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Online since: August 2023
Authors: Sang Woo Lim, Tae Gun Park, Jong Won Han
A Si3N4/SiO2 multi-stack structure was also prepared by PECVD.
Improving Transportation Ability of Etchant into 3D NAND Trench Structure.
As shown in Fig. 3(b), when the 3D NAND Si3N4/SiO2 repeated stacking trench structure was etched in 30 wt% H3PO4, horizontal Si3N4 etching was observed at the bottom of the structure.
Lim, Understanding of Si3N4-H3PO4 reaction chemistry for the control of Si3N4 dissolution kinetics, J.
Scherer, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing, Academic Press, Boston, 1990
Improving Transportation Ability of Etchant into 3D NAND Trench Structure.
As shown in Fig. 3(b), when the 3D NAND Si3N4/SiO2 repeated stacking trench structure was etched in 30 wt% H3PO4, horizontal Si3N4 etching was observed at the bottom of the structure.
Lim, Understanding of Si3N4-H3PO4 reaction chemistry for the control of Si3N4 dissolution kinetics, J.
Scherer, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing, Academic Press, Boston, 1990
Online since: July 2010
Authors: Mineo Sato, Kenji Toda, Kazuyoshi Uematsu, Tadashi Ishigaki, Miki Nishiya
Synthesis and characterization of low-dimensional structure
photocatalyst BaGeGa6O12
Miki Nishiya 1,a, Kazuyoshi Uematsu 2, a, Tadashi Ishigaki 3, a, Kenji Toda 1,
a,Mineo Sato 2, a
1 Graduate School of Science and Technology, Niigata University,
8050 Ikarashi 2-nocho, Niigata 950-2181, JAPAN
2 Department of Chemistry and Chemical Engineering, Niigata University,
8050 Ikarashi 2-nocho, Niigata 950-2181, JAPAN
3 Center for Transdisciplinary Research, Niigata University,
8050 Ikarashi 2-nocho, Niigata 950-2181, JAPAN
a
ktoda@eng.niigata-u.ac.jp
Keywords: photocatalyst, water splitting, d
10
electron configuration, BaGeGa6O12, one-dimensional
structure
Abstract.
Low-dimensional structure compounds as layered perovskite shows high photocatalytic activity in water splitting.
In this study, we have focused on one-dimensional structure BaGeGa6O12 [11].
The crystal structure of BaGeGa6O12 is combined GeO4 or GaO4 tetrahedron by vertex contact (Figure 1).
Therefore, we investigated synthesis and characterization of one-dimensional structure BaGeGa6O12.
Low-dimensional structure compounds as layered perovskite shows high photocatalytic activity in water splitting.
In this study, we have focused on one-dimensional structure BaGeGa6O12 [11].
The crystal structure of BaGeGa6O12 is combined GeO4 or GaO4 tetrahedron by vertex contact (Figure 1).
Therefore, we investigated synthesis and characterization of one-dimensional structure BaGeGa6O12.
Online since: June 2017
Authors: Kai Hou, Yun Yin Lin, Benjamin S. Hsiao, Mei Fang Zhu
Introduction
Fibrous biomaterials have been widely used to biomimetic fibrous tissue structure such as nerves,[1] blood vessels,[2] muscles.[3] In tissues, this fibrous structures are always with multilevel structure to realize body functions.
Axon is a core-sheath structure, of which nerve cell transmits signals as core.
However, electrospinning merely produces nonwoven fiber mats which is hardly for multi-structure construction to bio-mimic native tissue with hierarchical structure.
Wang, Journal of Materials Chemistry, 21 (2011) 7033-7051
Jiang, Journal of Materials Chemistry A, 1 (2013) 7290-7305
Axon is a core-sheath structure, of which nerve cell transmits signals as core.
However, electrospinning merely produces nonwoven fiber mats which is hardly for multi-structure construction to bio-mimic native tissue with hierarchical structure.
Wang, Journal of Materials Chemistry, 21 (2011) 7033-7051
Jiang, Journal of Materials Chemistry A, 1 (2013) 7290-7305
Online since: August 2017
Authors: Warot Prasanseang, Kittisak Choojun, Chaval Sriwong
Moreover, this method can control the structure and size of AgNPs.
The SPR peak is influenced by the size, shape, surrounding environment and structure of AgNPs [11].
In addition, the crystal structure of obtained AgNPs can be identified by SAED shown in Fig. 3(f).
These results imply that the structure of natural rubber was not changed or decomposed over loading of AgNPs into rubber matrix.
Ranga,, Influence of silver on the structure, dielectric and antibacterial effect of silver doped bioglass-ceramic nanoparticles, Ceram.
The SPR peak is influenced by the size, shape, surrounding environment and structure of AgNPs [11].
In addition, the crystal structure of obtained AgNPs can be identified by SAED shown in Fig. 3(f).
These results imply that the structure of natural rubber was not changed or decomposed over loading of AgNPs into rubber matrix.
Ranga,, Influence of silver on the structure, dielectric and antibacterial effect of silver doped bioglass-ceramic nanoparticles, Ceram.
Online since: October 2023
Authors: M. Prashantkumar, M. Madesh Kumar, Devindrappa Patil, Y.B. Shankar Rao, N. Sivaganga Kumari, K. Vinay, Devika Devika, M. Revanasiddappa, Y.T. Ravikiran
School of applied Science, REVA University, Bangalore 560 064
2Department of Physics, Anil Neerukonda Institute of Technology and Sciences, Sangivalasa, Visakhapatnam, Andhra Pradesh, India
*3Department of Chemistry, PES University South Campus, Bangalore, Karnataka, India
4Department of Physics, Government College (Autonomous), Kalaburagi, Karnataka, India
5Department of Chemistry, Channabasaveshwara Institute of Technology, Gubbi, Karnataka, India
6Department of PG Studies and Research in Physics, Govt.
Pure PANI SEM micrograph shows a highly agglomerated structure of PANI particles with an average size of about 2m.
Orehovec, Journal of Molecular Structure, vol. 834–836, 454–460, (2007) [7] A.
Popovi, Journal of Molecular Structure, vol. 480-481, 633–636, (1999) [8] M.
Musi, Journal of Molecular Structure, vol. 924–926, pp. 235–242, (2009) [9] Z. wang, Y.
Pure PANI SEM micrograph shows a highly agglomerated structure of PANI particles with an average size of about 2m.
Orehovec, Journal of Molecular Structure, vol. 834–836, 454–460, (2007) [7] A.
Popovi, Journal of Molecular Structure, vol. 480-481, 633–636, (1999) [8] M.
Musi, Journal of Molecular Structure, vol. 924–926, pp. 235–242, (2009) [9] Z. wang, Y.
Online since: April 2023
Authors: Munkhtsetseg Sambuu, Anna Oleshkevich, Shilagardi Goolimensee, Nyamdulam Renten, Begzsuren Tumendemberel, Rene Tschaggelar, Munkhjargal Sharav, Otgonchimeg Tuvdendor
The dopant was chosen as an indicator
for changes in the coal structure to minimize coal smoke during the burning.
Industrial and Engineering Chemistry. 10 (1938) 374-378
Berkowitz The chemistry of coal.
Catherine Structure and physical properties of plasma-grown amorphous hydrogenated carbon films.
M.: Chemistry. 1970, p. 164
Industrial and Engineering Chemistry. 10 (1938) 374-378
Berkowitz The chemistry of coal.
Catherine Structure and physical properties of plasma-grown amorphous hydrogenated carbon films.
M.: Chemistry. 1970, p. 164
Online since: September 2013
Authors: Li Li Feng, Jing Jing Tong, Chong Yun Wang
China
2Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
afenglili@bucea.edu.cn, b576454168@qq.com, ccywang2005@126.com
Keywords: Silica hollow nanospheres; Polyethylene glycol; Shape-stabilized phase change material; Thermal properties
Abstract.
It is concluded that the phase change properties of the composite PCM are influenced by the adsorption confinement of the PEG segments from the porous structure of the silica hollow nanospheres.
Silica hollow microspheres and nanospheres are widely studied due to their high specific surface area, low density, hollow structure, non-toxicity and excellent thermal stability [5].
Finally, the as-synthesized PS/SiO2 nanospheres with core-shell structure were calcined for 1 h at 550 oC.
It is concluded that the phase change properties of the composite PCM are influenced by the adsorption confinement of the PEG segments from the porous structure of the silica hollow nanospheres.
Silica hollow microspheres and nanospheres are widely studied due to their high specific surface area, low density, hollow structure, non-toxicity and excellent thermal stability [5].
Finally, the as-synthesized PS/SiO2 nanospheres with core-shell structure were calcined for 1 h at 550 oC.
Online since: May 2014
Authors: Jiraporn Kittikul, Sukon Phanichphant, Pusit Pookmanee, Songpon Ngamta, Ratchadaporn Puntharod, Supaporn Sangsrichan, Wiyong Kangwansupamonkon
It has been known that the crystal structure of TiO2 changes with temperature and it exists in three structural polymorphs viz., anatase, brookite, and rutile [7].
There has been much report on the synthesis of TiO2 for the control of crystal structure and morphology.
Confirmation structure of TiO2 powder was obtained by comparison with the Joint Committee on Powder Diffraction Standard (JCPDS) card File No.21–1272 [19] and 21–1276 [20].
Multi–phase of anatase and rutile structure of TiO2 powder was obtained without calcinations steps and comparison with the Joint Committee on Powder Diffraction Standards (JCPDS) Card File No. 21–1272 [19] and 21–1276 [20].
XRD pattern showed the presence of multi–phase of anatase and rutile structure of TiO2 powder.
There has been much report on the synthesis of TiO2 for the control of crystal structure and morphology.
Confirmation structure of TiO2 powder was obtained by comparison with the Joint Committee on Powder Diffraction Standard (JCPDS) card File No.21–1272 [19] and 21–1276 [20].
Multi–phase of anatase and rutile structure of TiO2 powder was obtained without calcinations steps and comparison with the Joint Committee on Powder Diffraction Standards (JCPDS) Card File No. 21–1272 [19] and 21–1276 [20].
XRD pattern showed the presence of multi–phase of anatase and rutile structure of TiO2 powder.
Online since: January 2020
Authors: V.G. Gusev, A.V. Sobolkov, A.V. Aborkin
Khrenov, Formation of Heterogeneous Powder Coatings with a Two-Level Micro- and Nanocomposite Structure under Gas-Dynamic Spraying Conditions, Doklady Physics 63 (2018) 50–54
Arkhipov, Structure and efficiency of gas-dynamic deposition of hybrid coatings based on a nanocrystalline aluminum matrix, Metallurgist 62 (2018) 809-814
Pabi, A mathematical analysis of milling mechanics in a planetary ball mill, Materials Chemistry and Physics 68 (2001) 85–94
Korotkov, Model Of energy characteristics of the planetary mill, Chemistry and materials science 31 (2015) 380–384
Pabi, A mathematical analysis of milling mechanics in a planetary ball mill, Materials Chemistry and Physics 68 (2001) 85–94.
Arkhipov, Structure and efficiency of gas-dynamic deposition of hybrid coatings based on a nanocrystalline aluminum matrix, Metallurgist 62 (2018) 809-814
Pabi, A mathematical analysis of milling mechanics in a planetary ball mill, Materials Chemistry and Physics 68 (2001) 85–94
Korotkov, Model Of energy characteristics of the planetary mill, Chemistry and materials science 31 (2015) 380–384
Pabi, A mathematical analysis of milling mechanics in a planetary ball mill, Materials Chemistry and Physics 68 (2001) 85–94.