Semicrystalline SrTiO<sub>3</sub>‐Decorated Anatase TiO<sub>2</sub> Nanopie as Heterostructure for Efficient Photocatalytic Hydrogen Evolution

He, Yilei; Zhang, Lijuan; Wei, Yanze; Zhang, Xing; Wang, Zumin; Yu, Ranbo

doi:10.1002/smtd.202101567

Cited by 30 publications

(12 citation statements)

References 44 publications

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“…The detailed parameters of the above equation can be found elsewhere [31][32][33]. data, the XRD pattern of 10%CF-SrTiO 3 & 5%CF-SrTiO 3 mostly crossponds to cubic perovskite structure; a minor peak of Co/Fe is apparent due to the low-temperature sintering suggesting that the obtained structure is pure cubic perovskite structure; also, it is in agreement with the published literature [12,23,34]. The surface doping content of 5% and 10% were used in pure SrTiO 3 crystalline structure, and the doping caused enhanced the lattice parameters and reduce the peak intensity.…”

Section: Dft Calculationsupporting

confidence: 85%

Enabling high ionic conductivity in semiconductor electrolyte membrane by surface engineering and band alignment for LT-CFCs

Shah

Mushtaq

et al. 2023

Journal of Membrane Science

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Section: Dft Calculationsupporting

confidence: 85%

Enabling high ionic conductivity in semiconductor electrolyte membrane by surface engineering and band alignment for LT-CFCs

Shah

Mushtaq

et al. 2023

Journal of Membrane Science

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“…Further, XRD and XPS studies are performed on the as-obtained SrTiO 3 –Ni 2 P5 photocatalyst coating after 20 runs in order to find the reason for the drop in the activity after the repeated runs. The results obtained with the present work are compared with other recently reported similar catalyst systems in this area (Table S6), ,,,,,,, and it shows that the developed catalyst system is highly competent in activity for generating hydrogen by solar water splitting. Notably, the retained stability of the SrTiO 3 –Ni 2 P5 coating catalyst nearly up to 15 runs is outstanding compared to the 4 to 5 runs of other recently reported catalysts in their powdered forms.…”

Section: Resultssupporting

confidence: 54%

Development of Sustainable Catalyst Coating of Ni₂P Engineered SrTiO₃ Nanocubes for Hydrogen Generation

Meera

Abhirami

Hossain

et al. 2022

ACS Appl. Eng. Mater.

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Ni 2 P has a significant importance in the field of photocatalytic water splitting, irrespective of its narrow band gap (1.0 eV). The photocatalytic performance of bare Ni 2 P is highly limited due to the fast recombination rate of the electron−hole pairs. However, it can be used suitably for tuning the band gap of wide band gap semiconductors. The present study involves the development of an effective heterojunction with tuned band gap by Ni 2 P engineered SrTiO 3 nanocubes in the form of a coating after successful compositional tuning. This is accomplished by an in situ decoration of SrTiO 3 nanocubes at the active sites of Ni 2 P via a chemical reduction method. Morphological and physical features of the developed catalyst are tuned in the coating in order to have Ni 2 P as the major phase for maintaining the physical structure and to impart enhancement in photocatalytic performance and stability to the catalyst system. As the conduction band of SrTiO 3 lies at a more negative potential compared to that of Ni 2 P, the excited electrons from SrTiO 3 can easily be injected to the active sites of Ni 2 P for proton reduction. Thus, in addition to tuning the composite energy band gap, Ni 2 P acts as the reaction center for hydrogen generation and as the stable catalyst bed for SrTiO 3 nanocube decoration. The appearance of SrTiO 3 enriches the electron density at the Ni 2 P active sites, and Ni 2 P with negatively charged phosphorus has the ability to capture more protons at these sites for accelerating the rate of hydrogen generation. The enhancement in the microsurface properties of Ni 2 P in the composite coating are evaluated with OSP technique. The hydrogen generation rate as high as 7.03 mmol/g/h is achieved with the as-engineered catalyst coating, with an apparent quantum yield of 23.72% at 400 nm. The catalyst system shows a sustained hydrogen generation rate even after 15 cycles confirming the suitability of large scale production for industrial applications.

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“…However, MOF-derived semiconductor or carbon materials inherit the porous structure of MOFs, featuring highly exposed active sites, as well as structural diversity, also demonstrate potential for the impressive photocatalytic generation of solar fuel. [233][234][235][236][237][238] As such, we believe that the construction of MOF, MOF composite, and MOF derivative-based photocatalysts can be of significant importance for further advancing solar fuel production.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

Metal–Organic Framework‐Based Photocatalysis for Solar Fuel Production

Xiao¹,

Jiang

2022

Small Methods

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Metal–organic frameworks (MOFs) represent a novel class of crystalline inorganic–organic hybrid materials with tunable semiconducting behavior. MOFs have potential for application in photocatalysis to produce sustainable solar fuels, owing to their unique structural advantages (such as clarity and modifiability) that can facilitate a deeper understanding of the structure–activity relationship in photocatalysis. This review takes the photocatalytic active sites as a particular perspective, summarizing the progress of MOF‐based photocatalysis for solar fuel production; mainly including three categories of solar‐chemical conversions, photocatalytic water splitting to hydrogen fuel, photocatalytic carbon dioxide reduction to hydrocarbon fuels, and photocatalytic nitrogen fixation to high‐energy fuel carriers such as ammonia. This review focuses on the types of active sites in MOF‐based photocatalysts and discusses their enhanced activity based on the well‐defined structure of MOFs, offering deep insights into MOF‐based photocatalysis.

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Semicrystalline SrTiO₃‐Decorated Anatase TiO₂ Nanopie as Heterostructure for Efficient Photocatalytic Hydrogen Evolution

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smtd.202101567. Scheme 1. The synthesis process of SrTiO 3 /TiO 2 .

Cited by 30 publications

References 44 publications

Enabling high ionic conductivity in semiconductor electrolyte membrane by surface engineering and band alignment for LT-CFCs

Enabling high ionic conductivity in semiconductor electrolyte membrane by surface engineering and band alignment for LT-CFCs

Development of Sustainable Catalyst Coating of Ni₂P Engineered SrTiO₃ Nanocubes for Hydrogen Generation

Metal–Organic Framework‐Based Photocatalysis for Solar Fuel Production

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Semicrystalline SrTiO3‐Decorated Anatase TiO2 Nanopie as Heterostructure for Efficient Photocatalytic Hydrogen Evolution

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smtd.202101567. Scheme 1. The synthesis process of SrTiO 3 /TiO 2 .

Cited by 30 publications

References 44 publications

Enabling high ionic conductivity in semiconductor electrolyte membrane by surface engineering and band alignment for LT-CFCs

Enabling high ionic conductivity in semiconductor electrolyte membrane by surface engineering and band alignment for LT-CFCs

Development of Sustainable Catalyst Coating of Ni2P Engineered SrTiO3 Nanocubes for Hydrogen Generation

Metal–Organic Framework‐Based Photocatalysis for Solar Fuel Production

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Semicrystalline SrTiO₃‐Decorated Anatase TiO₂ Nanopie as Heterostructure for Efficient Photocatalytic Hydrogen Evolution

Development of Sustainable Catalyst Coating of Ni₂P Engineered SrTiO₃ Nanocubes for Hydrogen Generation