Highly efficient electrocatalysis for the fixation of CO2 into cyclic carbonates with carbon sphere-loaded copper nanoparticles cathode material
| Autor: | Yue Hou, Huan Wang, Si-Li Shan, Jing-Jie Zhang, Jia-Xing Lu, Yi Shi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
General Chemical Engineering
Nanoparticle chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst 01 natural sciences Copper Cycloaddition 0104 chemical sciences Analytical Chemistry law.invention chemistry.chemical_compound Chemical engineering chemistry law Specific surface area Propylene carbonate Electrochemistry Calcination Propylene oxide 0210 nano-technology |
| Zdroj: | Journal of Electroanalytical Chemistry. 882:114962 |
| ISSN: | 1572-6657 |
| DOI: | 10.1016/j.jelechem.2020.114962 |
| Popis: | A series of C sphere-loaded high-dispersion Cu nanoparticles (Cu/CS) was designed and prepared as cathode material for the electrocatalytic cycloaddition of CO2 and epoxides to form cyclic carbonates at room temperature and normal pressure. Materials were prepared using a simple one-pot method combined with calcination under N2 atmosphere. A series of characterisation was conducted to determine the material characteristics, such as composition, content, morphology and structure. Results showed that Cu nanoparticles were dispersed evenly on the C sphere with high specific surface area (> 395 m2/g) and large pore volume (0.2 m3/g). Among them, the Cu/CS-II cathode material with a yield of 94.7% possessed the best catalytic effect for CO2 and propylene oxide to form propylene carbonate. The materials were found to have good universality by expanding different substrates. Moreover, the reuse of the cathode material without a remarkable reduction in yield indicated that the material had good stability. |
| Databáze: | OpenAIRE |
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