In this work, we reported a facile one-pot hydrothermal method to synthesize MnPO4·H2O nanowire/graphene oxide composite material with coated graphene oxide. Transmission electron microscopy and scanning electron microscope were employed to study its morphology information, and X-ray diffraction was used to study the phase and structure of the material. Additionally, X-ray photoelectron spectro...

Copper oxides have been of considerable interest as electrocatalysts for CO2 reduction (CO2R) in aqueous electrolytes. However, their role as an active catalyst in reducing the required overpotential and improving the selectivity of reaction compared with that of polycrystalline copper remains controversial. Here, we introduce the use of selected-ion flow tube mass spectrometry, in concert with...

The electroanalytical technique Absence of Gradients and Nernstian Equilibrium Stripping (AGNES) has been extended by applying stripping chronopotentiometry (SCP) as the re-oxidation stage in the determination of the free concentration of Zn(2+), Cd(2+) and Pb(2+). This new approach, called AGNES-SCP, has been implemented with screen-printed electrodes (SPE) and the standard Hanging Mercury Dro...

Electrochemical properties of various rock-shaped-CuO/graphite (G) composites and monoclinic structure CuO nanoparticles as the cathode versus a zinc plate as the anode in a 4M NaOH electrolyte were elucidated by electrochemical impedance spectroscopy (EIS) and chronopotentiometry (CP) in a two electrode configuration cell. Various values of G 9, 16 and 28 wt% were prepared and studied as catho...

Iodide redox reactions in molten NaI/AlCl 3 are shown to generate surface-blocking films, which may limit the useful cycling rates and energy densities of sodium batteries below 150 °C. An experimental investigation electrode interfacial stability at 110 °C reveals source reaction rate limitations. Electrochemical experiments a 3-electrode configuration confirm an increase resistance on surface...

An all-solid-state fluoride ion-selective electrode (ISE) was prepared using LaF3 single crystal with poly(3,4-ethylenedioxythiophene (PEDOT) as the solid contact layer. In contrast to polymer-based ISEs, crystalline membrane-based ISEs have not been used for device, thereby prohibiting integration of on a chip. The ISE developed in this study exhibited superior sensitivity (−56.0±0.9 mV/dec) a...

A rapid and reliable oxygen elimination system was evaluated here for the electroanalytical study of metals. Dissolved removed locally in vicinity a sensor by means electrochemical filter constructed from platinum grids. Three metals (Cd, Pb, Zn) were determined stripping chronopotentiometry (SCP) at mercury film screen-printed electrode. Limits detection nanomolar range under optimized experim...