Unsaturated-sulfur-rich MoS2 nanosheets decorated on free-standing SWNT film: Synthesis, characterization and electrocatalytic application

Liu, Daobin; Xu, Weiyu; Liu, Qin; He, Qun; Haleem, Yasir A.; Wang, Changda; Xiang, Ting; Zou, Chongwen; Chu, Wangsheng; Zhong, Jun; Niu, Zhiqiang; Li, Song

doi:10.1007/s12274-016-1098-6

Cited by 67 publications

(48 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[43] The MoS 2 nanosheets with a interlayer spacing of 0.65 nm grown on single-walled carbon nanotube (SWNT) film by a solvothermal method act as an HER electrocatalyst exhibited a small Tafel slope of 41 mV dec −1 , which is much smaller than (74 mV dec −1 ) of the pure MoS 2 nanosheets. [148] A Tafel slope as small as 40 mV dec −1 is achieved in the hybrid electrocatalyst of vertical N-doped carbon nanotube (NCNT) forest supported amorphous MoS x with an interlayer spacing of 0.67 nm. [149] Preparing metallic phase instead of semiconducting 2H phase is another approach to increase the conductivity of MX 2 .…”

Section: Applications As Electrocatalysts For Hydrogen Evolution Reacmentioning

confidence: 99%

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

Zhang

et al. 2017

Advanced Energy Materials

346

253

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

Section: Applications As Electrocatalysts For Hydrogen Evolution Reacmentioning

confidence: 99%

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

Zhang

et al. 2017

Advanced Energy Materials

346

253

View full text Add to dashboard Cite

show abstract

“…Now, this notion has been widely accepted among the researchers. Therefore, subsequent efforts have been devoted to maximizing the exposure of such edge sites, among which one efficient strategy is nano-structuring [57]. Kong et al [58] maximized the exposure of edges by growing MoS 2 and MoSe 2 thin films with vertically aligned layers.…”

Section: Transition Metal Phosphidesmentioning

confidence: 99%

Electrocatalyst engineering and structure-activity relationship in hydrogen evolution reaction: From nanostructures to single atoms

et al. 2020

View full text Add to dashboard Cite

With the ever-pressing issues of global energy demand and environmental pollution, molecular hydrogen has been receiving increasing attention as a clean alternative energy carrier. For hydrogen production, the design and development of high-performance catalysts remains rather challenging. As the compositions and structures of catalyst interfaces have paramount influences on the catalytic performances, the central topic here has always been to design and engineer the interface structures via rational routes so as to boost the activities and stabilities of electrocatalysts on hydrogen evolution reaction (HER). Here in this review, we focus on the design and preparation of multi-scale catalysts specifically catering to HER applications. We start from the design and structure-activity relationship of catalytic nanostructures, summarize the research progresses related to HER nanocatalysts, and interpret their high activities from the atomistic perspective; then, we review the studies regarding the design, preparation, HER applications and structure-activity relationship of single-atom site catalysts (SASCs), and thereupon discuss the future directions in designing HER-oriented SASCs. At the end of this review, we present an outlook on the development trends and faced challenges of catalysts for electrochemical HER.

show abstract

“…Numerous efforts have been made to improve the HER performance of MoS 2 . Except improving the charge transport of MoS 2 films, the most popular method is to create more edges and defects on MoS 2 films . It is well known that the edges of MoS 2 are more active than the inert basal plane for HER .…”

mentioning

confidence: 99%

Boosting Hydrogen Evolution Performance of MoS₂ by Band Structure Engineering

Kang

Cai

et al. 2017

Adv Materials Inter

View full text Add to dashboard Cite

Molybdenum sulfide (MoS2) has emerged as a promising electrocatalyst for hydrogen evolution reaction (HER) owing to its high activity and stability during the reaction. However, the efficiency of hydrogen production is limited by the number of active sites in MoS2. In this work, a simple method of fabricating polycrystalline multilayer MoS2 on Mo foil for efficient hydrogen evolution is demonstrated by controlling the sulfur (S) vacancy concentration, which can introduce new bands and lower the hydrogen adsorption free energy (ΔGH). For the first time, theoretical and experimental results show that the HER performance of synthesized MoS2 with S vacancy can be further enhanced by the very small amount of platinum (Pt) decoration, which can introduce new gap states and more catalytic sites in real space with suitable free energy. The fabricated hybrid electrocatalyst exhibits significantly smaller Tafel slope of 38 mV dec−1 and better HER electrocatalytic activity compared to previous works. This approach provides a simple pathway to design low‐cost, efficient and sizable hydrogen‐evolving electrode by simultaneously tuning the MoS2 band structure and active sites.

show abstract

Unsaturated-sulfur-rich MoS2 nanosheets decorated on free-standing SWNT film: Synthesis, characterization and electrocatalytic application

Cited by 67 publications

References 38 publications

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

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

Electrocatalyst engineering and structure-activity relationship in hydrogen evolution reaction: From nanostructures to single atoms

Boosting Hydrogen Evolution Performance of MoS₂ by Band Structure Engineering

Contact Info

Product

Resources

About

Unsaturated-sulfur-rich MoS2 nanosheets decorated on free-standing SWNT film: Synthesis, characterization and electrocatalytic application

Cited by 67 publications

References 38 publications

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

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

Electrocatalyst engineering and structure-activity relationship in hydrogen evolution reaction: From nanostructures to single atoms

Boosting Hydrogen Evolution Performance of MoS2 by Band Structure Engineering

Contact Info

Product

Resources

About

Boosting Hydrogen Evolution Performance of MoS₂ by Band Structure Engineering