2D Co-incorporated hydroxyapatite nanoarchitecture as a potential efficient oxygen evolution cocatalyst for boosting photoelectrochemical water splitting on Fe2O3 photoanode

Chelation-mediated in-situ formation of ultrathin cobalt (oxy)hydroxides on hematite photoanode towards enhanced photoelectrochemical water oxidation

“…For the calculation of J abs , the solar spectral irradiance (W m À2 nm À1 ) of AM 1.5G (100 mW cm À2 ) is first converted to solar photocurrents vs. wavelength (A m À2 nm À1 ), assuming 100% incident photon-to-electron conversion efficiency (IPCE). Then the solar photocurrent is multiplied by the the light harvesting efficiency (LHE = 1-10 ÀA(k) , A is the absorbance of photoanode at given wavelength) at each wavelength [34]. Based on the experimental data, J absorbed is calculated to be~5.46 mA cm À2 for Fe 2 O 3 .…”

Ultrasonication-assisted liquid-phase exfoliation enhances photoelectrochemical performance in α-Fe2O3/MoS2 photoanode

“…Semiconductors for PEC should be efficient, environmentally friendly, and nontoxic end products, and they should enable cost-effective energy conversion [9] , [10] , [11] , [12] , [13] , [14] . Hematite (α-Fe 2 O 3 ) satisfies all these requirements and also has a proper band gap (E g = 2.1 eV) making it a promising candidate for water oxidation [15] , [16] , [17] , [18] , [19] , [20] . However, bare α-Fe 2 O 3 has some limitations in terms of PEC performance, including fast electron-hole recombination, short hole diffusion length (typically 2–4 nm), and low conductivity [2] , [21] , [22] , [23] .…”

Combined Modifications for Effectively Improving the Photoelectrochemical Performance of Hematite Photoanode

“…After coating FeOOH catalyst, the oxidation kinetics of water on the electrode surface is greatly accelerated, and more holes will enter into the electrolyte through the catalyst to participate in the oxygen evolution reaction. [ 23 ] At the same time, the photogenerated electrons are transferred to the photocathode through the external circuit. Therefore, the composite structure photoanode showed more excellent PEC performance.…”