Výsledky vyhledávání - "Eko Andrijanto"

Akademický článek

Corncob waste derived carbon with sulfonic acid group: An efficient heterogeneous catalyst for production of ethyl levulinate as biodiesel additives

Autor: Dian Ratna Suminar, Cinantya Zahrina Pribadi, Qonita Rahmah Fitriana, Eko Andrijanto, Muhamad Diki Permana, Diana Rakhmawaty Eddy, Iman Rahayu

Publikováno v: Heliyon, Vol 10, Iss 18, Pp e37687- (2024)

Alkyl levulinate is a biomass-based chemical compound used as a fuel additive. This research aims to produce ethyl levulinate from levulinic acid and ethanol using esterification with the assistance of a heterogeneous sulfonated carbon catalyst. The

Externí odkaz: https://doaj.org/article/33dd980b53f34d5ca657749ba54fdf19

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Akademický článek

Pengaruh Temperatur Kalsinasi Terhadap Kapasitas Ion Katalis Asam Heterogen Berbasis Silika dan Aplikasinya pada Sintesis Metil Oleat

Autor: Joko Suryadi, Nanda Nabila, Syafa Neiska Bayhaqi, Eko Andrijanto

Publikováno v: Kovalen: Jurnal Riset Kimia, Vol 9, Iss 2, Pp 122-131 (2023)

Sulfated silica catalyst is a solid acid catalyst which in its application is used to accelerate esterification reactions. The purpose of this study was to determine the effect of calcination temperature and increasing the amount of catalyst on the e

Externí odkaz: https://doaj.org/article/5fc001e47219424f8c36ac29ada7613c

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Akademický článek

Pemodelan Kesetimbangan Massa pada Keadaan Tunak (Steady) sebagai Penentuan Konsentrasi Optimum Tawas (Alumunium Sulfate) pada Proses Penurunan Kadar Fe pada Sumber Air Tercemar

Autor: Alfiana Adhitasari, Eko Andrijanto

Publikováno v: Jurnal Teknik Kimia dan Lingkungan, Vol 4, Iss 2, Pp 128-132 (2020)

Air tanah merupakan andalan sumber mata air bagi masyarakat pada umumnya, beberapa sumber air tanah sering dijumpai air yang masih terkandung Fe, hal tersebut berdampak buruk bagi kesehatan oleh karena itu perlu dilakukan penuruan kadar Fe pada air s

Externí odkaz: https://doaj.org/article/a8f2c6e3c2064707a06b7c5a6bbef4fb

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Optimasi Suhu Reaksi Sintesis Senyawa LiFePO4 Menggunakan Prekursor Lithium Sulfat Sebagai Sumber Ion Lithium

Autor: null Rispiandi, Eko Andrijanto

Publikováno v: Fluida. 15:38-42

Dengan meningkatnya kebutuhan akan konsumsi energi, maka semakin meningkat pula kebutuhan akan peralatan untuk mengkonversi energi dan menyimpannya, seperti baterai lithium. Lithium-ion batteries (LIBs) menjadi salah satu alat yang paling mendapat pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::593776933ce0b5cfd46bd87a686b984e
https://doi.org/10.35313/fluida.v15i1.3700

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Sintesis dan Karakterisasi Lihium Iron Phosphate (LiFePO4) Menggunakan Metoda Solid State Reaction Sebagai Katoda Pada baterai Lithium-Ion

Autor: Dian Ratna Suminar, Rusdan Fadila, Oki Putra, Eko Andrijanto

Publikováno v: Fluida. 14:42-50

Perkembangan baterai tak luput dari kebutuhan energi yang kian meningkat. Meskipun sumber energi tidak terpaku pada baterai, namun baterai banyak diminati karena dapat menampung cukup banyak energi, relatif aman, dan bersifat portable. Penelitian ini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::625b06cd4fa7044cf28b3f799a218bee
https://doi.org/10.35313/fluida.v14i2.2632

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Pemodelan Kesetimbangan Massa pada Keadaan Tunak (Steady) sebagai Penentuan Konsentrasi Optimum Tawas (Alumunium Sulfate) pada Proses Penurunan Kadar Fe pada Sumber Air Tercemar

Autor: Eko Andrijanto, Alfiana Adhitasari

Publikováno v: Jurnal Teknik Kimia dan Lingkungan, Vol 4, Iss 2, Pp 128-132 (2020)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c084b509159ba6a23c2572cf5bb2ca9a
https://doi.org/10.33795/jtkl.v4i2.136

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Preparation of Graphene Oxide Sand Composites as Super Adsorbent for Water Purification Application

Autor: Nina Marlina, Eko Andrijanto, Cahya Lintang, Hanifa Citra, Gatot Subiyanto

Publikováno v: MATEC Web of Conferences, Vol 156, p 05019 (2018)

This paper describes a method to synthesize a graphene oxide sand composites (GSC) as filter media (absorbent) for water purification. Graphene oxides is synthesized from graphite using modification of Hummer's method. The graphene oxide sand composi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb51a0b4e441a2f0fcb8bb4cfd712a6f
https://doaj.org/article/4d0146e609244d8e87b1ad9fc747ca71

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The Effect of Co-solvent on Esterification of Oleic Acid Using Amberlyst 15 as Solid Acid Catalyst in Biodiesel Production

Autor: Iwan Ridwan, Nina Marlina, Resza Diwansyah Putra, Adi Kusmayadi, Mukhtar Ghazali, Eko Andrijanto

Publikováno v: MATEC Web of Conferences, Vol 156, p 03002 (2018)

The oleic acid solubility in methanol is low due to two phase separation, and this causes a slow reaction time in biodiesel production. Tetrahydrofuran as co-solvent can decrease the interfacial surface tension between methanol and oleic acid. The ob

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1e58a862a26bf889966fc54ccfeae3
https://doaj.org/article/b59a1a008b6046afaced7db76b060738

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Facile synthesis of graphene from graphite using ascorbic acid as reducing agent

Autor: Eko Andrijanto, Gatot Subiyanto, Sadur Rifki, Shoerya Shoelarta

Publikováno v: AIP Conference Proceedings.

Graphene has attracted a tremendous attention in recent years due to its unique properties such as mechanical, thermal, optical and electrical properties. However, a large scale production of this material is still an issue and subjected to intense r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02fec5023f80089c179f6a4b187f48df
https://doi.org/10.1063/1.4945457

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