Pd0@Polyoxometalate Nanostructures as Green Electrocatalysts: Illustrative Example of Hydrogen Production

Materials

Rosa N. Biboum²  Bineta Keita²  Sylvain Franger¹  Charles P. Nanseu Njiki²  Guangjin Zhang⁵  Jie Zhang⁴  Tianbo Liu⁴  Israel-Martyr Mbomekalle³ 

[1] Laboratoire de Physico-Chimie de l'Etat Solide, ICMMO, UMR 8182, CNRS, Université Paris-Sud, Bâtiment 410, 91405 Orsay Cedex, France; E-Mail:;Groupe d’Electrochimie et de Photoélectrochime, Laboratoire de Chimie Physique, UMR 8000, CNRS, Université Paris-Sud 11, Bâtiment 350, 91405 Orsay Cedex, France; E-Mails:;Institut Lavoisier, UMR 8180, Université de Versailles St Quentin, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France; E-Mail:;Department of Chemistry, Lehigh University, Bethlehem, PA, 18015, USA; E-Mails:;Key Laboratory of Green Process Engineering, Institute of Process Engineering, Chinese Academy of Science, 100190, Beijing, China; E-Mail:

关键词: green chemistry;    palladium nanoparticles;    nanostructures;    vanadium-substituted polyoxotungstate;    self-assembly;    hydrogen evolution reaction;   

DOI  :  10.3390/ma3010741

来源: mdpi

【 摘 要 】

Green-chemistry type procedures were used to synthesize Pd⁰ nanostructures encapsulated by a vanadium-substituted Wells-Dawson-type polyoxometalate (Pd⁰@POM). The cyclic voltammogram run with the Pd⁰@POM-modified glassy carbon electrode shows well-defined waves, associated with Pd⁰ nanostructures and the V^V/V^IV redox couple. The Pd⁰@POM-modified electrode displayed remarkably reproducible cyclic voltammetry patterns. The hydrogen evolution reaction (HER) was selected as an illustrative example to test the electrocatalytic behavior of the electrode. The kinetic parameters of the HER show the high efficiency of the Pd⁰@POM-modified electrode. This is the first example of electrochemical characterization of a modified electrode based on a vanado-tungstic POM and Pd⁰ nanostructures.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.