Effects of the particle size of BaMnO3 powders on the electrochemical performance of supercapacitor electrodes

• Published in: Materials letters Vol. 319; p. 132258
• Main Authors: Tanapongpisit, Nantawat, Wongprasod, Suchunya, Laohana, Peerawat, Kim, Sangmo, Butburee, Teera, Meevasana, Worawat, Maensiri, Santi, Bark, Chung Wung, Saenrang, Wittawat
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.07.2022; Elsevier BV
• Subjects: Ball milling; Capacitance; Electrochemical analysis; Electrochemical supercapacitor; Electrodes; Materials science; Particle size; Perovskite metal oxides; Perovskites; Size dependence; Supercapacitors; Electrochemical supercapacitor; Size dependence; Perovskite metal oxides
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2022.132258

•High-crystalline BaMnO3 particles were synthesized by simple solid-state reaction.•Performance of nano-sized BaMnO3 electrode is better before cycle.•Micro-sized BaMnO3 electrode capacity increased about 1300% after 3000 cycles. The high-crystalline perovskite oxide BaMnO3 particles were synthesized by a simple solid-state reaction, followed by high-energy ball milling to study the particle size dependence for supercapacitor electrodes. The specific capacitance of nano-sized BaMnO3 is approximately seven times higher than that of micro-sized BaMnO3. The micro-sized BaMnO3 have a rice-like nanostructure transition that enhances its specific capacitance up to 1300% and tends to increase after 3000 cycles. This suggests a cost-effective and simple technique for high performance perovskite-based supercapacitor electrodes by achieving the desired performance.