Functions in cooperation for enhanced oxygen reduction reaction: the independent roles of oxygen and nitrogen sites in metal-free nanocarbon and their functional synergy
文献类型：期刊论文
| 作者 | Wu, Kuang-Hsu; Wang, Da-Wei; Zong, Xu; Zhang, Bingsen; Liu, Yuefeng; Gentle, Ian R.; Su, Dang-Sheng; Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.; Wang, DW (reprint author), Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia.; Su, DS (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China. |
| 刊名 | ROYAL SOC CHEMISTRY
 |
| 出版日期 | 2017-02-21 |
| 卷号 | 5期号:7页码:3239-3248 |
| ISSN号 | 2050-7488 |
| 英文摘要 | Heteroatom-doped nanocarbons are known to behave differently in the oxygen reduction reaction (ORR) in aqueous systems. In the present study, we reveal the dissimilar roles of oxygen and nitrogen sites in nanocarbons and show that the different functions can jointly promote the ORR in cooperation when appropriately combined. The oxygen sites in general could efficiently facilitate both the HO2- generation and the reduction at high overpotential, while the active nitrogen sites could activate the ORR with a lower energy requirement and simultaneously reduce both O-2 and HO2- at low overpotential. A further study to integrate the functionalities in a single nanocarbon reveals the oxidation-resistant nature of the active nitrogen functional group, a chemical basis for the reactivity.; Heteroatom-doped nanocarbons are known to behave differently in the oxygen reduction reaction (ORR) in aqueous systems. In the present study, we reveal the dissimilar roles of oxygen and nitrogen sites in nanocarbons and show that the different functions can jointly promote the ORR in cooperation when appropriately combined. The oxygen sites in general could efficiently facilitate both the HO2- generation and the reduction at high overpotential, while the active nitrogen sites could activate the ORR with a lower energy requirement and simultaneously reduce both O-2 and HO2- at low overpotential. A further study to integrate the functionalities in a single nanocarbon reveals the oxidation-resistant nature of the active nitrogen functional group, a chemical basis for the reactivity. |
| 学科主题 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | University of Queensland; Institute of Metal Research, Chinese Academy of Sciences [2015TW1GB0001, 2017PM0002] |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79188]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.; Wang, DW (reprint author), Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia.; Su, DS (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wu, Kuang-Hsu,Wang, Da-Wei,Zong, Xu,et al. Functions in cooperation for enhanced oxygen reduction reaction: the independent roles of oxygen and nitrogen sites in metal-free nanocarbon and their functional synergy[J]. ROYAL SOC CHEMISTRY,2017,5(7):3239-3248. |
| APA | Wu, Kuang-Hsu.,Wang, Da-Wei.,Zong, Xu.,Zhang, Bingsen.,Liu, Yuefeng.,...&Su, DS .(2017).Functions in cooperation for enhanced oxygen reduction reaction: the independent roles of oxygen and nitrogen sites in metal-free nanocarbon and their functional synergy.ROYAL SOC CHEMISTRY,5(7),3239-3248. |
| MLA | Wu, Kuang-Hsu,et al."Functions in cooperation for enhanced oxygen reduction reaction: the independent roles of oxygen and nitrogen sites in metal-free nanocarbon and their functional synergy".ROYAL SOC CHEMISTRY 5.7(2017):3239-3248. |
入库方式： OAI收割
来源：金属研究所
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