Synthesis and characterization of various transition metals doped SnO2@MoS2 composites for supercapacitor and photocatalytic applications

Asaithambi, S.; Sakthivel, P.; Karuppaiah, M.; Balamurugan, Krishnaswamy; Yuvakkumar, R.; Thambidurai, M.; Ravi, G.

doi:10.1016/j.jallcom.2020.157060

Cited by 95 publications

(28 citation statements)

References 69 publications

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“…Among the synthesized catalyst, the Mn-SnO2@ZnO catalyst almost degrades the entire MB and RhB dyes by 80 min of irradiation and the data are shown in figure 9(A,B). The Photo-degradation efficiency was estimated by using following formula [37].…”

Section: Photocatalytic Performance Analysismentioning

confidence: 99%

Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

Asaithambi

Sakthivel

Karuppaiah

et al. 2021

J Mater Sci: Mater Electron

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In this work, we have synthesized Mn-doped SnO2@ZnO nanocomposite for photo degradation of Methylene blue and Rhodamine B dyes upon visible light irradiation. The crystal structure, functional group, optical absorption, defect related emission, morphology, purity and binding energy state of synthesized samples were identified by using various analytical tools.The optical absorption shift and the reduction of band gap values are confirming the formation of hetero-junction of SnO2@ZnO composites. The Mn-SnO2@ZnO hetero-junction effectively induces the photo-generated charge carrier separation and enriches the charge transfer which helps in enhancing the photo-catalytic activities. The photocatalytic degradation results clearly indicate that the Mn-doped SnO2@ZnO nanocomposite has higher degradation efficiency of 98 % and 92 % for the Methylene blue and Rhodamine B dyes, respectively and is higher than the other synthesized samples. The present study reveals a low cost and highly efficient photocatalyst which works up on visible light irradiation for the purification of waste water from industries.

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Section: Photocatalytic Performance Analysismentioning

confidence: 99%

Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

Asaithambi

Sakthivel

Karuppaiah

et al. 2021

J Mater Sci: Mater Electron

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“… 10 , 15 Generally, NiO, SnO, MnO 2 , RuO 2 , V 2 O 5 , and Co 3 O 4 and their composites are used as electrode materials. 11 , 12 So far, RuO 2 has been reported as the best electrode material that can provide good performances due to its excellent theoretical specific capacity (1400–2000 F/g). Nevertheless, the high cost of production and the effects of agglomeration stand as high barriers for marketable use.…”

Section: Introductionmentioning

confidence: 99%

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

et al. 2021

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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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“…Subsequently, the specific capacitance ( C sc , F g −1 ), specific energy ( E sd , Wh kg −1 ) and power density ( P d , W kg −1 ) of the fabricated pouch‐HSC were calculated by using the following equations. [ 49,50 ]

\begin{matrix} C_{sc} = \frac{I \times Δ t}{m \times Δ V} \end{matrix}

\begin{matrix} {normalE}_{s d} = \frac{C \times Δ V^{2}}{7.2} \end{matrix}

\begin{matrix} P_{normald} = \frac{3600 \times E}{Δ t} \end{matrix}

where C sc is the specific capacitance (F g −1 ), E sd is the specific energy (Wh kg −1 ), P d is specific power (W kg −1 ), I is the discharge current (A), m is the mass (g), Δ t is the discharge time (s) and Δ V is the voltage range (V).…”

Section: Methodsmentioning

confidence: 99%

“…Subsequently, the specific capacitance (C sc , F g −1 ), specific energy (E sd , Wh kg −1 ) and power density (P d , W kg −1 ) of the fabricated pouch-HSC were calculated by using the following equations. [49,50]…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

Heterostructured O_v‐Mn₂O₃@Cu₂SnS₃@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors

Karuppaiah

Sakthivel

Asaithambi

et al. 2022

Adv Materials Inter

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In this work, self‐charging pouch‐type hybrid supercapacitor (HSCs) is fabricated by extrinsic integration of wind and solar energy power systems. Initially, the synthesized mesoporous 3D‐rhombohedral Mn2O3 shows a specific capacity of 37.61 mA h g−1 in KOH plus redox additives electrolyte. Further, the oxygen vacancy of Mn2O3 is tuned by fast‐reduction (FR) and mild‐reduction (MR) techniques. The rich oxygen vacancy of FR‐Mn2O3 (rich Ov‐Mn2O3) exhibits a specific capacity of 66.64 mA h g−1. On the other hand, the different morphologies of Cu2SnS3@SnS are synthesized by time‐dependent solvothermal technique. The 3D‐microsphere Cu2SnS3@SnS shows higher electrochemical performance than the others. In order to further improve the electrochemical performance, the heterostructure of rich Ov‐Mn2O3@Cu2SnS3@SnS composite is prepared that provides a maximum specific capacity of 126.07 mA h g−1 at 8 mA cm−2 and rate capability of 66.09% with retention of 93.89% after 10 000 cycles. This is ascribing to high electrical/ionic conductivity, larger faradaic reactions, lower interfacial resistance, and synergistic effect. Then, the fabricated pouch‐type HSC delivers a maximum specific energy density of 47.97 Wh kg−1 and power density of 5120 W kg−1. Finally, the pouch HSCs are employed for practical self‐charging applications.

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Synthesis and characterization of various transition metals doped SnO2@MoS2 composites for supercapacitor and photocatalytic applications

Cited by 95 publications

References 69 publications

Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

Heterostructured O_v‐Mn₂O₃@Cu₂SnS₃@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors

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Synthesis and characterization of various transition metals doped SnO2@MoS2 composites for supercapacitor and photocatalytic applications

Cited by 95 publications

References 69 publications

Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

Quaternary Cu2FeSnS4/PVP/rGO Composite for Supercapacitor Applications

Heterostructured Ov‐Mn2O3@Cu2SnS3@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors

Contact Info

Product

Resources

About

Quaternary Cu₂FeSnS₄/PVP/rGO Composite for Supercapacitor Applications

Heterostructured O_v‐Mn₂O₃@Cu₂SnS₃@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors