Mar 6, 2003 · Here we report that Na x CoO 2 · y H 2 O (x ≈ 0.35, y ≈ 1.3) is a superconductor with a Tc of about 5 K. This compound consists of two-dimensional CoO 2 layers separated by …

CuO sample shows well-defined peaks at different angles which are marked with a black symbol in Fig. 1a. consistent with the XRD pattern of CuO, there are two sharper diffraction peaks …

In this study, a novel solvent-less processing route for producing CoO2/GrO nanostructures by solid-state thermal decomposition has been developed. Cobalt (II) acetate nanostructures …

Jul 31, 2003 · A small amount of the hydrated superconducting phase Na x CoO 2 ·1.3H 2 O (c ≈ 19.6 Å) is detectable by XRD for the 1× sample.

Oct 25, 2021 · The size and morphology of samples S1 and S2 were then checked by transmission electron microscopy (TEM) while the crystalline structure was analyzed by X-ray …

Cyclic voltammetry (CV) and XRD patterns of the sample after different cycles indicate that faradaic reaction between Co and Co(OH)2 accounts for most of the discharge capacity.

Aug 22, 2024 · An X-ray diffraction (XRD) pattern obtained from the synthesis product is shown in Figure S7 (Supporting Information). It reveals that the bulk precursor has completely reacted, …

Oct 1, 2019 · Here we systematically investigate the de-intercalation of the intervening alkali metal and metal oxide layers, and the subsequent intercalation of protons for an extensive series of …

This study shows the relation between changes in the crystal structure and electrode properties of LiCoO 2 in thin-film solid-state batteries investigated by in situ X-ray diffraction (XRD) …

Oct 29, 2002 · In this study, two reversible plateaus at 4.55 and 4.63 V were observed in the voltage profile of cells, which were then studied by in situ X-ray diffraction (XRD).