Tuning Dynamic Structural Evolution of Bi<sub>24</sub>O<sub>31</sub>Cl<sub>10</sub> for Enhancing Piezo-Photocatalytic Nitrogen Oxidation to Nitrate.
basic_science · Level V
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- Record sourced from PubMed, PMID 38885183.
- Also identified by DOI 10.1021/acs.nanolett.4c01697.
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Abstract
Direct nitrogen oxidation into nitrate under ambient conditions presents a promising strategy for harsh and multistep industrial processes. However, the dynamic structural evolution of active sites in surface reactions constitutes a highly intricate endeavor and remains in its nascent stage. Here, we constructed a Bi<sub>24</sub>O<sub>31</sub>Cl<sub>10</sub> material with moiré superlattice structure (BCMS) for direct piezo-photocatalytic oxidation of nitrogen into nitrate. Excitingly, BCMS achieved excellent nitric acid production (15.44 mg g<sup>-1</sup> h<sup>-1</sup>) under light and pressure conditions. Detailed experimental results show that the unique structure extracts the local strain tensor from the constricting Bi-Bi bond and Bi-O bond for internal structural reconstruction, which promotes the formation of electron and reactive molecule vortexes to facilitate charge transfer as well as N<sub>2</sub> and O<sub>2</sub> adsorption. Ultimately, these initiatives strengthen electron exchange between the superoxide radical and nitrogen as well as the binding strength of multiple intermediates, which swayingly adjusts the reaction path and energy barriers.