Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

1.745

P-Index

This Author published in this journals

All Journal International Journal of Science and Engineering (IJSE) GRADIEN Jurnal Riset Kimia Edumatsains IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Zarah Science and Technology Indonesia Chimica et Natura Acta SPIN: Jurnal Kimia & Pendidikan Kimia Indonesian Journal of Community Empowerment and Service Aceh International Journal of Science and Technology

Eka Angasa

Department Of Chemistry-Faculty Of Mathematics And Natural Sciences, Universitas Bengkulu

Author-ID : 228105

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

Published : 18 Documents Claim Missing Document

Claim Missing Document

Articles

Title

Electrochemistry Study on PVC-LiClO4 Polymer Electrolyte Supported by Bengkulu Natural Bentonite for Lithium Battery Ghufira Ghufira; Sal P Yudha; Eka Angasa; Jhoni Ariesta
Aceh International Journal of Science and Technology Vol 1, No 1 (2012): April 2012
Publisher : Graduate Program of Syiah Kuala University

Abstract – In this research bentonite was used as filler to produce polymer electrolyte (PVCLiClO4). Some weight variation of bentonite have been made by addition, such as 0% wt/wt; 5% wt/wt ; 10% wt/wt ; 15% wt/wt ; 20% wt/wt ; and 25% wt/wt of bentonite to the mixture of 0,5 gram of PVC and 0,125 gram of LiClO4. Ionic conductivity of polymer electrolyte was tested using impedance spectroscopy. The result of the research was showed that a mixture of PVCBentonite( 10% wt/wt)-LiClO4 gives the highest ionic conductivity (4,86 x 10-3 S.Cm-1). This result indicated that the presence of natural bentonite can be used as a filler in the current composite polymer electrolyte and can increase the ionic conductivity of the polymer electrolyte.

Preparation of Fe-intercalated Graphite Based on Coal Tailings, Dimensional Structure Irfan Gustian; Eka Angasa; Dwi Agustini; Evi Maryanti; Dyiah Fitriani
Aceh International Journal of Science and Technology Vol 4, No 3 (2015): December 2015
Publisher : Graduate Program of Syiah Kuala University

Intercalated graphite from coal tailings have been modified through the intercalation of iron. Coal tailings which is a byproduct of the destruction process and flakes washing results from mining coal. Intercalation of iron goal is to improve the physical properties of graphite and modifying sizes of crystal lattice structure with thermal method. Modification process begins with the carbonization of coal tailings at 500ºC and activated with phosphoric acid. Activation process has done by pyrolysis at 700ºC. The results of pyrolysis was soaked in mineral oil for 24 hours, then pyrolysis again with variations in temperature 800°C and 900ºC for 1 hour and subsequent intercalation iron at 1% and 2%. Material before activated, after activated, and the results of pyrolysis still indicates order nano: 29, 25 and 36 nm respectively. X-ray diffraction characterization results indicate that change in the structure, the sizes crystal lattice structure of the material The greater the concentration of iron was added, the resulting peak at 2θ = 33 and 35 also will be more sharply. The results of SEM showed different morphologies from each treatment.

Physico-chemical characteristics of Composites material Based on Sulfonated Cyclone Fibre Cellulose and Benzotriazole Irfan Gustian; Eka Angasa; Ghufira Ghufira
Aceh International Journal of Science and Technology Vol 6, No 2 (2017): August 2017
Publisher : Graduate Program of Syiah Kuala University

Composites material based on sulfonated cyclone fibre cellulose (SCFC) and benzotriazole (Btri) have been prepared. Cyclone fibre cellulose (CFC) was sulfonated with trimethylsilyl chlorosulfonate (TMSCS), with high degree of sulfonation (150%). The composites material, SCFC-Btri were prepared by doping of benzotriazole in various mole ratios (0.125, 0.25 and 0.5). FTIR spectrum has confirmed the ionic interaction between sulfonic acid from sulfonated cyclone fibre cellulose and benzotriazole units. Thermogravimetric analysis (TGA) showed that the composites material was thermally stable up to 150 °C. The results showed that methanol permeability of the composite material was lower than pristine Nafion112. Activation energy obtained for the materials are 0. 106 eV, 0.144 eV and 0.137 eV for SCFC-Btri mole ratios 0.125, 0.25 and 0.5 respectively, composites material was expected to be used as raw material in the fuel cell.

Co-Authors A.A. Ketut Agung Cahyawan W Agus Martono Hadi Putranto Amanta, Reyrin Ceria Asdim Charles Banon Dwi Agustini Dwita Oktiarni Dyah Fitriani Dyiah Fitriani Elviyanti, Sutra Eni Widiyati Etriyanto Arman Evi Maryanti Fatimah, Shafaa Bhrenasj G Ghufira Ghufira Ghufira Ghufira Ghufira Ghufira Ghufira H Hairulumah Intan N.S. Napitupulu Irfan Gustian Irfan Gustian Irfan Gustian Irfan Gustian Irfan Gustian Jhoni Ariesta Kazi, Mohsin M Miliani Martono Hadi Putranto, Agus Morina Adfa Nadia Refa Fheronica Nancy Willian Nendo, Felicia Febyola Nesbah, Nesbah Nurhasana Nurwidiyani, Ria Puspita, Heni Putri Ramanda Reagen, Muhamad Alvin Rewan Jayadi Rika Agustin Rika Agustin Sal P Yudha Sal Prima Yudha SALPRIMA YUDHA S Taupik Rahman Taupik Rahman Teja Dwi Sutanto Tri Firdatuh Rozqiah Trilia Ananta Pramita Sari Vivi Sisca Yuliah, Maya

Title Search

Found 3 Documents Search Journal : Aceh International Journal of Science and Technology

Abstract

Abstract

Abstract

Title

Found 3 Documents
Search
Journal : Aceh International Journal of Science and Technology