This research aims to study the Al-Y dopant to Lithium Lanthanum Zirconate (LLZO) to the characteristics and electrical properties of the LLZO as solid electrolyte. The synthesis was conducted through solid state reaction with Al2O3 and Y2O3 as dopan
Externí odkaz:
https://doaj.org/article/701da63387274888b343a617ff46d3c1
Publikováno v:
Molekul, Vol 18, Iss 1, Pp 140-146 (2023)
Defects in graphene alter its structure, electrical characteristics, and interaction with K+ ions. The related characteristics of divacancy defect graphene and N, S codoped divacancy graphene were effectively explored using the DFTB technique. Divaca
Externí odkaz:
https://doaj.org/article/c829ac105bbd41fbbec083cffd093554
Publikováno v:
Jurnal Riset Kimia, Vol 13, Iss 2, Pp 130-137 (2022)
A study on the effect of S doping and K+ adsorption to the electronic properties of graphene has been conducted by DFTB (Density Functional Tight Binding) calculation. The supercell of 40 x 40 x 1 configured from the 4x4x1 unit cell of graphene was o
Externí odkaz:
https://doaj.org/article/c40eaf875e5840e08011321186cffbc0
Publikováno v:
International Journal of Technology, Vol 13, Iss 1, Pp 168-178 (2022)
In this research, a cyclic voltammetry (CV) method was applied to intercalate Na+ into an FePO4/Al substrate to produce NaFePO4/Al as a potential cathode material. The sodiation was conducted directly to FePO4 instead of applying delithiation to
Externí odkaz:
https://doaj.org/article/6992e1267ba1410eb0c21fa01ab4c7d6