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Nitrogen‐Doped Nanoporous Graphenic Carbon: An Efficient Conducting Support for O 2 Cathode
Herein, we synthesize a nanoporous N‐doped graphenic carbon with high surface area and a higher graphenization/graphitic degree by further developing the metallothermic reduction of gaseous CO 2 by adding N 2 into the gas flow. The N‐doped nanoporous carbon is composed of both a highly porous graphe...
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| Published in: | ChemNanoMat : chemistry of nanomaterials for energy, biology and more biology and more, 2016-07, Vol.2 (7), p.692-697 |
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| Main Authors: | , , , , , , |
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| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c196t-20d9ff7effeaf0497169a83b9fbdce37c423b23b8c1ab8fe6ec41eb68d9c0e5e3 |
| container_end_page | 697 |
| container_issue | 7 |
| container_start_page | 692 |
| container_title | ChemNanoMat : chemistry of nanomaterials for energy, biology and more |
| container_volume | 2 |
| creator | Xing, Zhenyu Luo, Xiangyi Qi, Yitong Stickle, William F. Amine, Khalil Lu, Jun Ji, Xiulei |
| description | Herein, we synthesize a nanoporous N‐doped graphenic carbon with high surface area and a higher graphenization/graphitic degree by further developing the metallothermic reduction of gaseous CO
2
by adding N
2
into the gas flow. The N‐doped nanoporous carbon is composed of both a highly porous graphenic and non‐graphitic matrix and homogeneously dispersed ordered graphitic nanodomains, which constitute a very unique composite carbon structure. The resulting N‐doped graphenic carbon exhibits much more favorable reactivity as a carbon conducting support in the O
2
cathode of Li‐O
2
batteries, increasing the specific capacity of the GC electrode from 5300 to 9600 mAh g
−1
. The N‐doped carbon also exhibits lower overpotentials during initial cycling for the charging process as well as an enhanced cycling performance compared to the undoped carbon. These results demonstrate that N‐doping has a strong correlation with the enhanced performance of O
2
cathode of Li‐O
2
batteries. |
| doi_str_mv | 10.1002/cnma.201600112 |
| format | article |
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2
by adding N
2
into the gas flow. The N‐doped nanoporous carbon is composed of both a highly porous graphenic and non‐graphitic matrix and homogeneously dispersed ordered graphitic nanodomains, which constitute a very unique composite carbon structure. The resulting N‐doped graphenic carbon exhibits much more favorable reactivity as a carbon conducting support in the O
2
cathode of Li‐O
2
batteries, increasing the specific capacity of the GC electrode from 5300 to 9600 mAh g
−1
. The N‐doped carbon also exhibits lower overpotentials during initial cycling for the charging process as well as an enhanced cycling performance compared to the undoped carbon. These results demonstrate that N‐doping has a strong correlation with the enhanced performance of O
2
cathode of Li‐O
2
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2
by adding N
2
into the gas flow. The N‐doped nanoporous carbon is composed of both a highly porous graphenic and non‐graphitic matrix and homogeneously dispersed ordered graphitic nanodomains, which constitute a very unique composite carbon structure. The resulting N‐doped graphenic carbon exhibits much more favorable reactivity as a carbon conducting support in the O
2
cathode of Li‐O
2
batteries, increasing the specific capacity of the GC electrode from 5300 to 9600 mAh g
−1
. The N‐doped carbon also exhibits lower overpotentials during initial cycling for the charging process as well as an enhanced cycling performance compared to the undoped carbon. These results demonstrate that N‐doping has a strong correlation with the enhanced performance of O
2
cathode of Li‐O
2
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2
by adding N
2
into the gas flow. The N‐doped nanoporous carbon is composed of both a highly porous graphenic and non‐graphitic matrix and homogeneously dispersed ordered graphitic nanodomains, which constitute a very unique composite carbon structure. The resulting N‐doped graphenic carbon exhibits much more favorable reactivity as a carbon conducting support in the O
2
cathode of Li‐O
2
batteries, increasing the specific capacity of the GC electrode from 5300 to 9600 mAh g
−1
. The N‐doped carbon also exhibits lower overpotentials during initial cycling for the charging process as well as an enhanced cycling performance compared to the undoped carbon. These results demonstrate that N‐doping has a strong correlation with the enhanced performance of O
2
cathode of Li‐O
2
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| ispartof | ChemNanoMat : chemistry of nanomaterials for energy, biology and more, 2016-07, Vol.2 (7), p.692-697 |
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| source | Wiley |
| title | Nitrogen‐Doped Nanoporous Graphenic Carbon: An Efficient Conducting Support for O 2 Cathode |
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