DOI: 10.1016/j.scib.2021.05.001
论文题名: Self-assembly of anthraquinone covalent organic frameworks as 1D superstructures for highly efficient CO2 electroreduction to CH4
作者: Liu M. ; Wang Y.-R. ; Ding H.-M. ; Lu M. ; Gao G.-K. ; Dong L.-Z. ; Li Q. ; Chen Y. ; Li S.-L. ; Lan Y.-Q.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期: 16 起始页码: 1659
结束页码: 1668
语种: 英语
中文关键词: 1D superstructures
; CO2 electroreduction
; Covalent organic frameworks
; Hollow tubes
; Nanofibers
英文关键词: Aromatic compounds
; Condensation reactions
; Copper compounds
; Electrocatalysts
; Electrolytic reduction
; Iron compounds
; Ketones
; Morphology
; Nanofibers
; Nanosheets
; Self assembly
; Transition metals
; 1d superstructure
; CH$-4$
; CO$-2$/ reduction
; CO2 electroreduction
; Covalent organic frameworks
; Electro reduction
; Hollow tube
; OH$+-$
; Reduction reaction
; Tunable morphologies
; Carbon dioxide
英文摘要: The design of selective and efficient covalent organic frameworks (COFs) based electrocatalysts with tunable morphology for efficient CO2 reduction reaction (CO2RR) to CH4 is highly desirable. Here, two kinds of anthraquinone-based COFs (i.e., AAn-COF and OH-AAn-COF) with tunable 1D superstructures (e.g., nanofibers (NF) and hollow tubes (HT)) have been produced via Schiff-base condensation reaction. Interestingly, a rarely reported nanosheet-based self-template mechanism and a nanosheet-crimping mechanism have been demonstrated for the production of COF-based nanofibers and hollow tubes, respectively. Besides, the obtained COF-based superstructures can be post-modified with transition metals for efficient CO2RR. Specifically, AAn-COF-Cu (NF) and OH-AAn-COF-Cu (HT) exhibit superior faradaic-efficiency with CH4 (FECH4) of 77% (−128.1 mA cm−2, −0.9 V) and 61% (−99.5 mA cm−2, −1.0 V) in a flow-cell, respectively. Noteworthy, the achieved FECH4 of AAn-COF-Cu (NF) (77%) the is highest one among reported crystalline COFs. This work provides a general methodology in exploring morphology-controlled COFs for electrocatalytic CO2RR. © 2021 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170335
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China; School of Chemistry, South China Normal University, Guangzhou, 510006, China
Recommended Citation:
Liu M.,Wang Y.-R.,Ding H.-M.,et al. Self-assembly of anthraquinone covalent organic frameworks as 1D superstructures for highly efficient CO2 electroreduction to CH4[J]. Science Bulletin,2021-01-01,66(16)