Indium Sulfide Based Photoelectrodes for All-Vanadium Photoelectrochemical Redox Flow Batteries

Abstract

The utilization of indium sulfide (In 2 S 3 ) photoelectrodes in an all-vanadium photoelectrochemical redox flow battery system has been investigated. The In 2 S 3 -based photoelectrodes have been prepared via the ultrasonic spray pyrolysis (USP) method. The thickness of the In 2 S 3 photoelectrodes has been altered via increasing the pass number of the USP nozzle from 25 to 75 passes. Each pass delivers 6 μL•cm −2 of the precursor solution. Within the scope of the photoelectrochemical oxidation on the In 2 S 3 , the vanadium couples of VO 2+ /V 3+ have been proven to be promising redox species. The maximum charge separation and quantum efficiencies of 46% and 20% have been calculated, respectively.

Inverted Configuration of Cu(In,Ga)S2/In2S3 on 3D-ZnO/ZnSnO3 Bilayer System for Highly Efficient Photoelectrochemical Water Splitting

“…The decorations of the ZTO, CIGS, and In 2 S 3 semiconductor layers have been carried out using the USP system by altering the pass number of the nozzle head to achieve the desired thickness as described in our previous reports. − Each pass number (P) delivered approximately 6.0 μL/cm 2 of the precursor solution. ZTO deposition with 12P has been performed by spraying the precursor solution containing 25.0 mM zinc acetate dihydrate and 75.0 mM tin chloride dihydrate in 50 mL of methanol–DI water (v/v = 3:1) at 200 °C.…”

Solar-assisted all-solid supercapacitors using composite nanostructures of ZnO nanowires with GO and rGO

“…In particular, the use of solar energy as a renewable energy source has become a growing concern to diminish the dependence on fossil fuels. [1][2][3][4][5] Nowadays, several technologies for energy conversion and storage such as photovoltaic (PV) solar cells, 6 photoelectrochemical (PEC) cells, [7][8][9][10] Li-ion batteries, 11 PEC redox-flow batteries, 12 and supercapacitors (SC) 13 have been developed to meet the energy demand. In particular, in the last few years, supercapacitors have attracted significant attention due to their low-cost, safe operation, fast charge-discharge cycles, high power density, and cyclic stability.…”

Understanding Wavelength-Dependent Synergies between Morphology and Photonic Design in TiO2-Based Solar Powered Redox Cells

“…While these numbers provide an integral view of the device behavior, we can gain further insight from the spectrally resolved response of the photoanodes. We thus measured the incident photon to current efficiency of NT and NT/Au samples using 1 M KBr and 0.5 M LiH 2 PO 4 buffer solution is shown in Figure 4 c. The IPCE was obtained under 0.612 V versus Ag/AgCl reference electrode, i.e., near the Br – oxidation potential, 72 , 73 and under monochromatic illumination with a 20 nm λ step-size across the 340–680 nm range. The spectra were calculated by measuring the photocurrent transient (20–20s light on–off under 5 cycles) under monochromatic light as Figure S12 shows.…”