Charge accumulation and polarization in titanium dioxide electrodes

Article Abstract:

A study examines nanocrystalline titanium dioxide Ti[O.sub.2] electrodes spectroelectrochemically by observing the simultaneous relaxation of the current and absorbance after applying a voltage step. A description of the potential distribution in the nanoparticles by using a dielectric model in which roughly half the applied potential is dropped across the interface with a [Li.sup.+]-ion-containing electrolyte is presented.

Spectra, Titanium dioxide, Electrochemistry, Polarization (Electricity)

---

Defect chemistry, surface structures, and lithium insertion in anatase Ti[O.sub.2]

Article Abstract:

Atomistic simulation methods are used to detect the defect properties of anatase Ti[O.sub.2] and [Li.sub.x]Ti[O.sub.2] both in the bulk and at the surfaces. The calculated surface energies are used to predict the crystal morphology and calculations of defect energies at the (101) surface, suggesting that single [Ti.sup.3+] defects and neutral [Ti.sup.3+]-[Li.sup.3+] pairs tend to segregate to the surface.

Ions, Properties, Structure, Surface energy, Ion migration

---

Influence of cation on charge recombination in dye-sensitized Ti[O.sub.2] electrodes

Article Abstract:

A study was conducted on the reaction of a dye cation recombining with an electron in Ti[O.sub.2] in the presence of L[i.sup.+], C[a.sup.2.sup.+], and TB[A.sup.+] cations by using laser-induced transient absorption measurements. The results suggested that the rate of charge recombinations is proportional to the concentration of initially deposited active cations.

Chemical reactions, Dyes and dyeing, Dye chemistry

Similar abstracts:

• Abstracts: Dimerization and polymerization of isoprene at high pressures. Mechanistic studies of plasma polymerization of allylamine
• Abstracts: Orientational control of the physiological reaction of cytochrome c oxidase tethered to a gold electrode. Redox-dependent pK(sub a) of Cu(sub B) histidine ligand in cytochrome c oxidase
• Abstracts: Raman and in situ FTIR-ATR characterization of polyazulene films and its derivate. Stability of an ultrathin plasma polymerized film in aqueous solution: In situ detection by surface plasmon resonance
• Abstracts: Study of molecular behavior in a water nanocluster: Size and temperature effect. part 2 Multiple time-scale behavior of the hydrogen-bond network in water
• Abstracts: Structure and growth of thin films of aniline on silver: Nucleation and premelting of nanocrystallites, porosity, and crystallization

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.