Layered transition metal dichalcogenides for electrochemical energy generation and storage

Pumera, Martin; Sofer, Zdeněk; Ambrosi, Adriano

doi:10.1039/c4ta00652f

Cited by 566 publications

(360 citation statements)

References 64 publications

(43 reference statements)

Supporting

Mentioning

357

Contrasting

Order By: Relevance

“…In TMDs, it is known that disulfides are catalytically active site for the HER reaction. 6,7,[47][48][49] Thus, if all other terms present in Eq. 1 are held constant, we would expect that by converting thiol sites into the active disulfide form the catalytic performance of the electrode should increase.…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10] Numerous production techniques to obtain 2D-materials exist, with exfoliation in liquid particularly attractive due to its ease, scalable production of bulk quantities, and the possibility of further solution processing. 11 Several distinct exfoliation techniques in liquid are available, with the simplest being liquid-phase exfoliation (LPE).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Production of monolayer-rich gold-decorated 2H–WS2 nanosheets by defect engineering

et al. 2018

View full text Add to dashboard Cite

Chemical functionalization of low-dimensional nanostructures has evolved as powerful tool to tailor the materials' properties on demand. For two-dimensional transition metal dichalcogenides, functionalization strategies are mostly limited to the metallic 1T-polytype with only few examples showing a successful derivatization of the semiconducting 2H-polytype. Here, we describe that liquid-exfoliated WS 2 undergoes a spontaneous redox reaction with AuCl 3 . We propose that thiol groups at edges and defects sites reduce the AuCl 3 to Au 0 and are in turn oxidized to disulfides. As a result of the reaction, Au nanoparticles nucleate predominantly at edges with tuneable nanoparticle size and density. The drastic changes in nanosheet mass obtained after high loading with Au nanoparticles can be exploited to enrich the dispersions in laterally large, monolayered nanosheets by simple centrifugation. The optical properties (for example photoluminescence) of the monolayers remain pristine, while the electrocatalytic activity towards the hydrogen evolution reaction is significantly improved.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Production of monolayer-rich gold-decorated 2H–WS2 nanosheets by defect engineering

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Featuring 2D morphology and ultrathin thickness, these MX 2 nanostructures, particularly mono-and fewlayered nanosheets, present some unusual chemical, physical or electronic properties compared to their bulk counterparts and therefore hold great promise for a variety of applications. [1][2][3][4][5] Owing to their high anisotropy and unique crystal structures, MX 2 can be utilized in a variety of energy conversion and storage applications, including water splitting cells, rechargeable batteries, supercapacitors, fuel cells, as well as various electronic and optoelectronic devices, etc. [6][7][8][9][10][11] Nanoengineering (morphology, size, number of layers, edges, defects), [12][13][14][15][16][17] phase conversion, [18][19][20][21][22][23] and composition tuning (alloying, doping with foreign transition metal), [24][25][26][27][28][29][30][31] represent the hot research areas in the recent past, aiming at modulation of the material properties and improvement of the device performances.…”

Section: Introductionmentioning

confidence: 99%

Interlayer Nanoarchitectonics of Two‐Dimensional Transition‐Metal Dichalcogenides Nanosheets for Energy Storage and Conversion Applications

Zhang

et al. 2017

Advanced Energy Materials

321

250

View full text Add to dashboard Cite

Lamellar transition‐metal dichalcogenides (MX2) have promising applications in electrochemical energy storage and conversion devices due to their two‐dimensional structure, ultrathin thickness, large interlayer distance, tunable bandgap, and transformable phase nature. Interlayer engineering of MX2 nanosheets with large specific surface area can modulate their electronic structures and interlayer distance as well as the intercalated foreign species, which is important for optimizing their performance in different devices. In this review, a summary on recent progress of MX2 nanosheets and the significance of their interlayer engineering is presented firstly. Synthesis of interlayer‐expanded MX2 nanosheets with various strategies is then discussed in detail. Emphasis is focused on their applications in rechargeable batteries, pseudocapacitors, hydrogen evolution reaction (HER) catalysis and treatments of environmental contaminants, demonstrating the importance of interlayer engineering on controlling performance of MX2. The current challenges of the interlayer‐expanded MX2 and outlooks for further advances are finally discussed.

show abstract

“…Bulk TMDC particles can be exfoliated to create 2D nanoflakes or nanosheets with reduced ion diffusion pathways. In addition, the anisotropic structure of 2D nanosheets can offer large surface area opening access to 2D permeable diffusion channels facilitating insertion/extraction of electrochemically cycled ions [103,107].…”

Section: Transition Metal Dichalcogenidesmentioning

confidence: 99%

Emerging nanostructured electrode materials for water electrolysis and rechargeable beyond Li-ion batteries

Pomerantseva

Resini

Kovnir

et al. 2017

Advances in Physics: X

View full text Add to dashboard Cite

This review describes recent advances in electrochemical water electrolysis and rechargeable beyond Li-ion battery research, two emergent and widely employed technologies playing important roles in clean energy production and storage. The principle components of these electrochemical processes are electrode materials, which are currently facing challenges in performance improvement, thus motivating the development of novel electrode materials. This development requires synergistic interactions between experimentalists and theorists with backgrounds in solid state chemistry, condensed matter physics, and materials science and engineering. In light of a large amount of literature covering the topic, we will focus this review on the seminal electrode materials that have been discovered in the last five years, such as transition metal chalcogenides, carbides, and phosphides, as well as 2D layered materials. Intensive cross-disciplinary research is also dedicated to nanostructuring and hybridization of the emerging electrode materials in order to maximize the efficiency and simultaneously to lower the cost of the processes. As the understanding of the nanoscale-related effects deepens, it opens important pathways to the discovery of further materials and their improvement.

show abstract

Layered transition metal dichalcogenides for electrochemical energy generation and storage

Abstract: Layered transition metal dichalcogenides (TMDs) (MoS2, MoSe2, WS2, WSe2, etc.) are a chemically diverse class of compounds having remarkable electrochemical properties.

Cited by 566 publications

References 64 publications

Production of monolayer-rich gold-decorated 2H–WS2 nanosheets by defect engineering

Production of monolayer-rich gold-decorated 2H–WS2 nanosheets by defect engineering

Interlayer Nanoarchitectonics of Two‐Dimensional Transition‐Metal Dichalcogenides Nanosheets for Energy Storage and Conversion Applications

Emerging nanostructured electrode materials for water electrolysis and rechargeable beyond Li-ion batteries

Contact Info

Product

Resources

About