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Title: Manganese oxide nanorods decorated table sugar derived carbon as efficient bifunctional catalyst in rechargeable Zn-air batteries
Authors: Marsudi, M.A.
Ma, Y. 
Prakoso, B.
Hutani, J.J.
Wibowo, A.
Zong, Y.
Liu, Z.
Sumboja, A.
Keywords: Electrocatalyst
Manganese oxide
Zn-air battery
Issue Date: 2020
Publisher: MDPI AG
Citation: Marsudi, M.A., Ma, Y., Prakoso, B., Hutani, J.J., Wibowo, A., Zong, Y., Liu, Z., Sumboja, A. (2020). Manganese oxide nanorods decorated table sugar derived carbon as efficient bifunctional catalyst in rechargeable Zn-air batteries. Catalysts 10 (1) : 64. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Despite its commercial success as a primary battery, Zn-air battery is struggling to sustain a reasonable cycling performance mainly because of the lack of robust bifunctional electrocatalysts which smoothen the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) taking place on its air-cathode. Composites of carbon/manganese oxide have emerged as a potential solution with high catalytic performance; however, the use of non-renewable carbon sources with tedious and non-scalable synthetic methods notably compromised the merit of being low cost. In this work, high quantity of carbon is produced from renewable source of readily available table sugar by a facile room temperature dehydration process, on which manganese oxide nanorods are grown to yield an electrocatalyst of MnOx@AC-S with high oxygen bifunctional catalytic activities. A Zn-air battery with the MnOx@AC-S composite catalyst in its air-cathode delivers a peak power density of 116 mW cm?2 and relatively stable cycling performance over 215 discharge and charge cycles. With decent performance and high synthetic yield achieved for the MnOx@AC-S catalyst form a renewable source, this research sheds light on the advancement of low-cost yet efficient electrocatalyst for the industrialization of rechargeable Zn-air battery. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Source Title: Catalysts
ISSN: 2073-4344
DOI: 10.3390/catal10010064
Rights: Attribution 4.0 International
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