Flexible metallization of electrospun nanofibers: Dramatically enhanced solid-state electrochemistry and electrochemiluminescence of the immobilized tris(2,2'-bipyridyl)ruthenium(II).

Three protocols were performed to incorporate Au nanoparticles (AuNPs) into electrospun nanofibers of poly(acrylonitrile-co-acrylic acid) (PAN-co-PAA), namely, (1) direct electrospinning AuNPs/PAN-co-PAA/DMF colloid soln., (2) in situ redn. of the chelated Au ions in the electrospun Au salt/PAN-co-PAA nanofibers by NaBH4, and (3) further electroless-plating of the in situ reduced AuNPs-loaded nanofibers. The morphologies of the AuNPs-loaded nanofibers were characterized by the field emission SEM (FE-SEM) and the TEM. As prepd. AuNPs-loaded nanofibers were used to immobilize tris(2,2'-bipyridyl)ruthenium(II) [Ru(bpy)3]2+, to form the ECL sensors. The dramatically enhanced solid-state electrochem. and ECL performance could be feasibly achieved by the incorporation of AuNPs into the nanofibers. Also, the enhanced effect depended on the AuNPs assembly method, which resulted in the different electroconductive and catalytic abilities. [on SciFinder(R)]

Références

Titre
Flexible metallization of electrospun nanofibers: Dramatically enhanced solid-state electrochemistry and electrochemiluminescence of the immobilized tris(2,2'-bipyridyl)ruthenium(II).
Type de publication
Article de revue
Année de publication
2013
Revue
Sensors Actuators, B Chem.
Volume
181
Pagination
159–165
ISSN
0925-4005
Soumis le 12 avril 2018