In-situ fabrication of NixSey/MoSe2 hollow rod array for enhanced catalysts for efficient hydrogen evolution reaction

Liu, Song; Lv, Xuefeng; Liu, Guangsheng; Li, Chen; Thummavichai, Kunyapat; Li, Zhen; Zhang, Linyi; Bin, Zhini; Wang, Nannan; Zhu, Yanqiu

doi:10.1016/j.jcis.2022.03.012

Cited by 17 publications

(11 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Transition-metal selenides, such as MoSe 2 , WSe 2 , CoSe 2 , and NiSe 2 [18][19][20][21][22], are Pt-free electrocatalysts with high performance for water dissociation, as proved in theoretical and experimental studies. Among these materials, CoSe 2 exhibits a remarkable performance and high stability in various solutions.…”

Section: Introductionmentioning

confidence: 92%

Comparative Study on Hydrogen Evolution Reaction of Various Cobalt-Selenide-Based Electrocatalysts

Huu

Cho

et al. 2023

International Journal of Energy Research

View full text Add to dashboard Cite

The growth of stable and efficient catalysts is vital for the electrochemical hydrogen evolution reaction (HER). Metal–organic frameworks (MOFs) have been recognized as ideal templates for fabricating efficient nanomaterial-based electrocatalysts for the HER. In this study, nitrogen-containing Co-MOF (ZIF-67), Co-MOF-74, and cobalt chloride salt were selenized to create various cobalt-selenide-based materials, i.e., cobalt selenide@nitrogen-doped carbon (CoSe2@NC), CoSe2@C, and CoSe2, respectively. The core–shell structure of CoSe2@NC originated from ZIF-67 exhibited better HER catalytic activity than those of CoSe2@C and CoSe2. CoSe2@NC exhibited a low overvoltage of 184 mV at 10 mA cm−2 and a small Tafel slope of 58.4 mV dec−1. In addition, this catalyst exhibited excellent durability while maintaining its performance after 12 h of testing. The high catalytic activity is ascribed to the integrated effect of the core–shell architecture, N-doped carbon, and large surface area, making protected active sites, high conductivity, and exposed active sites possible. The results demonstrate the efficiency of using MOFs as precursors for cobalt selenide fabrication and provide a potential synthetic strategy for noble-metal-free electrocatalysts for hydrogen production.

show abstract

Section: Introductionmentioning

confidence: 92%

Comparative Study on Hydrogen Evolution Reaction of Various Cobalt-Selenide-Based Electrocatalysts

Huu

Cho

et al. 2023

International Journal of Energy Research

View full text Add to dashboard Cite

show abstract

“…designed a novel coralline‐like Ni x Se y /MoSe 2 heterostructure on 3D nickel foam (Figure 21b). [ 252 ] The in situ selenization on nickel foam led to the formation of tightly contacted interfaces between MoSe 2 and Ni x Se y , thus promoting electron transfer from Ni x Se y to MoSe 2 and triggering the phase transition from 2H to 1T phase. In addition, this 3D conductive open structure presented abundant exposed catalytic sites and numerous electron transfer channels, thereby presenting efficient catalytic performances and only a low overpotential of 77 mV was required at 10 mA cm −2 .…”

Section: Energy Applications Of Mose2mentioning

confidence: 99%

“…Reproduced with permission. [ 252 ] Copyright 2022, Elsevier. c) The preparation of MoSe 2 /CoSe hollow spheres, its high‐resolution transmission electron microscope (HRTEM) image, the calculated free energy of water dissociation, and the corresponding catalytic performances.…”

Section: Energy Applications Of Mose2mentioning

confidence: 99%

“…[250,251] 21b). [252] The in situ selenization on nickel foam led to the formation of tightly contacted interfaces between MoSe 2 and Ni 21c). [253] The introduction of CoSe simultaneously lowered the adsorption energy and dissociation energy of H 2 O, effectively accelerating the kinetics of MoSe 2 in alkaline media.…”

Section: Electrocatalytic Hydrogen Evolution Reactionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Molecular Engineering Strategies toward Molybdenum Diselenide Design for Energy Storage and Conversion

Wang

Sun

2022

Advanced Energy Materials

View full text Add to dashboard Cite

The development of graphene has readily accelerated the research progress on 2D materials. As a representative 2D family, transition metal dichalcogenides are widely used in the realms of energy storage and conversion. In particular, molybdenum diselenide (MoSe2) has captured widespread interests owing to its unique physical and chemical properties and remarkable potential in energy applications. Nevertheless, typically, the electrochemical property of pristine MoSe2 does not meet the expectations, which necessitates the exploration and applications of proper modification strategies to achieve its full potential. Herein, several state‐of‐the‐art molecular engineering strategies are summarized, and their energy‐oriented applications are described. Furthermore, insightful information on the significance of molecular engineering methods in improving the electrochemical properties of MoSe2 and perspectives on the future developments of MoSe2 are presented. It is anticipated that the research community can use the information in this review to improve the electrochemical properties of MoSe2 targeting practical application scenarios.

show abstract

Aggregation induced edge sites actuation of 3D MoSe₂/rGO electrocatalyst for high‐performing water splitting system

Janani,

Surendran,

Lee

et al. 2023

Aggregate

View full text Add to dashboard Cite

Abstract2D materials are regarded as promising electrocatalysts for water splitting because of their advances in providing ample active sites and improving electrochemical reaction kinetics. 2D MoSe2 has a greater intrinsic electrical conductivity and lower Gibbs free energy for reactant adsorption. However, there is still room for improvement in the electrocatalytic performance of MoSe2 for high‐performance electrochemical water splitting devices. Herein, the in situ preparation of heterostructure made of covalently bonded MoSe2 and rGO is reported. The obtained electrocatalyst contains the aggregated 3D structured MoSe2 over rGO, which is covalently bonded together with more edge sites. The active edge sites of MoSe2/rGO are dynamically involved in the electrocatalytic activity while facilitating electron transfer. Hence, the MoSe2/rGO heterostructure requires a low cell voltage of 1.64 V to reach 100 mA cm−2 in water splitting with high reaction kinetics. The aggregated MoSe2 over rGO with more edge sites exposed by the 3D structure of MoSe2 and the interfacial covalent bond in between them provides a favorable electronic structure for the HER and OER with low overpotentials and high current densities and enhances the stability of the electrocatalyst. This work presents an attractive and cost‐effective electrocatalyst suitable for industrial‐scale hydrogen fuel production.

show abstract

In-situ fabrication of NixSey/MoSe2 hollow rod array for enhanced catalysts for efficient hydrogen evolution reaction

Cited by 17 publications

References 60 publications

Comparative Study on Hydrogen Evolution Reaction of Various Cobalt-Selenide-Based Electrocatalysts

Comparative Study on Hydrogen Evolution Reaction of Various Cobalt-Selenide-Based Electrocatalysts

Molecular Engineering Strategies toward Molybdenum Diselenide Design for Energy Storage and Conversion

Aggregation induced edge sites actuation of 3D MoSe₂/rGO electrocatalyst for high‐performing water splitting system

Contact Info

Product

Resources

About

In-situ fabrication of NixSey/MoSe2 hollow rod array for enhanced catalysts for efficient hydrogen evolution reaction

Cited by 17 publications

References 60 publications

Comparative Study on Hydrogen Evolution Reaction of Various Cobalt-Selenide-Based Electrocatalysts

Comparative Study on Hydrogen Evolution Reaction of Various Cobalt-Selenide-Based Electrocatalysts

Molecular Engineering Strategies toward Molybdenum Diselenide Design for Energy Storage and Conversion

Aggregation induced edge sites actuation of 3D MoSe2/rGO electrocatalyst for high‐performing water splitting system

Contact Info

Product

Resources

About

Aggregation induced edge sites actuation of 3D MoSe₂/rGO electrocatalyst for high‐performing water splitting system