Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Yoshinori Yonesaki"'
Publikováno v:
Polymers, Vol 3, Iss 1, Pp 1-9 (2010)
Ternary hybrid film composed of a-zirconium phosphate nanosheet, 1,2-bis(dimethylchlorosilyl)ethane and polypyrrole was prepared by anodic electrodeposition. In the hybrid film, ordered a-zirconium nanosheets with grafts by silylation lay down parall
Externí odkaz:
https://doaj.org/article/d51f294ee7f94d03ab43d11529f25082
Autor:
Akira Miura, Takahiro Takei, Shu Yin, Chongshen Guo, Nobuhiro Kumada, Xiaoyong Wu, Qiang Dong, Tsugio Sato, Yoshinori Yonesaki
Publikováno v:
Applied Catalysis B: Environmental. 147:741-747
Nickel hydroxide (β-Ni(OH) 2 ) nanosheets with a diameter of 400 nm and a thickness of 20 nm were successfully synthesized by a template and surfactant-free solvothermal route in a very simple system composed of LiOH·H 2 O and Ni-naphthenate. Furth
Autor:
Yoshinori Yonesaki
Publikováno v:
Journal of Solid State Chemistry. 201:324-329
Emission properties of Eu2+-doped Ba(Sr, Ca)2MgSi2O8 are discussed in terms of the crystal structure refined by Rietveld method. Ba(Sr, Ca)2MgSi2O8 has glaserite-type layered structure. In response to Sr/(Sr+Ca) ratio, the layer-framework build up by
Autor:
Yoshinori Yonesaki
Publikováno v:
Journal of Solid State Chemistry. 197:166-171
Bright red luminescence is observed from Mn 2+ -doped olgite-type Na 2 BaMgP 2 O 8 with the aid of Eu 2+ or Ce 3+ sensitizer. Under ultraviolet (UV) light, Na 2 BaMgP 2 O 8 : Eu 2+ and Na 2 BaMgP 2 O 8 : Ce 3+ exhibit intense near-UV emissions derive
Publikováno v:
Journal of Solid State Chemistry. 196:404-408
Li2BaMgP2O8 and Na2BaMgP2O8 were synthesized by a standard solid state reaction. Structural analyses have revealed that Li2BaMgP2O8 is a member of the olgite family, as is the case with Na2BaMgP2O8. The layer-framework build up by corner-sharing MgO6
Autor:
Qiang Dong, Yoshinori Yonesaki, Takahiro Takei, Hiroaki Ota, Nobuhiro Kumada, Hiroyuki Takahashi, Akira Miura
Publikováno v:
Ceramics International. 38:2153-2157
Porous materials were prepared from colored waste glass by hydrothermal treatment with Na 2 CO 3 aqueous solution. The resultant specific surface area was approximately 140 m 2 /g at maximum. Specific surface area increased at first, reached a maximu
Publikováno v:
Materials Research Bulletin. 46:1896-1901
Partially substituted proton-type birnessite were prepared by solid state reaction and their structures were refined. The formed birnessite with no substitution is identified to rhombohedral phase. In the case of substitution treatment by V and Cr fo
Autor:
Nur Suhaiza Binti Mohamad, Qiang Dong, Nobuhiro Kumada, Nobukazu Kinomura, Akira Miura, Yoshinori Yonesaki, Junji Yamanaka, Takahiro Takei
Publikováno v:
Journal of Alloys and Compounds. 509:8738-8741
A simple solid-state reaction was used to apply a vitreous-phase coating onto Eu 2+ -doped BaCa 2 MgSi 2 O 8 blue-phosphor particles. The vitreous phase was generated by liquid phase sintering at 1200 °C. The coated phosphor exhibited resistant to a
Autor:
Nobukazu Kinomura, W. Zhang, Yoshinori Yonesaki, N. Kumada, Qiang Dong, Takahiro Takei, T. Mochizuki
Publikováno v:
Powder Diffraction. 26:244-247
A new barium copper niobate, Ba4CuNb3O12, was successfully prepared by high-temperature solid-state reaction in an inert atmosphere. Rietveld-refinement analysis of the XRD data of the compound showed that it has the 8H-type hexagonal perovskite stru
Publikováno v:
Materials Research Bulletin. 46:1156-1162
Hexagonal cobalt hydroxide (β-Co(OH) 2 ) nanosheets over a size range from 100 nm to 1 μm were synthesized using a very simple hydrothermal route with cobalt naphthenate as the cobalt source. Additionally, hexagonal cobalt oxide (Co 3 O 4 ) nanorin