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题名: Functions in cooperation for enhanced oxygen reduction reaction: the independent roles of oxygen and nitrogen sites in metal-free nanocarbon and their functional synergy
作者: Wu, Kuang-Hsu;  Wang, Da-Wei;  Zong, Xu;  Zhang, Bingsen;  Liu, Yuefeng;  Gentle, Ian R.;  Su, Dang-Sheng
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.
发表日期: 2017-2-21
学科主题: Chemistry, Physical;  Energy & Fuels;  Materials Science, Multidisciplinary
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.
资助者: University of Queensland; Institute of Metal Research, Chinese Academy of Sciences [2015TW1GB0001, 2017PM0002]
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.
部门归属: [Wu, Kuang-Hsu;  Zhang, Bingsen;  Su, Dang-Sheng] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China;  [Wu, Kuang-Hsu;  Gentle, Ian R.] Univ Queensland, Sch Chem & Mol Biosci, Brisbane, Qld 4072, Australia;  [Wang, Da-Wei] Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia;  [Zong, Xu] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China;  [Liu, Yuefeng;  Su, Dang-Sheng] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
刊名: ROYAL SOC CHEMISTRY
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.imr.ac.cn/handle/321006/79188
ISSN号: 2050-7488
语种: 英语
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
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.

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