Electronically modulated bimetallic telluride nanodendrites atop 2D nanosheets using a vanadium dopant enabling a bifunctional electrocatalyst for overall water splitting

Pathak, Ishwor; Muthurasu, Alagan; Acharya, Debendra; Chhetri, Kisan; Dahal, Bipeen; Rosyara, Yagya Raj; Kim, Taewoo; Ko, Tae Hoon; Kim, Hak Yong

doi:10.1039/d4ta01929f

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta01929f

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Electronically modulated bimetallic telluride nanodendrites atop 2D nanosheets using a vanadium dopant enabling a bifunctional electrocatalyst for overall water splitting

Ishwor Pathak,

Alagan Muthurasu,

Debendra Acharya

et al.

Abstract: A bimetallic telluride heterojunction is electronically modulated by vanadium doping, resulting in remarkable catalytic activity for hydrogen evolution, oxygen evolution, and overall water-splitting.

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Cited by 9 publications

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Recent Advances in Electronic Structure Modifications of Layered Double Hydroxide (LDH) for the Water Splitting Application

Gaur,

Sharma,

Lim

et al. 2024

ChemCatChem

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Electrocatalytic water splitting is a feasible method for large‐scale hydrogen production. Recently, layered double hydroxides (LDH) have been identified as a possible candidate for accelerating the water splitting process. Nevertheless, certain structural alterations are necessary for immaculate LDH because of their weak electrocatalytic activity. These structural changes alter the local reaction environment by modulating the electronic structure of the metal centre present in the LDH. This electronic structure tailoring is accomplished by a variety of processes, including heteroatom doping, single atom inclusion, cationic defect, oxygen vacancy creation, and heterostructure formation. Recently, there has been an uptick of advancement in this field, and it is necessary to summarize these developments. This review provides a concise summary of the current reports on the electronic structure manipulation of layered double hydroxide. The review begins by examining the local environmental changes of LDH resulting from the insertion of single atoms. Subsequently, we explore the charge transfer that occurs at the interface between LDH and other transition metal heterostructures. In addition, we explored the impact on the metal centre near the vacancies on the basal plane of LHD. Finally, we presented a future perspective and guidance for advancing this field in electrocatalysis.

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Recent Advances in Electronic Structure Modifications of Layered Double Hydroxide (LDH) for the Water Splitting Application

Gaur,

Sharma,

Lim

et al. 2024

ChemCatChem

View full text Add to dashboard Cite

show abstract

Structural and Phase Engineering of a Hierarchical 2D–2D Nickel MOF/Hydroxide‐Derived Ni_0.85Se/NiTe₂ Heterointerface for Robust HER, OER, and Overall Water Splitting

Pathak,

Prabhakaran,

Acharya

et al. 2024

Small

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The development of a nonnoble metal‐based cost‐effective, efficient, and durable bifunctional electrocatalyst is crucial to achieving the goal of carbon neutrality. In this study, a structural and interfacial engineering approach is employed to design a 2D–2D hierarchical nickel MOF/nickel hydroxide‐derived nickel selenide/nickel telluride dual‐phase material through a single‐step selenotellurization process. The rational design of highly ordered nanoarchitectures provides well‐defined voids and ample pathways for ion diffusion. Furthermore, hierarchical nickel selenide/nickel telluride works synergistically at heterojunctions, providing a local ion enrichment mechanism for the catalytic process. As a result, Ni0.85Se/NiTe2@Ni‐NH@CC needs an overpotential of 69 and 240 mV to deliver a current density of 10 mA cm−2 for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively, with an outstanding stability observed for over 100 h. Moreover, the Ni0.85Se/NiTe2@Ni‐NH@CC (+, −) device exhibits excellent overall water‐splitting performance with a cell voltage of 1.50 V at 10 mA cm−2 and can be operated steadily for >100 h at 100 mA cm−2. Density functional theory (DFT) calculations indicate favorable kinetics for H‐adsorption at the selenotelluride heterojunction, thereby promoting the HER. This work highlights a new approach for designing a unique nanoarchitecture of MOF/hydroxide‐derived selenotelluride heterojunctions for high‐efficiency energy conversion applications.

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Multiphase lattice engineering of bimetallic phosphide-embedded tungsten-based phosphide/oxide nanorods on carbon cloth: A synergistic and stable electrocatalyst for overall water splitting

Acharya,

Chhetri,

Pathak

et al. 2024

Chemical Engineering Journal

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Electronically modulated bimetallic telluride nanodendrites atop 2D nanosheets using a vanadium dopant enabling a bifunctional electrocatalyst for overall water splitting

Abstract: A bimetallic telluride heterojunction is electronically modulated by vanadium doping, resulting in remarkable catalytic activity for hydrogen evolution, oxygen evolution, and overall water-splitting.

Cited by 9 publications

References 72 publications

Recent Advances in Electronic Structure Modifications of Layered Double Hydroxide (LDH) for the Water Splitting Application

Recent Advances in Electronic Structure Modifications of Layered Double Hydroxide (LDH) for the Water Splitting Application

Structural and Phase Engineering of a Hierarchical 2D–2D Nickel MOF/Hydroxide‐Derived Ni_0.85Se/NiTe₂ Heterointerface for Robust HER, OER, and Overall Water Splitting

Multiphase lattice engineering of bimetallic phosphide-embedded tungsten-based phosphide/oxide nanorods on carbon cloth: A synergistic and stable electrocatalyst for overall water splitting

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Electronically modulated bimetallic telluride nanodendrites atop 2D nanosheets using a vanadium dopant enabling a bifunctional electrocatalyst for overall water splitting

Abstract: A bimetallic telluride heterojunction is electronically modulated by vanadium doping, resulting in remarkable catalytic activity for hydrogen evolution, oxygen evolution, and overall water-splitting.

Cited by 9 publications

References 72 publications

Recent Advances in Electronic Structure Modifications of Layered Double Hydroxide (LDH) for the Water Splitting Application

Recent Advances in Electronic Structure Modifications of Layered Double Hydroxide (LDH) for the Water Splitting Application

Structural and Phase Engineering of a Hierarchical 2D–2D Nickel MOF/Hydroxide‐Derived Ni0.85Se/NiTe2 Heterointerface for Robust HER, OER, and Overall Water Splitting

Multiphase lattice engineering of bimetallic phosphide-embedded tungsten-based phosphide/oxide nanorods on carbon cloth: A synergistic and stable electrocatalyst for overall water splitting

Contact Info

Product

Resources

About

Structural and Phase Engineering of a Hierarchical 2D–2D Nickel MOF/Hydroxide‐Derived Ni_0.85Se/NiTe₂ Heterointerface for Robust HER, OER, and Overall Water Splitting