Institutional Repository of Chinese Acad Sci, Inst Solid State Phys， Hefei 230031, Anhui, Peoples R China
| Controlled Fabrication of Hierarchically Structured Nitrogen-Doped Carbon Nanotubes as a Highly Active Bifunctional Oxygen Electrocatalyst | |
Zhao, Xianglong1,2; Li, Feng2; Wang, Ruining3 ; Seo, Jeong-Min2; Choi, Hyun-Jung2; Jung, Sun-Min2; Mahmood, Javeed2; Jeon, In-Yup2; Baek, Jong-Beom2
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| 2017-03-03 | |
| 发表期刊 | ADVANCED FUNCTIONAL MATERIALS
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| 摘要 | Hierarchically structured nitrogen-doped carbon nanotube (NCNT) composites, with copper (Cu) nanoparticles embedded uniformly within the nanotube walls and cobalt oxide (CoxOy) nanoparticles decorated on the nanotube surfaces, are fabricated via a combinational process. This process involves the growth of Cu embedded CNTs by low- and high-temperature chemical vapor deposition, post-treatment with ammonia for nitrogen doping of these CNTs, precipitation-assisted separation of NCNTs from cobalt nitrate aqueous solution, and finally thermal annealing for CoxOy decoration. Theoretical calculations show that interaction of Cu nanoparticles with CNT walls can effectively decrease the work function of CNT surfaces and improve adsorption of hydroxyl ions onto the CNT surfaces. Thus, the activities of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) are significantly enhanced. Because of this benefit, further nitrogen doping, and synergistic coupling between CoxOy and NCNTs, Cu@NCNT/CoxOy composites exhibit ORR activity comparable to that of commercial Pt/C catalysts and high OER activity (outperforming that of IrO2 catalysts). More importantly, the composites display superior long-term stability for both ORR and OER. This simple but general synthesis protocol can be extended to design and synthesis of other metal/metal oxide systems for fabrication of high-performance carbon-based electrocatalysts with multifunctional catalytic activities. |
| 文章类型 | Article |
| 关键词 | Anodic Aluminum Oxide Carbon Nanotubes Chemical Vapor Deposition Oxygen Evolution Reaction Oxygen Reduction Reaction |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1002/adfm.201605717 |
| 关键词[WOS] | CHEMICAL-VAPOR-DEPOSITION ; REDUCTION REACTION ; CO3O4 NANOCRYSTALS ; AIR BATTERIES ; FUEL-CELLS ; GRAPHENE ; EVOLUTION ; CATALYST ; NANOCONTAINERS ; PERFORMANCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | Creative Research Initiative (CRI)(2014R1A3A2069102) ; Creative Research Initiative (CRI)(2014R1A3A2069102) ; Creative Research Initiative (CRI)(2014R1A3A2069102) ; Creative Research Initiative (CRI)(2014R1A3A2069102) ; BK21 PLUS(10Z20130011057) ; BK21 PLUS(10Z20130011057) ; BK21 PLUS(10Z20130011057) ; BK21 PLUS(10Z20130011057) ; Science Research Center (SRC) programs through the National Research Foundation (NRF) of Korea(2016R1A5A1009405) ; Science Research Center (SRC) programs through the National Research Foundation (NRF) of Korea(2016R1A5A1009405) ; Science Research Center (SRC) programs through the National Research Foundation (NRF) of Korea(2016R1A5A1009405) ; Science Research Center (SRC) programs through the National Research Foundation (NRF) of Korea(2016R1A5A1009405) ; National Natural Science Foundation of China(11547170) ; National Natural Science Foundation of China(11547170) ; National Natural Science Foundation of China(11547170) ; National Natural Science Foundation of China(11547170) |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000395409200017 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/32877 |
| 专题 | 中科院固体物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, Hefei 230031, Peoples R China 2.Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Ctr Dimens Controllable Organ Frameworks, UNIST 50, Ulsan 44919, South Korea 3.Hebei Univ, Hebei Key Lab Opt Elect Informat & Mat, Coll Phys Sci & Technol, Baoding 071002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xianglong,Li, Feng,Wang, Ruining,et al. Controlled Fabrication of Hierarchically Structured Nitrogen-Doped Carbon Nanotubes as a Highly Active Bifunctional Oxygen Electrocatalyst[J]. ADVANCED FUNCTIONAL MATERIALS,2017,27(9):1-9. |
| APA | Zhao, Xianglong.,Li, Feng.,Wang, Ruining.,Seo, Jeong-Min.,Choi, Hyun-Jung.,...&Baek, Jong-Beom.(2017).Controlled Fabrication of Hierarchically Structured Nitrogen-Doped Carbon Nanotubes as a Highly Active Bifunctional Oxygen Electrocatalyst.ADVANCED FUNCTIONAL MATERIALS,27(9),1-9. |
| MLA | Zhao, Xianglong,et al."Controlled Fabrication of Hierarchically Structured Nitrogen-Doped Carbon Nanotubes as a Highly Active Bifunctional Oxygen Electrocatalyst".ADVANCED FUNCTIONAL MATERIALS 27.9(2017):1-9. |
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