PHOTOELECTROCHEMICAL SPLITTING OF WATER AT NANOCRYSTALLINE N-FE2O3 THIN-FILM ELECTRODES
作者： Shahed U. M. Khan , Jun Akikusa
DOI: 10.1021/JP990066K
关键词:
摘要: Semiconducting nanocrystalline thin films of n-Fe2O3 were synthesized by a spray−pyrolytic method. These used for the photoelectrochemical splitting water to hydrogen and oxygen gases. The rates at these thin-film electrodes found depend on spray time, substrate temperature, solvent composition in solution, concentration solution. maximum photocurrent density 3.7 mA cm-2 0.7 V/saturated calomel electrode (SCE) was obtained film using optimum condition temperature 350 °C, time 60 s, solution 0.11 M FeCl3 100% ethanol. band gap energy this 2.05 eV. flatband potential −0.74 V/SCE apparent donor 2.2 × 1020 cm-3 from Mott−Schottky plots AC frequency 1000 Hz. conditions gave rise total conversion effi...
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