A5089034712- Metal-Organic Frameworks: Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Covalent Organic Framework Applications
- Electrocatalysts for Energy Conversion
- Advanced X-ray and CT Imaging
- Radiation Dose and Imaging
- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
- Advanced Photocatalysis Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Digital Radiography and Breast Imaging
- Radiomics and Machine Learning in Medical Imaging
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Atmospheric chemistry and aerosols
- Ophthalmology and Visual Impairment Studies
- Advancements in Battery Materials
- Electronic and Structural Properties of Oxides
- CO2 Reduction Techniques and Catalysts
- Graphite, nuclear technology, radiation studies
- Ultrasound in Clinical Applications
- Head and Neck Cancer Studies
- Mosquito-borne diseases and control
- Virology and Viral Diseases
Tohoku University
2007-2024
Sendai University
2021
National Institute of Special Education
2000
Lithium–oxygen batteries show great promise as energy storage devices but suffer from high overpotential, which is a major cause of poor cycle stability. To reduce the catalysis on carbon-based cathode crucial. This work examines sequential containing basal defects and Ru nanoparticles. A new type carbon fabricated by dispersing nanoparticles onto highly mesoporous framework mainly single-walled curved graphene, has abundant few edge sites. novel exhibits unique forming two distinct...
The aqueous phase synthesis of esters via oxidative coupling the alcohols catalyzed by carbon-supported gold catalysts is one environmentally benign approaches, but remains challenging. To understand the...
S-rich microporous carbon materials are fabricated by the carbonization of rationally designed precursor molecules, which in turn function as catalyst supports for single-atomic Pt species electrochemical hydrogen oxidation reaction.
Journal Article Physician-received scatter radiation with angiography systems used for interventional radiology: comparison among many X-ray Get access Koichi Chida, Chida * 1Department of Radiological Technology, Faculty Medicine, School Health Sciences, Tohoku University, 2-1 Seiryo, Aoba, Sendai 980-8575, Japan *Corresponding author: chida@mail.tains.tohoku.ac.jp Search other works by this author on: Oxford Academic PubMed Google Scholar Yoshiaki Morishima, Morishima 2Department...
Cardiac interventional procedures have been increasing year by year. However, radiation skin injuries still reported. There is a necessity to measure the patient entrance dose (ESD), but an accurate measurement method has not established. To ESD, lot of radiophotoluminescence dosemeters (RPLDs) provide direct actual ESD at points they are arrayed. The purpose this study was examine characteristics RPLD ESD. As result, X-ray permeable (with no tin filter) did interfere with percutaneous...
We have succeeded in the synthesis of a new type ordered carbonaceous framework (OCF) with developed microporosity and non-stacked graphene-based framework, which led to exhibition unique flexibility.
Abstract Rigid three-dimensional π-skeletons are useful building blocks for organic porous materials but only a few types of compounds available as compared with variety planar blocks. Herein, we report that hexa-aminated trinaphtho[3.3.3]propellane was readily prepared by two-step reaction sequence from non-functionalized propellane in moderate yield and active toward condensation boronic acids aldehydes. Solvothermal terephthalaldehyde gave an amorphous polymeric solid BET surface area,...
Microporous molecular crystals are promising materials because of their designable porosity as well resistance to chemical and other stimuli. Here, we developed microporous cocrystals by taking advantage the specific interactions between porphyrins fullerene molecules. Single-crystal X-ray diffraction analysis revealed that one nickel(II) porphyrin interacts with two molecules form a two-dimensional honeycomb network an eclipsed stacking mode, providing one-dimensional void channels. After...
Carbon materials with 3D-ordered nanopores doped metals and nitrogen were synthesized from strategically designed phthalocyanines via the self-assembly of Fe 3 O 4 nanoparticles. Their catalytic activity was determined by metals.
Journal Article Examination of the long-term stability radiation survey meters and electronic pocket dosemeters Get access Koichi Chida, Chida * 1Department Radiological Technology, School Health Sciences, Faculty Medicine, Tohoku University, 2-1 Seiryo, Aoba, Sendai 980-8575, Japan *Corresponding author: chida@mail.tains.tohoku.ac.jp Search for other works by this author on: Oxford Academic PubMed Google Scholar Yuko Nishimura, Nishimura 2Department College Medical Seiryoi, Sato, Sato Ayumi...
Helically aligned fused carbon hollow nanospheres on multiwalled nanotubes are formed as a new form of helical structure with optical activity and chiral spaces showing discrimination ability without the attachment compounds.
Porous materials synthesized through bottom-up approaches, such as metal–organic frameworks and covalent organic frameworks, have attracted attention owing to their design flexibility for functional materials. However, achieving the chemical thermal stability of these various applications is challenging considering reversible coordination bonds irreversible in frameworks. Thus, ordered carbonaceous (OCFs) emerge a promising class bottom–up with good periodicity, stability, electrical...