Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure
The electrochemical oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) and on CNT (carbon nanotube) cathode with a palladium catalyst, palladium-coated CNT (PC-CNT), and palladium-filled CNT (PF-CNT) are assessed in an ether-based electrolyte solution in order to fabricate a lithium...
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| Format: | Article |
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MDPI AG
2019-01-01
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| Series: | Batteries |
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| Online Access: | https://www.mdpi.com/2313-0105/5/1/15 |
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| author | Neha Chawla Amir Chamaani Meer Safa Marcus Herndon Bilal El-Zahab |
| author_facet | Neha Chawla Amir Chamaani Meer Safa Marcus Herndon Bilal El-Zahab |
| author_sort | Neha Chawla |
| collection | DOAJ |
| description | The electrochemical oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) and on CNT (carbon nanotube) cathode with a palladium catalyst, palladium-coated CNT (PC-CNT), and palladium-filled CNT (PF-CNT) are assessed in an ether-based electrolyte solution in order to fabricate a lithium-oxygen battery with high specific energy. The electrochemical properties of the CNT cathodes were studied using electrochemical impedance spectroscopy (EIS). Palladium-filled cathodes displayed better performance as compared to the palladium-coated ones due to the shielding of the catalysts. The mechanism of the improvement was associated to the reduction of the rate of resistances growth in the batteries, especially the ionic resistances in the electrolyte and electrodes. The scanning electron microscopy (SEM) and spectroscopy were used to analyze the products of the reaction that were adsorbed on the electrode surface of the battery, which was fabricated using palladium-coated and palladium-filled CNTs as cathodes and an ether-based electrolyte. |
| first_indexed | 2024-04-13T23:02:17Z |
| format | Article |
| id | doaj.art-d8870d38dee54d799f8f6449fa2384dc |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-04-13T23:02:17Z |
| publishDate | 2019-01-01 |
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| series | Batteries |
| spelling | doaj.art-d8870d38dee54d799f8f6449fa2384dc2022-12-22T02:25:47ZengMDPI AGBatteries2313-01052019-01-01511510.3390/batteries5010015batteries5010015Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery FailureNeha Chawla0Amir Chamaani1Meer Safa2Marcus Herndon3Bilal El-Zahab4Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USADepartment of Mechanical and Industrial Engineering, The University of Illinois at Chicago, Chicago, IL 60607, USADepartment of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USADepartment of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USADepartment of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USAThe electrochemical oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) and on CNT (carbon nanotube) cathode with a palladium catalyst, palladium-coated CNT (PC-CNT), and palladium-filled CNT (PF-CNT) are assessed in an ether-based electrolyte solution in order to fabricate a lithium-oxygen battery with high specific energy. The electrochemical properties of the CNT cathodes were studied using electrochemical impedance spectroscopy (EIS). Palladium-filled cathodes displayed better performance as compared to the palladium-coated ones due to the shielding of the catalysts. The mechanism of the improvement was associated to the reduction of the rate of resistances growth in the batteries, especially the ionic resistances in the electrolyte and electrodes. The scanning electron microscopy (SEM) and spectroscopy were used to analyze the products of the reaction that were adsorbed on the electrode surface of the battery, which was fabricated using palladium-coated and palladium-filled CNTs as cathodes and an ether-based electrolyte.https://www.mdpi.com/2313-0105/5/1/15EISFourier-Transform Infrared Spectroscopycyclingcatalystcarbon nanotubesLi-O2 battery |
| spellingShingle | Neha Chawla Amir Chamaani Meer Safa Marcus Herndon Bilal El-Zahab Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure Batteries EIS Fourier-Transform Infrared Spectroscopy cycling catalyst carbon nanotubes Li-O2 battery |
| title | Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure |
| title_full | Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure |
| title_fullStr | Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure |
| title_full_unstemmed | Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure |
| title_short | Mechanism of Ionic Impedance Growth for Palladium-Containing CNT Electrodes in Lithium-Oxygen Battery Electrodes and its Contribution to Battery Failure |
| title_sort | mechanism of ionic impedance growth for palladium containing cnt electrodes in lithium oxygen battery electrodes and its contribution to battery failure |
| topic | EIS Fourier-Transform Infrared Spectroscopy cycling catalyst carbon nanotubes Li-O2 battery |
| url | https://www.mdpi.com/2313-0105/5/1/15 |
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