Co-metal–organic framework derived CoSe2@MoSe2 core–shell structure on carbon cloth as an efficient bifunctional catalyst for overall water splitting

Patil, Swati J.; Chodankar, Nilesh R.; Hwang, Seung‐Kyu; Shinde, Pragati A.; Raju, Ganji Seeta Rama; Ranjith, Kugalur Shanmugam; Huh, Yun Suk; Han, Yugui

doi:10.1016/j.cej.2021.132379

Cited by 154 publications

(48 citation statements)

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“…With the depletion of fossil fuels and serious environmental concerns arising, enormous endeavors have been devoted to exploring sustainable and carbon-free emission energies. , Hydrogen energy, possessing the virtues of high energy density and pollution-free property, has been regarded as an alternative to traditional fossil fuels for energy conversion, storage, and utilization. , In contrast to major industrial technologies for hydrogen production, such as coal gasification and steam reforming, electrocatalytic water splitting driven by sustainable energy sources (e.g., wind power, solar power, tidal power, etc.) has been recognized as an eco-friendly sustainable approach .…”

Section: Introductionmentioning

confidence: 99%

Vanadium-Doping and Interface Engineering for Synergistically Enhanced Electrochemical Overall Water Splitting and Urea Electrolysis

Wang

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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Fabricating effective non-precious metal-based catalysts for hydrogen production via electrochemical water splitting is of considerable importance but remains challenging. Transition metal nitrides possessing metallic character and corrosion resistance have been considered as potential replacements for precious metals. However, their activities for water electrolysis are impeded by the strong hydrogen adsorption and low water adsorption energies. Herein, V-doped bimetallic nitrides, V-FeNi3N/Ni3N heterostructure, are synthesized via a hydrothermal–nitridation protocol and used as electrocatalysts for water splitting and urea electrolysis. The V-FeNi3N/Ni3N electrode exhibits superior HER and OER activities, and the overpotentials are 62 and 230 mV to acquire a current density of 10 mA cm–2, respectively. Moreover, as a bifunctional electrocatalyst for overall water splitting, a two-electrode device needs a voltage of 1.54 V to reach a current density of 10 mA cm–2. The continuous electrolysis can be run for more than 120 h, surpassing most previously reported electrocatalysts. The excellent performance for water electrolysis is dominantly due to V-doping and interface engineering, which could enhance water adsorption and regulate the adsorption/desorption of intermediates species, thereby accelerating HER and OER kinetic processes. Besides, a urea-assisted two-electrode electrolyzer for electrolytic hydrogen production requires a cell voltage of 1.46 V at 10 mA cm–2, which is 80 mV lower than that of traditional water electrolysis.

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Section: Introductionmentioning

confidence: 99%

Vanadium-Doping and Interface Engineering for Synergistically Enhanced Electrochemical Overall Water Splitting and Urea Electrolysis

Wang

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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“…Though ZIF‐67 lacks the thermal and chemical stability of conventional inorganic support like mesoporous silica or zeolites, its exceptionally high surface area, [ 28 ] tunable pore structure, and well‐defined chemical functionalities make it an attractive carrier for active metals (AMs). [ 324 ][ 442 ][ 443 ] Furthermore, simple pyrolysis ZIF‐67 supported AMs (AMs/ZIF‐67) can transform them into carbon‐supported AMs, elevating their catalytic activity by augmenting their electrical conductivity. [ 444 ] Surface functionalization of MOF with AMs can be achieved either by using a premetallized organic linker or post‐synthesis metallization via solvothermal treatment or atomic layer deposition.…”

Section: Zif‐67 and Its Derivatives As An Electrocatalysts For Water ...mentioning

confidence: 99%

“…The post analysis after stability test proves the formation of NiOOH layer on the top of Se-based catalyst during OER. Also, Patil et al [324] shows the lamination of ZIF-67 with transition metal dichalcogenide, that is, MoSe 2 is an effective strategy to develop high efficient and sustainable bi-functional electrocatalysts for overall water splitting. The strategy used for the CC/MOF-CoSe 2 @MoSe 2 core-shell structure synthesis is schematically shown in Figure 18d.…”

Section: Overall Water Splittingmentioning

confidence: 99%

Critical Review, Recent Updates on Zeolitic Imidazolate Framework‐67 (ZIF‐67) and Its Derivatives for Electrochemical Water Splitting

et al. 2022

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High surface area provides abundant active sites for catalytic reaction High Surface area Open crystal structure can exposes more interior atoms to provide more active sites Open crystal structure Organic linker acts as source of nitrogen source to improve the conductivity of overall matrix Organic linker Metal nanoparticles and metal complexes can be encapsulated inside MOFs to form guest@MOFs Tunable pore structure Figure 2.Advantages of the ZIF-67 for electrocatalytic application. The schematics of ZIF-67 was reproduced under the terms of the CC BY license. [468]

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“…As a two‐electrode electrolyzer, the NiS/CoS/CC‐3 reached a current density of 10 mA cm −2 at a potential of 1.57 V, with outstanding durability over 72 h. Likewise, the MOF‐CoSe 2 @MoSe 2 core–shell requires a low cell voltage of 1.53 V for overall water splitting. [ 416 ] Due to the interface rich 3D hierarchical architecture, the Cu 3 N@CoNiCHs@CF reached HER and OER current density of 10 mA cm −2 at 182 and 155 mV, respectively. [ 417 ] While the Cu 3 N@CoNiCHs@CF requires a low cell voltage of 1.58 V for overall water splitting.…”

Section: Hydrogen Evolution (Her) and Oxygen Evolution Reactions (Oer...mentioning

confidence: 99%

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

Chandrasekaran

Khandelwal

Fan

et al. 2022

Advanced Energy Materials

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Ni, Fe, and Cu foams to form robust binder-free electrodes for high-performance electrocatalytic reactions. [55][56][57][58][59] Interestingly, multidimensional electrocatalysts grown at the nanoscale on a range of current collectors, namely substrates and will benefit from a strong adhesion with the current collector to avoid catalyst delamination, limited active sites, and charge transfer blockage to enhance catalytic reactions (Figure 1b-d). [9,[60][61][62][63][64] Key Prospects, Insights, and the Dynamic Properties of Nano-and Microstructured Binder-Free Electrocatalysts and Their Direct Impact on Electrochemical ReactionsWater splitting has become one of the most important technologies to produce hydrogen (H 2 ) in high purity form. Water splitting includes two half-reactions, namely the cathodic HER and anodic OER. [8,65] Generally, the electrocatalytic performance and activity are highly sensitive to local reaction conditions and is largely valued by the energy required for adsorption/desorption of reaction intermediates and the rupture/creation of chemical bonds. Hence, the conventional powder form of precious metals such as Pt/C for the HER and RuO 2 or IrO 2 for the OER are considered ideal electrocatalysts. [66] In addition, several nonprecious 1D, 2D, and 3D nano-and microstructured powder catalysts such as MoS 2 , WS 2 , Ni 3 S 2 , NiCo 2 S 4 are also of interest for the HER and OER reactions. [54,[67][68][69][70][71][72][73][74] However, for commercial purposes and practical applica-

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Co-metal–organic framework derived CoSe2@MoSe2 core–shell structure on carbon cloth as an efficient bifunctional catalyst for overall water splitting

Cited by 154 publications

References 50 publications

Vanadium-Doping and Interface Engineering for Synergistically Enhanced Electrochemical Overall Water Splitting and Urea Electrolysis

Vanadium-Doping and Interface Engineering for Synergistically Enhanced Electrochemical Overall Water Splitting and Urea Electrolysis

Critical Review, Recent Updates on Zeolitic Imidazolate Framework‐67 (ZIF‐67) and Its Derivatives for Electrochemical Water Splitting

Developments and Perspectives on Robust Nano‐ and Microstructured Binder‐Free Electrodes for Bifunctional Water Electrolysis and Beyond

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