start-ver=1.4
cd-journal=joma
no-vol=127
cd-vols=
no-issue=5
article-no=
start-page=2223
end-page=2230
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230124
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Uniform Formation of a Characteristic Nanocomposite Structure of Biogenous Iron Oxide for High Rate Performance as the Anode of Lithium-Ion Batteries
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Recently, Fe2O3 has been considered as an alternative anode material for lithium-ion batteries (LIBs) owing to its high theoretical capacity (approximately 1000 mA h g-1), low cost, and nontoxicity. However, its rate performance remains poor relative to that of the conventional graphite anode. In this study, Fe2O3-based anodes were prepared through the annealing of biogenous Fe2O3 (L-BIOX) samples produced by an aquatic Fe-oxidizing bacterium. The effect of the annealing temperature on the performance of the synthesized Fe2O3-based material as the anode of an LIB was investigated. Electrochemical measurements revealed that the annealed L-BIOX samples at 300-700 degrees C exhibited higher rate performances than the unannealed material. Particularly, the sample annealed at 700 degrees C exhibited the highest capacity among the synthesized materials and showed a higher performance than the previously reported Fe2O3-based anodes. It exhibited a capacity of 923 mA h g-1 even at a high current density of 2 A g-1. After annealing at 700 degrees C and discharging, the synthesized biogenous material had a uniform nanocomposite structure composed of alpha-Fe2O3 nanoparticles dispersed in an amorphous matrix of Li-Si-P oxide. To form this uniform nanostructure, the solid-state diffusion resistance of the Li+ ions in the active material was reduced, which consequently improved the rate performance of the electrode. Therefore, this study provides substantial insights into the development and improvement of the performance of novel Fe2O3-based nanomaterials as the anode of LIBs.
en-copyright=
kn-copyright=

en-aut-name=TakahashiMasakuni
en-aut-sei=Takahashi
en-aut-mei=Masakuni
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SakumaRyo
en-aut-sei=Sakuma
en-aut-mei=Ryo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HashimotoHideki
en-aut-sei=Hashimoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=15
article-no=
start-page=12795
end-page=12802
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220410
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Eco-Benign Orange-Hued Pigment Derived from Aluminum-Enriched Biogenous Iron Oxide Sheaths
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Inorganic pigments have been widely used due to their low cost of production, strong hiding power, and chemical resistance; nevertheless, they have limited hue width and chromaticity. To eliminate these disadvantages, we herein propose the use of an ingenious biotemplate technique to produce Al-enriched biogenic iron oxide (BIOX) materials. Spectrophotometric color analysis showed that high levels of Al inclusion on heat-treated BIOX samples produced heightened yellowish hues and lightness. The Al-enriched BIOX sheaths exhibited a stable tubular structure and excellent thermal stability of color tones after heating at high temperatures and repetitive heat treatments. Ultrastructural analysis and mechanical destruction experiments revealed that the highly chromatic orange-hue of these pigments are ascribed probably to an ingenious cylindrical nanocomposite architecture composed of putative Fe-included low crystalline Al oxide regions and hematite particles embedded therein. The present work therefore demonstrates that the bioengineered material can serve as an epochal orange-hued inorganic pigment with low toxicity and marked thermostability that should meet large industrial demand.
en-copyright=
kn-copyright=

en-aut-name=TamuraKatsunori
en-aut-sei=Tamura
en-aut-mei=Katsunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=OshimaYuri
en-aut-sei=Oshima
en-aut-mei=Yuri
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=FuseYuta
en-aut-sei=Fuse
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=NagaokaNoriyuki
en-aut-sei=Nagaoka
en-aut-mei=Noriyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KunohTatsuki
en-aut-sei=Kunoh
en-aut-mei=Tatsuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=NakanishiMakoto
en-aut-sei=Nakanishi
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Advanced Research Center for Oral and Craniofacial Sciences, Okayama University
kn-affil=

affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=6
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=7
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=8
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=

affil-num=9
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=5
cd-vols=
no-issue=42
article-no=
start-page=27287
end-page=27294
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20201016
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation and Characterization of Additional Metallic Element-Containing Tubular Iron Oxides of Bacterial Origin
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Biogenic microtubular iron oxides (BIOXs) derived from Leptothrix spp. are known as promising multifunctional materials for industrial applications such as ceramic pigments and catalyst carriers. Here, we report unprecedented BIOX products with additive depositions of various metallic elements prepared by a newly devised "two-step" method using an artificial culture system of Leptothrix cholodnii strain OUMS1; the method comprises a biotic formation of immature organic sheaths and subsequent abiotic deposition of Fe and intended elements on the sheaths. Chemical composition ratios of the additional elements Al, Zr, and Ti in the respective BIOXs were arbitrarily controllable depending on initial concentrations of metallic salts added to reaction solutions. Raman spectroscopy exemplified an existence of Fe-O-Al linkage in the Al-containing BIOX matrices. Time-course analyses revealed the underlying physiological mechanism for the BIOX formation. These results indicate that our advanced method can contribute greatly to creations of innovative bioderived materials with improved functionalities.
en-copyright=
kn-copyright=

en-aut-name=TamuraKatsunori
en-aut-sei=Tamura
en-aut-mei=Katsunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KunohTatsuki
en-aut-sei=Kunoh
en-aut-mei=Tatsuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NakanishiMakoto
en-aut-sei=Nakanishi
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KusanoYoshihiro
en-aut-sei=Kusano
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Department of Applied Chemistry and Biotechnology, Okayama University of Science
kn-affil=

affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=3
article-no=
start-page=403
end-page=410
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=201105
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Characterization of an OmpA-like outer membrane protein of the acidophilic iron-oxidizing bacterium, Acidithiobacillus ferrooxidans
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An OmpA family protein (FopA) previously reported as one of the major outer membrane proteins of an acidophilic iron-oxidizing bacterium Acidithiobacillus ferrooxidans was characterized with emphasis on the modification by heat and the interaction with peptidoglycan. A 30-kDa band corresponding to the FopA protein was detected in outer membrane proteins extracted at 75A degrees C or heated to 100A degrees C for 10 min prior to sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). However, the band was not detected in outer membrane proteins extracted at a parts per thousand currency sign40A degrees C and without boiling prior to electrophoresis. By Western blot analysis using the polyclonal antibody against the recombinant FopA, FopA was detected as bands with apparent molecular masses of 30 and 90 kDa, suggesting that FopA existed as an oligomeric form in the outer membrane of A. ferrooxidans. Although the fopA gene with a sequence encoding the signal peptide was successfully expressed in the outer membrane of Escherichia coli, the recombinant FopA existed as a monomer in the outer membrane of E. coli. FopA was detected in peptidoglycan-associated proteins from A. ferrooxidans. The recombinant FopA also showed the peptidoglycan-binding activity.
en-copyright=
kn-copyright=

en-aut-name=ManchurMohammed Abul
en-aut-sei=Manchur
en-aut-mei=Mohammed Abul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KikumotoMei
en-aut-sei=Kikumoto
en-aut-mei=Mei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KanaoTadayoshi
en-aut-sei=Kanao
en-aut-mei=Tadayoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KamimuraKazuo
en-aut-sei=Kamimura
en-aut-mei=Kazuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

affil-num=3
en-affil=
kn-affil=Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

affil-num=4
en-affil=
kn-affil=Division of Chemical and Biological Technology, Graduate School of Natural Science and Technology, Okayama University

affil-num=5
en-affil=
kn-affil=Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University
en-keyword=Acidithiobacillus ferrooxidans
kn-keyword=Acidithiobacillus ferrooxidans
en-keyword=Iron-oxidizing bacterium
kn-keyword=Iron-oxidizing bacterium
en-keyword=Acidophile
kn-keyword=Acidophile
en-keyword=Outer membrane protein
kn-keyword=Outer membrane protein
en-keyword=OmpA
kn-keyword=OmpA
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of ZnO Films by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Zinc oxide films were prepared on silica glass substrates by the use of an r.f. activated reactive evaporation (ARE) method, and were examined by X-ray diffraction (XRD) and scanning electron micrograph (SEM). XRD measurements indicate that the films were c-axis oriented and that an r.f. plasma of Zn and O was necessary for the ZnO film deposition. Substrate temperature, oxygen gas pressure, evaporation rate, r.f. power and inlet position of oxygen gas effect the c-axis orientation, the growth rate and the microstructure of the films. Optimum conditions for a dense film with a fine texture of the surface and having good crystallinity were as follows: the substrate temperature;400Ž, the evaporation rate;5.0(A)/s, the oxygen pressure;2.0x10(-4) Torr, the r.f. power;150 to 200W, and the oxygen gas inlet near the substrate. For the film prepared under the optimum conditions, the standard deviation@ƒะ@of the rocking curve for the (002) diffraction was 1.9deg, smaller than that of the film prepared by using an r.f. sputtering method.
en-copyright=
kn-copyright=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=ŽO‰Y‰ร–็
kn-aut-sei=ŽO‰Y
kn-aut-mei=‰ร–็
aut-affil-num=1
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=‚“c
kn-aut-sei=‚“c
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=”๖โ–พ‹`
kn-aut-sei=”๖โ
kn-aut-mei=–พ‹`
aut-affil-num=3
ORCID=

en-aut-name=KawamuraToshio
en-aut-sei=Kawamura
en-aut-mei=Toshio
kn-aut-name=‰อ‘บ—˜•v
kn-aut-sei=‰อ‘บ
kn-aut-mei=—˜•v
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=53
end-page=61
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Diffusion of Sodium Ions into Tin Oxide Thin Films from Glass Substrates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Electrical resistance and X-ray photoelectron depth profile analysis are studied for antimony doped tin oxide films developed on silica, alkali-free and sodalime slide glass substrates. The sodium ions diffused from the substrates to the films prevented the crystal growth of rutile type tin oxide in the film, resulting in the high electrical resistance. A diffusion layer has been detected for each film with diffuse profiles of multi valent cations (Sn, Si or Ca) at the interface of the tin oxide film and substrate. A greater amount of sodium atoms have been detected in the film developed on the soda-lime glass while almost no sodium atoms have been found in those on the other substrates. This can be explained by the diffusion of the sodium ions in the substrate due to a drastic hydronium-sodium exchange mechanism under highly acidic conditions during the dipping and drying processes.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=”๖โ–พ‹`
kn-aut-sei=”๖โ
kn-aut-mei=–พ‹`
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakaoSeiji
kn-aut-sei=Takao
kn-aut-mei=Seiji
aut-affil-num=2
ORCID=

en-aut-name=OdaKiichi
en-aut-sei=Oda
en-aut-mei=Kiichi
kn-aut-name=ฌ“cŠ์ˆ๊
kn-aut-sei=ฌ“c
kn-aut-mei=Š์ˆ๊
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=‚“c
kn-aut-sei=‚“c
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=ŽO‰Y‰ร–็
kn-aut-sei=ŽO‰Y
kn-aut-mei=‰ร–็
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Japan Exran Co. Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=67
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of Mullite Dispersed Silica Ceramics through Sol-Gel Processing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Mullite-dispersed silica ceramics were prepared through sol-gel processing by the use of tetraethoxy silane, aluminium nitrate and aluminium isopropoxide as the Si and Al sources where HCl and HN0(3) were the catalyst. Effect of the starting materials, solvents and catalysts was examined on the gelation time or temperature of mullite precipitation. Apparent activation energy of gelation ranged from 80 to 95kJ/mol. The presence of AI in the sols elongated the gelling time suggesting the formation of chelate bonds between AI and Si-OR or Si-OH bonds.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawabataKouji
kn-aut-sei=Kawabata
kn-aut-mei=Kouji
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=69
end-page=75
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation and Characterization of Ti(2)O(3) Films Deposited on Sapphire Substrate by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=(001)-oriented Ti(2)O(3) films were epitaxially grown on a(001)-face of sapphire single-crystalline substrate by an activated reactive evaporation method. The formation ranges of stoichiometric and nonstoichiometric Ti(2)O(3) films were determined as a function of the substrate temperature (Ts), the oxygen pressure (Po(2)) and the deposition rate. Stoichiometric Ti(2)O(3) films were grown at Ts†673K under Po(2)†1.0~10(-4)Torr, which showed the metal-insulator transition with a sharp change in electrical resistivity from 3.5~10(-2) to 2.6~10(-3)ƒถcm at 361K. Nonstoichiometric films prepared under less oxidized conditions did not exhibit the transition. The nonstoichiometry of the Ti(2)O(3)films was discussed in terms of excess Ti ions.
en-copyright=
kn-copyright=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SakataNaoki
kn-aut-sei=Sakata
kn-aut-mei=Naoki
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=6
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=41
cd-vols=
no-issue=1
article-no=
start-page=93
end-page=98
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2007
dt-pub=200701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structure, Morphology and Color Tone Properties of theNeodymium Substituted Hematite
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Co-precipitation method has been employed to fabricate neodymium substituted hematite with different compositions from the aqueous solution of their corresponding
metal salts. Thermal analysis and X-ray diffraction studies revealed the coexistence of Fe(2)O(3) and Nd(2)O(3) phases up to 1050Ž and formation of solid solution phase among
them at 1100Ž and above temperatures, which was evidenced by shifting of the XRD peaks. Unit cell parameters and the cell volumes of the samples were found to increase by adding Nd(3+) ions in the reaction process. FESEM studies showed the suppression of particle growth due to the presence of Nd(3+) ions. Spectroscopic measurement evidenced that neodymium substituted hematite exhibited brighter yellowish red color tone than that of pure ƒฟ-Fe(2)O(3).
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Tarequl IslamBhuiyan
kn-aut-sei=Tarequl Islam
kn-aut-mei=Bhuiyan
aut-affil-num=1
ORCID=

en-aut-name=NakanishiMakoto
en-aut-sei=Nakanishi
en-aut-mei=Makoto
kn-aut-name=’†ผ^
kn-aut-sei=’†ผ
kn-aut-mei=^
aut-affil-num=2
ORCID=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=“กˆไ’Bถ
kn-aut-sei=“กˆไ
kn-aut-mei=’Bถ
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=‚“c
kn-aut-sei=‚“c
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. of Applied Chemistry Okayama University

affil-num=2
en-affil=
kn-affil=Dept. of Applied Chemistry Okayama University

affil-num=3
en-affil=
kn-affil=Dept. of Applied Chemistry Okayama University

affil-num=4
en-affil=
kn-affil=Dept. of Applied Chemistry Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=121
end-page=129
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970110
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Preparation and Properties of ZnO Transparent Conductive Thin Films by Activated Reactive Evaporation Method
kn-title=Šˆซ‰ป”ฝ‰ž๖’…–@‚ษ‚ๆ‚้ZnOŒn“ง–พ“ฑ“d–Œ‚ฬ์ป‚ฦ•จซ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Zinc oxide films were prepared on silica glass substrates by the use of an r.f. activated reactive evaporation (ARE) method, and were examined by X-ray diffraction (XRD) and scanning electron microscope (SEM). The electrical conductivity of the films and the doping effect of Al ions were also investigated. XRD measurements indicate that the films were c-axis oriented and that an r.f. plasma of Zn and O was necessary for the ZnO film deposition. Substrate temperature, oxygen gas pressure, evaporation rate, r.f. power and Al doping amount affect the c-axis orientation, the growth rate, the microstructure of the films and electrical conductivity. Optimum conditions with a fine texture of the surface and having good ctystallinity as well as good conductivity (เ10(-4)ƒถEcm) were as follows : the substrate temperature; 200Ž, the total evaporation rate; 1.0๐/s, the oxygen pressure; 2.0~10(-4) Torr, the r.f. power; 250W and the Al evaporation rare ratio; 2`6%. The films with 1.0~10(-3)ƒถEcm were prepared at 50Ž for the substrate temperature.
en-copyright=
kn-copyright=

en-aut-name=FujiwaraTakashi
en-aut-sei=Fujiwara
en-aut-mei=Takashi
kn-aut-name=“กŒด‹M
kn-aut-sei=“กŒด
kn-aut-mei=‹M
aut-affil-num=1
ORCID=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=“กˆไ’Bถ
kn-aut-sei=“กˆไ
kn-aut-mei=’Bถ
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=“๏”g“ฟ˜Y
kn-aut-sei=“๏”g
kn-aut-mei=“ฟ˜Y
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=‚“c
kn-aut-sei=‚“c
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=ŽO‰Y‰ร–็
kn-aut-sei=ŽO‰Y
kn-aut-mei=‰ร–็
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=(’็)ผ‰บ“dŠํŽY‹ฦŠ”Žฎ‰๏Žะ

affil-num=2
en-affil=
kn-affil=‰ชŽR‘ๅŠw

affil-num=3
en-affil=
kn-affil=‰ชŽR‘ๅŠw

affil-num=4
en-affil=
kn-affil=‰ชŽR‘ๅŠw

affil-num=5
en-affil=
kn-affil=‰ชŽR‘ๅŠw
en-keyword=ZnO film
kn-keyword=ZnO film
en-keyword=Al doped ZnO
kn-keyword=Al doped ZnO
en-keyword=transparent conductive film
kn-keyword=transparent conductive film
en-keyword=r.f. activated reactive evaporation method
kn-keyword=r.f. activated reactive evaporation method
END