Journal
CHEMICAL PAPERS
Volume 73, Issue 4, Pages 937-942Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s11696-018-0632-2
Keywords
Electrochemical; Graphite foil; Counter electrode; Multi-podal; Anatase; Photocurrent density
Categories
Ask authors/readers for more resources
Cost effective graphite foil (GF) were used as counter electrode (CE) to fabricate multi-podal TiO2 nasnotube array (MTNA) via electrochemical anodization route. Moreover, the MTNA fabricated while using GF as CE were greater in length than that obtained while using PF as CE. Correspondingly, the changed dimensional parameters in such anodized MTNA prepared photo-anode resulted appreciable enhancement in photocurrent density from 18 to 21.8mA/cm(2) under 1 sun illumination (100mW/cm(2)). The use of platinum foil as counter electrode shows feeble degree of deterioration despite its appreciable nature of inertness. The corresponding amount of platinum lost by the CE is being added to the electrolyte which in turn contaminates the MTNA in the working electrode. As such nanotubes with purposeful composition are not being produced on using platinum foil as CE. Replacing platinum foil with graphite one, the purposeful composition in nanotubes is possible despite GF shows deterioration as well, as graphite (carbon) gets evaporated on annealing at 500 degrees C to obtain a desired anatase phase which is not possible in case of platinum contamination.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available