文献类型：期刊文献

英文题名：A graphyne-like porous carbon-rich network synthesized via alkyne metathesis

作者：Wu, Bin[1,2];Li, Manrong[2];Xiao, Shuning[2];Qu, Yangkun[2];Qiu, Xiaoyan[2];Liu, Taifeng[2];Tian, Fenghui[3];Li, Hexing[1,2];Xiao, Shengxiong[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Shanghai Normal Univ, Educ Minist, Int Joint Lab Resource Chem, Key Lab Resource Chem, Shanghai 200234, Peoples R China;[3]Qingdao Univ, Growing Base Natl Key Lab, Inst Computat Sci & Engn, Qingdao, Peoples R China

年份：2017

卷号：9

期号：33

起止页码：11939

外文期刊名：NANOSCALE

收录：;EI(收录号：20173504102491);WOS:【SCI-EXPANDED(收录号:WOS:000408435400014)】；

基金：This work is supported by the National Natural Science Foundation of China (No. 21237003 and 21473113), the Program for the Professor of Special Appointment (Eastern Scholar) at the Shanghai Institutions of Higher Learning (No. 2013-57), the "Shuguang Program" supported by the Shanghai Education Development Foundation and the Shanghai Municipal Education Commission (No. 14SG40), the Program of Shanghai Academic/Technology Research Leader (No. 16XD1402700), and the Program for Changjiang Scholars and Innovative Research Team in University (IRT_16R49).

语种：英文

外文关键词：Carbon - Hydrocarbons - Porous materials - Gas adsorption - Pore size

摘要：The synthesis of graphyne has been considered challenging, especially when it comes to adopting new topologies and obtaining thinner layers. Herein, we report the synthesis and characterization of a graphyne-like porous carbon-rich network via alkyne metathesis reactions, which resulted in a sp(2)/sp hybridized 2D thin film structure with a layer to layer distance of 0.37 nm. This graphyne-like porous carbon-rich network is an n-type semiconductor with a low work function of 3.9 eV and a reduction potential of -0.54 V vs. SHE, which could be applied as an excellent reducing agent for metal electroless deposition. In addition, this material has a narrow pore size distribution of 2 to 4 nm, a high surface area of 675 m(2) g(-1) and a large pore volume of 0.795 cm(3) g(-1) favoring gas adsorption. It shows the selective absorption of CO2 over N-2 owing to the strong affinity between CO2 and the carbon-carbon triple bond.