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http://hdl.handle.net/10397/91929
Title: | Surfactant-free monodispersed Pd nanoparticles template for core-shell Pd@PdPt nanoparticles as electrocatalyst towards Methanol Oxidation Reaction (MOR) | Authors: | Zheng, F Kwong, TL Yung, KF |
Issue Date: | 2-Jan-2022 | Source: | Nanomaterials, Jan. 2022, v. 12, no. 2 , 260 | Abstract: | An eco-friendly two-step synthetic method for synthesizing Pd@PdPt/CNTs nanoparticles was introduced and studied for the methanol oxidation reaction. The Pd@PdPt alloy core-shell structure was synthesized by preparing a surfactant-free monodispersed Pd/CNTs precursor through the hydrolysis of tetrachloropalladate (II) ion ([PdCl₄ ] ²⁻ ) in the presence of carbon nanotubes (CNTs) and the subsequent hydrogen reduction and followed by a galvanic replacement reaction. This method opens up an eco-friendly, practical, and straightforward route for synthesizing monometallic or bimetallic nanoparticles with a clean surfactant-free electrocatalytic surface. It is quite promising for large-scale preparation. The Pd@PdPt/CNTs electrocatalyst demonstrated a high specific mass activity for methanol oxidation (400.2 mAmgᴘₜ⁻¹) and excellent stability towards direct methanol oxidation compared to its monometallic counterparts. | Keywords: | Core-shell PdPt alloy Nanoparticles Electrocatalysis Fuel cells Methanol oxidation |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Nanomaterials | ISSN: | 2079-4991 | DOI: | 10.3390/nano12020260 | Rights: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication Zheng, F.; Kwong, T.-L.; Yung, K.-F. Surfactant-Free Monodispersed Pd Nanoparticles Template for Core-Shell Pd@PdPt Nanoparticles as Electrocatalyst towards Methanol Oxidation Reaction (MOR). Nanomaterials 2022, 12, 260 is available at https://doi.org/10.3390/nano12020260 |
Appears in Collections: | Journal/Magazine Article |
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Zheng_Surfactant-free_Monodispersed_Nanoparticles.pdf | 6.13 MB | Adobe PDF | View/Open |
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