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Nanomaterials 2019, 9(3), 375; https://doi.org/10.3390/nano9030375

Facile Synthesis of Pd Nanocubes with Assistant of Iodide and Investigation of Their Electrocatalytic Performances Towards Formic Acid Oxidation

1
School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
2
College of Life Sciences, Qingdao University, Qingdao 266071, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 7 January 2019 / Revised: 28 February 2019 / Accepted: 1 March 2019 / Published: 5 March 2019
(This article belongs to the Special Issue Nanocatalysts in Chemistry: Synthesis and Applications)
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Abstract

This article presents a facile, one-pot method using the aqueous phase for the synthesis of high-quality Pd nanocubes. In this study, Pd chloride was used as the precursor, sodium iodide as capping agent, and poly(vinylpyrrolidone) as surfactant and reducing agent. The effects of different halogens on the morphology of Pd nanocrystals were investigated. The results showed that, in this synthesis system, the selection and proper amount of sodium iodide was essential to the preparation of high-quality Pd nanocubes. When iodide was replaced by other halogens (such as bromide and chloride), Pd nanocrystals with cubic morphology could not be obtained. In addition, we have found that NaBH4 can be used to efficiently remove inorganic covers, such as iodide, from the surface of Pd nanoparticles as synthesized. The Pd nanoparticles obtained were employed as electro-catalysts for formic acid oxidation, and they exhibited excellent catalytic activity and good stability towards this reaction. View Full-Text
Keywords: Pd nanocubes; shape-controlled; iodide; electrocatalytic; formic acid oxidation Pd nanocubes; shape-controlled; iodide; electrocatalytic; formic acid oxidation
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Liu, X.; Li, Z.; Wang, K.; Zhou, L.; Zhao, X.; Jiang, W.; Li, Q.; Deng, Y. Facile Synthesis of Pd Nanocubes with Assistant of Iodide and Investigation of Their Electrocatalytic Performances Towards Formic Acid Oxidation. Nanomaterials 2019, 9, 375.

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