Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA18419, author = {Indah Mufida and Rahmad Nuryanto and Taslimah Taslimah}, title = {Sintesis Elektrolit Padat NaMn2-xCoxO4 dengan Variasi Suhu Kalsinasi Menggunakan Metode Sol-Gel dan Karakterisasinya}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {18}, number = {1}, year = {2015}, keywords = {Sol-Gel; Elektrolit padat; Konduktivitas; NaMn2-xCoxO4}, abstract = {Elektrolit padat NaMn 2-x Co x O 4 telah disintesis menggunakan metode sol-gel dengan pelarut air deionisasi. Tahapan reaksi yang terjadi adalah hidrolisis, substitusi, polimerisasi, pembentukan oksida dan penyusunan spinel. Bahan yang digunakan antara lain CH 3 COONa (0,4 M), (CH 3 COO) 2 Mn (0,6 M), (CH 3 COO) 2 Co (0,2 M) dan Polivinil Alkohol (PVA) 8 % (w/v). Variasi suhu kalsinasi yang diterapkan masing-masing adalah 750°, 850°, 900° dan 950°C dan menghasilkan kristal serbuk berwarna hitam dengan berat masing-masing 1,64, 1,57, 1,60 dan 1,48 gram. Kristal yang dihasilkan dikarakterisasi menggunaknan X-Ray Diffraction (XRD), LCR Meter, dan SEM-EDS. Dengan meningkatnya suhu kalsinasi, aglomerat yang terbentuk menjadi lebih padat dan berkumpul menjadi aglomerat yang besar. Hal ini dapat menyebabkan perbedaan nilai konduktivitas. Spinel dengan nilai konduktivitas terendah dan tertinggi masing-masing adalah 2.01 x 10 -7 S/cm dan 1.28 x 10 -6 S/cm yang diperoleh pada suhu kalsinasi 750°C dan 850°C. Spinel elektrolit padat pada suhu kalsinasi terendah dan tertinggi adalah NaMn1,52Co0.48O4 dan NaMn1,51Co0.49O4.}, issn = {2597-9914}, pages = {13--17} doi = {10.14710/jksa.18.1.13-17}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18419} }
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