Photochemical HER activity of layered metal phospho-sulfides and -selenides

Barua, Manaswee; Ayyub, Mohd Monis; Vishnoi, Pratap; Pramoda, K.; Rao, C. N. R.

doi:10.1039/c9ta06044h

Cited by 40 publications

(41 citation statements)

References 60 publications

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“…Many of theory 2D crystals are difficult to survive in reality because of the trend of easy corrosion, decomposition, and segregation. The phase transition is also not easy to control that sometimes [280] Copyright 2019, RSC.…”

Section: Mpts Catalystsmentioning

confidence: 99%

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Phase Transitions and Water Splitting Applications of 2D Transition Metal Dichalcogenides and Metal Phosphorous Trichalcogenides

et al. 2021

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2D layered materials turn out to be the most attractive hotspot in materials for their unique physical and chemical properties. A special class of 2D layered material refers to materials exhibiting phase transition based on environment variables. Among these materials, transition metal dichalcogenides (TMDs) act as a promising alternative for their unique combination of atomic-scale thickness, direct bandgap, significant spin-orbit coupling and prominent electronic and mechanical properties, enabling them to be applied for fundamental studies as catalyst materials. Metal phosphorous trichalcogenides (MPTs), as another potential catalytic 2D phase transition material, have been employed for their unusual intercalation behavior and electrochemical properties, which act as a secondary electrode in lithium batteries. The preparation of 2D TMD and MPT materials has been extensively conducted by engineering their intrinsic structures at the atomic scale. In this study, advanced synthesis methods of preparing 2D TMD and MPT materials are tested, and their properties are investigated, with stress placed on their phase transition. The surge of this type of report is associated with water-splitting catalysis and other catalytic purposes. This study aims to be a guideline to explore the mentioned 2D TMD and MPT materials for their catalytic applications.

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Section: Mpts Catalystsmentioning

confidence: 99%

Section: Catalytic Applications For 2d Phase Transition Tmds and Mptsmentioning

confidence: 99%

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Phase Transitions and Water Splitting Applications of 2D Transition Metal Dichalcogenides and Metal Phosphorous Trichalcogenides

et al. 2021

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“…[29,34] Moreover, it was discovered recently that abrupt spin-crossover is accompanied by SMT and the appearance of a superconducting state with a transition temperature T C 2.5 K at 9 GPa and the maximum T C 5.5 K at about 30 GPa. [29] Besides, FePSe 3 demonstrates enhanced electrocatalytic activity when it is exfoliated into single and few-layer sheets [35][36][37][38] or produced as nanoparticles. [39] The layered structure of FePSe 3 makes it also the material under consideration for cathodes in lithium batteries [30,40] and for hydrogen storage.…”

Section: Introductionmentioning

confidence: 99%

“…GPa and the maximum T C ∼ 5.5 K at about 30 GPa. 29 Besides, FePSe 3 demonstrates enhanced electrocatalytic activity when it is exfoliated into single and few-layer sheets [35][36][37][38] or produced as nanoparticles. 39 The layered structure of FePSe 3 makes it also the material under consideration for cathodes in lithium batteries 30,40 and for hydrogen storage.…”

Section: Introductionmentioning

confidence: 99%

Topological analysis of chemical bonding in the layered FePSe₃ upon pressure‐induced phase transitions

Ėvarestov

Kuzmin

2020

J Comput Chem

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Two pressure-induced phase transitions have been theoretically studied in the layered iron phosphorus triselenide (FePSe 3). Topological analysis of chemical bonding in FePSe 3 has been performed based on the results of first-principles calculations within the periodic linear combination of atomic orbitals (LCAO) method with hybrid Hartree-Fock-DFT B3LYP functional. The first transition at about 6 GPa is accompanied by the symmetry change from R 3 to C2/m, whereas the semiconductor-to-metal transition (SMT) occurs at about 13 GPa leading to the symmetry change from C2/m to P 31m. We found that the collapse of the band gap at about 13 GPa occurs due to changes in the electronic structure of FePSe 3 induced by relative displacements of phosphorus or selenium atoms along the c-axis direction under pressure. The results of the topological analysis of the electron density and its Laplacian demonstrate that the pressure changes not only the interatomic distances but also the bond nature between the intralayer and interlayer phosphorus atoms. The interlayer P-P interactions are absent in two non-metallic FePSe 3 phases while after SMT the intralayer P-P interactions weaken and the interlayer P-P interactions appear.

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A Universal Design Strategy Based on NiPS₃ Nanosheets towards Efficient Photothermal Conversion and Solar Desalination

Wang,

Bo,

Klingenhof

et al. 2023

Adv Funct Materials

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Abstract2D nanomaterials are proposed as promising photothermal materials for interfacial photothermal water evaporation. However, low evaporation efficiency, the use of hazardous hydrofluoric solution, and poor stability severely limit their practical applications. Here, a mixed solvent exfoliation surface deposition (MSESD) strategy for the preparation of NiPS3 nanosheets and NiPS3/polyvinyl alcohol (PVA) converter is successfully developed. The converter is obtained by drop‐casting the NiPS3/PVA nanosheets onto a sponge. The PVA is mainly deposited on the edge of NiPS3 nanosheets, which not only improves the stability of NiPS3 nanosheets, but also adheres to the sponge to prepare a 3D photothermal converter, which shows an evaporation rate of 1.48 kg m−2 h−1 and the average photothermal conversion efficiency (PTCE) of 93.5% under a light intensity of 1 kW m−2. The photothermal conversion mechanism reveals that the energy of absorbed photons in NiPS3 nanosheets can be effectively converted into heat through non‐radiative photon transitions as well as multiple optical interactions. To the best of the knowledge, this is the first report on the application of 2D metal‐phosphorus‐chalcogen (MPChx) for solar desalination, which provides new insights and guidance for the development of high‐performance 2D photothermal materials.

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Photochemical HER activity of layered metal phospho-sulfides and -selenides

Abstract: Various mono and bimetallic phosphochalcogenides are synthesized from their constituent elements and exfoliated down to few-layers by sonication in aqueous media and their photochemical HER activity is investigated.

Cited by 40 publications

References 60 publications

Phase Transitions and Water Splitting Applications of 2D Transition Metal Dichalcogenides and Metal Phosphorous Trichalcogenides

Phase Transitions and Water Splitting Applications of 2D Transition Metal Dichalcogenides and Metal Phosphorous Trichalcogenides

Topological analysis of chemical bonding in the layered FePSe₃ upon pressure‐induced phase transitions

A Universal Design Strategy Based on NiPS₃ Nanosheets towards Efficient Photothermal Conversion and Solar Desalination

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Photochemical HER activity of layered metal phospho-sulfides and -selenides

Abstract: Various mono and bimetallic phosphochalcogenides are synthesized from their constituent elements and exfoliated down to few-layers by sonication in aqueous media and their photochemical HER activity is investigated.

Cited by 40 publications

References 60 publications

Phase Transitions and Water Splitting Applications of 2D Transition Metal Dichalcogenides and Metal Phosphorous Trichalcogenides

Phase Transitions and Water Splitting Applications of 2D Transition Metal Dichalcogenides and Metal Phosphorous Trichalcogenides

Topological analysis of chemical bonding in the layered FePSe3 upon pressure‐induced phase transitions

A Universal Design Strategy Based on NiPS3 Nanosheets towards Efficient Photothermal Conversion and Solar Desalination

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Product

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Topological analysis of chemical bonding in the layered FePSe₃ upon pressure‐induced phase transitions

A Universal Design Strategy Based on NiPS₃ Nanosheets towards Efficient Photothermal Conversion and Solar Desalination