Pengaruh Variasi Chelating Agent terhadap Karakteristik Produk pada Sintesis Elektrolit Padat NaMn2-xMgxO4 dengan Metode Sol-Gel

Sefthymaria Sefthymaria; Rahmad Nuryanto; Taslimah Taslimah

doi:10.14710/jksa.18.3.79-84

DOI: https://doi.org/10.14710/jksa.18.3.79-84

Pengaruh Variasi Chelating Agent terhadap Karakteristik Produk pada Sintesis Elektrolit Padat NaMn2-xMgxO4 dengan Metode Sol-Gel

Sefthymaria Sefthymaria, Rahmad Nuryanto

, Taslimah Taslimah

Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 1 Dec 2015.

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Abstract

Telah dilakukan penelitian mengenai pengaruh variasi chelating agent pada sintesis elektrolit padat NaMn_2-xMg_xO₄dengan metode sol-gel. Penelitian ini bertujuan untuk mengetahui pengaruh variasi asam (asam askorbat, asam sitrat dan asam maleat) sebagai chelating agent terhadap kristalinitas, ukuran kristal, konduktivitas dan morfologi dari material yang dihasilkan. Tahapan penelitian ini meliputi pencampuran reagen, evaporasi, pengeringan dan kalsinasi. Produk kalsinasi dikarakterisasi menggunakan XRD, multimeter dan SEM-EDS. Mineral penyusun elektrolit padat meliputi NaMnO₂, MnO₂ MgO dan Na₂O. Kristalinitas terendah dan konduktivitas tertinggi dimiliki oleh produk yang menggunakan asam askorbat sebagai chelating agent, dengan nilai konduktivitas 1,91 x 10^-4 Scm^-1; ukuran kristal 26,09 nm dan ukuran aglomerasi 0,66 μm. Elektrolit padat NaMn_2-xMg_xO₄ yang dihasilkan untuk variasi chelating agent asam askorbat memiliki formula spinel NaMn_1,32Mg_0,68O₄.

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Keywords: elektrolit padat; metode sol-gel; chelating agent; konduktivitas

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Section: Research Articles

Language : ID

In Vol 18, No 3 (2015): Volume 18 Issue 3 Year 2015

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