Ternary composite Si/TiN/MnO2 taper nanorod array for on-chip supercapacitor

Lu, Pai; Halvorsen, Einar; Øhlckers, Per; Müller, Lucas O.; Leopold, Steffen; Hoffmann, Martin; Grigoras, Kestutis; Ahopelto, Jouni; Prunnila, Mika; Chen, Xuyuan

doi:10.1016/j.electacta.2017.07.162

Cited by 32 publications

(27 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected, all samples deliver a distinct pair of peaks induced by a faradaic redox reaction, which clearly reveals the typical pseudocapacitive characteristics [23,24]. In particular, the integrated area under CV curve of Co 3 O 4 -2 electrode is the largest among three Co 3 O 4 electrodes, demonstrating that the Co 3 O 4 -2 possesses the largest specific capacitance [34]. The CV curves of the Co 3 O 4 -2 electrode measured at typical scan rates from 5 to 100 mV/s are displayed in Figure 3b.…”

Section: Electrochemical Measurementssupporting

confidence: 72%

Tunable Synthesis of Hollow Co3O4 Nanoboxes and Their Application in Supercapacitors

2020

Self Cite

View full text Add to dashboard Cite

Hollow Co3O4 nanoboxes constructed by numerous nanoparticles were prepared by using a facile method consisting of precipitation, solvothermal and annealing reactions. The desirable hollow structure as well as a highly porous morphology led to synergistically determined and enhanced supercapacitor performances. In particular, the hollow Co3O4 nanoboxes were comprehensively investigated to achieve further optimization by tuning the sizes of the nanoboxes, which were well controlled by initial precipitation reaction. The systematical electrochemical measurements show that the optimized Co3O4 electrode delivers large specific capacitances of 1832.7 and 1324.5 F/g at current densities of 1 and 20 A/g, and only 14.1% capacitance decay after 5000 cycles. The tunable synthesis paves a new pathway to get the utmost out of Co3O4 with a hollow architecture for supercapacitors application.

show abstract

Section: Electrochemical Measurementssupporting

confidence: 72%

Tunable Synthesis of Hollow Co3O4 Nanoboxes and Their Application in Supercapacitors

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The optimized composition of the ternary nanocomposite electrode obtained for chemical deposition for 8 h duration (8‐h‐CD) yielded appreciable volumetric capacitance of 169 Fcm −3 @ 5 mVs −1 voltage scan rate, good rate capacity as well as recording about ∼70 times improved capacitance than that of the ‘without MnO 2 ‐deposited’ electrode. In addition, cyclic stability studies in Figure 13(f), indicated that the capacitance of (8‐h‐CD) sample got steady behavior from very early cycles compared to others with retaining capacity of 95.7 % even after completing continuous 5000 GCD cycles [281] …”

Section: Electrochemical Performances Of Various Mno2‐based Ternary Nmentioning

confidence: 96%

“…In addition, cyclic stability studies in Figure 13(f), indicated that the capacitance of (8-h-CD) sample got steady behavior from very early cycles compared to others with retaining capacity of 95.7 % even after completing continuous 5000 GCD cycles. [281] Again, layered double hydroxides (LDHs), as mentioned in the previous section, are basically inorganic sheets-structured clay materials that are rapidly achieving popularity as promising electrode materials for energy storage applications. [282] LDHs entertain easy modifications of cations within the host layers as well as substitutions of anions in the interlayer corridors besides providing exceptionally large specific surface area with adjustable architectures.…”

Section: Ternary Nanocomposites Of Mno 2 and Inorganic Materialsmentioning

confidence: 99%

Review on Current Progress of MnO₂‐Based Ternary Nanocomposites for Supercapacitor Applications

Majumdar¹

2020

ChemElectroChem

View full text Add to dashboard Cite

Manganese dioxide (MnO2) has proved itself as a popular pseudocapacitive material with low fabrication cost, high availability, low toxicity, and improved handling safety compared to many other inorganics or carbon‐based systems existing in the market. However, the specific capacitance reported to date has been far inferior to that of the theoretically predicted value (ca. 1370 Fg−1), which is mainly attributed to the issues associated with poor conductivity, nanostructure agglomeration, low porosity, rapid electrolyte‐mediated dissolution, and so forth, which have considerably limited its commercial effectiveness. Thus, to bring about improvement in the electrochemical performance of MnO2‐based supercapacitors, novel designs of MnO2 nanomaterials through composite formations with other substances, such as nanocarbons, conducting polymers or inorganic materials, namely metal oxides and sulfides, have been comprehensively explored. Extensive studies on these MnO2 binary nanocomposites revealed significant improvement in the electrochemical features compared to pristine phases; nevertheless, the achieved state is still far below practicability. Hence, scientists have opted for MnO2‐based ternary nanocomposites achieved by blending appropriate proportions the three components (MnO2 nanostructures being one of the constant components) that would promote synergism to attain suitable dimensions, crystallinity, crystal structure, conductivity, mass loading, and electrolyte selectivity so as to confer superior capacitance, charge transfer kinetics, better utilization of electroactive materials, energy and power densities, as well as improved mechanical stability and environmental adaptability. Herein, recent developments and advancements in the research of various MnO2‐based ternary nanocomposites employed for supercapacitor applications have been discussed and are compared with binary analogs with special emphasis on correlating their composition, morphology, and the electrochemical properties that are noticeably modified upon introduction of the third component. The associated challenges encountered in their progress toward commercialization and the probable ideas of persuading better strategic designs of these ternary systems for high‐performance supercapacitor applications have also been delineated.

show abstract

“…), and t (s) are the mass of active material, scan rate, potential window, discharge current, and discharge time [31,32]. The electrochemical impedance spectrum (EIS) was determined over a frequency range from 100 mHz to 100 kHz with an AC perturbation of 5 mV at open circuit potential.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Porous Thin-Wall Hollow Co3O4 Spheres for Supercapacitors with High Rate Capability

et al. 2019

Self Cite

View full text Add to dashboard Cite

In this study, a zeolitic imidazolate framework-67 (ZIF-67) was prepared as a precursor using a facile hydrothermal method. After a calcination reaction in the air, the as-prepared precursor was converted to porous thin-wall hollow Co3O4 with its original frame structure almost preserved. The physical and chemical characterizations of the nanomaterial were analyzed systemically. The electrochemical tests indicate that the obtained Co3O4 possesses large specific capacitances of 988 and 925 F/g at 1 and 20 A/g accompanying an outstanding rate capability (a 93.6% capacitance retention) and retains 96.6% of the specific capacitance, even after 6000 continuous charge/discharge cycles. These excellent properties mark the Co3O4 a promising electrode material for high performance supercapacitors.

show abstract

Ternary composite Si/TiN/MnO2 taper nanorod array for on-chip supercapacitor

Cited by 32 publications

References 57 publications

Tunable Synthesis of Hollow Co3O4 Nanoboxes and Their Application in Supercapacitors

Tunable Synthesis of Hollow Co3O4 Nanoboxes and Their Application in Supercapacitors

Review on Current Progress of MnO₂‐Based Ternary Nanocomposites for Supercapacitor Applications

Porous Thin-Wall Hollow Co3O4 Spheres for Supercapacitors with High Rate Capability

Contact Info

Product

Resources

About

Ternary composite Si/TiN/MnO2 taper nanorod array for on-chip supercapacitor

Cited by 32 publications

References 57 publications

Tunable Synthesis of Hollow Co3O4 Nanoboxes and Their Application in Supercapacitors

Tunable Synthesis of Hollow Co3O4 Nanoboxes and Their Application in Supercapacitors

Review on Current Progress of MnO2‐Based Ternary Nanocomposites for Supercapacitor Applications

Porous Thin-Wall Hollow Co3O4 Spheres for Supercapacitors with High Rate Capability

Contact Info

Product

Resources

About

Review on Current Progress of MnO₂‐Based Ternary Nanocomposites for Supercapacitor Applications