Spray deposition of tin oxide thin films for supercapacitor applications: effect of solution molarity

Yadav, Abhijit A.

doi:10.1007/s10854-016-4654-7

Cited by 17 publications

(5 citation statements)

References 36 publications

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“…As a contrast, the electrode SnO 2 only has 184.7 F g −1 at the low current density of 2 mA cm −2 . As far as we know, the observed electrochemical performances are better than other SnO 2 -based materials, which have been reported before, such as the pure SnO 2 (138 F g −1 ) [ 34 ], SnO 2 -NGO (378 F g −1 ) [ 35 ], SnO 2 /g-C 3 N 4 (488 F g −1 ) [ 47 ], and the hollow SnO 2 (332.7 F g −1 ) [ 30 ] (See Table 1 ). The cycling stability of two electrodes is shown in Figure 7 b.…”

Section: Resultsmentioning

confidence: 71%

“…In this work, graphene modified oxygen-deficient SnO 2 nanocomposite (r-SnO 2 /GN) was successfully synthesized via the solvothermal method and annealing treatment. Different from the reported SnO 2 nanostructures [ 34 , 35 , 36 , 37 ], this paper synthesized SnO 2 hollow spheres with large specific surface area and stable structure by means of concentrated acid and organic solution at appropriate reaction temperature and reaction time. At the same time, chemical treatment and heat treatment were reasonably combined in the introduction of oxygen vacancies, which not only achieved the deep reduction of GO but also introduced a large number of oxygen vacancies in SnO 2 under the premise of ensuring the phase stability.…”

Section: Introductionmentioning

confidence: 99%

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Oxygen-Deficient Stannic Oxide/Graphene for Ultrahigh-Performance Supercapacitors and Gas Sensors

et al. 2021

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The metal oxides/graphene nanocomposites have great application prospects in the fields of electrochemical energy storage and gas sensing detection. However, rational synthesis of such materials with good conductivity and electrochemical activity is the topical challenge for high-performance devices. Here, SnO2/graphene nanocomposite is taken as a typical example and develops a universal synthesis method that overcome these challenges and prepares the oxygen-deficient SnO2 hollow nanospheres/graphene (r-SnO2/GN) nanocomposite with excellent performance for supercapacitors and gas sensors. The electrode r-SnO2/GN exhibits specific capacitance of 947.4 F g−1 at a current density of 2 mA cm−2 and of 640.0 F g−1 even at 20 mA cm−2, showing remarkable rate capability. For gas-sensing application, the sensor r-SnO2/GN showed good sensitivity (~13.8 under 500 ppm) and short response/recovering time toward methane gas. These performance features make r-SnO2/GN nanocomposite a promising candidate for high-performance energy storage devices and gas sensors.

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Section: Resultsmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Oxygen-Deficient Stannic Oxide/Graphene for Ultrahigh-Performance Supercapacitors and Gas Sensors

et al. 2021

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“…Their chemical state and surface elemental composition were characterized by a Thermo Fisher X-ray photoelectron spectroscope (XPS, Waltham, MA, USA) using nonmonochromated aluminum Kα radiation with a photon energy of 1486.7 eV. And the correction of the energy shift was executed using carbon 1s line with the binding energy of 284.6 eV as reference [23].…”

Section: Samples Characterizationmentioning

confidence: 99%

“…In particular, tin oxide is noted to be a new active electrode material to manufacture high-performance pseudocapacitors because of its low cost, nontoxicity, superior capacitive behavior and high thermal stability [10,21,22]. However, the major disadvantages of tin oxide as an active material for supercapacitors are its poor electrical conductivity, obvious agglomeration of particles and inferior rate capability, which greatly limits its commercial application as an electrode material [23]. Thus, numerous studies in the literature have concentrated on improving the electrochemical performance of tin oxide as a supercapacitor electrode material.…”

Section: Introductionmentioning

confidence: 99%

Ni Foam-Supported Tin Oxide Nanowall Array: An Integrated Supercapacitor Anode

et al. 2021

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A novel product consisting of a homogeneous tin oxide nanowall array with abundant oxygen deficiencies and partial Ni-Sn alloying onto a Ni foam substrate was successfully prepared using a facile solvothermal synthesis process with subsequent thermal treatment in a reductive atmosphere. Such a product could be directly used as integrated anodes for supercapacitors, which showed outstanding electrochemical properties with a maximum specific capacitance of 31.50 mAh·g−1 at 0.1 A·g−1, as well as good cycling performance, with a 1.35-fold increase in capacitance after 10,000 cycles. An asymmetric supercapacitor composed of the obtained product as the anode and activated carbon as the cathode was shown to achieve a high potential window of 1.4 V. The excellent electrochemical performance of the obtained product is mainly ascribed to the hierarchical structure provided by the integrated, vertically grown nanowall array on 3D Ni foam, the existence of oxygen deficiency and the formation of Ni-Sn alloys in the nanostructures. This work provides a general strategy for preparing other high-performance metal oxide electrodes for electrochemical applications.

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“…Among the various metal oxides, tin dioxide (SnO 2 ) as a typical n-type semiconductor has been widely applied in a variety of energy storage devices, such as supercapacitors, − solar cells, − and lithium-ion batteries. − As electrode candidates for pseudocapacitors, SnO 2 nanostructures have been extensively investigated because of their low cost, non-toxicity, high thermal stability in air, and high power delivery capability . For instance, Pusawale et al deposited nanocrystalline SnO 2 films via a chemical route, reporting that the optimal sample would present a specific capacitance of 66 F·g –1 at a scan rate of 10 mV·s –1 .…”

Section: Introductionmentioning

confidence: 99%

Alloying Enhanced Supercapacitor Performance Based on Oxygen-Deficient Tin Oxide Nanorod Array Electrodes

Wang

Tian

Guan

et al. 2020

ACS Appl. Energy Mater.

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Tin dioxide (SnO 2 ) nanostructures are potential, excellent candidates for pseudocapacitive electrodes. However, the performances are seriously limited by their low electrical conductivities. Here, we report a product of homogeneous, ordered, partially Ni−Sn alloyed, and oxygendeficient tin oxide nanorod array on Ni foam, which was fabricated by an easy solvothermal synthesis method followed by facile thermal treatment in a safe reductive atmosphere. Such a product can directly be applied as the electrode of supercapacitors. With an increasing degree of alloying, the electrochemical behavior of the electrodes is controlled from pseudocapacitive to battery-type energy storage mechanism. The recorded maximum specific capacitance at a significantly large current density of 5 A•g −1 could reach 101.1 mAh•g −1 (or 652 F•g −1 ), a quite high value in battery-type supercapacitors and also very large one in tin oxide-based pseudocapacitors. More astonishingly, the optimal electrode will possess a dramatically enhanced specific capacitance after long-time charge−discharge cycling, attaining 11.4 times higher than its original value after cycling for 4000 times at 25 A•g −1 , showing very excellent durability. Therefore, the present methodology would provide a simple, feasible, and safe strategy of fabricating various metal oxide-based electrodes for high-performance supercapacitors.

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Spray deposition of tin oxide thin films for supercapacitor applications: effect of solution molarity

Cited by 17 publications

References 36 publications

Oxygen-Deficient Stannic Oxide/Graphene for Ultrahigh-Performance Supercapacitors and Gas Sensors

Oxygen-Deficient Stannic Oxide/Graphene for Ultrahigh-Performance Supercapacitors and Gas Sensors

Ni Foam-Supported Tin Oxide Nanowall Array: An Integrated Supercapacitor Anode

Alloying Enhanced Supercapacitor Performance Based on Oxygen-Deficient Tin Oxide Nanorod Array Electrodes

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