DSpace 7

DSpace is the world leading open source repository platform that enables organisations to:

  • easily ingest documents, audio, video, datasets and their corresponding Dublin Core metadata
  • open up this content to local and global audiences, thanks to the OAI-PMH interface and Google Scholar optimizations
  • issue permanent urls and trustworthy identifiers, including optional integrations with handle.net and DataCite DOI

Join an international community of leading institutions using DSpace.

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  • Demo Site Administrator = dspacedemo+admin@gmail.com
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Recent Submissions

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SINTESIS KOMPOSIT MnOx/ABU CANGKANG KELAPA SAWIT MELALUI METODE SOL GEL UNTUK DEGRADASI METILEN BIRU : VARIASI MASSA ABU CANGKANG
(Elfitra, 2023-12) Irfan; Awaluddin, Amir
The manganese oxide mineral is an oxidizer which plays an important role in the transformation of various compounds into simpler compounds. This mineral is generally mixed with manganese oxide which has a different structure and other metal oxides. Synthesis of manganese oxide can be carried out using the sol gel method. The ratio of reactants and concentrations as well as the presence of other compounds during the reaction greatly influence the structure of the manga oxide produced. The aim of this research is to examine the effect of shell ash mass on the characteristics of the MnOx/ACKS composite by mixing KMnO4 and glucose to form a gel, followed by the addition of ACKS. The structure of MnOx in the composite was determined by XRD. The results of XRD show the presence of cryptomelane, hausmanite, manganosite, birnessite phases. The relegation result is 74,13%.
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PEMBUATAN ELEKTRODA KARBON AKTIF BERBASIS CANGKANG BUAH MELINJO SEBAGAI MATERIAL UNTUK ELEKTRODA SEL SUPERKAPASITOR
(Elfitra, 2023-12) PUTRI, HARDINI CHANIA
Biomass-based porous carbon electrodes have been widely used as a basic material for making supercapacitor cell electrodes, because its application can be applied in the long term, sustainable, renewable, easy to find and has economic value. This research used biomass melinjo fruit shell (CBM) with variations in the addition of melamine mass, namely 0, 0.1, 0.3, and 0.5 g as carbon electrodes for supercapacitor cells. The process of synthesizing supercapacitor cell electrodes is through several stages, a pre-carbonization at of 200°C, chemical activation using KOH, carbonization with gas at a temperature of 600°C and physical activation with gas at a temperature of 800°C. The highest density shrinkage value is owned by the CBM-03 sample is 56.45%.
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PEMBUATAN ELEKTRODA KARBON AKTIF BERBASIS CANGKANG BUAH MELINJO SEBAGAI MATERIAL UNTUK ELEKTRODA SEL SUPERKAPASITOR
(Elfitra, 2023-12) Putri, Hardini Chania
Biomass-based porous carbon electrodes have been widely used as a basic material for making supercapacitor cell electrodes, because its application can be applied in the long term, sustainable, renewable, easy to find and has economic value. This research used biomass melinjo fruit shell (CBM) with variations in the addition of melamine mass, namely 0, 0.1, 0.3, and 0.5 g as carbon electrodes for supercapacitor cells. The process of synthesizing supercapacitor cell electrodes is through several stages, a pre-carbonization at of 200°C, chemical activation using KOH, carbonization with gas at a temperature of 600°C and physical activation with gas at a temperature of 800°C. The highest density shrinkage value is owned by the CBM-03 sample is 56.45%.
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PEMBUATAN ELEKTRODA KARBON AKTIF BERBASIS BIOMASSA TANDAN KOSONG KELAPA SAWIT SEBAGAI MATERIAL UNTUK ELEKTRODA SEL SUPERKAPASITOR
(Elfitra, 2023-12) Gunawan, Firman
Porous carbon electrodes based on biomass derivatives have been widely used as the basis for making supercapacitor cell electrodes, because their application can be applied in the long term, sustainable, renewable, easily available, and economically valuable. This research uses biomass derived from empty palm bunches (OPEFB) using ZnCl2 activator and heteroatom doping as a supercapacitor cell carbon electrode. The synthesis process of supercapacitor cell electrodes goes through several stages, namely the hydrothermal carbonization stage with a temperature of 180°C, chemical activation using ZnCl2 chemical activation using ZnCl2 , nitrogen doping as much as 3 grams, carbonization with N2 gas at a temperature of 600°C and physical activation with CO2 gas at a temperature of 800°C. The highest density shrinkage value is owned by the TKKS-M sample which is 57.344%.
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ELEKRODA KARBON AKTIF BERBAHAN DASAR KULIT UDANG WINDU (Paneous Monodon) UNTUK APLIKASI SUPERKAPASITOR
(Elfitra, 2023-12) Yolanda, Fingky
Supercapacitors are potential energy storage devices that are inexpensive to maintain and environmentally friendly. Electrode materials with varying carbonization temperatures were prepared using tiger prawn shell biomass (KUW). The manufacture of carbon electrodes is carried out using several processes, namely the precarbonization process, activation with a KOH activator, carbonization process, and physical activation using CO2 gas. As a precursor through the activation process of KOH and CO2. The pore structure can be adjusted by varying the CO2 activation temperature at 600℃, 700℃, and 700℃ with the respective sample codes, namely KUW-600, KUW-700 and KUW-800. The resulting electrode has a unique and efficient structure and pore regulation and has great potential for supercapacitor applications. The highest density loss value possessed by the KUW-700 sample was 19.16%.