光催化
共价有机骨架
Atom(片上系统)
催化作用
材料科学
傅里叶变换红外光谱
共价键
化学
纳米技术
分析化学(期刊)
光学
物理
有机化学
计算机科学
嵌入式系统
作者
Mingpu Kou,Wei Liu,Yongye Wang,Jindi Huang,Yanli Chen,Ying Zhou,Yi Chen,Minzhi Ma,Kai Lei,Haiquan Xie,Po Keung Wong,Liqun Ye
标识
DOI:10.1016/j.apcatb.2021.120146
摘要
The application of covalent organic framework (COF) for photocatalytic CO2 conversion has received more and more attention. However, it is still a challenge for photocatalytic conversion of CO2 with atmosphere concentration to high added value hydrocarbons products (CxHy) such as CH4 and C2H4. Here, integrating the advantages of micropore structure and single atom catalysis, we introduced single- atom MoN2 sites into COF to construct Mo-COF materials. The aberration-COrrected high-angle annular dark-field scanning transmission electron microscopy (HAADF- STEM) confirms that Mo single atom on COF. Mo-COF can reduce CO2 to CxHy under visible light with a selectivity of 42.92 % and C2H4 product was found for the the first time. In-situ fourier transform infrared spectrometer (In situ FT-IR) and theoretical calculation showed that the introduction of single-atom MoN2 sites is the key to improving the catalysis performance. It also provides a new idea for converting CO2 into high added value CxHy products.
科研通智能强力驱动
Strongly Powered by AbleSci AI