Modified transition metal chalcogenides for high performance supercapacitors: Current trends and emerging opportunities

Dahiya, Yogita; Hariram, Muruganandham; Kumar, Manoj; Jain, Ankur; Sarkar, Debasish

doi:10.1016/j.ccr.2021.214265

Cited by 133 publications

(72 citation statements)

References 330 publications

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“…A few studies on metal telluride-based supercapacitors have been published. Therefore, more prominent and comprehensive research work on the modified 2D material-based electrodes is ongoing [ 13 ].…”

Section: Supercapacitors; Emerging Field Of Electro Chemical Energy S...mentioning

confidence: 99%

The role of 2D material families in energy harvesting: An editorial overview

Raghavan

Ahn

Shelke

2022

Journal of Materials Research

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The ever increasing proportion of an energy consuming society and the boost in industrialization accelerated the depletion of fossil fuel based energy sources at an alarming rate. This emphasizes the necessity of sustainable energy generation and storage to meet the daily energy demands. But, these alternative renewable energy sources like solar and wind power are intermittent and highly depend on weather, place and individuals. This creates the inevitability of suitable energy storage devices like batteries and supercapacitors. The interfacing of energy storing devices is required to maintain the supply chain equilibrium, power efficiency, regulate power fluctuations and reduce pollution. Besides, the boom in electric mobility and consumer electronics also require uninterrupted power supply. Hence, in the upcoming years the energy storing devices play a vital role in addressing the energy crisis. Innovations in new materials and technologies will be the core area of research and development in the coming future. 2D materials like graphene,transition metal carbides and nitrides (MXenes), transition metal borides (MBenes) and so on are the new class of materials among them MXenes are getting more attention in energy storage owing to its exceptional properties. Graphical abstract

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Section: Supercapacitors; Emerging Field Of Electro Chemical Energy S...mentioning

confidence: 99%

The role of 2D material families in energy harvesting: An editorial overview

Raghavan

Ahn

Shelke

2022

Journal of Materials Research

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“…Transition-metal chalcogenides (most often, metal sulfides/selenides/tellurides), notably in the form of nanostructures, have been a hot topic of study in recent years due to their unique multiple oxidation states, reversible Faradaic reactions, and high theoretical specific capacities. − For the elements of the oxygen family, the metallic characteristic increases whereas electronegativity and ionization energy decrease while progressing down the group. , Thus, although transition-metal selenides (TMSe) have physicochemical properties similar to those of metal oxides and sulfides, they exhibit better metallic properties (e.g., a higher electrical conductivity) and so can be used in advanced energy storage devices. The high electrical conductivity of TMSe results from the covalent character of the metal–selenium connections, which is substantially different from the ionic nature of the metal–oxygen bonds in metal oxides. , This property stems from the selenium ions that have d-orbitals of accessible energy, whereas oxygen and sulfur anions do not, and this leads to wide valence bands and, hence, narrower band gaps compared to those of the corresponding oxides/sulfides .…”

Section: Introductionmentioning

confidence: 99%

Phase-Dependent Energy Storage Performance of the Ni_xSe_y Polymorphs for Supercapacitor-Battery Hybrid Devices

Nazari

Noori

Rahmanifar

et al. 2022

ACS Appl. Mater. Interfaces

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Transition-metal chalcogenides have emerged as a promising class of materials for energy storage applications due to their earth abundance, high theoretical capacity, and high electrical conductivity. Herein, we introduce a facile and one-pot electrodeposition method to prepare high-performance nickel selenide Ni x Se y (0.5 ≤ x/y ≤ 1.5) nanostructures (specific capacity = 180.3 mA h g–1 at 1 A g–1). The as-synthesized nickel selenide (NS) nanostructure is however converted to other polymorphs of nickel selenide including orthorhombic NiSe2, trigonal Ni3Se2, hexagonal NiSe, and orthorhombic Ni6Se5 over cycling. Interestingly, NiSe2 and Ni3Se2 polymorphs that display a more metallic character and superior energy storage performance are the predominant phases after a few hundred cycles. We fabricated a hybrid device using activated carbon (AC) as a supercapacitor-type negative electrode and NS as a high-rate battery-type positive electrode (AC||NS). This hybrid device provides a high specific energy of 71 W h kg–1, an excellent specific power of up to 31 400 W kg–1, and exceptional cycling stability (80% retention of the initial capacity after 20 000 cycles). The higher energy storage performance of the device is a result of the development of high-performance NiSe2 and Ni3Se2 polymorphs. Moreover, the reduction of the critical dimension of the NS particles to the nanoscale partially induces an extrinsic pseudocapacitive behavior that improves the rate capability and durability of the device. We also explored the origin of the superior energy storage performance of the NS polymorphs using density functional theory calculations in terms of the computed density of states around the Fermi level, electrical conductivity, and quantum capacitance that follows the trend NiSe2 > Ni3Se2 > NiSe > Ni6Se5. The present study thus provides an appealing approach for tailoring the phase composition of NS as an alternative to the commonly used templated synthesis methods.

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“…Metal chalcogenides are also important for energy storage devices such as battery applications 13 and high-performance supercapacitor applications. 14…”

Section: Introductionmentioning

confidence: 99%

Syntheses and characterization of two new layered ternary chalcogenides NaScQ₂ (Q = Se and Te)

et al. 2022

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Modified transition metal chalcogenides for high performance supercapacitors: Current trends and emerging opportunities

Cited by 133 publications

References 330 publications

The role of 2D material families in energy harvesting: An editorial overview

The role of 2D material families in energy harvesting: An editorial overview

Phase-Dependent Energy Storage Performance of the Ni_xSe_y Polymorphs for Supercapacitor-Battery Hybrid Devices

Syntheses and characterization of two new layered ternary chalcogenides NaScQ₂ (Q = Se and Te)

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Modified transition metal chalcogenides for high performance supercapacitors: Current trends and emerging opportunities

Cited by 133 publications

References 330 publications

The role of 2D material families in energy harvesting: An editorial overview

The role of 2D material families in energy harvesting: An editorial overview

Phase-Dependent Energy Storage Performance of the NixSey Polymorphs for Supercapacitor-Battery Hybrid Devices

Syntheses and characterization of two new layered ternary chalcogenides NaScQ2 (Q = Se and Te)

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Phase-Dependent Energy Storage Performance of the Ni_xSe_y Polymorphs for Supercapacitor-Battery Hybrid Devices

Syntheses and characterization of two new layered ternary chalcogenides NaScQ₂ (Q = Se and Te)