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Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis
The development of a metal-free carbon based electrocatalyst for the oxygen reduction reaction (ORR) is an essential issue for energy conversion systems. Herein, we suggest a tune-up solution plasma (SP) synthesis based on a simple one-step and cost-effective method to fabricate nitrogen self-doped...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9088181/ https://www.ncbi.nlm.nih.gov/pubmed/35547914 http://dx.doi.org/10.1039/c8ra06614k |
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author | Lee, SeungHyo Saito, Nagahiro |
author_facet | Lee, SeungHyo Saito, Nagahiro |
author_sort | Lee, SeungHyo |
collection | PubMed |
description | The development of a metal-free carbon based electrocatalyst for the oxygen reduction reaction (ORR) is an essential issue for energy conversion systems. Herein, we suggest a tune-up solution plasma (SP) synthesis based on a simple one-step and cost-effective method to fabricate nitrogen self-doped graphitic carbon nanosheets (NGS) as an electrocatalyst. This novel strategy using a low-pass filter circuit provides plasma stability and energy control during discharge in pyridine, determining the graphitic structure of nanocarbons doped with nitrogen. Notably, NGS have a relatively high surface area (621 m(2) g(−1)), and high contents of nitrogen bonded as pyridinic-N and pyrrolic-N of 55.5 and 21.3%, respectively. As an efficient metal-free electrocatalyst, NGS exhibit a high onset potential (−0.18 V vs. Ag/AgCl) and a 3.8 transferred electron pathway for ORR in alkaline solution, as well as better long-term durability (4% current decrease after 10 000 s of operation) than commercial Pt/C (22% current drop). From this point of view, the nitrogen self-doped graphitic carbon nanosheet material synthesized using the tune-up SP system is a promising catalyst for the ORR, as an alternative to a Pt catalyst for application in energy conversion devices. |
format | Online Article Text |
id | pubmed-9088181 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90881812022-05-10 Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis Lee, SeungHyo Saito, Nagahiro RSC Adv Chemistry The development of a metal-free carbon based electrocatalyst for the oxygen reduction reaction (ORR) is an essential issue for energy conversion systems. Herein, we suggest a tune-up solution plasma (SP) synthesis based on a simple one-step and cost-effective method to fabricate nitrogen self-doped graphitic carbon nanosheets (NGS) as an electrocatalyst. This novel strategy using a low-pass filter circuit provides plasma stability and energy control during discharge in pyridine, determining the graphitic structure of nanocarbons doped with nitrogen. Notably, NGS have a relatively high surface area (621 m(2) g(−1)), and high contents of nitrogen bonded as pyridinic-N and pyrrolic-N of 55.5 and 21.3%, respectively. As an efficient metal-free electrocatalyst, NGS exhibit a high onset potential (−0.18 V vs. Ag/AgCl) and a 3.8 transferred electron pathway for ORR in alkaline solution, as well as better long-term durability (4% current decrease after 10 000 s of operation) than commercial Pt/C (22% current drop). From this point of view, the nitrogen self-doped graphitic carbon nanosheet material synthesized using the tune-up SP system is a promising catalyst for the ORR, as an alternative to a Pt catalyst for application in energy conversion devices. The Royal Society of Chemistry 2018-10-16 /pmc/articles/PMC9088181/ /pubmed/35547914 http://dx.doi.org/10.1039/c8ra06614k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Lee, SeungHyo Saito, Nagahiro Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
title | Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
title_full | Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
title_fullStr | Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
title_full_unstemmed | Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
title_short | Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
title_sort | enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9088181/ https://www.ncbi.nlm.nih.gov/pubmed/35547914 http://dx.doi.org/10.1039/c8ra06614k |
work_keys_str_mv | AT leeseunghyo enhancementofnitrogenselfdopednanocarbonselectrocatalystviatuneupsolutionplasmasynthesis AT saitonagahiro enhancementofnitrogenselfdopednanocarbonselectrocatalystviatuneupsolutionplasmasynthesis |