Synthesis and characterization of vertically standing MoS2 nanosheets

Han, Lin‐Hai; Wu, Huayue; Yuan, Shuoguo; Qian, He

doi:10.1038/srep21171

Cited by 178 publications

(193 citation statements)

References 51 publications

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“…The Tafel slope in our vertically standing triangles was about 54 mV/decade. The related reports about vertically standing structures of MoS 2 is about 94 mV/dec10 and 105–120 mV/dec23. Tafel plots are commonly used to evaluate the efficiency of the catalytic reaction.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Vertically Standing MoS2 Triangles on SiC

Lan

Lai

et al. 2016

Sci Rep

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Layered material MoS2 has been attracting much attention due to its excellent electronical properties and catalytic property. Here we report the synthesis of vertically standing MoS2 triangles on silicon carbon(SiC), through a rapid sulfidation process. Such edge-terminated films are metastable structures of MoS2, which may find applications in FinFETs and catalytic reactions. We have confirmed the catalytic property in a hydrogen evolution reaction(HER). The Tafel slope is about 54mV/decade.

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Section: Methodsmentioning

confidence: 99%

Synthesis of Vertically Standing MoS2 Triangles on SiC

Lan

Lai

et al. 2016

Sci Rep

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“…The IG:ID of the sample was calculated to be 1.10, indicative of decent graphitization. In addition, the Raman shifts of 380 and 405 cm -1 corresponded to E 2g 1 and A1g modes of MoS2, which were first order Raman vibrational modes within the S-Mo-S layers [26][27]. Schematic illustration of the modes was inserted in Figure 2b.…”

Section: Insert Figurementioning

confidence: 99%

Carbon-Infused MoS2 Supported on TiO2 Nanosheet Arrays for Intensified Anodes in Lithium Ion Batteries

Luo

et al. 2016

Electrochimica Acta

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Graphite anodes in commercialized lithium ion batteries are meeting the bottleneck for future high-performance electronic devices. Strategies has been applied to improve the cycle and rate capacity of the anode active materials. Herein, a two-step hydrothermal approach is presented to synthesize TiO2@MoS2/C as enhanced anodic electrode. The TiO2@MoS2/C electrode delivers a satisfying cycle performance of 643.4 mAh/g on average at a current of 100 mA/g upon 100 cycles. The comparison study shows that TiO2@MoS2/C are superior to its individual part when assembled into batteries. The result also demonstrates that the support from TiO2 nanosheet arrays is essential to achieve both improved cycle and rate performance. Without TiO2 scaffold as an intermediate, MoS2/C is not able to firmly attach to Ti substrate and tends to be exfoliated upon cycling. Besides, the presence of carbon remarkably improves the poor conductivity of TiO2 and MoS2, which is beneficial to elevate rate capacity at high currents.Keywords：TiO2@MoS2/C; carbon infused MoS2; TiO2 nanosheet arrays; intensified anodes

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“…For example, Cui's group [17] prepared MoS 2 thin films with vertically aligned to maximally expose the edges grown on flat substrates by chemical vapor deposition method and favor the HER performances. Li et al [21] synthesized vertically standing MoS 2 nanosheets via a similar procedure, gave improved exchange current density in compare with bulk MoS 2 . However, the extremely low electrical conductivity of MoS 2 nanostructure, especially along the adjacent interlayers hampers the electron transfer for highly efficient HER.…”

Section: Introductionmentioning

confidence: 99%

Controllable nanoscale engineering of vertically aligned MoS2 ultrathin nanosheets by nitrogen doping of 3D graphene hydrogel for improved electrocatalytic hydrogen evolution

Zhao

Hong

Lin

et al. 2017

Carbon

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a b s t r a c tThree-dimensional (3D) porous molybdenum disulfide/nitrogen-doped reduced graphene oxide (MoS 2 / N-rGO) hydrogels were fabricated through a facile and controllable one-pot hydrothermal method. The nanosized MoS 2 ultrathin nanosheets were uniformly and vertically dispersed on the rGO framework after nitrogen incorporation. The incorporated nitrogen in rGO played a key role for nano-scaling of MoS 2 due to the protonation at pyridinic N-doping sites on carbon surface. The vertically aligned edge of nanosized MoS 2 sheets, nitrogen incorporation of rGO and 3D network structure made the MoS 2 /N-rGO highly efficient for hydrogen evolution reaction, with improved double-layer capacitance and turnover frequency, small onset overpotential of 119 mV, low Tafel slope of 36 mV$decade À1 and superior longtime catalytic stability.

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Synthesis and characterization of vertically standing MoS2 nanosheets

Cited by 178 publications

References 51 publications

Synthesis of Vertically Standing MoS2 Triangles on SiC

Synthesis of Vertically Standing MoS2 Triangles on SiC

Carbon-Infused MoS2 Supported on TiO2 Nanosheet Arrays for Intensified Anodes in Lithium Ion Batteries

Controllable nanoscale engineering of vertically aligned MoS2 ultrathin nanosheets by nitrogen doping of 3D graphene hydrogel for improved electrocatalytic hydrogen evolution

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