Synthesis of self-assembled micro/nano structured manganese carbonate for high performance, long lifespan asymmetric supercapacitors and investigation of atomic-level intercalation properties of OH− ions via first principle calculation

Electrochemical energy storage is a current research area to address energy challenges of the modern world. The Cu 2 FeSnS 4 /PVP/rGO-decorated nanocomposite using PVP as the surface ligand was explored in a simple one-step solvothermal route, for studying their electrochemical behavior by designing asymmetric hybrid supercapacitor devices. The full cell three-electrode arrangements delivered 748 C/g (62.36 mA h/g) at 5 mV/s employing CV and 328 F/g (45.55 mA h/g) at 0.5 A/g employing GCD for the Cu 2 FeSnS 4 /PVP/rGO electrode. The half-cell two-electrode device can endow with 73 W h/kg and 749 W/kg at 1 A/g energy and power density. Furthermore, two Cu 2 FeSnS 4 /PVP/rGO//AC asymmetric devices connected in series for illuminating a commercial red LED more than 1 min were explored. This work focuses the potential use of transition-metal chalcogenide composite and introduces a new material for designing high-performance supercapacitor applications.

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“…To calculate the specific capacity, energy, and power density, one can employ the following formula. 21 , 22 …”

Section: Methodsmentioning

confidence: 99%

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

et al. 2021

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“…In nature, carbonates are found in many minerals and play a crucial role in the carbon exchange of our planet [ 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Carbonate compounds are widely used in the construction industry, optics, and nanotechnology [ 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Appearance of the carbonate species due to chemical interaction with the atmosphere agents was detected at the surface of many oxide materials widely used in optical and electronic technologies [ 16 , 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Density Functional Theory Studies of Vibrational Spectra of Carbonates

Zhuravlev

Atuchin

2020

Nanomaterials

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Within the framework of the density functional theory (DFT) and the hybrid functional B3LYP by means of the CRYSTAL17 program code, the wavenumbers and intensities of normal oscillations of MgCO3, CaCO3, ZnCO3, CdCO3 in the structure of calcite; CaMg(CO3)2, CdMg(CO3)2, CaMn(CO3)2, CaZn(CO3)2 in the structure of dolomite; BaMg(CO3)2 in the structure of the norsethite type; and CaCO3, SrCO3, BaCO3, and PbCO3 in the structure of aragonite were calculated. Infrared absorption and Raman spectra were compared with the known experimental data of synthetic and natural crystals. For lattice and intramolecular modes, linear dependences on the radius and mass of the metal cation are established. The obtained dependences have predictive power and can be used to study solid carbonate solutions. For trigonal and orthorhombic carbonates, the linear dependence of wavenumbers on the cation radius RM (or M–O distance) is established for the infrared in-plane bending mode: 786.2–65.88·RM and Raman in-plane stretching mode: 768.5–53.24·RM, with a correlation coefficient of 0.87.

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“…Supercapacitors are such energy storage devices that they have high power density than batteries and high energy density than dielectric capacitors. Prominent features of supercapacitors include high durability, fast charging, larger cycling time, low maintenance cost, and long life 6,7 . The performance of a supercapacitor depends on three factors: electrode material, electrolyte, and arrangement of the assembled device.…”

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confidence: 99%

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Isacfranklin

Yuvakkumar

Ravi

et al. 2020

Sci Rep

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The growth in energy devices and the role of supercapacitors are increasingly important in today’s world. Designing an electrode material for supercapacitors using metals that have high performance, superior structure, are eco-friendly, inexpensive and highly abundant is essentially required for commercialization. In this point of view, quaternary chalcogenide Cu2NiSnS4 with fascinating marigold flower like microstructured electrodes are synthesized using different concentrations of citric acid (0, 0.05 M, 0.1 M and 0.2 M) by employing solvothermal method. The electrode materials physicochemical characteristics are deliberated in detail using the basic characterization techniques. The electrochemical studies revealed better electrochemical performances, in particular, Cu2NiSnS4@0.1 M-CA electrode revealed high 1029 F/g specific capacitance at 0.5 A/g current density. Further, it retained 78.65% capacity over 5000 cycles. To prove the practical applicability, a full-cell asymmetric solid-state device is fabricated, and it delivered 41.25 Wh/Kg and 750 Wh/Kg energy and power density at 0.5 A/g. The optimum citric acid added Cu2NiSnS4 electrode is shown to be a promising candidate for supercapacitor applications.

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Synthesis of self-assembled micro/nano structured manganese carbonate for high performance, long lifespan asymmetric supercapacitors and investigation of atomic-level intercalation properties of OH− ions via first principle calculation

Cited by 57 publications

References 64 publications

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

Comprehensive Density Functional Theory Studies of Vibrational Spectra of Carbonates

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

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Synthesis of self-assembled micro/nano structured manganese carbonate for high performance, long lifespan asymmetric supercapacitors and investigation of atomic-level intercalation properties of OH− ions via first principle calculation

Cited by 57 publications

References 64 publications

Quaternary Cu2FeSnS4/PVP/rGO Composite for Supercapacitor Applications

Quaternary Cu2FeSnS4/PVP/rGO Composite for Supercapacitor Applications

Comprehensive Density Functional Theory Studies of Vibrational Spectra of Carbonates

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

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Product

Resources

About

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications