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Oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are oxygen electrode reactions for charging and discharging processes of metal-air batteries respectively. Due to the slow reaction kinetics of ORR and OER, electrocatalysts are introduced to increase the rate of the reaction and to increase the performance and durability of metal-air batteries. Even though precious metal (Pt/C and Ir/RuO2) based electrocatalysts are showing better OER and ORR performance, their stability is not appreciable. Polymer based compounds are showing better OER and ORR performance with outstanding durability because of strongly bounded active sites. Hence, we coordinated manganese with thioamide polymer Mn-TUF and fabricated with various carbon supports. Among them, Mn-TUF/ketjen black (1:5) shows the electrochemical activities for charging performance with 1.56 V@ 10 mAcm-2 and discharging performance with 0.61 V for metal-air batteries which is showing better performance compared to the benchmark catalyst.

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Manganese-Thiourea Coordination Polymer for Air Battery Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Venkatesan Sivanesan,
  • Piyush Nandkishor Raut,
  • J. Florence Gnana Poovathy,
  • Pandian Ganesan

摘要

Oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are oxygen electrode reactions for charging and discharging processes of metal-air batteries respectively. Due to the slow reaction kinetics of ORR and OER, electrocatalysts are introduced to increase the rate of the reaction and to increase the performance and durability of metal-air batteries. Even though precious metal (Pt/C and Ir/RuO2) based electrocatalysts are showing better OER and ORR performance, their stability is not appreciable. Polymer based compounds are showing better OER and ORR performance with outstanding durability because of strongly bounded active sites. Hence, we coordinated manganese with thioamide polymer Mn-TUF and fabricated with various carbon supports. Among them, Mn-TUF/ketjen black (1:5) shows the electrochemical activities for charging performance with 1.56 V@ 10 mAcm-2 and discharging performance with 0.61 V for metal-air batteries which is showing better performance compared to the benchmark catalyst.