|
|
 |
| |
|
|
|
Redox-Induced Solid-Solid Phase Transformation of TCNQ Microcrystals into Semiconducting Ba[TCNQ]2 Microstructures. |
|
|
|
PP: 31-37 |
|
|
|
Author(s) |
|
|
|
S. I. Al-Saeedi,
K. A. Al-Farhan,
A. Nafady,
|
|
|
|
Abstract |
|
|
| Microstructures of semiconducting Ba[TCNQ]2 have been synthesized via redox-based TCNQ/Ba[TCNQ]2 solid-solid phase transformation that takes place via one-electron reduction of solid TCNQ microcrystals, attached to an electrode surface, in the presence of an aqueous Ba2+(aq) electrolyte solution. Voltammetric monitoring of the transformation process revealed that it is highly dependent on scan rate and Ba2+(aq) electrolyte concentration and occurs via a rate-determining nucleation/growth process. This process involves ingress of Ba2+(aq) cations into TCNQ•- crystal lattice at the triple phase TCNQ/TCNQ•-(s)│GC(s)│Ba2+(aq) electrolyte junction. SEM characterization of the morphology of the generated Ba[TCNQ]2 material showed the formation of microstructural sheets. |
|
|
|
|
|
|
|
