In pursuit of bifunctional catalytic activity in PdS2 pseudo-monolayer through reaction coordinate mapping

Saraf, Deepashri; Chakraborty, Sudip; Kshirsagar, Anjali; Ahuja, Rajeev

doi:10.1016/j.nanoen.2018.04.019

Cited by 48 publications

(43 citation statements)

References 46 publications

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“…Remarkably, the ratio is almost four times faster than that gained from PtSe 2 nanocrystals, and comparable with nitrogen‐doped TiO 2 nanoparticles serving as photocatalyst . Furthermore, several routes have been adopted to find the optimal catalytic activity of 2D NTMDs, such as functionalization with other elements and hybridized with other materials . For example, Ahuja and co‐workers thoroughly investigated the different functionalization of monolayer 1T PdS 2 with N, P, and C functionalized atoms, where N‐functionalized monolayer PdS 2 were predicted to achieve outstanding HER catalytic activity with the adsorption energies of −0.09 eV for isolated H .…”

Section: Application Of 2d Ntmdsmentioning

confidence: 99%

Recent Progress on 2D Noble‐Transition‐Metal Dichalcogenides

Liu

et al. 2019

Adv Funct Materials

233

166

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Emerging classes of 2D noble-transition-metal dichalcogenides (NTMDs) stand out for their unique structure and novel physical properties in recent years. With the nearly full occupation of the d orbitals, 2D NTMDs are expected to be more attractive due to the unique interlayer vibrational behaviors and largely tunable electronic structures compared to most transition metal dichalcogenide semiconductors. The novel properties of 2D NTMDs have stimulated various applications in electronics, optoelectronics, catalysis, and sensors. Here, the latest development of 2D NTMDs are reviewed from the perspective of structure characterization, preparation, and application. Based on the recent research, the conclusions and outlook for these rising 2D NTMDs are presented.Very recently, group-10 noble TMDs (NTMDs) have been reintroduced as new 2D materials, displaying many fascinating properties including widely tunable bandgap, moderate carrier mobility, anisotropy, and ultrahigh air stability. [34][35][36][37] Unlike most common TMDs with less d-electrons, the d orbitals of NTMDs are nearly fully occupied, and the corresponding p z orbital of interlayer chalcogen atoms are highly hybridized, leading to strong layer-dependent properties and interlayer interactions. [36,38] For example, it has been predicted that PtS 2 holds a layerdependent bandgap from 0.25 to 1.6 eV, [36] bridging the gap between graphene and most TMDs that with large gap. Besides, the calculated mobility based on PtS 2 , PtSe 2 , and PdSe 2 field effect transistors (FETs) is as high as ≈200 cm 2 V −1 s −1 , [36,37,39] larger than most other TMDs. Moreover, NTMDs possess high air stability, and the performance of the PtSe 2 FET remains nearly unchanged after 5 months air exposure. [37] Specially, PdS 2 and PdSe 2 hold novel puckered pentagonal structure and thus exhibit very interesting anisotropic properties, [39,40] which may bring even more physics and applications. Additionally, PtTe 2 and PdTe 2 are type-II Dirac fermions, making them great platform for investigating novel transport related to topological phase transition and chiral anomaly. [41,42] Nowadays, the 2D NTMDs is becoming increasingly fascinating in the 2D materials research.In this review, we highlight a comprehensive report of the recent research progress in 2D NTMDs such as PtS 2 , PtSe 2 , PdS 2 , PdSe 2 , PtTe 2 , and PdTe 2 . In order to understand the internal relation between structural characteristics and physical properties, this review begins with a brief summary of the structure of 2D NTMDs and their transitions. Then, some recent progress on their preparation methods, including mechanical exfoliation of the bulk materials, chemical vapor deposition (CVD), molecular beam epitaxy (MBE), is reviewed along with the performance of the resulting 2D NTMDs as high-performance candidate for field effect transistors, photodetectors, catalysis, and sensors. Finally, this review is concluded with the existing challenges and a future perspective for these rising 2D NTMDs. Structure of 2D NTM...

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Section: Application Of 2d Ntmdsmentioning

confidence: 99%

Recent Progress on 2D Noble‐Transition‐Metal Dichalcogenides

Liu

et al. 2019

Adv Funct Materials

233

166

View full text Add to dashboard Cite

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“…Photocatalytic catalysts that can produce hydrogen by splitting water under the sun light have been considered as merited materials to solve the energy crisis by converting solar energy to chemical energy 3,4 . This tendency assigns important missions to the scientists to find efficient photocatalytic catalysts that operating well under the sun light irradiation 5 . Many scientists paid their attention on the two-dimensional (2D) semiconductors since 2D materials fulfil the requirements of energy-conversion devices with suitable width of band gap, wider surface area, lower recombination rate of photo-generated electron-hole pairs, and higher absorbance for visible light [6][7][8][9][10] .…”

Section: First Principles Calculation For Photocatalytic Activity Of mentioning

confidence: 99%

“…Changes in Gibbs free energy and activation energy are encouraged to investigate the kinetic properties that directly determine the reaction rates [35][36][37] . There the Gibbs free energy change (ΔG) for the hydrogen reduction and water oxidation reaction was calculated by the method 5,38 which proposed by Nørskov et al, according to that method ΔG is computed by the following equation 39 :…”

Section: Calculation Detailsmentioning

confidence: 99%

First Principles Calculation for Photocatalytic Activity of GaAs Monolayer

Rouzhahong

Wushuer

Mamat

et al. 2020

Sci Rep

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Solar energy hydrogen production is one of the best solutions for energy crisis. Therefore, finding effective photocatalytic materials that are able to split water under the sunlight is a hot topic in the present research fields. In addition, theoretical prediction is a present low-cost important method to search a new kind of materials. Herein, with the aim of seeking efficient photocatalytic material we investigated the photocatalytic activity of GaAs monolayer by the first principles calculation. According to the obtained electronic and optical properties, we primarily predicted the photocatalytic water splitting activity of GaAs monolayer, which the result further confirmed by the calculated reaction free energy. More remarkably, predicted carrier mobility of GaAs monolayer 2838 cm2V−1s−1 is higher than 200 cm2V−1s−1 of MoS2. Our finding provides a promising material for the development of renewable energy conversion and a new outlook for better designing of a superior photocatalyst for water splitting.

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“…For instance, Wang et al presented the photoluminescence nature of PdS 2 quantum dots (QDs) [36]. Additionally, Saraf et al reported the photocatalytic property of ML PdS 2 , which was proposed for utilization in water-splitting applications for hydrogen and oxygen evolutions [37]. Furthermore, the multilayered PdS 2 was deposited on a side-polished fiber (SPF) as a saturable absorber for femtosecond ultrafast laser generation in the erbium-doped fiber cavity.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast Yb-Doped Fiber Laser Using Few Layers of PdS2 Saturable Absorber

et al. 2020

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Two-dimensional (2D) transition metal dichalcogenide (TMD) materials have exceptional optoelectronic and structural properties, which allow them to be utilized in several significant applications in energy, catalyst, and high-performance optoelectronic devices. Among other properties, the nonlinear optical properties are gaining much attention in the research field. In this work, a unique pentagonal TMD material, palladium disulfide (PdS2), is employed as a saturable absorber (SA) in an ytterbium-doped fiber (YDF) laser cavity and mode-locked laser pulse is generated. At first, liquid phase exfoliation is performed to prepare PdS2 nanoflakes. Afterward, the PdS2-nanoflakes solution was incorporated in the side-polished fiber (SPF) to form SPF-based PdS2-SA. By utilizing this SA, a highly stable mode-locked laser pulse is realized at pump power of 160 mW, which has a center wavelength of 1033 nm and a 3-dB spectral bandwidth of 3.7 nm. Moreover, the pulse duration, maximum power output and corresponding single-pulse energy were determined as 375 ps, 15.7 mW and 0.64 nJ, respectively. During the experiment, the mode-locked pulse remained stable till the pump power reached a value of 400 mW and, for the regulation of power, the slope efficiency is calculated at about 4.99%. These results indicate that PdS2 material is a promising nonlinear optical material for ultrafast optical applications in the near-infrared (NIR) region.

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In pursuit of bifunctional catalytic activity in PdS2 pseudo-monolayer through reaction coordinate mapping

Cited by 48 publications

References 46 publications

Recent Progress on 2D Noble‐Transition‐Metal Dichalcogenides

Recent Progress on 2D Noble‐Transition‐Metal Dichalcogenides

First Principles Calculation for Photocatalytic Activity of GaAs Monolayer

Ultrafast Yb-Doped Fiber Laser Using Few Layers of PdS2 Saturable Absorber

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