Abstract
Ammonia (NH3) synthesis from electrochemical conversion of nitrate (NO3−) can efficiently reduce the emission of nitrogen oxide. However, the complex reaction pathways of nitrate reduction to NH3 are not fully revealed by previous reports. Here we point out that Ag/Cu2O hybrids prepared with the assistance of oxygen vacancies (OV) have very competitive activity (selectivity: 96.85%, Faradaic efficiency: 96.45%) for NH3 synthesis from NO3−. Detailed characterizations demonstrate that this high performance of Ag/Cu2O hybrids derives from the strong interface interactions owing to the formation of strong AgCu bonds. Both online differential electrochemical mass spectrometry (DEMS) and density functional theory (DFT) calculations demonstrate that the strong interface interactions between Ag nanoparticles (NPs) and Cu2O can efficiently boost the adsorption of NO3− and facilitate the formation of *N intermediates in NH3 synthesis.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
