Substantial Cyano-Substituted Fully sp2-Carbon-Linked Framework: Metal-Free Approach and Visible-Light-Driven Hydrogen Evolution
Bi S, Lan ZA, Paasch S, Zhang W, He Y, Zhang C, Liu F, Wu D, Zhuang X, Brunner E, Wang X, Zhang F (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 27
Article Number: 1703146
Journal Issue: 39
Abstract
Polymeric semiconductors are emerging as a kind of competitive photocatalysts for hydrogen evolution due to their well-tunable structures, versatile functionalization, and low-cost processibility. In this work, a series of conjugated porous polymers with substantial cyano-substituted fully sp2-carbon frameworks are efficiently synthesized by using electron-deficient tricyanomesitylene as a key building block to promote an organic base-catalyzed Knoevenagel condensation with various aldehyde-substituted arenes. The resulting porous polymers feature donor-acceptor structures with π-extended conjugation, rendering them with distinct semiconducting properties. They possess hierarchically porous structures, nanoscale morphologies, and intriguing wettability. These promising physical characters, finely tailorable by varying the arene units, are essentially relevant to the abundant cynao substituents over the whole frameworks. The as-prepared porous polymers exhibit excellent visible-light-driven photocatalytic activity for water-splitting hydrogen evolution with apparent quantum yield up to 2.0% at 420 nm or 1.9% at 470 nm, among the highest values yet reported for porous polymer-based photocatalysts, also representing the first example of such kinds of catalysts formed through a metal-free-catalyzed carbon–carbon coupling reaction.
Involved external institutions
Shanghai Jiao Tong University / 上海交通大学
China (CN)
Xi’an Jiaotong-Liverpool University (XJTLU)
China (CN)
Fuzhou University (FZU)
China (CN)
Technische Universität Dresden
Germany (DE)
China (CN)
Xi’an Jiaotong-Liverpool University (XJTLU)
China (CN)
Fuzhou University (FZU)
China (CN)
Technische Universität Dresden
Germany (DE)
How to cite
APA:
Bi, S., Lan, Z.-A., Paasch, S., Zhang, W., He, Y., Zhang, C.,... Zhang, F. (2017). Substantial Cyano-Substituted Fully sp2-Carbon-Linked Framework: Metal-Free Approach and Visible-Light-Driven Hydrogen Evolution. Advanced Functional Materials, 27(39). https://doi.org/10.1002/adfm.201703146
MLA:
Bi, Shuai, et al. "Substantial Cyano-Substituted Fully sp2-Carbon-Linked Framework: Metal-Free Approach and Visible-Light-Driven Hydrogen Evolution." Advanced Functional Materials 27.39 (2017).
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