Data set for 'TiO2 photoanodes with exposed {0 1 0} facets grown by aerosol-assisted chemical vapor deposition of a titanium oxo/alkoxy cluster'

Data collection method:

This dataset includes raw data of characterization techniques employed. The following procedures and experimental methods have been employed (see manuscript for more information). - X-ray diffraction (XRD) patterns were collected from (10° to 80° (2θ) Bragg-Brentano with a Bruker AXS D8 Advance using Cu Kα (0.154 nm) radiation, 0.023° (2θ) steps and a total integration time of 960 s. - Raman spectroscopy was carried out on a Renishaw inVia system using a 532 nm diode-pumped solid-state laser (DPSS) manufactured by Cobolt. The laser beam was focused onto the sample using a 50x long distance objective. - Thermogravimetric analysis (TGA) was performed using a Setaram Setsys Evolution 16 TGA-DTA-DSC equipment for TiO2 powders (a few mg of TiO2 was scratched from the FTO). TGA of Ti7O4(OEt)20 and Ti(OEt)4 precursors were performed in a glove box under argon atmosphere using a PerkinElmer TGA 4000 apparatus - Time-resolved microwave conductivity measurements (TRMC): During measurements, a change in the microwave power reflected by the cavity upon excitation with a 3 ns pulse laser was monitored. For these experiments, measurements were performed using a wavelength tunable optical parametric oscillator (OPO) coupled to a diode-pumped Q-switched Nd:YAG 3-ns pulse laser at wavelengths of (350, 650 and 1200) nm. - Ultraviolet-visible (UV-Vis) absorption spectra were collected in an Agilent Cary 100 diffuse reflectance UV-Vis spectrophotometer. - Photoelectrochemical performance (PEC) performance of photoanodes was evaluated using a CompactStat. potentiostat (Ivium Technologies). Photocurrents were measured under simulated sunlight (AM 1.5G, 100 mWcm 2) from a filtered 300W Xenon lamp source (Lot Quantum Design) or under UV illumination (365 nm, 3.6 mWcm 2) from a ModuLight IM3412 LED light (Ivium Technologies). -PEC impedance spectroscopy (PEIS) was carried out under simulated sunlight (AM 1.5G, 100 mW cm-2) at the light open circuit potential (OCP) of the cell at a frequency range of (105–0.1) Hz with an amplitude of 10 mV. EIS measurements at different potentials were also performed under dark conditions to obtain Mott-Schottky plots. These measurements were carried out at a fixed frequency of (500 and 1000) Hz. - Incident photon-to-current efficiency (IPCE) measurements were calculated using the same Xe light source and a triple grating Czerny-Turner monochromator. - Oxygen (O2) measurements were conducted using a Pyroscience FireStingO2 fibre-optic oxygen meter combined with a TROXROB10 oxygen probe, together with a TDIP temperature sensor to give automatic compensation for minor fluctuation in the PEC cell temperature.

Technical details and requirements:

All data is included in .txt file. See data colection method for specification of software and equipment used.

Additional information:

This data has been organised using the following method: Data acquired using the same equipment is all in the same folder. Within the text file, raw data has been labeled as TiO2_Rose_800 ( sample that was annealed at 800 degrees celsius) and TiO2_Rose_AD ( as-deposited sample). For TRMC data, each text file includes time, signal and mobility values for a specific wavelength using different photon fluxes. Refer to manuscript for other specifications.