The application of conventional solid polymer electrolyte (SPE) to lithium-oxygen (Li-O2) batteries has suffered from a limited active reaction zone due to thick SPE and subsequent lack of O2 gas diffusion route in the positive electrode. Here we present a new design for a three-dimensional (3-D) SPE structure, incorporating a carbon nanotube (CNT) electrode, adapted for a gas-based energy stor...

Solid oxide cells (SOCs) are attracting much more attention as promising energy conversion and storage devices. One of the challenges optimizing solid-oxide cells’ performance is that there not enough triple-phase boundaries (TPB) in electrode bulk. To enhance reaction area for SOCs, Sr2Fe1.5Mo0.5O6-δ nanofibers synthesized by electrospinning with metal nitrate precursors used SOC electrodes op...

A tetragonal pyramid-shaped porous ZnO (TPSP-ZnO) nanostructure is used for the immobilization, direct electrochemistry and biosensing of proteins. The prepared ZnO has a large surface area and good biocompatibility. Using glucose oxidase (GOD) as a model, this shaped ZnO is tested for immobilization of proteins and the construction of electrochemical biosensors with good electrochemical perfor...

We present a model of thermal reversible breakdown via conductive filaments (CFs) in hafnium dioxide (HfO2). These CFs appear as a result of electrical pretreatment of a metal/HfO2/metal (semiconductor) nanostructure (MIM(S)). The model is based on an assumption that the thermal reversible breakdown of a CF is due to of Joule heating displaying an exponential dependence of conductivity on tempe...

SODIUM CHLORATE IS MAINLY USED for production of chlorine dioxide (a pulp bleaching agent). Sodium chlorate is produced by an electrochemical process where chloride ions (from sodium chloride dissolved in water) are oxidized to chlorine on the anodes and hydrogen is evolved on the cathodes. The anode of this process consists of a metal plate coated with a catalytically active metal oxide film. ...

Interface-type valence change memories (VCMs) are exciting candidates for multilevel storage in resistive random access (RRAM) and as artificial synapses neuromorphic computing. Several materials have been proposed VCM and, depending on the electrodes of choice, different switching mechanisms take place leading to resistance. Here, focus is La0.8Sr0.2MnO3–δ (LSM) perovskite particularly, role i...

In this work, PbSe and PbTe sensitized TiO2 solar cells were fabricated. PbSe and PbTe nanostructure was deposited on the TiO2 surface via a drop cast method. The fabricated surfaces were examined by atomic force microscopy (AFM). Also the optical properties of the layers were studied by diffuse reflectance spectroscopy (DRS) spectra. The morphology of the surfaces was obtained by scanning elec...