Semiconducting 2D Triazine-Cored Covalent Organic Frameworks with Unsubstituted Olefin Linkages
文献类型：期刊论文
| 作者 | Wei, SC; Zhang, F; Zhang, WB; Qiang, PR; Yu, KJ; Fu, XB; Wu, DQ; Bi, S; Zhang, F |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2019 |
| 卷号 | 141期号:36页码:14272-14279 |
| 关键词 | CARBON NITRIDE SEMICONDUCTORS ROOM-TEMPERATURE H-2 EVOLUTION CRYSTALLINE PHOTOELECTRODE POLYMERS FILMS |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.9b06219 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Establishing an sp(2)-carbon-bonding pattern is one of the efficient accesses to various organic semiconducting materials. However, the less-reversible carbon-carbon bond formation makes it still challenging to spatially construct a well-defined organic framework with pi-extended two-dimensional (2D) structure through solution process. Here, a Knoevenagel condensation approach to synthesize two new 2D covalent organic frameworks (COFs) connected by unsubstituted carbon-carbon double bond linkages through activating the methyl carbons of a 2,4,6-trimethyl-1,3,5-triazine monomer is presented. The resulting se-carbon-linked triazine-cored 2D sheets are vertically stacked into high-crystalline honeycomb-like structures, endowing this kind of COF with extended pi-delocalization, tunable energy levels, as well as high surface areas, regular open channels, and chemical stabilities. On the other hand, their microfibrillar morphologies allow for the facile manipulation of thin films as photoelectrodes without additive. Accordingly, such kinds of COF-based photoelectrodes exhibit photocurrents up to similar to 45 mu A cm(-2) at 0.2 V vs RHE as well as rapid charge transfer rates, in comparison with imine-linked COF-based photoelectrodes. In addition, both COFs are applicable for conducting photocatalytic hydrogen generation from water splitting by visible-light irradiation. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32198]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China; 2.Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China; 3.Chinese Acad Sci, Dept Molten Salt Chem & Engn, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, SC,Zhang, F,Zhang, WB,et al. Semiconducting 2D Triazine-Cored Covalent Organic Frameworks with Unsubstituted Olefin Linkages[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2019,141(36):14272-14279. |
| APA | Wei, SC.,Zhang, F.,Zhang, WB.,Qiang, PR.,Yu, KJ.,...&Zhang, F.(2019).Semiconducting 2D Triazine-Cored Covalent Organic Frameworks with Unsubstituted Olefin Linkages.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,141(36),14272-14279. |
| MLA | Wei, SC,et al."Semiconducting 2D Triazine-Cored Covalent Organic Frameworks with Unsubstituted Olefin Linkages".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 141.36(2019):14272-14279. |
入库方式： OAI收割
来源：上海应用物理研究所
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