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Updated: Jan 11, 2026
10:51
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
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Selective urea electrosynthesis from CO2 and NO enabled on low-coordinated Ru1-O3 motifs
Xiang Tan1, Fengyu Zhang1, Jia Yu1
1College of Science, Hebei North University, Zhangjiakou 075000, Hebei, China. 15731110206@163.com.
Chemical Communications (Cambridge, England)
|November 17, 2025
Summary
This study introduces a novel catalyst, ruthenium single atoms on amorphous zinc oxide (Ru1/a-ZnO), for efficient electrochemical urea synthesis from CO2 and NO emissions. The catalyst achieves high urea production rates and selectivity, offering a sustainable solution for waste conversion.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Electrochemical urea synthesis from CO2 and NO (EUCN) offers a sustainable route for converting harmful emissions into valuable urea.
- Developing efficient catalysts is crucial for ambient condition EUCN.
Purpose of the Study:
- To design and investigate ruthenium single atoms on amorphous zinc oxide (Ru1/a-ZnO) as a catalyst for EUCN.
- To elucidate the catalytic mechanism and identify key active sites.
Main Methods:
- Synthesis of Ru single atoms on amorphous ZnO (Ru1/a-ZnO).
- Electrochemical evaluation in a membrane electrode assembly (MEA) electrolyzer.
- Density functional theory (DFT) calculations for mechanistic studies.
Main Results:
- Ru1/a-ZnO demonstrated a high urea yield rate of 54.9 mmol h-1 g-1 and a faradaic efficiency of 38.1%.
- Low-coordinated Ru1-O3 motifs were identified as the active sites.
- The catalyst preferentially activated NO and lowered the energy barriers for C-N coupling and protonation.
Conclusions:
- Ru1/a-ZnO is a highly efficient catalyst for electrochemical urea synthesis from CO2 and NO.
- The unique Ru1-O3 active sites are key to the enhanced catalytic performance by optimizing reaction pathways and suppressing side reactions.
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