Efficient etching of oxygen-incorporated molybdenum disulfide nanosheet arrays for excellent electrocatalytic hydrogen evolution

Yang, Xiao‐Yu; Li, Xiaoyun; Wang, Yi Long; Ye, Cuifang; Du, Zuokai; Yu, Huogen; Liu, Jinping; Chen, Lihua; Su, Bao‐Lian

doi:10.1016/j.apsusc.2019.06.153

Cited by 23 publications

(3 citation statements)

References 62 publications

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“…Therefore, it is necessary to develop efficient and stable OER electrocatalysts to promote the development of relevant renewable energy equipment [36][37][38]. In the precious metal group, ruthenium (Ru) has excellent catalytic activity and a lower cost; therefore, Ru−based nanocomposites and Ru−based nanocomposites compounded with a second metal have been widely used for efficient electrocatalysis in water−splitting systems [39][40][41]. The structure of precious metal−doped 2D carbon−based electrocatalysts is shown in Figure 1a.…”

Section: Precious Metal−doped 2d Carbon-based Electrocatalystsmentioning

confidence: 99%

Recent Developments in Two-Dimensional Carbon-Based Nanomaterials for Electrochemical Water Oxidation: A Mini Review

Zhao,

Niu,

et al. 2024

Catalysts

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Water splitting is considered a renewable and eco−friendly technique for future clean energy requirements to realize green hydrogen production, which is, to a large extent, hindered by the oxygen evolution reaction (OER) process. In recent years, two−dimensional (2D) carbon−based electrocatalysts have drawn sustained attention owing to their good electrical conductivity, unique physicochemical properties, and excellent electrocatalytic performance. Particularly, it is easy for 2D carbon−based materials to form nanocomposites, which further provides an effective strategy for electrocatalytic applications. In this review, we discuss recent advances in synthetic methods, structure−property relationships, and a basic understanding of electrocatalytic mechanisms of 2D carbon−based electrocatalysts for water oxidation. In detail, precious, non−precious metal−doped, and non−metallic 2D carbon−based electrocatalysts, as well as 2D carbon−based confined electrocatalysts, are introduced to conduct OER. Finally, current challenges, opportunities, and perspectives for further research directions of 2D carbon−based nanomaterials are outlined. This review can provide significant comprehension of high−performance 2D carbon−based electrocatalysts for water-splitting applications.

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Section: Precious Metal−doped 2d Carbon-based Electrocatalystsmentioning

confidence: 99%

Recent Developments in Two-Dimensional Carbon-Based Nanomaterials for Electrochemical Water Oxidation: A Mini Review

Zhao,

Niu,

et al. 2024

Catalysts

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“…Following this viewpoint, extensive techniques, such as 2H/1T phase transition, expanding interlayer, doping transition metals (TMs), ,, and wet chemical etching, , have been launched to stimulate the inert basal plane on MoS 2 for the advancement of electrocatalytic hydrogen evolution. Among them, in-plane defect engineering of sulfur vacancies (S-vacancies) toward MoS 2 ,− is regarded as an efficient avenue for electrocatalytic HER due to the fact that the exposed Mo atoms (EMAs) can be designed as newborn active sites besides the unsaturated sulfur atoms.…”

Section: Introductionmentioning

confidence: 99%

Boosting Highly Active Exposed Mo Atoms by Fine-Tuning S-Vacancies of MoS₂-Based Materials for Efficient Hydrogen Evolution

Lian

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Guided by the theoretical calculation, achieving an efficient hydrogen evolution reaction (HER) by S-vacancy engineering toward MoS2-based materials is quite challenging due to the contradictory relationship between the adsorption free energy of hydrogen atoms (ΔG H) of the exposed Mo atoms (EMAs) and the number of EMAs per unit area (N EMAs). Herein, we demonstrate a novel one-pot incorporating-assisted compositing strategy to realize fine-tuning the concentration of S-vacancies (C S‑vacancies) of MoS2-based materials to boost highly active EMAs for efficient HER. In our strategy, S-vacancies are modulated into basal planes of MoS2 via decreasing the formation energy of S-vacancies by oxygen incorporation; moreover, C S‑vacancies of the basal planes is precisely regulated by simply controlling the molar amount of the Co precursor based on the electron injection effect. At low or excessively high C S‑vacancies, the as-synthesized electrocatalysts lack “highly active EMAs” in quantity or nature. The balance between the intrinsic activity of EMAs and N EMAs is realized for boosting EMAs with high catalytic performance. The optimal electrocatalysts exhibit excellent activity and stability at fine-tuning C S‑vacancies to 9.61%. Our results will pave a novel strategy for unlocking the potential of an inert basal plane in MoS2 for high-performance HER.

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“…It can be seen that Ir–Cu/C exhibits lower charge-transfer resistance ( R ct = 1.99 Ω) than that of Ir/Cu–BDC ( R ct = 335.4 Ω), indicating the enhancement of the charge transfer kinetics at the interfacial region. 25 Fig. S8 (ESI†) exhibits the cyclic voltammetry curves of samples within the appropriate potential range, and the electrochemical double-layer capacitance C dl was calculated.…”

mentioning

confidence: 99%

Preparation of Ir–Cu/C nanosheets for the oxygen evolution reaction by room temperature plasma carbonization

Zhou,

He,

et al. 2023

Chem. Commun.

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Efficient etching of oxygen-incorporated molybdenum disulfide nanosheet arrays for excellent electrocatalytic hydrogen evolution

Cited by 23 publications

References 62 publications

Recent Developments in Two-Dimensional Carbon-Based Nanomaterials for Electrochemical Water Oxidation: A Mini Review

Recent Developments in Two-Dimensional Carbon-Based Nanomaterials for Electrochemical Water Oxidation: A Mini Review

Boosting Highly Active Exposed Mo Atoms by Fine-Tuning S-Vacancies of MoS₂-Based Materials for Efficient Hydrogen Evolution

Preparation of Ir–Cu/C nanosheets for the oxygen evolution reaction by room temperature plasma carbonization

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Efficient etching of oxygen-incorporated molybdenum disulfide nanosheet arrays for excellent electrocatalytic hydrogen evolution

Cited by 23 publications

References 62 publications

Recent Developments in Two-Dimensional Carbon-Based Nanomaterials for Electrochemical Water Oxidation: A Mini Review

Recent Developments in Two-Dimensional Carbon-Based Nanomaterials for Electrochemical Water Oxidation: A Mini Review

Boosting Highly Active Exposed Mo Atoms by Fine-Tuning S-Vacancies of MoS2-Based Materials for Efficient Hydrogen Evolution

Preparation of Ir–Cu/C nanosheets for the oxygen evolution reaction by room temperature plasma carbonization

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Boosting Highly Active Exposed Mo Atoms by Fine-Tuning S-Vacancies of MoS₂-Based Materials for Efficient Hydrogen Evolution