Itaru Oikawa
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View article: Design of High‐Energy Anode for All‐Solid‐State Lithium Batteries–A Model with Borohydride‐Based Electrolytes
Design of High‐Energy Anode for All‐Solid‐State Lithium Batteries–A Model with Borohydride‐Based Electrolytes Open
To produce high‐energy‐density all‐solid‐state secondary batteries, it is essential to develop high‐energy anodes comprising hosts that enable nonmetallic lithium insertion without dendritic growth and the formation of high‐resistance inte…
View article: Insights Into Low‐Temperature Cation Ordering in Fe‐Added Ce–Zr‐Based Oxides
Insights Into Low‐Temperature Cation Ordering in Fe‐Added Ce–Zr‐Based Oxides Open
CeO 2 –ZrO 2 (CZ) solid solutions are widely utilized to control the oxygen partial pressure of automobile exhaust purification systems owing to their high oxygen storage capacity (OSC) related to the valence change of Ce ions upon reducti…
View article: Spectroscopic analysis of Cu<sup>2+</sup> dissolved in Y- and Yb-doped barium zirconates and its impact on sinterability and proton conduction
Spectroscopic analysis of Cu<sup>2+</sup> dissolved in Y- and Yb-doped barium zirconates and its impact on sinterability and proton conduction Open
The sintering behavior of BaCe 0.4 Zr 0.4 Y 0.1 Yb 0.1 O 3− δ (BCZYY441) with CuO as the sintering agent was investigated. Cu 2+ occupies interstitial sites along with Ba deficiency, which facilitates liquid-phase formation and densificati…
View article: Dissociative Oxygen Adsorption and Incorporation in Co<sub>3</sub>O<sub>4</sub>-Dispersed BaZr<sub>0.9</sub>Sc<sub>0.1</sub>O<sub>2.95</sub> for a PCFC Cathode
Dissociative Oxygen Adsorption and Incorporation in Co<sub>3</sub>O<sub>4</sub>-Dispersed BaZr<sub>0.9</sub>Sc<sub>0.1</sub>O<sub>2.95</sub> for a PCFC Cathode Open
Proton-conducting fuel cells (PCFCs), which operate at lower temperatures than conventional solid oxide fuel cells (SOFCs) using an oxide-ion conductor, have attracted considerable attention owing to their high energy-conversion efficiency…
View article: Highly Refractive Transparent Half‐Heuslers for Near Infrared Optics and Their Material Design
Highly Refractive Transparent Half‐Heuslers for Near Infrared Optics and Their Material Design Open
Advanced control of light focusing, reflection, and transmission is possible with highly refractive transparent materials; however, such materials are difficult to discover because of the negative correlation between the refractive index a…
View article: Dissociative Oxygen Adsorption and Incorporation in Co<sub>3</sub>O<sub>4</sub>-Dispersed BaZr<sub>0.9</sub>Sc<sub>0.1</sub>O<sub>2.95</sub> for PCFC Cathode
Dissociative Oxygen Adsorption and Incorporation in Co<sub>3</sub>O<sub>4</sub>-Dispersed BaZr<sub>0.9</sub>Sc<sub>0.1</sub>O<sub>2.95</sub> for PCFC Cathode Open
The development of air electrodes with superior surface oxygen exchange properties at intermediate temperatures is crucial for improving the efficiency of protonic ceramic fuel cells. This study evaluated the surface exchange properties of…
View article: CSD 2325926: Experimental Crystal Structure Determination
CSD 2325926: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: Proton conductivity of Li<sup>+</sup>–H<sup>+</sup> exchanged Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> dense membranes prepared by molten long-chain saturated fatty acids
Proton conductivity of Li<sup>+</sup>–H<sup>+</sup> exchanged Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> dense membranes prepared by molten long-chain saturated fatty acids Open
Alkali-proton exchange throughout ceramic dense bodies becomes possible using molten long-chain saturated fatty acids. As a case study, 91% Li + –H + exchange of Al-doped cubic garnet-type Li 7 La 3 Zr 2 O 12 dense membranes was demonstrat…
View article: Local Structure and Mixed Proton-Hole Conduction in Y and Al-Doped BaZrO<sub>3</sub>
Local Structure and Mixed Proton-Hole Conduction in Y and Al-Doped BaZrO<sub>3</sub> Open
Enhancing proton-hole mixed conduction is one of the promising methods to improve the cathode performance of proton-conducting fuel cells. In this study, Al-doping is conducted to enhance the hole conduction in Y-doped BaZrO 3 . The relati…
View article: CSD 2154053: Experimental Crystal Structure Determination
CSD 2154053: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: Antireflective black coatings comprised of Ag–Fe–O thin films with high electrical resistivity
Antireflective black coatings comprised of Ag–Fe–O thin films with high electrical resistivity Open
Black antireflective (AR) coatings with electric insulative properties are required to improve the visibility of touch panel displays in the turned-on state and their appearance in the turned-off state. In this study, multilayer black AR s…
View article: Metal-supported SOFC Fabricated by Tape Casting and Its Characterization: A Study of the Co-sintering Process
Metal-supported SOFC Fabricated by Tape Casting and Its Characterization: A Study of the Co-sintering Process Open
Metal-supported SOFC consists of metallic and ceramic multilayers. Since the cell has to be flat, interaction between the layers that results in a flat sintered layer needs to be studied. The method used here was changing the starting mate…
View article: Hydride-based antiperovskites with soft anionic sublattices as fast alkali ionic conductors
Hydride-based antiperovskites with soft anionic sublattices as fast alkali ionic conductors Open
Most solid-state materials are composed of p-block anions, only in recent years the introduction of hydride anions (1s 2 ) in oxides (e.g., SrVO 2 H, BaTi(O,H) 3 ) has allowed the discovery of various interesting properties. Here we exploi…
View article: Optically Black and Electrically Insulating Ag–Fe–O‐Based Thin Films for Touch Panel Displays
Optically Black and Electrically Insulating Ag–Fe–O‐Based Thin Films for Touch Panel Displays Open
Antireflection coatings with optically black layers bring a classy turn-off appearance to electronic displays. The black layers used in capacitive touch-panel displays are required to have a large absorption coefficient throughout the visi…
View article: Magnesium Doping for the Promotion of Rutile Phase Formation in the Pulsed Laser Deposition of TiO<sub>2</sub> Thin Films
Magnesium Doping for the Promotion of Rutile Phase Formation in the Pulsed Laser Deposition of TiO<sub>2</sub> Thin Films Open
The preparation of a transparent and smooth rutile-type TiO2 thin film without the use of the crystallographical effect of the substrate is a challenge for the advanced utilization of TiO2 in the fields of optics and solid state ionics. Be…