Yasuhiro Niwa

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part-time lecturer

Ibaraki University

Japan

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About

Yasuhiro Niwa is a part-time lecturer at Ibaraki University, Japan. His research areas include the synthesis and characterization of materials for ferroelectric applications, the study of electronic and structural relaxations in photoexcited materials, as well as advanced imaging techniques for X-ray absorption spectra. He has also contributed to the understanding of local structural disorders in high-entropy alloys and has explored catalytic activities related to nitrogen vacancy sites in specific compounds.

Recent Grants

Grant: Close

Visualization of reaction trigger in reactions at metal/solution interfaces accompanying solution and precipitation

Open Date: 2015-04-01

Close Date: 2018-03-31

Grant: Close

Development of sub-nano second time-resolved XAFS technoque

Open Date: 2004-01-01

Close Date: 2007-12-31

Articles (22)

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2025

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2023

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2022

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2022

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2022

Collaborators (10)

Norihito Fukui

Assistant Professor

Nagoya University

JAPAN

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Reiji KUMAI

Professor

High Energy Accelerator Research Organization

JAPAN

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Hitoshi Abe

Associate Professor

Ibaraki University

JAPAN

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Atsushi Tsukazaki

JAPAN

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N. Hanasaki

JAPAN

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Daiki Kido

Assistant Professor

High Energy Accelerator Research Organization

JAPAN

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Hiroshi KUMIGASHIRA

Professor

Tohoku University

JAPAN

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Hiroshi Shinokubo

Professor

Nagoya University

JAPAN

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Hideo Hosono

Tokyo Institute of Technology

JAPAN

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Yasuyuki Kato

Lecturer

University of Tokyo

JAPAN

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Yasuhiro Niwa

Research Interests

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About

Recent Grants

Articles (22)

Charge-balanced synthesis and characterization of SnTiO3: toward a lead-free ferroelectric material

Electronic and Structural Relaxation of Photoexcited WO3 Observed by Femtosecond Resonant X-ray Emission Spectra

Chemical State Evolution of Iron Ore Sinter Investigated by Wide-Area Imaging XAFS

Global cross-database search system for X-ray absorption spectra

Long-period stacking ordered structure in Mg-Y-Co-Ni alloy

Visualization of four-dimensional X-ray absorption fine structure data using a virtual reality system

Thermochemical conversion of an MCl2/M (M = Co, Ni, Cu) couple as an index of electrochemical conversion voltage

In situ pump-flow-probe XAFS study of photoexcited electron transfer over single atom-Pt/CoOOH photocatalysts

Ammonia decomposition mediated at nitrogen vacancies on NaCl-type binary metal nitrides supporting transition metal nanoparticles

Local structural disorder introduced by Cr in fcc high-/medium-entropy alloys consisting of 3d transition metal elements

Effects of nitrogen vacancy sites of oxynitride support on the catalytic activity for ammonia decomposition

Ammonia Decomposition over Water‐Durable Hexagonal BaTiO3−xNy‐Supported Ni Catalysts

Berry curvature contributions of kagome-lattice fragments in amorphous Fe–Sn thin films

Boosted Activity of Cobalt Catalysts for Ammonia Synthesis with BaAl2O4–xHy Electrides

Structural Analysis of the LiCoPO4 Electrode/NASICON-Type Li1.3Al0.3Ti1.7(PO4)3 Solid Electrolyte Interface

Oxidation-induced nanolite crystallization triggered the 2021 eruption of Fukutoku-Oka-no-Ba, Japan

Solid–liquid transitions in Mn-based ionic liquids [MeIM]2[MnBr4] and [EtIM]2[MnBr4] producing emission spectra with narrow green bands

Realization of Stacked-Ring Aromaticity in a Water-Soluble Micellar Capsule

Multiphase-solid fluid inclusions in HP-LT eclogite facies rock (Zavkhan Terrane, Western Mongolia): evidence for the evolution from saline to hypersaline fluids during metamorphism in subduction zone

Nanoscale in situ observation of damage formation in carbon fiber/epoxy composites under mixed-mode loading using synchrotron radiation X-ray computed tomography

Low-Temperature Methanol Synthesis by a Cu-Loaded LaH2+x Electride

Metastable structure of photoexcited WO<sub>3</sub> determined by the pump-probe extended X-ray absorption fine structure spectroscopy and constrained thorough search analysis

Collaborators (10)

Norihito Fukui

Reiji KUMAI

Hitoshi Abe

Atsushi Tsukazaki

N. Hanasaki

Daiki Kido

Hiroshi KUMIGASHIRA

Hiroshi Shinokubo

Hideo Hosono

Yasuyuki Kato

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