Naofumi Uekawa : rechercher sur Z-Library

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1

Effect of alkali metal hydroxide on formation processes of zinc oxide crystallites from aqueous solutions containing Zn(OH)42? ions

Uekawa, Naofumi, Yamashita, Ryo, Jun Wu, Yong, Kakegawa, Kazuyuki

Journal:

Physical Chemistry Chemical Physics

Année:

2004

Langue:

english

Fichier:

PDF, 394 KB

english, 2004

2

Synthesis of Defect and Valence State Tuned Metal Oxide Nanoparticles with Colloid Chemical Solution Process: Control of Optical and Electrical Characteristics

Uekawa, Naofumi

Journal:

Chemistry Letters

Année:

2020

Fichier:

PDF, 1.26 MB

2020

3

Transition metal oxide films

Dr. Naofumi Uekawa, Prof. Katsumi Kaneko

Journal:

Advanced Materials

Année:

1995

Langue:

english

Fichier:

PDF, 388 KB

english, 1995

4

Low Temperature Synthesis and Characterization of Porous Anatase TiO2 Nanoparticles

Naofumi Uekawa, Jyunichi Kajiwara, Kazuyuki Kakegawa, Yoshinori Sasaki

Journal:

Journal of Colloid and Interface Science

Année:

2002

Langue:

english

Fichier:

PDF, 238 KB

english, 2002

5

Synthesis of stable sol of ZnS nanoparticles by heating the mixture of ZnS precipitate and ethylene glycol

Naofumi Uekawa, Takaaki Matsumoto, Takashi Kojima, Fumiyuki Shiba, Kazuyuki Kakegawa

Journal:

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Année:

2010

Langue:

english

Fichier:

PDF, 820 KB

english, 2010

6

Comparative examination of titania nanocrystals synthesized by peroxo titanic acid approach from different precursors

Yong-Jun Liu, Mami Aizawa, Zheng-Ming Wang, Hiroaki Hatori, Naofumi Uekawa, Hirofumi Kanoh

Journal:

Journal of Colloid and Interface Science

Année:

2008

Langue:

english

Fichier:

PDF, 291 KB

english, 2008

7

Design of pyroelectric properties by controlling compositional distribution

Kazuyuki Kakegawa, Sofia Saori Suzuki, Naofumi Uekawa

Journal:

Journal of the European Ceramic Society

Année:

2006

Langue:

english

Fichier:

PDF, 260 KB

english, 2006

8

Fabrication of Y3Al5O12-Al2O3 eutectic materials having ultra fine microstructure

Yohei Harada, Naofumi Uekawa, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Journal of the European Ceramic Society

Année:

2008

Langue:

english

Fichier:

PDF, 1.51 MB

english, 2008

9

Formation of Y3Al5O12–Al2O3 eutectic microstructure with off-eutectic composition

Yohei Harada, Naofumi Uekawa, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Journal of the European Ceramic Society

Année:

2008

Langue:

english

Fichier:

PDF, 1.20 MB

english, 2008

10

Formation of GdAlO3–Al2O3 composite having fine pseudo-eutectic microstructure

Yohei Harada, Kazuya Ayabe, Naofumi Uekawa, Takashi Kojima, Kazuyuki Kakegawa, Sung Jin Kim

Journal:

Journal of the European Ceramic Society

Année:

2008

Langue:

english

Fichier:

PDF, 1.89 MB

english, 2008

11

Effect of treatment conditions and titanium source on the hydrothermal synthesis of bismuth titanate particles

Takashi Kojima, Ikue Yoshida, Naofumi Uekawa, Kazuyuki Kakegawa

Journal:

Journal of the European Ceramic Society

Année:

2009

Langue:

english

Fichier:

PDF, 1.61 MB

english, 2009

12

Fabrication of dense material having homogeneous GdAlO3–Al2O3 eutectic-like microstructure with off-eutectic composition by consolidation of the amorphous

Yohei Harada, Naofumi Uekawa, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Journal of the European Ceramic Society

Année:

2009

Langue:

english

Fichier:

PDF, 356 KB

english, 2009

13

Molecular mechanism of capillary condensation of acetonitrile vapor on MCM-41 with the aid of a time-correlation function analysis of IR spectroscopy

Hideki Tanaka, Taku Iiyama, Naofumi Uekawa, Takaomi Suzuki, Akihiko Matsumoto, Michael Grün, Klaus K Unger, Katsumi Kaneko

Journal:

Chemical Physics Letters

Année:

1998

Langue:

english

Fichier:

PDF, 311 KB

english, 1998

14

Low-temperature synthesis of niobium oxide nanoparticles from peroxo niobic acid sol

Naofumi Uekawa, Takuji Kudo, Fumihiko Mori, Yong Jun Wu, Kazuyuki Kakegawa

Journal:

Journal of Colloid and Interface Science

Année:

2003

Langue:

english

Fichier:

PDF, 218 KB

english, 2003

15

Change in the compositional distribution in perovskite solid solutions during the sintering by SPS

Kazuyuki Kakegawa, Naofumi Uekawa, Yong Jun Wu, Yoshinori Sasaki

Journal:

Materials Science and Engineering: B

Année:

2003

Langue:

english

Fichier:

PDF, 202 KB

english, 2003

16

Synthesis of Lead Nickel Niobate–Barium Titanate System by Oxidation of Polyethylene Glycol–Cation Complex

Naofumi Uekawa, Takashi Sukegawa, Kazuyuki Kakegawa, Yoshinori Sasaki

Journal:

Journal of the American Ceramic Society

Année:

2002

Langue:

english

Fichier:

PDF, 113 KB

english, 2002

17

Microstructures and Pyroelectric Properties of Multicomposition 0.9PbZrO3·xPbTiO3·(0.1−x)Pb(Zn1/3Nb2/3)O3 Ceramics

Yong Jun Wu, Naofumi Uekawa, Yoshinori Sasaki, Kazuyuki Kakegawa

Journal:

Journal of the American Ceramic Society

Année:

2002

Langue:

english

Fichier:

PDF, 736 KB

english, 2002

18

Sintering of Lead Titanate Using a Spark-Plasma-Sintering Technique

Kazuyuki Kakegawa, Yukiko Kawai, YongJun Wu, Naofumi Uekawa, Yoshinori Sasaki

Journal:

Journal of the American Ceramic Society

Année:

2004

Langue:

english

Fichier:

PDF, 1.43 MB

english, 2004

19

Effects of Preparation Conditions on the Structural and Optical Properties of Spark Plasma-Sintered PLZT (8/65/35) Ceramics

Yong Jun Wu, Juan Li, Ryo Kimura, Naofumi Uekawa, Kazuyuki Kakegawa

Journal:

Journal of the American Ceramic Society

Année:

2005

Langue:

english

Fichier:

PDF, 1018 KB

english, 2005

20

Iron oxide films of a spinel structure from thermal decomposition of metal ion citrate complex

Uekawa, Naofumi, Kaneko, Katsumi

Journal:

Journal of Materials Research

Année:

1999

Langue:

english

Fichier:

PDF, 140 KB

english, 1999

21

Synthesis and evaluation of Zr0.5Ti0.5B2 solid solution

Jun-ichi Inagaki, Yukinori Sakai, Naofumi Uekawa, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Materials Research Bulletin

Année:

2007

Langue:

english

Fichier:

PDF, 1005 KB

english, 2007

22

Formation of porous spherical aggregated structure of ZnO nanoparticles by low-temperature heating of Zn(OH)2 in diol solution

Naofumi Uekawa, Shunsuke Iahii, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Materials Letters

Année:

2007

Langue:

english

Fichier:

PDF, 999 KB

english, 2007

23

Preparation of homogeneous Pb(ZrxTi1−x)O3 by a rapid-quenching technique and its compositional fluctuation

Young-Hwan Han, Makoto Ishii, Naofumi Uekawa, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Scripta Materialia

Année:

2007

Langue:

english

Fichier:

PDF, 291 KB

english, 2007

24

Preparation of oriented zinc oxide thin films by firing Zn–Al layered double hydroxide thin films

Naofumi Uekawa, Takahiro Saito, Takashi Kojima, Kazuyuki Kakegawa

Journal:

Materials Letters

Année:

2012

Langue:

english

Fichier:

PDF, 496 KB

english, 2012

25

Compositional fluctuation and dielectric properties of Pb(Zr0.3Ti0.7)O3 ceramics prepared by spark plasma sintering

Yong Jun Wu, Naofumi Uekawa, Kazuyuki Kakegawa, Yoshinori Sasaki

Journal:

Materials Letters

Année:

2002

Langue:

english

Fichier:

PDF, 139 KB

english, 2002

26

Sandwiched BaNd2Ti4O12/Bi4Ti3O12/BaNd2Ti4O12 ceramics prepared by spark plasma sintering

Yong Jun Wu, Naofumi Uekawa, Kazuyuki Kakegawa

Journal:

Materials Letters

Année:

2003

Langue:

english

Fichier:

PDF, 298 KB

english, 2003

27

Homogeneous precipitation of Cr3+–M2+ (M=Ni, Zn, Co, Cu) oxalate by oxidation of the polyethylene glycol–cation complex

Uekawa, Naofumi, Endo, Michio, Kakegawa, Kazuyuki, Sasaki, Yoshinori

Journal:

Physical Chemistry Chemical Physics

Année:

2000

Langue:

english

Fichier:

PDF, 156 KB

english, 2000

28

Nonstoichiometric properties of zinc oxide nanoparticles prepared by decomposition of zinc peroxide

Uekawa, Naofumi, Mochizuki, Naomi, Kajiwara, Jyunichi, Mori, Fumihiko, Wu, Yong Jun, Kakegawa, Kazuyuki

Journal:

Physical Chemistry Chemical Physics

Année:

2003

Langue:

english

Fichier:

PDF, 316 KB

english, 2003

29

Synthesis of nitrogen-doped ZnO particles by decomposition of zinc nitrate hexahydrate in molten ammonium salts

Uekawa, Naofumi, Kojima, Takashi, Kakegawa, Kazuyuki

Journal:

Journal of Materials Research

Année:

2009

Langue:

english

Fichier:

PDF, 605 KB

english, 2009

30

Characterization of oxides obtained by heating a mixture of peroxoniobic acid and peroxotitanic acid

Uekawa, Naofumi, Oosawa, Yusuke, Kojima, Takashi, Kakegawa, Kazuyuki

Journal:

Dalton Transactions

Année:

2011

Langue:

english

Fichier:

PDF, 373 KB

english, 2011

31

Control of orientation and electrical conductivity of doped ZnO films using a layered double hydroxide nanoparticle precursor and spark plasma sintering process

Uekawa, Naofumi, Saito, Takahiro, Kojima, Takashi, Kakegawa, Kazuyuki

Journal:

Scripta Materialia

Année:

2013

Langue:

english

Fichier:

PDF, 563 KB

english, 2013

32

Formation process of BaTiO3 particles by reaction between barium hydroxide aqueous solution and titania obtained by hydrolysis of titanium alkoxide

Zeng, Min, Uekawa, Naofumi, Kojima, Takashi, Kakegawa, Kazuyuki

Journal:

Journal of Materials Research

Année:

2007

Langue:

english

Fichier:

PDF, 353 KB

english, 2007

33

Mixed-valence formation in highly oriented Ti-doped iron oxide film

Uekawa, Naofumi, Watanabe, Masaaki, Kaneko, Katsumi, Mizukami, Fujio

Journal:

Journal of the Chemical Society Faraday Transactions

Année:

1995

Langue:

english

Fichier:

PDF, 692 KB

english, 1995

34

Effects of surface modification of α-FeOOH powder on the sintering process of ferrite compacts

Uekawa, Naofumi, Fukuda, Syuuhei, Kakegawa, Kazuyuki, Sasaki, Yoshinori

Journal:

Physical Chemistry Chemical Physics

Langue:

english

Fichier:

PDF, 338 KB

english

35

Electronic and molecular dynamics of chemisorption on ?-Fe2O3 with time-delayed injection of donor?acceptor gases

Kaneko, Katsumi, Kugawa, Shuichi, Ishida, Shigeki, Kadowaki, Yasushi, Uekawa, Naofumi, Suzuki, Takaomi

Journal:

Journal of the Chemical Society Faraday Transactions

Année:

1992

Langue:

english

Fichier:

PDF, 826 KB

english, 1992

36

Formation of ultrafine eutectic-like microstructures of various rare earth oxide-Al2O3 systems by use of amorphous phases

Harada, Yohei, Uekawa, Naofumi, Kojima, Takashi, Kakegawa, Kazuyuki

Journal:

Journal of Materials Research

Année:

2008

Langue:

english

Fichier:

PDF, 1.40 MB

english, 2008

37

Synthesis of rutile and anatase TiO2 nanoparticles from Ti-peroxy compound aqueous solution with polyols

Uekawa, Naofumi, Suzuki, Miki, Ohmiya, Takahiro, Mori, Fumihiko, Wu, Yong Jun, Kakegawa, Kazuyuki

Journal:

Journal of Materials Research

Année:

2003

Langue:

english

Fichier:

PDF, 192 KB

english, 2003

38

Pyroelectric Ceramics in PbZrO3-PbTiO3-Pb(Zn1/3Nb2/3)O3 System Prepared with Spark Plasma Sintering Technique

Wu, Yong Jun, Uekawa, Naofumi, Kakegawa, Kazuyuki, Sasaki, Yoshinori

Journal:

Key Engineering Materials

Année:

2002

Fichier:

PDF, 338 KB

2002

39

Spark Plasma Sintering of Transparent PbZrO3-PbTiO3-Pb(Zn1/3Nb2/3)O3 Ceramics

Wu, Yong Jun, Kimura, Ryo, Uekawa, Naofumi, Kakegawa, Kazuyuki, Sasaki, Yoshinori

Journal:

Japanese Journal of Applied Physics

Année:

2002

Langue:

english

Fichier:

PDF, 624 KB

english, 2002

40

Sintering Behavior of ZnO Nanoparticles and Preparation of Nanoporous ZnO Compacts

Uekawa, Naofumi, Mochizuki, Naomi, Kakegawa, Kazuyuki

Journal:

Key Engineering Materials

Année:

2004

Langue:

english

Fichier:

PDF, 619 KB

english, 2004

41

Characterization of CeO2 Fine Particles Prepared by the Homogeneous Precipitation Method with a Mixed Solutionof Ethylene Glycol and Polyethylene Glycol

Uekawa, Naofumi, Ueta, Masayuki, Wu, Yong Jun, Kakegawa, Kazuyuki

Journal:

Journal of Materials Research

Année:

2004

Langue:

english

Fichier:

PDF, 638 KB

english, 2004

42

SPS Using SiC Die

Kakegawa, Kazuyuki, Wen, Chun Ming, Uekawa, Naofumi, Kojima, Takashi

Journal:

Key Engineering Materials

Année:

2014

Langue:

english

Fichier:

PDF, 553 KB

english, 2014

43

Effect of the filtration of PbI 2 solution for zinc oxide nanowire based perovskite solar cells

Rahman, Md. Mijanur, Uekawa, Naofumi, Shiba, Fumiyuki, Okawa, Yusuke, Sakai, Masatoshi, Yamamoto, Kazunuki, Kudo, Kazuhiro, Konishi, Takehisa

Journal:

Japanese Journal of Applied Physics

Année:

2016

Langue:

english

Fichier:

PDF, 2.10 MB

english, 2016

44

Low Temperature Synthesis of Titania Gel Containing Anatase and Rutile

Uekawa, Naofumi, Kajiwara, Jyunichi, Miyatake, Kazuki, Kakegawa, Kazuyuki, Sasaki, Yoshinori

Journal:

Chemistry Letters

Année:

2000

Langue:

english

Fichier:

PDF, 287 KB

english, 2000

45

Synthesis of CeO 2 Spherical Fine Particles by Homogeneous Precipitation Method with Polyethylene Glycol

Uekawa, Naofumi, Ueta, Masayuki, Wu, Yong Jun, Kakegawa, Kazuyuki

Journal:

Chemistry Letters

Année:

2002

Langue:

english

Fichier:

PDF, 1.34 MB

english, 2002

46

Room-temperature Formation of Alkoxide-derived Anatase Nanoparticles by Peroxotitanic Acid Approach

Liu, Yong-Jun, Aizawa, Mami, Peng, Wen-Qin, Wang, Zheng-Ming, Hatori, Hiroaki, Uekawa, Naofumi, Kanoh, Hirofumi

Journal:

Chemistry Letters

Année:

2007

Langue:

english

Fichier:

PDF, 247 KB

english, 2007

47

Synthesis of ZnO Nanoparticles by Decomposition of Zinc Peroxide

Uekawa, Naofumi, Kajiwara, Jyunichi, Mochizuki, Naomi, Kakegawa, Kazuyuki, Sasaki, Yoshinori

Journal:

Chemistry Letters

Année:

2001

Langue:

english

Fichier:

PDF, 106 KB

english, 2001

48

Titanium oxide thin film preparation with sol coatings of plate and spindle-shaped nanoparticles for control of optical transmittance

WEN, Chun Ming, UEKAWA, Naofumi, KHAMFOO, Khakkhanang, KOJIMA, Takashi

Journal:

Journal of the Ceramic Society of Japan

Année:

2016

Langue:

english

Fichier:

PDF, 531 KB

english, 2016

49

Fabrication of Porous Titania Using Anisotropic Particles

KOJIMA, Takashi, SUZUKI, Rie, UEKAWA, Naofumi, KAKEGAWA, Kazuyuki

Journal:

Journal of the Ceramic Society of Japan

Année:

2007

Langue:

english

Fichier:

PDF, 600 KB

english, 2007

50

Synthesis of a stable sol of ZnO nanoparticles by low-temperature heating of Zn(OH)2 in ethylene glycol containing Zn2+ ions

UEKAWA, Naofumi, YAMAZAKI, Akinori, ISHII, Shunsuke, KOJIMA, Takashi, KAKEGAWA, Kazuyuki

Journal:

Journal of the Ceramic Society of Japan

Année:

2010

Langue:

english

Fichier:

PDF, 410 KB

english, 2010