Multicomponent macroporous materials with a controlled architecture

• Published in: Journal of materials chemistry Vol. 19; no. 3; pp. 409 - 414
• Main Authors: SZAMOCKI, Rafael, MASSE, Pascal, RAVAINE, Serge, RAVAINE, Valerie, HEMPELMANN, Rolf, KUHN, Alexander
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 01.01.2009
• Subjects: Chemical Sciences; Chemistry; Condensed Matter; Cross-disciplinary physics: materials science; rheology; Electrochemistry; Electrodes: preparations and properties; Exact sciences and technology; General and physical chemistry; Material chemistry; Materials science; Materials synthesis; materials processing; Physics; Porous materials; granular materials; Soft Condensed Matter; Specific materials; Electrochemical properties; Porous materials; Template reaction; Electrode material; Surface composition; Sandwich structures; Defects; Hard-sphere model; Electrodes; Colloidal particles; Macroporous materials; Photonic crystal
• ISSN: 0959-9428; 1364-5501
• DOI: 10.1039/b811391b

We describe the elaboration of organized macroporous electrode surfaces with a complex composition using the hard sphere template procedure. In a first approach, different metals are subsequently generated in the template leading finally to a multicomponent porous material showing interesting electrochemical features combining the redox properties of the different metals. In a complementary second approach, alternating porous and compact metal layers are formed, with the compact layer being introduced on purpose as a defect layer allowing the controlled destruction of the sandwich-type architecture using a chemical or electrochemical trigger.