[Exploring Unknown Materials] Year Started : 2022

Masaki Azuma

Development of functional perovskite and related compounds utilizing amorphous precursors

Research Director
Masaki Azuma

Professor
Institute of Innovative Research
Tokyo Institute of Technology

Collaborator
Keigo Kamata Professor
Institute of Innovative Research
Tokyo Institute of Technology
Yu Kumagai Professor
Institute for Materials Research
Tohoku University
Yuki Sakai Researcher
Development of next-generation functional oxide materials project
Kanagawa Institute of Industrial Science and Technology
Outline

The need for new materials and substances in the energy and environmental fields is increasing for the construction of a sustainable society. In this research, we target negative thermal expansion materials and selective oxidation catalyst materials, both of which are highly desired in industry, and explore new materials by a new method of combined high-throughput synthesis of multi-element compounds from amorphous precursors and machine learning.

Hitoshi Tabata

Creation of Oxide Materials with Innovative Functions Aided by Environmental Fluctuation

Research Director
Hitoshi Tabata

Professor
The Graduate School of Engineering
The University of Tokyo

Collaborator
Tamio Oguchi Specially Appointed Professor
Graduate School of Engineering Science
Osaka University
Iwao Kawayama Associate Professor
Graduate School of Energy Science
Kyoto University
Munetoshi Seki Associate Professor
Graduate School of Engineering
The University of Tokyo
Outline

We are creating sensor, memory, and computation materials utilizing dipole and spin coupling due to flexoelectricity induced by strain gradient lattice distortion, taking advantage of the versatile physical properties of functional oxides and high crystal structural tolerance due to ionic bonding properties. Aiming to create new functions for oxide materials, we are inspired by biological functionality and actively utilize “thermal fluctuation,” which has usually been considered a “noise,” by using it as an energy source in the environment. We will design and develop innovative low-power-consumption and/or high-sensing materials based on the “stochastic resonance” principle.

Ryuji Tamura

Phason engineering: Materials innovation via modification of atomic tiling

Research Director
Ryuji Tamura

Professor
Faculty of Advanced Engineering
Tokyo University of Science

Collaborator
Keiichi Edagawa Professor
Institute of Industrial Science
The University of Tokyo
Satoshi Kameoka Professor
Institute of Multidisciplinary Research for Advanced Materials
Tohoku University
Ryo Yoshida Professor
The Institute of Statistical Mathematics
Inter-University Research Institute Corporation Research Organization of Information and Systems
Outline

We propose and establish new materials design concept “Phason engineering”, which enables us to introduce local and global tiling deformation into materials through the phason degree of freedom, in addition to conventional materials design methodology. The target materials are 3D metallic and 2D van der Waals quasicrystals(QCs) and approximants(ACs) which are expected to exhibit superior properties impossible for ordinary crystals. In this project, we elucidate the influence of the local/global modification of atomic tiling on the materials properties, and pursue novel and peculiar magnetic, electronic and catalytic properties in the above QCs and ACs.

Taro Hitosugi

Development of Molecular-Crystal Solid-State Batteries

Research Director
Taro Hitosugi

Professor
Graduate School of Science
The University of Tokyo

Collaborator
Yoshitaka Tateyama Deputy Director
Center for Green Research on Energy and Environmental Materials
National Institute for Materials Science
Makoto Moriya Associate Professor
Academic Institute
Shizuoka University
Outline

Focusing on molecular crystals, we develop high-performance all-solid-state batteries. We work on the following three projects by combining automated material exploration technologies and theoretical calculations. 1) Development of molecular crystal composites showing high ionic conductivity, 2) Investigating the superionic conductivity mechanism at the molecular crystals and filler interfaces, 3) Demonstrating a self-healing all-solid-state battery, and 3) Demonstrating a self-healing all-solid-state battery.

Teppei Yamada

Creation of phase-transition nanofluids toward high-efficiency thermoelectric conversion

Research Director
Teppei Yamada

Professor
Graduate School of Science
The University of Tokyo

Collaborator
Yoichi Murakami Professor
Institute of Innovative Research
Tokyo Institute of Technology
Hirofumi Yoshikawa Professor
School of Engineering
Kwansei Gakuin University
Outline

Dispersions of nanoparticles that can undergo a phase transition upon electrochemical stimulation are referred to here as ā€¯phase-transition nanofluids”. The phase-transition nanofluids have fluidity and the ability to transfer electrons in response to temperature and are expected to become new thermoelectric material. In the project, we build up the basic science of the material and thermoelectrics.

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