Optical detection of electron transport in thin films of prussian blue

被引：6

作者：

Ochs, S

Grabner, EW

Mohler, E

机构：

[1] UNIV FRANKFURT,INST PHYS & THEORET CHEM,D-60439 FRANKFURT,GERMANY

[2] UNIV FRANKFURT,INST PHYS,D-60054 FRANKFURT,GERMANY

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1996年 / 100卷 / 05期

关键词：

diffusion; electrochemistry;

D O I：

10.1002/bbpc.19961000510

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Potassium-iron(III)-hexacyanoferrate(II) (Prussian blue) is deposited electrochemically as a thin film (thickness: 300 nm) on a Pt-disk substrate electrode. The relative change in optical reflectivity of this electrode is detected time-resolved upon galvanostatic reduction of Prussian blue to Everitt's salt and subsequent reoxidation. Considering different transport properties of electrons and cations within the film, the experimental result is fitted by numerical modelling. The specific diffusion coefficient for electrons is deduced as 5 . 10(-11) cm(2)/s.

引用

页码：594 / 598

页数：5

共 17 条

[1] ELECTROCHROMISM IN THE MIXED-VALENCE HEXACYANIDES .1. VOLTAMMETRIC AND SPECTRAL STUDIES OF THE OXIDATION AND REDUCTION OF THIN-FILMS OF PRUSSIAN BLUE [J].