Electrocatalytically active hollow carbon nanospheres derived from ps-b-p4vp micelles
文献类型：期刊论文
| 作者 | Cao, Shubo1; Qu, Ting1; Li, Yayuan1; Zhang, Ang1; Xue, Longfei1; Zhao, Yongbin2; Zheng, Lirong3; Chen, Aihua1,4; Shui, Jianglan1 |
| 刊名 | Particle & particle systems characterization
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 35期号:4页码:9 |
| ISSN号 | 0934-0866 |
| 关键词 | Block copolymer Carbon hollow sphere N-doping Oxygen reduction reaction Pem fuel cell |
| DOI | 10.1002/ppsc.201700404 |
| 通讯作者 | Chen, aihua(chenaihua@buaa.edu.cn) ; Shui, jianglan(shuijianglan@buaa.edu.cn) |
| 英文摘要 | A facile method using polystyrene-b-poly(4-vinyl pyridine) (ps-b-p4vp) micelles is demonstrated to synthesize n/fen4-doped hollow carbon nanospheres (n/fen4-chns) with high electrocatalytic activity for oxygen reduction reactions (orrs). uniform spherical micelles with ps core and p4vp shell are prepared by exposing ps-b-p4vp in a mixture of ethanol/tetrahydrofuran. pyridinic n in shell cooperates with fe3+ to induce an in situ polymerization of pyrrole. tuning molecular composition of ps-b-p4vp can form hollow carbon spheres with controlled size down to sub-100 nm that remains challenge using traditional hard template strategies. n/fen4-chns possesses a series of desirable properties as electrode materials, including easy fabrication, high reproducibility, large surface area, and highly accessible porous surface. this electrocatalyst exhibits excellent orr activity (onset potential of 0.976 v vs reversible hydrogen electrode (rhe) and half-wave potential of 0.852 v vs rhe), higher than that of commercial pt/c (20 wt%) in an alkaline media, and shows a good activity in an acidic media as well. in addition to its higher stability and methanol tolerance than pt/c in both alkaline and acidic electrolytes, highly competitive single cell performance is achieved in a proton exchange membrane fuel cell. this work provides a general approach to preparing functionalized small hollow nanospheres based on self-assembly of block copolymers. |
| WOS关键词 | OXYGEN-REDUCTION REACTION ; HIGH-PERFORMANCE ELECTROCATALYSTS ; ELECTROLYTE FUEL-CELLS ; EFFICIENT ELECTROCATALYSTS ; CATALYSTS ; NITROGEN ; IRON ; GRAPHENE ; POLYMER ; POLYANILINE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000430470700006 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177585 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Chen, Aihua; Shui, Jianglan |
| 作者单位 | 1.Beihang Univ, Sch Mat Sci & Engn, Xueyuan Rd 37, Beijing 100191, Peoples R China 2.Shandong Oubo New Mat Co Ltd, Dongying Port Econ Dev Zone, Laiwu 257088, Shandong, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 4.Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Xueyuan Rd 37, Beijing 100191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Shubo,Qu, Ting,Li, Yayuan,et al. Electrocatalytically active hollow carbon nanospheres derived from ps-b-p4vp micelles[J]. Particle & particle systems characterization,2018,35(4):9. |
| APA | Cao, Shubo.,Qu, Ting.,Li, Yayuan.,Zhang, Ang.,Xue, Longfei.,...&Shui, Jianglan.(2018).Electrocatalytically active hollow carbon nanospheres derived from ps-b-p4vp micelles.Particle & particle systems characterization,35(4),9. |
| MLA | Cao, Shubo,et al."Electrocatalytically active hollow carbon nanospheres derived from ps-b-p4vp micelles".Particle & particle systems characterization 35.4(2018):9. |
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来源：高能物理研究所
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