A simple method for synthesizing Co, P-codoped MoS2 nanoflowers as electrocatalysts to enhance hydrogen evolution reaction

Gu, Xinxin; Zhang, Lu; Ma, Xiangyu; Wang, Jialing; Shang, Xinyue; Wang, Zuoxiang; Kandawa‐Schulz, Martha; Song, Wei; Wang, Yihong

doi:10.1007/s11581-022-04506-6

Cited by 9 publications

(10 citation statements)

References 54 publications

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“…For instance, Gu et al fabricated nanoflower-like MoS 2 featuring a porous structure and flaws via a hydrothermal method (Figure 31a). 235 The prepared sample possesses an ultrathin layered structure, as confirmed by HR-TEM images shown in Figure 31b-c, further validating the layered structure of MoS 2 . Additionally, the material's simple synthetic process and the affordability and accessibility of its basic components render it suitable for widespread industrial hydrogen production.…”

Section: Multiple Nonmetal Atoms Codoping Insupporting

confidence: 68%

“…This approach capitalizes on the synergistic advantages of various single atom doping methods. 235 The codoping approach demonstrates a dual activation capability by simultaneously activating different sites, augmenting the count of catalytic sites, and enhancing inherent qualities, thus yielding a synthesized catalytic performance superior to that of monodoped catalysts (Table 3). due to the rigid and complex reaction conditions required by some modification strategies (Figure 34).…”

Section: Effect Of Dopingmentioning

confidence: 99%

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Recent Advances in Doping Strategies to Improve Electrocatalytic Hydrogen Evolution Performance of Molybdenum Disulfide

Jia,

Zhang,

et al. 2024

ACS Catal.

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The exhaustion of fossil fuels and resultant pollution issues have prompted the world to look to clean, nonpolluting hydrogen energy. The promising approach of the electrocatalytic hydrogen evolution reaction (HER) presents a solution for addressing energy and environmental challenges. Consequently, creating high-performance and cost-effective electrocatalysts is essential for the efficient decomposition of water. Molybdenum disulfide (MoS 2 ) has emerged as the most promising among potential electrocatalysts to replace platinum. However, only the edge-site of MoS 2 is active for HER due to the MoS 2 semiconductive nature and large inactive basal planes. Doping various substances, which significantly improves HER activity, can enhance MoS 2 's physical and chemical properties. Our Review encapsulates the latest strategies and research advancements in choosing heteroatomic-doped MoS 2 for hydrogen production. Various doping elements impart unique physical and chemical properties to MoS 2 . Specifically, doping with noble metals (e.g., Ag, Pt, Ru, Pd, Rh) and transition metals (e.g., Fe, V, Ni, Mn, Co, Zn, W), as well as codoping with multiple metal atoms (e.g., Cu-Pd, Pt-Te, Co-Nb, Ni-Co), can significantly enhance conductivity and introduce new active sites. These dopants are recognized for activating the basal plane of MoS 2 , thereby enhancing the HER activity. Furthermore, doping with nonmetallic elements (e.g., N, F, P, An, O) and their codoping combinations (e.g., O-P, N-F, Se-O), as well as the codoping of nonmetal and metal atoms (e.g., Co-Se, Co-P, N-Pt, Ru-O), is crucial for inducing phase conversions and improving stability. Each dopant contributes distinctively, either by enhancing the stability of MoS 2 , serving as a catalytic site, or broadening the pH range for effective HER. In this discussion, we further explore the current challenges and outlook of this promising area. Furthermore, we discuss existing challenges and promising guidelines for future research on the MoS 2 -based catalyst, offering advice to translation from laboratory research to large-scale industrial hydrogen production.

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Section: Multiple Nonmetal Atoms Codoping Insupporting

confidence: 68%

Section: Effect Of Dopingmentioning

confidence: 99%

Recent Advances in Doping Strategies to Improve Electrocatalytic Hydrogen Evolution Performance of Molybdenum Disulfide

Jia,

Zhang,

et al. 2024

ACS Catal.

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“…The peaks at binding energies of 229.09 and 232.32 eV (Figure 3h) ascribed to Mo 4+ 3d 5/2 and Mo 4+ 3d 3/2 , respectively, are the typical surface features of MoS 2 synthesized from solution-based reaction routes. 51,52 Additionally, the peak at 235.47 eV is typically associated with a surface-oxidized Mo +6 impurity and is invariably observed in Mo 3d XPS of MoS 2 . Finally, the deconvoluted S 2p XPS (Figure 3i) stays on the expected lines with the presence of the MoS 2 component in the composite catalyst.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Composite Metal–Organic Framework-Derived NiCoP/MoS₂ Heterostructure with Superior Electrocatalytic Credentials for Urea and Methanol Oxidation

2023

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The urea oxidation reaction (UOR) and methanol oxidation reaction (MOR) are the most practical alternative counter-reactions to the hydrogen evolution reaction in the overall electrochemical water splitting process. The thermodynamic gains in terms of lower water-splitting potentials compared to the oxygen evolution reaction (OER) can be cashed in if the kinetics of the UOR and MOR can suitably be controlled. This has called for the development of suitable cost-effective and non-precious catalysts for the processes. Herein, we report the synthesis of a heterostructured composite catalyst that incorporates the versatile NiCoP and MoS 2 components through a composite MOF degradation route for efficient UOR and MOR catalysis in an alkaline medium (0.5 M NaOH). The intimate union of the components generates the strong synergistic influence of catalytically active phosphide and sulfide components toward excellent electrocatalytic UOR and MOR performance. The cyclic voltammetry and linear sweep voltammetry analyses reveal anodic UOR and MOR peak currents of 92.5 and 214.2 mA cm −2 , respectively. Also, a benchmark current of 50 mA cm −2 is achieved at voltages of 1.55 and 1.53 V versus the reversible hydrogen electrode for the UOR and MOR, respectively, which reflects a considerable kinetic facility over the OER. The electrochemical impedance (EIS) measurements reveal considerably enhanced kinetics over the control samples and the OER on the catalyst systems. Additionally, the catalytic synergism is clearly reflected as the catalytic credentials of the composite catalysts surpass those of the individual control samples significantly. The catalytic features compare well with the best catalysts reported for the UOR and MOR in the alkaline medium.

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“…The ECSA was calculated from the ratio of the measured C dl with respect to the specific capacitance of an atomically smooth MoS 2 material . The ECSA of MoS 2 was calculated using eq ECSA = C dl C normals where C s is the specific capacitance and C s = 0.060 mF/cm 2 in a 0.5 M H 2 SO 4 electrolyte based on the reported values. – …”

Section: Resultsmentioning

confidence: 99%

Defect Engineering of MoS₂ Nanosheets by Heavy-Ion Irradiation for Hydrogen Evolution

Dong,

Yang,

Yue

et al. 2023

ACS Appl. Nano Mater.

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Molybdenum disulfide (MoS 2 ), a very promising nonprecious catalyst with high hydrogen evolution reaction (HER) catalytic activity, has been extensively studied for its excellent properties. Nonmetal doping and defects can effectively improve the electrocatalytic activity of MoS 2 electrocatalysts, but a lack of systematic studies on nonmetal doping and defect engineering hinders further design and improvement of the MoS 2 electrocatalysts. Herein, a novel strategy is proposed to improve the HER performance of MoS 2 via heavy-ion irradiation. Theoretical calculations show that fluorine (F), as a doping element, exhibits an excellent HER performance of MoS 2 . Doping and defect engineering are combined by irradiating MoS 2 using an F − ion beam with controllable fluence to verify whether F − ions can effectively regulate the electrical structure of MoS 2 and contribute to its HER efficiency. This work provides a strong theoretical basis and experimental support for the rational design of the MoS 2 electrocatalysts and expands the understanding of the optimization of the electrocatalytic activity of other catalysts.

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A simple method for synthesizing Co, P-codoped MoS2 nanoflowers as electrocatalysts to enhance hydrogen evolution reaction

Cited by 9 publications

References 54 publications

Recent Advances in Doping Strategies to Improve Electrocatalytic Hydrogen Evolution Performance of Molybdenum Disulfide

Recent Advances in Doping Strategies to Improve Electrocatalytic Hydrogen Evolution Performance of Molybdenum Disulfide

Composite Metal–Organic Framework-Derived NiCoP/MoS₂ Heterostructure with Superior Electrocatalytic Credentials for Urea and Methanol Oxidation

Defect Engineering of MoS₂ Nanosheets by Heavy-Ion Irradiation for Hydrogen Evolution

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A simple method for synthesizing Co, P-codoped MoS2 nanoflowers as electrocatalysts to enhance hydrogen evolution reaction

Cited by 9 publications

References 54 publications

Recent Advances in Doping Strategies to Improve Electrocatalytic Hydrogen Evolution Performance of Molybdenum Disulfide

Recent Advances in Doping Strategies to Improve Electrocatalytic Hydrogen Evolution Performance of Molybdenum Disulfide

Composite Metal–Organic Framework-Derived NiCoP/MoS2 Heterostructure with Superior Electrocatalytic Credentials for Urea and Methanol Oxidation

Defect Engineering of MoS2 Nanosheets by Heavy-Ion Irradiation for Hydrogen Evolution

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Product

Resources

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Composite Metal–Organic Framework-Derived NiCoP/MoS₂ Heterostructure with Superior Electrocatalytic Credentials for Urea and Methanol Oxidation

Defect Engineering of MoS₂ Nanosheets by Heavy-Ion Irradiation for Hydrogen Evolution