Doctor of Engineering(Nara Institute of Science and Technology)
Research funding number
30432248
ORCID ID
0000-0002-9548-9835
Profile
My research topic is development of novel hybridmaterials via fusion of function and structure of multiple components of organic and/or inorganic materials.
Liquid Phase Synthesis of Zn-Ga Layered Double Hydroxide Nanocrystals and Its Conversion to GaN:ZnO Solid Solution, Best Poster Award, 16th Meeting of the Japanese Sol-Gel Society
Winner: R. Yoshiyuki, Y. Hayashi, K. Katagiri, K. Inumaru, Y. Tokudome
CERAMICS INTERNATIONAL 45(7) 9325-9329 May 2019 [Refereed]
A facile method was successfully developed to prepare lanthanum oxycyanamide, La2O2CN2. Urea was selected as a cyanamidation agent, instead of gaseous NH3 with graphite containers, to achieve a safe and simple synthetic strategy. Through the optim...
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY 2019(9) 1257-1264 Mar 2019 [Refereed]
A facile method was successfully developed to prepare perovskite-type metal oxynitrides, LaTiO2N, from La2Ti2O7 as a precursor in an atmosphere of N-2. Urea was employed as a solid-state nitriding agent, instead of gaseous NH3, to increase the saf...
INORGANIC CHEMISTRY 57(21) 13953-13962 Nov 2018 [Refereed]
A solid solution of GaN and ZnO (GaN:ZnO) is promising as a photocatalyst for visible-light-driven overall water splitting to produce H-2. However, several obstacles still exist in the conventional preparation procedure of GaN:ZnO. For example, th...
Structurally colored coating films formed with white silica particles and carbon black particles
Kiyofumi Katagiri
NEW GLASS 124(33) 9-12 Jul 2018 [Refereed][Invited]
Chemical Functions of Nanocomposite Materials Formed wirh Photocatalyst Nanoparticles Surrounded by Mesoporous Silica
Kei Inuamru; Kiyofumi Katagiri
Journal of the Society of Inorganic Materials, Japan 25(394) 156-161 May 2018 [Refereed][Invited]
RSC ADVANCES 8(20) 10776-10784 Mar 2018 [Refereed]
In recent years, colloidal arrays of submicrometer-sized monodisperse particles used as structurally colored coatings have drawn great attention due to their non-bleaching properties and low impact on human health and the environment. In this pape...
The catalytic activity of zirconium oxide (ZrO2) nanocrystals for the reaction of carbon dioxide (CO2) with methanol to form dimethylcarbonate (DMC) was investigated. ZrO2 nanocrystals prepared by hydrothermal synthesis at various temperatures wer...
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 18(1) 110-115 Jan 2018 [Refereed][Invited]
pH-Responsive smart capsules were developed by the layer-by-layer assembly with a colloid-templating technique. Polystyrene (PS) particles were employed as core templates. Acid-soluble inorganic nanosheets were prepared from Mg-Al layered double h...
Development of Novel Synthetic Processes of Metal Oxycyanamide (RE2O2CN2 (RE = Y, La)) Phosphors by Using Urea
K. Kawanishi, R. Okada, K. Katagiri, K. Inumaru
The Ceramic Society of Japan Annual Meeting 2019 26 Mar 2019 The Ceramic Society of Japan
RE2O2CN2:Eu3+ (RE = Y, La) phosphors were prepared from the mixture of RE(OH)3:Eu3+ and urea after calcination under N2 flow. Through the optimization of reaction conditions, including content of urea and heat-treatment temperature, single-phase L...
Preparation and Characterization of GaN:ZnO by Using Various Nitriding Agents
Y. Fujii, Y. Hayashi, K. Katagiri, K. Inumaru, Y. Masubuchi, S. Kinoshita, Y. Noda, A. Miyoshi, K. Maeda
The Ceramic Society of Japan Annual Meeting 2019 25 Mar 2019 The Ceramic Society of Japan
A solid solution of GaN and ZnO (GaN:ZnO) is promising as a photocatalyst for overall water splitting under visible light irradiation. Recently, we have developed a preparation process of GaN:ZnO by using Zn-Ga layered double hydroxide as a precur...
Robust structurally colored coatings prepared via cathodic electrophoretic deposition of SiO2 particles
67th Symposium on Macromolecules 12 Sep 2018 The Society of Polymer Science, Japan
Creation of Advanced Functional Materials Based on Inorganic Particles as Element-Blocks[Invited]
Kiyofumi Katagiri
The Ceramic Society of Japan The 31st Fall Meeting 5 Sep 2018 The Ceramic Society of Japan
Inorganic particles possess a number of features which are advantageous for applications in the various fields. In this study, novel inorganic particle-based hybrid materials have been employed as element-blocks for development of novel functional...
Development of Novel Preparation Procedure of Metal Oxynitrides Using Solid Nitriding Agents
Y. Katakami, Y. Hayashi, K. Katagiri, K. Inumaru
The Ceramic Society of Japan The 31st Fall Meeting 5 Sep 2018 The Ceramic Society of Japan
etal oxynitrides are expected as novel functional materials, including photocatalysts and dielectric materials. Conventionally, metal oxynitrides are prepared under harmful NH3 flow at high temperatures. Therefore, development of a preparation pro...
Liquid Phase Synthesis of Zn-Ga Layered Double Hydroxide Nanocrystals and Its Conversion to GaN:ZnO Solid Solution
R. Yoshiyuki, Y. Hayashi, K. Katagiri, K. Inumaru, Y. Tokudome
16th Meeting of The Japanese Sol-Gel Society 7 Aug 2018 The Japanese Sol-Gel Society
In this study, we have demonstrated the facile preparation of Zn-Ga LDH nanocrystals as precursors for GaN:ZnO. We have investigated the reaction conditions including the quantities of reagents, and the reaction temperature to obtain the LDH with ...
Synthesis of Eu3+-doped Fluorescent Nanoparticles–Mesoporous Silica Composite and Elongation of Its Excitation Wavelength via Modification Using Organic Ligands
M. Kawashimo, K. Katagiri, K. Inumaru
16th Meeting of the Japanese Sol-Gel Society 7 Aug 2018 The Japanese Sol-Gel Society
LaF3:Eu3+ nanoparticles (NPs) were successfully prepared as fluorescent NPs via hydrothermal process. Composites formed with these NPs and mesoporous silica (MPS) were prepared to maintain high specific surface area of NPs. Fluorescent properties ...
Preparation of Structurally Colored Coating Films with High Abrasion Resistance via Cathodic Electrophoretic Deposition of Monodispersed SiO2 particles
R. Uesugi, K. Uemura, Y. Takeoka, K. Katagiri, K. Inumaru
16th Meeting of the Japanese Sol-Gel Society 7 Aug 2018 The Japanese Sol-Gel Society
Recently, we have developed the strategy for preparation of structurally colored coating films formed with array of SiO2 particles by the electrophoretic deposition (EPD) technique. However, the coating films have poor abrasion resistance. In this...
Bioinspired structurally colored coating films with tunable iridescence fabricated by electrophoretic deposition of silica particles
hiroshima-u.ac.jp
