Hydrothermal synthesis of multi-walled carbon nanotubes@MoxW1 − xS2 hybrid as non-noble metal electrocatalyst for hydrogen evolution reaction

Li, Wenzhu; Li, Feng; Liu, Yang; Li, Jing; Huo, Hongfei; Chen, Huafu

doi:10.1016/j.ijhydene.2017.05.129

Cited by 14 publications

(7 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Nyquist plots of various as-prepared samples in Figure 5c reveals that MoWS-2/CC has a smallest interfacial charge transfer resistance (R ct ) of 2.427 Ω, lower than MoS 2 /CC (5.325 Ω) and MoS 2 /CC-NA (9.640 Ω), which indicates a faster kinetic rate after W doping and the emergence of more S vacancies in conformity with the analysis of the Tafel slope. The HER performance of MoWS-2/CC can be comparable to the previously reported W-doped MoS 2 electrocatalysts, such as Mo 0.92 W 0.08 S 2 (60%, 1 T), 35 MWCNTs@Mo 0.54 W 0.46 S 2 , 62 and Mo x W 1-x S 2 /CFP, 63 as shown in Table S4, which also presents other MoS 2 -based electrocatalysts in an effort to demonstrate that MoWS-2/CC can be one promising candidate for the HER process. Apart from the efficient electron transfer, the parameter of electro-chemically active surface areas (ECSAs) of the catalyst is also crucial for prominent HER performance, which can be represented by the electric double layer capacitor (C dl ).…”

Section: Electrochemical Performancesupporting

confidence: 82%

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS₂ on Enhancement of Hydrogen Evolution

Zhang

Zheng

et al. 2021

J. Phys. Chem. C

View full text Add to dashboard Cite

Molybdenum sulfide (MoS2) has extensively attracted attention as a promising nonprecious metal catalyst for the electrochemical hydrogen evolution reaction (HER). Nevertheless, synergistically enhancing the intrinsic conductivity and active sites of MoS2 is the pivotal challenge to build up its hydrogen production performance. Herein, a facile ionic liquid-assisted hydrothermal and subsequent annealing treatment strategy is first reported to synthesize W-doped MoS2 nanosheets supported on carbon cloth (Mo1‑x W x S y /CC). The experimental results prove that the substitutional W doping can effectively activate the catalytic activity of the inert basal plane of MoS2 due to the generation of sulfur vacancies. Density functional theory calculations further confirm that W doping and S vacancies reduce the band gap of MoS2 and promote the adsorption of H atoms, thereby greatly improving the HER performance. The synergistic effects of W doping and S vacancies endow this material remarkable HER performance with a low Tafel slope of 49.3 mV dec–1 and an overpotenial of 165 mV for 10 mA cm–2 in 0.5 M H2SO4 solution. In short, our new strategy provides a simple and efficient pathway to synthesize Mo1‑x W x S y /CC, and it can be applied to the design of other materials possessing multifarious merits.

show abstract

Section: Electrochemical Performancesupporting

confidence: 82%

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS₂ on Enhancement of Hydrogen Evolution

Zhang

Zheng

et al. 2021

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

“…Other carbon materials such as RGO, [171,187] graphene, [153,159] CNT, [30,162] carbon fiber, [164,166] have also been used as supports, which can also improve the electrocatalytic performance of WS 2 .…”

Section: Ws 2 /Carbon Materialsmentioning

confidence: 99%

Recent Advances in Layered Tungsten Disulfide as Electrocatalyst for Water Splitting

Wen

Zhang

et al. 2020

ChemCatChem

View full text Add to dashboard Cite

Electrocatalytic decomposition of water is an effective method to solve the energy and environmental crisis brought about by fossil fuel combustion. Due to its low cost and abundant resources, non-precious metal catalysts have achieved rapid development and are widely used in the electrolysis of water. Among these catalysts, WS 2 is known as a potential candidate for water decomposition catalysts because of its unique physical and chemical properties and crystal structure. Therefore, we summarize the application of WS 2 in the field of electrolysis water splitting. First, the crystal structure, the principle of HER/OER, and the performance evaluation parameters are introduced. Then it focuses on the preparation and structure control of WS 2 , the method, and the mechanism of performance optimization. Finally, the research on theoretical calculations of WS 2 and a discussion about the opportunities and challenges of WS 2 as electrocatalyst in the future are summarized. To improve the readability of this review, a concise overview at the end of each section gives some of the characteristics and trends of the studies in the corresponding part.

show abstract

“…S3a †). The peaks correspond to the formation of (002), (004), (100), (103), and (110) lattice planes 44 in ternary alloys (Fig. 1b).…”

Section: Resultsmentioning

confidence: 99%

TMDC ternary alloy–based triboelectric nanogenerators with giant photo-induced enhancement

Bhattacharya,

Mukherjee,

Mitra

et al. 2023

Nanoscale

View full text Add to dashboard Cite

show abstract

Hydrothermal synthesis of multi-walled carbon nanotubes@MoxW1 − xS2 hybrid as non-noble metal electrocatalyst for hydrogen evolution reaction

Cited by 14 publications

References 38 publications

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS₂ on Enhancement of Hydrogen Evolution

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS₂ on Enhancement of Hydrogen Evolution

Recent Advances in Layered Tungsten Disulfide as Electrocatalyst for Water Splitting

TMDC ternary alloy–based triboelectric nanogenerators with giant photo-induced enhancement

Contact Info

Product

Resources

About

Hydrothermal synthesis of multi-walled carbon nanotubes@MoxW1 − xS2 hybrid as non-noble metal electrocatalyst for hydrogen evolution reaction

Cited by 14 publications

References 38 publications

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS2 on Enhancement of Hydrogen Evolution

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS2 on Enhancement of Hydrogen Evolution

Recent Advances in Layered Tungsten Disulfide as Electrocatalyst for Water Splitting

TMDC ternary alloy–based triboelectric nanogenerators with giant photo-induced enhancement

Contact Info

Product

Resources

About

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS₂ on Enhancement of Hydrogen Evolution

Synergistic Effects of Tungsten Doping and Sulfur Vacancies in MoS₂ on Enhancement of Hydrogen Evolution