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Insight into the Evolution of Ordered Mesoporous sp(2) Carbonaceous Material Derived from Self-Assembly of a Block Copolymer

文献类型：期刊论文

作者Yang, Yi1,2,3; Wang, Zhida2,3; Liang, Zheng2; Shen, Lisha2,3; Guo, Changqing2,3; Shi, Yan2,3; Tan, Hongyi2,3; Lu, Zhuoxin1,2,3; Yan, Changfeng1,2,3
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2022-09-16
页码11
关键词diblock copolymer N-doped ordered mesoporous carbon formation mechanism internal chemical state pseudo-atomic-scale platinum
ISSN号1944-8244
DOI10.1021/acsami.2c10356
通讯作者Wang, Zhida(wangzd@ms.giec.ac.cn) ; Yan, Changfeng(yancf@ms.giec.ac.cn)
英文摘要Block-copolymer-derived ordered mesoporous car -bon (OMC) materials have great potential in many applications, such as adsorption, catalysis, and energy conversions; however, their formation process and the kinetic mechanism remain unclear. Herein, a N-doped OMC (N-OMC) with sp2-bonded C atoms is developed via self-assembly of the polystyrene-block-poly(4-vinyl pyridine) block copolymer. By correlating the external morphol-ogies with the internal chemical states, the formation process can be concluded as follows: (1) pore evolution via polystyrene domain degradation and (2) regularization and graphitization of the residual carbon via the removal of sp3 C atoms. In addition, the thickness of the N-OMC shows a power function relationship with the spin-coating rate, and the N content can be incredibly increased up to 26.34 at. % in an NH3 carbonization atmosphere. With the as-prepared N-OMC as the support for loading of the pseudo-atomic-scale Pt (Pt/N-OMC), a high electrochemical active surface area value of 99.64 m2 & BULL;g-1 and a half-wave potential (E1/2) of 0.850 VRHE are achieved, showing great potential in developing single-atom electrocatalysts.
WOS关键词TEMPLATED SYNTHESIS ; RAMAN-SPECTROSCOPY ; ACTIVE-SITES ; OXYGEN ; GRAPHENE ; CATALYST ; CARBONS ; MORPHOLOGY ; PYROLYSIS ; POROSITY
资助项目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Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000861772100001
出版者AMER CHEMICAL SOC
资助机构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/344007/37319]  
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, CAS Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & Dev, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Hydrogen Prod & Utilizat Grp, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Yi,Wang, Zhida,Liang, Zheng,et al. Insight into the Evolution of Ordered Mesoporous sp(2) Carbonaceous Material Derived from Self-Assembly of a Block Copolymer[J]. ACS APPLIED MATERIALS & INTERFACES,2022:11.
APA Yang, Yi.,Wang, Zhida.,Liang, Zheng.,Shen, Lisha.,Guo, Changqing.,...&Yan, Changfeng.(2022).Insight into the Evolution of Ordered Mesoporous sp(2) Carbonaceous Material Derived from Self-Assembly of a Block Copolymer.ACS APPLIED MATERIALS & INTERFACES,11.
MLA Yang, Yi,et al."Insight into the Evolution of Ordered Mesoporous sp(2) Carbonaceous Material Derived from Self-Assembly of a Block Copolymer".ACS APPLIED MATERIALS & INTERFACES (2022):11.

入库方式： OAI收割

来源：广州能源研究所

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