In situ preparation of a Co4S3-based electrocatalyst by taking advantage of the controllable components of metal–organic frameworks

Li, Tang-Ming; Hu, Bingqian; Han, Jinghua; Lu, Wenxian; Yu, Fan; Li, Bao

doi:10.1039/d2dt00463a

Cited by 7 publications

(1 citation statement)

References 49 publications

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“…The richer electron density of the TM center in Zr L3 -TM probably originates from the S-pendants, where S atoms donate electrons to TM centers via TM–S bond formation. Interestingly, the binding energies of S 2p peaks (signals assigned as 2p 3/2 and 2p 1/2 of −SCH 3 − ) shift negatively instead of going to the positive side after the introduction of TM ions (S 2p signals: from 163.75 and 165.03 to 163.34, 163.46 and 164.11, 164.60 eV, respectively; Figures d, S33b, and Table S4). The strayed S 2p binding energies presumably originate from the donation of electrons from TM centers to S-pendants through π-backbonding from 3d orbitals of the TM center to vacant 3d orbitals of the S atom.…”

Section: Resultsmentioning

confidence: 99%

Microenvironment Regulation of Metal–Organic Frameworks to Anchor Transition Metal Ions for the Electrocatalytic Hydrogen Evolution Reaction

Chen

Zhou

et al. 2022

Inorg. Chem.

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Bearing triazine-centered linkers, three primitive metal−organic frameworks (MOFs) with a Zr 6 O 4 cluster have been prepared as ZrL1 (without any branch), ZrL2 (with −F), and ZrL3 (with −SCH 3 ). The electrocatalytic hydrogen evolution reaction (HER) by their pristine and transition metal-loaded (TMloaded) forms was studied. It was found that the loading of TM ions could enhance the electrocatalytic power of these TM-loaded MOFs in HER, as reflected by their lower overpotentials and smaller Tafel slopes when compared with primitive MOFs. More importantly, the best electrocatalytic HER performance of ZrL3-TM among all TM-loaded MOFs studied in this work highlights the effective housing of TM ions for unambiguous active sites through cooperative coordination by triazinic N and thioether pendants. This work proposes microenvironment regulation of MOFs as an effective strategy to enhance the electrocatalytic activity of MOF materials.

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Section: Resultsmentioning

confidence: 99%

Microenvironment Regulation of Metal–Organic Frameworks to Anchor Transition Metal Ions for the Electrocatalytic Hydrogen Evolution Reaction

Chen

Zhou

et al. 2022

Inorg. Chem.

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CoPS/Co₄S₃ Heterojunction with Highly Exposed Active Sites and Dual‐site Synergy for Effective Hydrogen Evolution Reactions

Song,

Yang,

Zhou

et al. 2024

Chemistry A European J

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Cobalt phosphosulphide (CoPS) has recently been recognized as a potentially effective electrocatalyst for the hydrogen evolution reaction (HER). However, there have been no research on the design of CoPS‐based heterojunctions to boost their HER performance. Herein, CoPS/Co4S3 heterojunction was prepared by phosphating treatment based on defect‐rich flower‐like Co1‐xS precursors. The high specific surface area of nanopetals, together with the heterojunction structure with inhomogeneous strain, exposes more active sites in the catalyst. The electronic structure of the catalyst is reconfigured as a result of the interfacial interactions, which promote the catalyst's ability to adsorb hydrogen and conduct electricity. The synergistic effect of the Co and S dual‐site further enhance the catalytic activity. The catalyst has overpotentials of 61 and 70 mV to attain a current density of 10 mA cm‐2 in acidic and alkaline media, respectively, which renders it competitive with previously reported analogous catalysts. This work proposes an effective technique for constructing transition metal phosphosulfide heterojunctions, as well as the development of an efficient HER electrocatalyst.

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Preparation and Assembly of Reusable Components Based on Software Architecture

Zhang¹,

Li²,

Chen³

et al. 2023

Lecture Notes on Data Engineering and Communications Technologies

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In situ preparation of a Co₄S₃-based electrocatalyst by taking advantage of the controllable components of metal–organic frameworks

Abstract: In order to give full play to the advantages in structure tailoring and quantitative assembly, Metal-Organic Frameworks (MOFs) with different topological structures formed by self-assembly of inorganic ligands containing sulfur,...

Cited by 7 publications

References 49 publications

Microenvironment Regulation of Metal–Organic Frameworks to Anchor Transition Metal Ions for the Electrocatalytic Hydrogen Evolution Reaction

Microenvironment Regulation of Metal–Organic Frameworks to Anchor Transition Metal Ions for the Electrocatalytic Hydrogen Evolution Reaction

CoPS/Co₄S₃ Heterojunction with Highly Exposed Active Sites and Dual‐site Synergy for Effective Hydrogen Evolution Reactions

Preparation and Assembly of Reusable Components Based on Software Architecture

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In situ preparation of a Co4S3-based electrocatalyst by taking advantage of the controllable components of metal–organic frameworks

Abstract: In order to give full play to the advantages in structure tailoring and quantitative assembly, Metal-Organic Frameworks (MOFs) with different topological structures formed by self-assembly of inorganic ligands containing sulfur,...

Cited by 7 publications

References 49 publications

Microenvironment Regulation of Metal–Organic Frameworks to Anchor Transition Metal Ions for the Electrocatalytic Hydrogen Evolution Reaction

Microenvironment Regulation of Metal–Organic Frameworks to Anchor Transition Metal Ions for the Electrocatalytic Hydrogen Evolution Reaction

CoPS/Co4S3 Heterojunction with Highly Exposed Active Sites and Dual‐site Synergy for Effective Hydrogen Evolution Reactions

Preparation and Assembly of Reusable Components Based on Software Architecture

Contact Info

Product

Resources

About

In situ preparation of a Co₄S₃-based electrocatalyst by taking advantage of the controllable components of metal–organic frameworks

CoPS/Co₄S₃ Heterojunction with Highly Exposed Active Sites and Dual‐site Synergy for Effective Hydrogen Evolution Reactions