Nanostructured transition metal oxides and their applications in composites

Gao, Wei; Li, Z.

doi:10.1533/9780857090249.4.723

Cited by 7 publications

(7 citation statements)

References 38 publications

(32 reference statements)

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“…[6] Examples of this has been observed in composite materials based on MnO 2 , SnO 2 , and IrO 2 with polymers, demonstrating remarkable performance in supercapacitor applications, high sensitivity as gas-sensor, bioactive phases, and catalysis. [7][8][9] Transition metal oxides (TMO) are definitively interesting precursor materials for the synthesis of nanocomposites, taking into account their relative low cost, different oxidation states, high stability, natural abundance, and environmental friendship; including TiO 2 , ZnO, and V 2 O 5 , being this last one which has emerged as a promising material for several applications. [10][11][12][13] Unfortunately, poor electrical conductivity limits the applicability of TMO, specifically, for electrochemical applications.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polymer/V₂O₅ composites based on poly(2‐aminodiphenylamine)

et al. 2020

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Hybrid materials consisting of aniline (ANI) and/or 2-aminodiphenylamine (PD) in the presence of V 2 O 5 nanoparticles were synthesized by in-situ chemical oxidative polymerization in one-step. Physicochemical and electrochemical characterization confirmed that in the structure of the composites, intercalation between the polymer chains and the V 2 O 5 slabs occurs. Optical properties study shows that the optical band gap of poly(ANI-co-PD)/V 2 O 5 is lower than poly-PD/ V 2 O 5. Thermal stability of the composites by thermogravimetric analysis was evaluated. Composites showed electrochemical activity with improved electrontransfer of the redox species in the polymer observed by cyclic voltammetry. These results highlight the great influence of the V 2 O 5 sheets and the polymer composition on the hybrid materials formation and properties.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polymer/V₂O₅ composites based on poly(2‐aminodiphenylamine)

et al. 2020

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“…A contact angle of = 6 • -90 • is considered highly wettable, whereas if θ = 91 • -150 • , wettability is considered to be low. If θ = 151 • or larger is observed, it is considered perfectly non-wettable [29]. The contact angles were established as described in the experimental Section 2.5.6 and the results are listed in Table 3.…”

Section: Contact Anglementioning

confidence: 99%

The Effect of Slurry Wet Mixing Time, Thermal Treatment, and Method of Electrode Preparation on Membrane Capacitive Deionisation Performance

et al. 2020

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Capacitive deionisation (CDI) electrodes with identical composition were prepared using three deposition methods: (1) slurry infiltration by calendering (SIC), (2) ink infiltration dropwise (IID), and (3) ink deposition by spray coating (IDSC). The SIC method clearly showed favourable establishment of an electrode with superior desalination capacity. Desalination results showed that electrodes produced from slurries mixed longer than 30 min displayed a significant reduction in the maximum salt adsorption capacity, due to the agglomeration of carbon black. The electrodes were then thermally treated at 130, 250, and 350 °C. Polyvinylidene difluoride (PVDF) decomposition was observed when the electrodes were treated at temperatures higher than 180 °C. The electrodes treated at 350 °C showed contact angles of θ = 0°. The optimised electrodes showed a salt adsorption capacity value of 24.8 mg/g (130 °C). All CDI electrodes were analysed using specific surface area by N2 adsorption, contact angle measurements, conductivity by the four-point probe method and salt adsorption/desorption experiments. Selected reagents and CDI electrodes were characterised using thermogravimetric analysis coupled with mass spectrometry (TGA-MS) and differential scanning calorimetry (DSC), as well as scanning electron microscopy energy dispersive X-ray spectroscopy (SEM-EDS). Electrode structure and the development of the critical balance between ion- and electron- conductive pathways were found to be a function of the electrode slurry mixing procedure, slurry deposition technique and thermal treatment of the electrodes.

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“…Other than this, TiO 2 can put up roughly 1% of oxygen vacancies as well as titanium interstitials. There are exemptions to precede this generalization, as an example, ZnO which does not correspond to the tree of TMOs can provide a departure from the stoichiometric composition that varies from the range 10 −2 to 10 −1 at the temperature of 1000 °C [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…This involves the zone of defect chemistry that solid-state chemist has focused devotion to the TMOs, in certain with the impartial of classifying the kinds of defect that are existing and their equilibrium concentrations as well. At the low concentrations conditions such as ~10 −4 % and point defects that comprise vacant sites (interstitial ions or atoms) are effectively treated via statistical thermodynamics [8,11]. Furthermore, at the higher concentrations conditions such as ~10 −2 %; where certain association arises, the same method can be allowed to legal.…”

Section: Introductionmentioning

confidence: 99%

Rational Design and Advance Applications of Transition Metal Oxides

Ikram¹,

Raza²,

Hassan³

et al. 2021

Transition Metal Compounds - Synthesis, Properties, and Application

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An attractive class of transition metal oxides (TMOs) have been freshly concerned with increasing research interest worldwide concerning stoichiometric and non-stoichiometric configurations as well, that usually exhibits a spinel structure. These TMOs will contribute substantial roles in the production of eco-friendly and low-cost energy conversion (storage) devices owing to their outstanding electrochemical properties. The current chapter involves the summary of the latest research and fundamental advances in the effectual synthesis and rational design of TMOs nanostructures with meticulous size, composition, shape, and micro as well as nanostructures. Also applications of TMOs such as effective photocatalyst, gas sensing, biomedical, and as an electrode material that can be utilized for lithium-ion batteries, and photovoltaic applications. Additionally, certain future tendencies and visions for the development of next-generation advanced TMOs for electrochemical energy storage methods are also displayed.

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Nanostructured transition metal oxides and their applications in composites

Cited by 7 publications

References 38 publications

Synthesis and characterization of polymer/V₂O₅ composites based on poly(2‐aminodiphenylamine)

Synthesis and characterization of polymer/V₂O₅ composites based on poly(2‐aminodiphenylamine)

The Effect of Slurry Wet Mixing Time, Thermal Treatment, and Method of Electrode Preparation on Membrane Capacitive Deionisation Performance

Rational Design and Advance Applications of Transition Metal Oxides

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Nanostructured transition metal oxides and their applications in composites

Cited by 7 publications

References 38 publications

Synthesis and characterization of polymer/V2O5 composites based on poly(2‐aminodiphenylamine)

Synthesis and characterization of polymer/V2O5 composites based on poly(2‐aminodiphenylamine)

The Effect of Slurry Wet Mixing Time, Thermal Treatment, and Method of Electrode Preparation on Membrane Capacitive Deionisation Performance

Rational Design and Advance Applications of Transition Metal Oxides

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Synthesis and characterization of polymer/V₂O₅ composites based on poly(2‐aminodiphenylamine)

Synthesis and characterization of polymer/V₂O₅ composites based on poly(2‐aminodiphenylamine)