AI Article Synopsis
- The cation-exchange strategy has shown promise for synthesizing various inorganic nanostructures, particularly through the exchange of CdSe nanocrystals with Pd cations in different solvent environments.
- The cation exchange is effective in both aqueous and organic solvents and does not depend on the structure of the original CdSe crystals; however, it produces different forms—amorphous in water and cubic PdSe in organic solvents.
- The resultant PdSe product demonstrates superior electrocatalytic activity for ethanol oxidation in alkaline conditions compared to its amorphous form and a commercial Pd/C catalyst.
Article Abstract
The cation-exchange strategy has shown great potential to create a large variety of inorganic nanostructures. We herein report the cation-exchange reactions between CdSe nanocrystals and Pd cations in different solvent environments and identify three features not sufficiently noticed before: (i) the exchange between Cd and Pd cations could be fully achieved in both aqueous and organic solvents and is also independent of its parent CdSe crystal structures; (ii) the exchange between Cd and Pd cations in aqueous solvent results in amorphous Pd-Se exchanged products, while in organic solvent, it leads to a cubic PdSe phase; and (iii) the exchanged PdSe product exhibits better electrocatalysis for ethanol oxidation reaction in an alkaline medium relative to its amorphous counterpart and the commercial Pd/C catalyst.
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| http://dx.doi.org/10.1021/acs.inorgchem.3c00258 | DOI Listing |
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