A new photoelectrochemical test cell and its use for a combined two-electrode and three-electrode approach to cell testing.
This paper describes the design, assembly, and operation of a photoelectrochemical (PEC) test cell that is relatively easy to construct and well suited for testing photoelectrode/counterelectrode combinations in a reproducible manner. The design of the cell permits measurements to be made in both two-electrode and three-electrode arrangements. The benefits of conducting both two-electrode and three-electrode measurements are illustrated using data obtained from the new test cell for a PEC system based on a polysulfide electrolyte, CdSe(0.8)Te(0.2) photoanode, and tungsten monocarbide counterelectrode. It is shown that linear sweep voltammograms measured in three-electrode mode can be used to describe current transients recorded in a two-electrode cell modified by the addition of a reference electrode.
Esposito
Daniel V
DV
Department of Chemical Engineering, Center for Catalytic Science and Technology, University of Delaware, Newark, Delaware 19716, USA.
Goue
Ouloide Y
OY
Dobson
Kevin D
KD
McCandless
Brian E
BE
Chen
Jingguang G
JG
Birkmire
Robert W
RW