Photo-deposition of cobalt-phosphate group modified hematite for efficient water splitting

Functional principle of the synergistic effect of co-loaded Co-Pi and FeOOH on Fe2O3 photoanodes for photoelectrochemical water oxidation

“…Fe2O3 and Co-Pi were synthesized using the procedure outlined in one of our previous reports [21]. A Fe2O3 sample was used for the hydrothermal synthesis of h-FeOOH/Fe2O3, and the reaction time was optimized to 1 h. Conversely, d-FeOOH was coated on Fe2O3 via dip-coating, as described in the literature [31].…”

“…The use of OER catalysts for PEC water splitting has been demonstrated to ameliorate this problem by passivating the photoanode surface and/or accelerate the OER kinetics [17][18][19]. Most Earth-abundant OER catalyst materials comprise transition metal compounds, such as cobalt phosphate (Co-Pi) [20,21], nickel borate, Ni or Co oxides [22,23], Ni or Fe oxyhydroxides [24][25][26], and their complex oxides/oxyhydroxides [27,28]. Currently, research efforts are focused on achieving synergistic effects using dual catalysts.…”

Preparation, characterization, and morphology insight of ZnO nanodisk–TiO2‐coated SWCNT thin film composites for catalytic sensor application

“…Other studies used ZnO/TiO 2 nanocomposite‐based photocells sensitized with organic molecules coumarin 343 and rose bengal for solar cell applications 28 . Finally, they compared the efficiency of photovoltaic activity of single‐semiconductor ZnO and TiO 2 solar cells with that of hybrids by considering studies in Baraton and Bouhjar et al 29,30 Previously, Jothi Ramalingam et al studied the gallium and other heteroatoms such as sulfur and nitrogen incorporated with zinc oxide nanodisk fabrication for thin film applications 31,32 . Another study considered heteroatom such as nitrogen‐doped TiO 2 powder and sulfur with fluorine‐doped ZnO prepared using a simple ball milling process and characterized their optical property after dopant addition in ZnO matrix 33 .…”

Pseudobrookite Fe2TiO5 Nanoparticles Loaded with Earth-Abundant Nanosized NiO and Co3O4 Cocatalysts for Photocatalytic O2 Evolution via Solar Water Splitting

“…62 This trend was also observed for hematite containing cobalt phosphate cocatalyst. 63 In the presence of water, photoholes trapped in the cocatalysts would be promptly consumed to drive the water oxidation reaction. 63 The intriguing high potentiality of Co 3 O 4 to be employed as a water oxidation cocatalyst for Fe 2 TiO 5 can be elucidated by the assessment of its optical and structural characteristics.…”

“…63 In the presence of water, photoholes trapped in the cocatalysts would be promptly consumed to drive the water oxidation reaction. 63 The intriguing high potentiality of Co 3 O 4 to be employed as a water oxidation cocatalyst for Fe 2 TiO 5 can be elucidated by the assessment of its optical and structural characteristics. The energy diagrams displayed in Figure 8 and Figure S14 were designed on the basis of our results of PEC measurements, optical absorption spectra, and valence band XPS spectra (Figure S15), associated with data from the literature.…”