Control on Pt-containing ordered honeycomb mesoporous nanostructures via self-assembly of block copolymer
文献类型：期刊论文
| 作者 | Wang, Zhida2; Yang, Yi1,2; Mo, Jiamei2; Zhao, Chenglin1,2; Yan, Changfeng1,2 |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2023-01-05 |
| 卷号 | 656页码:8 |
| 关键词 | Self -assembly Block copolymer Mesoporous Honeycomb Nanostructure control Electrocatalyst |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2022.130392 |
| 通讯作者 | Wang, Zhida(wangzd@ms.giec.ac.cn) ; Yan, Changfeng(yancf@ms.giec.ac.cn) |
| 英文摘要 | Control on the mesoporous nanostructures with uniform-sized and well-arranged mesopores can provide enhanced surface areas and mechanical properties, which are preferred for the development of energies, sensors, and electro-optical devices. Herein, Pt-containing ordered honeycomb (Pt/OHC) nanocomposites with regularly arranged mesopores were synthesized via self-assembly of polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymers (BCPs), following mechanism study of morphological evolution, concept of structural control, potential in catalyst application, and exploration of various metals. Particularly, it was found that the self -assembly of BCP directed the ordered arrangement of the mesopores, whereas the P4VP blocks incorporated Pt and precisely positioned it on the pore walls and on the outer surface of the honeycomb matrix. Mono-to multi-layered Pt/OHCs could be generated by controlling the thicknesses of the self-assembled pristine tem-plates, and the average diameters of the mesopores could be varied from 12 nm to 40 nm by tuning the PS:P4VP block mass ratios. The obtained Pt/OHC demonstrated promising application as electrocatalysts in hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR), for which an overpotential of 39 mV at current density of 10 mA/cm2 (eta 10) and a high half wave potential (E1/2) of 0.87 V (vs. RHE), respectively, were observed in acidic media. In addition, the strategy developed here could be expanded for other metals, such as Au and Ir, to be incorporated into the ordered honeycomb matrix, providing a robust method to synthesize metal -containing mesoporous nanomaterials. With this work, we aim to offer an insight of designing ordered mesoporous nanocomposites, a concept of control over the mesoporous nanostructures, and a potential for their application in electrocatalysts. |
| WOS关键词 | HIGH-PERFORMANCE ; ENERGY-STORAGE ; CARBON ; NANOPARTICLES ; PYROLYSIS ; EFFICIENT ; EVOLUTION ; HOLLOW ; RESIN |
| 资助项目 | National Natural Science Foundation of China[52276222] ; STS Regional Key Project of Chinese Academy of Sciences[KFJ-STS-QYZD-2021-02-003] ; Guangzhou Key Area R&D Program of Science and Technology Plan Project[202103040002] ; Guangzhou Key Area R&D Program of Science and Technology Plan Project[202206050003] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21070605] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000877609100005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; STS Regional Key Project of Chinese Academy of Sciences ; Guangzhou Key Area R&D Program of Science and Technology Plan Project ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.giec.ac.cn/handle/344007/37865]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Wang, Zhida; Yan, Changfeng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhida,Yang, Yi,Mo, Jiamei,et al. Control on Pt-containing ordered honeycomb mesoporous nanostructures via self-assembly of block copolymer[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2023,656:8. |
| APA | Wang, Zhida,Yang, Yi,Mo, Jiamei,Zhao, Chenglin,&Yan, Changfeng.(2023).Control on Pt-containing ordered honeycomb mesoporous nanostructures via self-assembly of block copolymer.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,656,8. |
| MLA | Wang, Zhida,et al."Control on Pt-containing ordered honeycomb mesoporous nanostructures via self-assembly of block copolymer".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 656(2023):8. |
入库方式： OAI收割
来源：广州能源研究所
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