Recent advances and the design criteria of metal sulfide photocathodes and photoanodes for photoelectrocatalysis

Abstract

Metal sulfides have emerged as promising materials for photoelectrochemical (PEC) applications due to their favorable light absorption ability, tunable structural and optical properties. With the rapid development of PEC systems,...

Shining light on ZnIn2S4 photocatalysts: Promotional effects of surface and heterostructure engineering toward artificial photosynthesis

“…In obtaining a novel photoelectrode, a considerable amount of researches has worked on the modification of ZnIn 2 S 4, with approaches such as doping (Ni‐doped ZnIn 2 S 4 267 ) and hybridization (TiO 2 /ZnIn 2 S 4 266 ). The as‐fabricated ZnIn 2 S 4 ‐based photoelectrode adhering onto indium tin oxide (ITO) or fluorine‐doped tin oxide (FTO) substrate is usually used as the photoanode favoring water oxidation 268 . Recently, Xu et al 269 in situ incorporated sulfate anionic groups together with V S onto ZnIn 2 S 4 photoanode to augment the PEC performance of the studied material for OWS.…”

“…The as-fabricated ZnIn 2 S 4 -based photoelectrode adhering onto indium tin oxide (ITO) or fluorine-doped tin oxide (FTO) substrate is usually used as the photoanode favoring water oxidation. 268 Recently, Xu et al 269 in situ incorporated sulfate anionic groups together with V S onto ZnIn 2 S 4 photoanode to augment the PEC performance of the studied material for OWS. Each of the modifications has its role, where the sulfate anions behave as the OER kinetics booster and the bulk V S is developed to combat the rapid recombination rate by delivering an exceptional bulk carrier separation efficiency of 75.01% at 1.23 V vs. RHE.…”

Fabrication of p-type silicon nanowire array based photoelectrodes for the efficient photoelectrocatalytic reduction of CO2 to fuels and chemicals

“…Therefore, the photoelectrocatalytic reduction of CO 2 is one of the ideal ways to realize the CO 2 resource utilization, and then achieve the carbon peak and carbon neutral goals as soon as possible. 12,13 Nowadays, many p-type semiconductor materials, such as Cu 2 O, [14][15][16][17][18][19][20][21] Co 3 O 4 , [22][23][24][25][26] NiO, [27][28][29] p-Si, [30][31][32][33][34][35][36][37][38][39][40][41] ZnTe, [42][43][44][45] CuInS 2 , [46][47][48][49][50] GaP [51][52][53] and InP, [54][55][56] have been used for the photoelectrocatalytic reduction of CO 2 . Among these photocathode materials, p-Si has unique properties such as wide absorption, an efficient carrier migration rate and high stability.…”

Ultrasonic Spray Pyrolysis‐assisted Fabrication of Ultrathin CuWO4 Films with Improved Photoelectrochemical Performance

“…[1][2][3] Continuous efforts for PEC studies have been devoted to developing novel low-cost and stable photoelectrodes with an improved conversion efficiency of solar energy. [4][5][6][7] The commonly used method for fabricating photoelectrodes in the industry is through physical mixing strategy, referring to mixing the powder-like photocatalysts, binder, and conductive agent in a certain proportion followed by coating on the surface of the current collector likes FTO or ITO substrate. Although this method has the advantages of low cost, a need for simple equipment and an easy fabrication process, the use of binder and conductive agents will limit the active surface of the electrode contacting with electrolyte, reduce the effective specific surface area, and increase the internal resistance of the electrode.…”