Effect of sulfur precursors on hydrothermal growth of MoS2 nanostructures and its visible-light-driven photocatalytic activities

Ali, Zulfiqar; Hussain, Qadeer; Yawer, Mirza Arfan; Mehmood, Mazhar; Hussain, Riaz; Shah, Attaullah; Kanwal, Hira; Yawer, Affifa; Ahmad, Shahzad; Zahid, Sikandar

doi:10.1016/j.molstruc.2023.134929

Cited by 15 publications

(2 citation statements)

References 53 publications

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“…72 This eco-friendly approach eliminates the need for pH control and complexing agents. Through this method, FeS 2 , 73 CuS, 74 Ag 2 S, 75 MoS, 76 and CdS 77 are prepared. NPs are synthesized by heating a mixture of metal salts and sulfide sources.…”

Section: Synthetic Approaches For Metal Sulfide Nanoparticlesmentioning

confidence: 99%

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

Sandhu,

Raza,

Farwa

et al. 2023

Mater. Adv.

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Section: Synthetic Approaches For Metal Sulfide Nanoparticlesmentioning

confidence: 99%

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

Sandhu,

Raza,

Farwa

et al. 2023

Mater. Adv.

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“…Not only electrochemical charge storage, but also the electrocatalytic hydrogen evolution (HER) performance is dependent on MoS2 crystal structure and morphology [18]. This led to the exploration of various hydrothermal synthesis routes controlling MoS2 structure by choice of sulfur-precursor [19][20][21][22]. Liu et al found that thioacetamide (TAA) and L-cysteine (LC) possess lower decomposition temperatures than thiourea (TU), thereby releasing sulfur more readily, leading to smaller particle sizes and the tendency to form the 1T-polytype, which in turn, leads to a favorable HER activity [23].…”

Section: Introductionmentioning

confidence: 99%

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Tobis,

Elmanzalawy,

Choi

et al. 2024

Preprint

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Molybdenum disulfide (MoS2)-based electrode materials can exhibit a pseudocapacitive charge storage mechanism induced by nanosized dimension of the crystalline domains. This effect is achievable through hydrothermal synthesis of MoS2, which often yields different properties of the final material, thereby affecting its electrochemical lithium intercalation behavior. In this study, we investigate how the use of different sulfide precursors, specifically thiourea (TU), thioacetamide (TAA), and L-cysteine (LC), during the hydrothermal synthesis of MoS2, affects its physicochemical, and consequently, electrochemical properties. The three materials obtained exhibit distinct morphologies, ranging from micron-sized architectures (MoS2 TU), to nanosized flakes (MoS2 TAA and LC), which influence their available specific surface area and tortuosity. Consequently, the choice of hydrothermal synthesis parameters allows to control the resulting electrochemical signature. The individual charge storage properties are analyzed by operando X-ray diffraction, dilatometry, and 3D Bode analysis, revealing a correlation between the morphology, porosity, and the electrochemical intercalation behavior of the obtained electrode materials. The results demonstrate a facile strategy to control MoS2 structure and related functionality by choice of hydrothermal synthesis precursors.

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Controlling Structure and Morphology of MoS₂ via Sulfur Precursor for Optimized Pseudocapacitive Lithium Intercalation Hosts

Tobis,

Elmanzalawy,

Choi

et al. 2024

Batteries & Supercaps

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Molybdenum disulfide (MoS2)‐based electrode materials can exhibit a pseudocapacitive charge storage mechanism induced by nanosized dimension of the crystalline domains, which is why control over material structure via synthesis conditions is of significance. In this study, we investigate how the use of different sulfide precursors, specifically thiourea (TU), thioacetamide (TAA), and L‐cysteine (LC), during the hydrothermal synthesis of MoS2, affects its physicochemical, and consequently, electrochemical properties. The three materials obtained exhibit distinct morphologies, ranging from micron‐sized architectures (MoS2 TU), to nanosized flakes (MoS2 TAA and LC). While all three synthesized samples exhibit pseudocapacitive Li+ intercalation properties, the capacity retention of the latter two consisting of nanosized flakes is further improved at high cycling rates. The individual charge storage properties are analyzed by operando X‐ray diffraction, dilatometry, and 3D Bode analysis, revealing a correlation between the morphology, porosity, and the electrochemical intercalation behavior of the obtained electrode materials. The results demonstrate a facile strategy to control MoS2 structure and related functionality by choice of hydrothermal synthesis precursors.

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Effect of sulfur precursors on hydrothermal growth of MoS2 nanostructures and its visible-light-driven photocatalytic activities

Cited by 15 publications

References 53 publications

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Controlling Structure and Morphology of MoS₂ via Sulfur Precursor for Optimized Pseudocapacitive Lithium Intercalation Hosts

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Effect of sulfur precursors on hydrothermal growth of MoS2 nanostructures and its visible-light-driven photocatalytic activities

Cited by 15 publications

References 53 publications

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

Response surface methodology: a powerful tool for optimizing the synthesis of metal sulfide nanoparticles for dye degradation

Controlling structure and morphology of MoS2 via sulfur precursor for optimized pseudocapacitive lithium intercalation hosts

Controlling Structure and Morphology of MoS2 via Sulfur Precursor for Optimized Pseudocapacitive Lithium Intercalation Hosts

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Controlling Structure and Morphology of MoS₂ via Sulfur Precursor for Optimized Pseudocapacitive Lithium Intercalation Hosts