Citation: Li-Hua HU, Xiao WANG, Kai-Ran HU, Chen CHEN, Zhi-Hao XU, Wei XU. Direct synthesis of dimethyl carbonate from CO₂ and methanol over ZIF-67/CeO₂[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(7): 1315-1324. doi: 10.11862/CJIC.2023.091 shu

Direct synthesis of dimethyl carbonate from CO₂ and methanol over ZIF-67/CeO₂

Li-Hua HU ^{1, 2,,} ,
Xiao WANG ¹ ,
Kai-Ran HU ¹ ,
Chen CHEN ¹ ,
Zhi-Hao XU ¹ ,
Wei XU ^{1, 3,,}

1.
School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China
2.
Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China
3.
Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China

Corresponding author: Li-Hua HU, hulihua@njit.edu.cn Wei XU, xuwei@njit.edu.cn
Received Date: 24 October 2022
Revised Date: 8 May 2023

Figures(7)

An efficient heterogeneous catalyst ZIF-67/CeO₂ composites were synthesized by a precipitation method, and developed for the direct synthesis of dimethyl carbonate (DMC) from CO₂ and methanol. The physicochemical properties of the ZIF-67/CeO₂ catalysts were investigated by X-ray diffraction, N₂ adsorption - desorption, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The results demonstrated that the introduction of ZIF-67 causes more oxygen vacancies to be generated onto CeO₂. Among the ZIF-67/CeO₂ catalysts, 0.3-ZIF-67/CeO₂ (0.3 was the molar ratio of Co and Ce) showed the best catalytic performance due to its high specific surface area, mesoporous structure, and high CO₂ adsorption capacity. Yield of 3.79 mmol_DMC·g_cat-1 was achieved at a temperature of 140 ℃ and a pressure of 4.5 MPa for 4 h.
- CeO₂,
- ZIFs,
- CO₂,
- dimethyl carbonate,
- heterogeneous catalyst
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Direct synthesis of dimethyl carbonate from CO2 and methanol over ZIF-67/CeO2

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Direct synthesis of dimethyl carbonate from CO₂ and methanol over ZIF-67/CeO₂