Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction
We introduce a metal-free, high-surface-area N-containing carbon material prepared via single-step laser-induced carbonization of polyimide films as an electrocatalyst for oxygen evolution reaction (OER), which obviates the need for a loading substrate. Our inexpensive and scalable one-step fabricat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-10-01
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| Series: | Carbon Trends |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667056922000773 |
| _version_ | 1811201795424256000 |
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| author | Mamta Devi Chetna Madan Aditi Halder Swati Sharma |
| author_facet | Mamta Devi Chetna Madan Aditi Halder Swati Sharma |
| author_sort | Mamta Devi |
| collection | DOAJ |
| description | We introduce a metal-free, high-surface-area N-containing carbon material prepared via single-step laser-induced carbonization of polyimide films as an electrocatalyst for oxygen evolution reaction (OER), which obviates the need for a loading substrate. Our inexpensive and scalable one-step fabrication process yields porous carbon films with a high atomic ratio of pyridinic and pyrrolic N functional groups. The material is activated by inducing additional oxygen-rich functional groups, resulting in more electrochemically active sites and less charge transfer resistance for superior electrocatalytic performance. The activated laser-carbon exhibits an excellent catalytic activity towards OER with an overpotential of 470 mV at a current density of 10 mA cm−2, which is much lower compared to other metal-free electrocatalysts. This multifunctional carbon material has an immense potential for the fabrication of lightweight water electrolyzers as well as in the designing of electrode for flexible solid-state metal-air batteries. |
| first_indexed | 2024-04-12T02:26:37Z |
| format | Article |
| id | doaj.art-80e4f80099ce43a8b6c79c67aa5bfde1 |
| institution | Directory Open Access Journal |
| issn | 2667-0569 |
| language | English |
| last_indexed | 2024-04-12T02:26:37Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Trends |
| spelling | doaj.art-80e4f80099ce43a8b6c79c67aa5bfde12022-12-22T03:51:56ZengElsevierCarbon Trends2667-05692022-10-019100221Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reactionMamta Devi0Chetna Madan1Aditi Halder2Swati Sharma3School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh 175075, IndiaSchool of Chemical Sciences, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh 175075, IndiaSchool of Chemical Sciences, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh 175075, IndiaSchool of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh 175075, India; Corresponding author.We introduce a metal-free, high-surface-area N-containing carbon material prepared via single-step laser-induced carbonization of polyimide films as an electrocatalyst for oxygen evolution reaction (OER), which obviates the need for a loading substrate. Our inexpensive and scalable one-step fabrication process yields porous carbon films with a high atomic ratio of pyridinic and pyrrolic N functional groups. The material is activated by inducing additional oxygen-rich functional groups, resulting in more electrochemically active sites and less charge transfer resistance for superior electrocatalytic performance. The activated laser-carbon exhibits an excellent catalytic activity towards OER with an overpotential of 470 mV at a current density of 10 mA cm−2, which is much lower compared to other metal-free electrocatalysts. This multifunctional carbon material has an immense potential for the fabrication of lightweight water electrolyzers as well as in the designing of electrode for flexible solid-state metal-air batteries.http://www.sciencedirect.com/science/article/pii/S2667056922000773Laser-induced carbonizationSelf-catalyzing electrodeElectrochemical characterizationOxygen evolution reaction (OER)Metal-free electrocatalyst |
| spellingShingle | Mamta Devi Chetna Madan Aditi Halder Swati Sharma Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction Carbon Trends Laser-induced carbonization Self-catalyzing electrode Electrochemical characterization Oxygen evolution reaction (OER) Metal-free electrocatalyst |
| title | Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction |
| title_full | Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction |
| title_fullStr | Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction |
| title_full_unstemmed | Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction |
| title_short | Laser-derived porous carbon as a metal-free electrocatalyst for oxygen evolution reaction |
| title_sort | laser derived porous carbon as a metal free electrocatalyst for oxygen evolution reaction |
| topic | Laser-induced carbonization Self-catalyzing electrode Electrochemical characterization Oxygen evolution reaction (OER) Metal-free electrocatalyst |
| url | http://www.sciencedirect.com/science/article/pii/S2667056922000773 |
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