A hematite photoelectrode grown on porous and conductive SnO2 ceramics for solar-driven water splitting

Bondarchuk, A. N.; Corrales-Mendoza, Iván; Tomás, S.A.; Marken, Frank

doi:10.1016/j.ijhydene.2019.06.055

Cited by 18 publications

(10 citation statements)

References 91 publications

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“…These oxides were mixed, dried and pressed into discs before sintering in the furnace as described in [39,40]. The density of sintered material was estimated by the Archimedes method [42].…”

Section: Methodsmentioning

confidence: 99%

“…Recently, we reported conductive and porous SnO2-Sb2O5 ceramics as a promising candidate to be used as substrates ("host") for photocatalytic coating of hematite [42] and bismuth vanadate [43]. It is worth mentioning here that tin dioxide is widely used to prepare different optoelectronic devices and composite materials, for example, perovskite solar cells [44][45][46][47], varistors [48][49][50], gas sensors [51][52][53].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning here that tin dioxide is widely used to prepare different optoelectronic devices and composite materials, for example, perovskite solar cells [44][45][46][47], varistors [48][49][50], gas sensors [51][52][53]. For the photoelectrodes prepared in [42], the hematite coating was grown by the aerosol-assisted chemical vapor deposition (AA-CVD). SnO2-Sb2O5 ceramics applied as a substrate have been sintered at relatively high temperature (1300 • C), which assures good electric contacts between grains and opens a possibility of additional heat treatment of photoelectrode at high temperature.…”

Section: Introductionmentioning

confidence: 99%

“…In this case, the photocatalytic coating formed in the substrate volume is active and makes its contribution to the photocurrent. The unmodified hematite and bismuth vanadate photoelectrodes grown on these substrates exhibit a relatively high photocurrent, 2.8 and 1.1 mA/cm 2 respectively at 1.23 V vs. RHE under blue light of Thorlabs M455L2 LED [42,43].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hematite photoelectrodes grown on porous CuO–Sb2O5–SnO2 ceramics for photoelectrochemical water splitting

Bondarchuk

Corrales-Mendoza

Marken

et al. 2021

Solar Energy Materials and Solar Cells

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hematite photoelectrodes grown on porous CuO–Sb2O5–SnO2 ceramics for photoelectrochemical water splitting

Bondarchuk

Corrales-Mendoza

Marken

et al. 2021

Solar Energy Materials and Solar Cells

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“…This is due to its zero CO 2 emissions, low density, high energy density, environmental friendliness, renewability, and storage capacity. This technique requires a large-area photoelectrode and a low-cost chemically stable material with significant absorption of solar light and a suitable bandgap [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Design of SnO2:Ni,Ir Nanoparticulate Photoelectrodes for Efficient Photoelectrochemical Water Splitting

et al. 2022

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Currently, hydrogen generation via photocatalytic water splitting using semiconductors is regarded as a simple environmental solution to energy challenges. This paper discusses the effects of the doping of noble metals, Ir (3.0 at.%) and Ni (1.5–4.5 at.%), on the structure, morphology, optical properties, and photoelectrochemical performance of sol-gel-produced SnO2 thin films. The incorporation of Ir and Ni influences the position of the peaks and the lattice characteristics of the tetragonal polycrystalline SnO2 films. The films have a homogeneous, compact, and crack-free nanoparticulate morphology. As the doping level is increased, the grain size shrinks, and the films have a high proclivity for forming Sn–OH bonds. The optical bandgap of the un-doped film is 3.5 eV, which fluctuates depending on the doping elements and their ratios to 2.7 eV for the 3.0% Ni-doped SnO2:Ir Photoelectrochemical (PEC) electrode. This electrode produces the highest photocurrent density (Jph = 46.38 mA/cm2) and PEC hydrogen production rate (52.22 mmol h−1cm−2 at −1V), with an Incident-Photon-to-Current Efficiency (IPCE% )of 17.43% at 307 nm. The applied bias photon-to-current efficiency (ABPE) of this electrode is 1.038% at −0.839 V, with an offset of 0.391% at 0 V and 307 nm. These are the highest reported values for SnO2-based PEC catalysts. The electrolyte type influences the Jph values of photoelectrodes in the order Jph(HCl) > Jph(NaOH) > Jph(Na2SO4). After 12 runs of reusability at −1 V, the optimized photoelectrode shows high stability and retains about 94.95% of its initial PEC performance, with a corrosion rate of 5.46 nm/year. This research provides a novel doping technique for the development of a highly active SnO2-based photoelectrocatalyst for solar light-driven hydrogen fuel generation.

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Ceria-doped SnO2 nanocubes for solar light–driven photocatalytic hydrogen production

Moses

Baral

2022

Environ Sci Pollut Res

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A hematite photoelectrode grown on porous and conductive SnO2 ceramics for solar-driven water splitting

Cited by 18 publications

References 91 publications

Hematite photoelectrodes grown on porous CuO–Sb2O5–SnO2 ceramics for photoelectrochemical water splitting

Hematite photoelectrodes grown on porous CuO–Sb2O5–SnO2 ceramics for photoelectrochemical water splitting

Design of SnO2:Ni,Ir Nanoparticulate Photoelectrodes for Efficient Photoelectrochemical Water Splitting

Ceria-doped SnO2 nanocubes for solar light–driven photocatalytic hydrogen production

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