Microemulsion-Based One-Step Electrochemical Fabrication of Mesoporous Catalysts

Catalysts

Albert Serr๠ Elisa Vallés¹ 

[1]Grup d’Electrodeposició de Capes Primes i Nanoestructures (Ge-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona Martí i Franquès 1, E-08028 Barcelona, Catalonia, Spain

关键词: mesoporous;    electrodeposition;    microemulsion;    heterogeneous catalysis;    soft-templating;    alcohol electrooxidation;    water decontamination;   

DOI  :  10.3390/catal8090395

来源: DOAJ

【 摘 要 】

Electrochemical technology has been proposed as an alternative or complementary method to classical inorganic synthesis for the fabrication of effective metallic solid catalysts. Microemulsion-based electrodeposition is a novel, fast, and one-step procedure to obtain mesoporous catalysts with extraordinarily effective areas, which can be used in heterogeneous catalysis for degradation of pollutants and clean energy production. The fabrication process involves conducting microemulsions containing ionic species (dissolved in aqueous solutions) as precursors of the metallic catalysts. The presence of nanometric droplets of organic or ionic-liquid components in the microemulsion defines the mesoporosity of the catalysts during a one-step electrodeposition process. This method also allows the fabrication of metal catalysts as supported mesoporous films or mesoporous nanowires with very high effective areas. Additionally, reactants have excellent accessibility to the overall surface of the catalysts. The different catalysts fabricated with the help of this technology have been tested for competitive degradation of organic pollutants and anodes' materials for fuel cell devices.

【 授权许可】

Unknown