Enabling Colloidal Synthesis of Edge-Oriented MoS<sub>2</sub> with Expanded Interlayer Spacing for Enhanced HER Catalysis

Sun, Yugang; Alimohammadi, Farbod; Zhang, Dongtang; Guo, Guangsheng

doi:10.1021/acs.nanolett.6b05346

Cited by 234 publications

(158 citation statements)

References 38 publications

(65 reference statements)

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“…No signals from other impurities can be observed. In the XRD pattern of N, O‐MoS 2 sample, the diffraction peak at 9.4° can be assigned to the expanded (002) diffraction of N, O‐MoS 2 phase . The larger layer spacing is the result of nitrogen atom and oxygen atom intercalation, as revealed previously .…”

Section: Resultssupporting

confidence: 84%

3D Hierarchical N, O Co–Doped MoS₂/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

Chen

et al. 2019

ChemistrySelect

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The exploitation of efficient noble metal free catalyst for nitrophenols is of great importance. Herein, 3D hierarchical N, O‐MoS2/NiO hollow microspheres have been successfully prepared via a facile hydrothermal method. Characterizations reveal that the as‐obtained hollow microspheres were assembled by amorphous N, O co‐doped MoS2 and NiO nanosheets. Catalytic experiments show that the hollow microspheres displayed remarkably enhanced catalytic activity for 2, 3, 4‐nitrophenol reduction with the kapp reaching 1.72 min−1 for 4‐nitrophenol, among the best reported non‐noble metal catalysts. The greatly enhanced catalytic activity is attributed to the synergistic effects of abundant exposed catalytic edge sites, intimate P−N heterojunction between NiO and N, O‐MoS2, as well as the hollow porous structure. Moreover, the recovered N, O‐MoS2/NiO hollow microspheres can be reused in successive 8 cycles without much losing its activity. These results suggest that the novel N, O‐MoS2/NiO hollow microspheres had significant application potential for wastewater treatment.

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Section: Resultssupporting

confidence: 84%

3D Hierarchical N, O Co–Doped MoS₂/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

Chen

et al. 2019

ChemistrySelect

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“…37-1492). [31] Moreover, the broadening in (002) diffraction peak indicates that the MoS-CoS hybrid is thinner than the pristine MoS (≈15 S-Mo-S layers) and has an average thickness of 6.47 nm, which corresponds to ≈10 S-Mo-S layers. 41-1471).…”

Section: Doi: 101002/advs201900140mentioning

confidence: 99%

Stimulated Electrocatalytic Hydrogen Evolution Activity of MOF‐Derived MoS₂ Basal Domains via Charge Injection through Surface Functionalization and Heteroatom Doping

Yilmaz

Yang

et al. 2019

Advanced Science

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The design of MoS 2 ‐based electrocatalysts with exceptional reactivity and robustness remains a challenge due to thermodynamic instability of active phases and catalytic passiveness of basal planes. This study details a viable in situ reconstruction of zinc–nitrogen coordinated cobalt–molybdenum disulfide from structure directing metal–organic framework (MOF) to constitute specific heteroatomic coordination and surface ligand functionalization. Comprehensive experimental spectroscopic studies and first‐principle calculations reveal that the rationally designed electron‐rich centers warrant efficient charge injection to the inert MoS 2 basal planes and augment the electronic structure of the inactive sites. The zinc–nitrogen coordinated cobalt–molybdenum disulfide shows exceptional catalytic activity and stability toward the hydrogen evolution reaction with a low overpotential of 72.6 mV at −10 mA cm −2 and a small Tafel slope of 37.6 mV dec −1 . The present study opens up a new opportunity to stimulate catalytic activity of the in‐plane MoS 2 basal domains for enhanced electrochemistry and redox reactivity through a “molecular reassembly‐to‐heteroatomic coordination and surface ligand functionalization” based on highly adaptable MOF template.

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“…Therefore, low‐cost, highly efficient, and stable long‐term electrocatalysts for water splitting are needed. Currently, transition‐metal (Fe, Co, Ni, Mn, and Mo)‐based catalysts including metal oxides,23, 24, 25, 26, 27, 28, 29, 30 hydroxides,31, 32, 33, 34, 35 phosphides,36, 37, 38, 39, 40, 41, 42 sulfides,43, 44, 45, 46, 47, 48 selenides,49, 50, 51, 52, 53, 54 and nitrides55, 56, 57, 58, 59, 60, 61, 62 have been highlighted as the most promising candidates of OER and HER electrocatalysts. Especially, layered double hydroxides (LDHs)63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85 and their derivatives (metal hydroxides, oxyhydroxides, oxides, bimetal nitrides, phosphides, sulfides, and selenides)86, 87, 88, 89, 9...…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Layered Double Hydroxides and Their Derivatives for Electrocatalytic Water Splitting

et al. 2018

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Layered double hydroxide (LDH)‐based materials have attracted widespread attention in various applications due to their unique layered structure with high specific surface area and unique electron distribution, resulting in a good electrocatalytic performance. Moreover, the existence of multiple metal cations invests a flexible tunability in the host layers; the unique intercalation characteristics lead to flexible ion exchange and exfoliation. Thus, their electrocatalytic performance can be tuned by regulating the morphology, composition, intercalation ion, and exfoliation. However, the poor conductivity limits their electrocatalytic performance, which therefore has motivated researchers to combine them with conductive materials to improve their electrocatalytic performance. Another factor hampering their electrocatalytic activity is their large lateral size and the bulk thickness of LDHs. Introducing defects and tuning electronic structure in LDH‐based materials are considered to be effective strategies to increase the number of active sites and enhance their intrinsic activity. Given the unique advantages of LDH‐based materials, their derivatives have been also used as advanced electrocatalysts for water splitting. Here, recent progress on LDHs and their derivatives as advanced electrocatalysts for water splitting is summarized, current strategies for their designing are proposed, and significant challenges and perspectives of LDHs are discussed.

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Enabling Colloidal Synthesis of Edge-Oriented MoS₂ with Expanded Interlayer Spacing for Enhanced HER Catalysis

Cited by 234 publications

References 38 publications

3D Hierarchical N, O Co–Doped MoS₂/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

3D Hierarchical N, O Co–Doped MoS₂/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

Stimulated Electrocatalytic Hydrogen Evolution Activity of MOF‐Derived MoS₂ Basal Domains via Charge Injection through Surface Functionalization and Heteroatom Doping

Recent Progress on Layered Double Hydroxides and Their Derivatives for Electrocatalytic Water Splitting

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Enabling Colloidal Synthesis of Edge-Oriented MoS2 with Expanded Interlayer Spacing for Enhanced HER Catalysis

Cited by 234 publications

References 38 publications

3D Hierarchical N, O Co–Doped MoS2/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

3D Hierarchical N, O Co–Doped MoS2/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

Stimulated Electrocatalytic Hydrogen Evolution Activity of MOF‐Derived MoS2 Basal Domains via Charge Injection through Surface Functionalization and Heteroatom Doping

Recent Progress on Layered Double Hydroxides and Their Derivatives for Electrocatalytic Water Splitting

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Resources

About

Enabling Colloidal Synthesis of Edge-Oriented MoS₂ with Expanded Interlayer Spacing for Enhanced HER Catalysis

3D Hierarchical N, O Co–Doped MoS₂/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

3D Hierarchical N, O Co–Doped MoS₂/NiO Hollow Microspheres as Reusable Catalyst for Nitrophenols Reduction

Stimulated Electrocatalytic Hydrogen Evolution Activity of MOF‐Derived MoS₂ Basal Domains via Charge Injection through Surface Functionalization and Heteroatom Doping