光催化
化学
钴
漫反射红外傅里叶变换
X射线光电子能谱
可见光谱
环加成
光谱学
傅里叶变换红外光谱
红外光谱学
扫描电子显微镜
光化学
带隙
氢
催化作用
无机化学
化学工程
材料科学
有机化学
光电子学
量子力学
工程类
复合材料
物理
作者
Lamia A. Siddig,Reem H. Alzard,Abdalla S. Abdelhamid,Tholkappiyan Ramachandran,Ha L. Nguyen,Alejandro Pérez Paz,Ahmed Alzamly
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-09-12
卷期号:62 (38): 15550-15564
被引量:17
标识
DOI:10.1021/acs.inorgchem.3c02051
摘要
A novel cobalt hydrogen-bonded organic framework (Co-HOF, C24H14CoN4O8) was synthesized from a mixed linker, that is, 2,5-pyridinedicarboxylic acid (PDC) and 2,2'-bipyridyl (BPY) linkers and cobalt ion through a simple, one-pot, low-cost, and scalable solvothermal method. The Co-HOF was fully characterized using several analytical and spectroscopic techniques including single-crystal X-ray diffraction, diffuse reflectance spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray, and X-ray photoelectron spectroscopy. The Co-HOF exhibits high thermal and chemical stabilities compared to previously reported HOF materials. Moreover, Co-HOF shows excellent photocatalytic activity under visible light irradiation due to its narrow band gap of 2.05 eV. The cycloaddition reaction of CO2 to variable epoxides was investigated to evaluate the photocatalytic performance of Co-HOF under visible light radiation and was found to produce the corresponding cyclic carbonates in yields up to 99.9%.
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