Titanium Carbide (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>) MXene Ornamented with Palladium Nanoparticles for Electrochemical CO Oxidation
<p></p><div> <p>Titanium carbide (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>) MXene possesses various unique physicochemical and catalytic properties. However, the electrochemical CO oxidation performance is not yet addressed experimentally....
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2023
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| Summary: | <p></p><div> <p>Titanium carbide (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>) MXene possesses various unique physicochemical and catalytic properties. However, the electrochemical CO oxidation performance is not yet addressed experimentally. Herein, Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> (T<sub>X</sub>=OH, O, and F) ordered and exfoliated two-dimensional nanosheets ornamented with semi-spherical palladium nanoparticles (2.5 Wt. %) with an average diameter of (10±1 nm) (denoted as Pd/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>) is rationally designed for the electrochemical CO oxidation. The fabrication process is based on the selective chemical etching of Ti<sub>3</sub>AlC<sub>2</sub> and delamination under sonication to form Ti<sub>3</sub>C<sub>2</sub>Tx nanosheets that are used as a substrate and reducing agent for supporting in situ growth of Pd nanoparticles via impregnation with Pd salt. Interestingly, Pd-free Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> displayed inferior CO oxidation activity, while Pd/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> enhanced the CO oxidation activity substantially. This is attributed to the combination of outstanding physicochemical properties of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and the catalytic merits of Pd nanoparticles.</p> </div><p></p><h2>Other Information</h2> <p> Published in: Electroanalysis<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1002/elan.202100269" target="_blank">http://dx.doi.org/10.1002/elan.202100269</a></p> |
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