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All Journal Jurnal Keramik dan Gelas Indonesia Jurnal Keramik dan Gelas Indonesia
Septian Adi Chandra
Lembaga Ilmu Pengetahuan Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Materials Science & Nanotechnology

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Synthesis and Characterization of Ca3Co4O9 Ceramic by using Sol-Gel Method Sigit Dwi Yudanto; Septian Adi Chandra; Rahadian Roberto; Dedi Pria Utama; Lusiana -; Wafi Ahdilah; Virginia Octa Herlina
Jurnal Keramik dan Gelas Indonesia Vol 30, No 1 (2021): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v30i1.6839

Abstract

We report the synthesis  of Ca3Co4O9  ceramics by the Sol-Gel method with citric acid as the chelating agent.   Calcium   nitrate   and   cobalt   nitrate   as precursors were weighed at an atomic ratio of Ca: Co = 3: 4. The process starts with gel preparation, followed by drying, calcination, and compaction process. The pellets were sintered at 820°C, 860°C, and 900°C for 6 hours in a furnace without flowing gas. The effect of sintering temperature on the formation of the Ca3Co4O9  phase was analyzed using an X-ray diffractometer.  The  Ca3Co4O9   phase has  formed in samples sintered at 820°C with the Co3O4  phase as an impurity. Based on the calculation, the crystallite size decreases with increasing sintering temperature
Synthesis and Characterization of Ca3Co4O9 Ceramic by using Sol-Gel Method Sigit Dwi Yudanto; Septian Adi Chandra; Rahadian Roberto; Dedi Pria Utama; Lusiana -; Wafi Ahdilah; Virginia Octa Herlina
Jurnal Keramik dan Gelas Indonesia Vol 30, No 1 (2021): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v30i1.6839

Abstract

We report the synthesis  of Ca3Co4O9  ceramics by the Sol-Gel method with citric acid as the chelating agent.   Calcium   nitrate   and   cobalt   nitrate   as precursors were weighed at an atomic ratio of Ca: Co = 3: 4. The process starts with gel preparation, followed by drying, calcination, and compaction process. The pellets were sintered at 820°C, 860°C, and 900°C for 6 hours in a furnace without flowing gas. The effect of sintering temperature on the formation of the Ca3Co4O9  phase was analyzed using an X-ray diffractometer.  The  Ca3Co4O9   phase has  formed in samples sintered at 820°C with the Co3O4  phase as an impurity. Based on the calculation, the crystallite size decreases with increasing sintering temperature
Co-Authors Dedi Pria Utama Lusiana - Rahadian Roberto Sigit Dwi Yudanto Virginia Octa Herlina Wafi Ahdilah