Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 145, Issue 47, Pages 25910-25916Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.3c10784
Keywords
-
Categories
Ask authors/readers for more resources
This study develops a new catalytic system that utilizes a graphite mesh covered with a CuBi2O4 coating and a mixture of N-2 and CO2 as the nebulizing gas to synthesize urea in water microdroplets. The reaction converts greenhouse gases into a value-added product in an ecofriendly process.
Water (H2O) microdroplets are sprayed onto a graphite mesh covered with a CuBi2O4 coating using a 1:1 mixture of N-2 and CO2 as the nebulizing gas. The resulting microdroplets contain urea [CO(NH2)(2)] as detected by both mass spectrometry and C-13 nuclear magnetic resonance. This gas-liquid-solid heterogeneous catalytic system synthesizes urea in one step on the 0.1 ms time scale. The conversion rate reaches 2.7 mmol g(-1) h(-1) at 25 degrees C and 12.3 mmol g(-1) h(-1) at 65 degrees C, with no external voltage applied. Water microdroplets serve as the hydrogen source and the electron transfer medium for N-2 and CO2 in contact with CuBi2O4. Water-gas and water-solid contact electrification are speculated to drive the reaction process. This strategy couples N-2 fixation and CO2 utilization in an ecofriendly process to produce urea, converting a greenhouse gas into a value-added product.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available