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Online since: December 2011
Authors: Feng Hong Li, Yan Ming Chen, Liang Li, Xiao Lin Bai, Shu Li
Therefore, we can conclude that it was the changes of structure that decreased the absorption of water as supported by FT-IR spectra.
The increase in tensile properities with the increase of glutaraldehyde content could be the result of the crosslinking structure.
Mehrotra, Joydeep Dutta: Food Chemistry Vol. 114 (2009), P. 1173 [4] N.
The increase in tensile properities with the increase of glutaraldehyde content could be the result of the crosslinking structure.
Mehrotra, Joydeep Dutta: Food Chemistry Vol. 114 (2009), P. 1173 [4] N.
Online since: December 2012
Authors: Ming Jiang, Yan Tang, Qi Wei Yong
Example
The structure and components of liquid pipeline system are shown in figure 1.
The structure of the device is shown in figure 3.
It can be widely used for pipeline or container water hammer protection in petroleum, chemistry, irrigation industry and water supply engineering.
The structure of the device is shown in figure 3.
It can be widely used for pipeline or container water hammer protection in petroleum, chemistry, irrigation industry and water supply engineering.
Online since: February 2014
Authors: Poedji Loekitowati Hariani, Fahma Riyanti
Magnetic CuFe2O4 Nanoparticles for Adsorpstion of Cr(VI)
from Aqueous Solution
Poedji Loekitowati Hariani1,a, Fahma Riyanti2,b
1,2Department of Chemistry, Faculty Matematics and Science
Sriwijaya University, Palembang, Indonesia
apujilukitowati@yahoo.com, bfatechafj@yahoo.com
Keywords: magnetic CuFe2O4, co-precipitation, adsorption, Cr(VI).
The crystalline structure of CuFe2O4 was determined using X-Ray diffraction Shimadzu XD-610 with Cu Kα radiation in the 2θ range 10-800, Transmission Electron Microscope JEOL JEM 1400 and Vibrating Sample Magnetometer Lakeshore 74004.
Fig.1 show XRD patterns of CuFe2O4, indicated that the metal oxides can be indexed on a cubic structure.
The crystalline structure of CuFe2O4 was determined using X-Ray diffraction Shimadzu XD-610 with Cu Kα radiation in the 2θ range 10-800, Transmission Electron Microscope JEOL JEM 1400 and Vibrating Sample Magnetometer Lakeshore 74004.
Fig.1 show XRD patterns of CuFe2O4, indicated that the metal oxides can be indexed on a cubic structure.
Online since: June 2015
Authors: U. Hashim, Tijjani Adam, M. Wesam Al-Mufti, Mijanur Rahman, A.H. Azman, A.K.M. Muaz, M.A. Farehanim
A Farehanim1,g
1 Nano structure lab on chip research group, Institute Nano Electronic Engineering, Universiti Malaysia Perlis.
Also, Heitzinger and Klimeck [8] performed simulation study of a similar nanowire structure functionalized with organic bio-molecules for detection of bio-molecules.
Lieber, Nanowire-based biosensors,Analytical Chemistry (2006)
Also, Heitzinger and Klimeck [8] performed simulation study of a similar nanowire structure functionalized with organic bio-molecules for detection of bio-molecules.
Lieber, Nanowire-based biosensors,Analytical Chemistry (2006)
Online since: July 2013
Authors: Zhong Min Zhao, Hai Long Cui, Long Zhang
Even in the area of 0.2 ~ 0.3mm away from the ceramic substrate, TiB submicron-grain/micro-nano-grain structure appeared, as shown in Fig. 6.
The layered composite was achieved in multi-scale (micron/submicron/micro-nano), multi-level (TiC1-x-TiB-TiB2 + TiB2-Ti-TiC1-x-TiB + TiB2-TiC1-x-TiB-Ti + TiB-TiC1-x-Ti + TiC1-x-Ti + Ti) graded composite structures, which was characterized by size and distribution of TiB2 and TiB phases.
Seow: Materials Chemistry and Physics Vol.75 (2002), p.256-259
The layered composite was achieved in multi-scale (micron/submicron/micro-nano), multi-level (TiC1-x-TiB-TiB2 + TiB2-Ti-TiC1-x-TiB + TiB2-TiC1-x-TiB-Ti + TiB-TiC1-x-Ti + TiC1-x-Ti + Ti) graded composite structures, which was characterized by size and distribution of TiB2 and TiB phases.
Seow: Materials Chemistry and Physics Vol.75 (2002), p.256-259
Online since: July 2013
Authors: Fei Wu, Di Wu, Yong Qiang He, Jian Ping Gao, Jing Yan, Yong Li Zhang
Stable Reduced Graphene Oxide Suspension Modified by PAMAM
Yongqiang He1, 2, a, Fei Wu2, b*, Di Wu3, c, Yongli Zhang3, d, Jianping Gao2, e
and Jing Yan2, f*
1Department of Applied Chemistry, Yuncheng University, Yuncheng 044000, China
2School of Science, Tianjin University, Tianjin 300072, China
3Huanhu Hostital, Tianjin 300060, China
a heyongqiang@126.com, b wufei0125@yahoo.cn, c skyyksea@yahoo.cn, d lili1688cn@163.com, e Jianpingg@eyou.com, f jingyan@tju.edu.cn
All the authors are contrituted equally to this work.
Their molecular weights and structures can be known very accurately.
It may be attributed to the special structure of PAMAM macromolecules.
Their molecular weights and structures can be known very accurately.
It may be attributed to the special structure of PAMAM macromolecules.
Online since: February 2007
Authors: Zhi Qing Chen, Quan Li Li, Nan Huang, Xu Yan Tang
Biomimetic material chemistry, based
primarily on the idea of macromolecules as templates to control inorganic crystal formation, may
be of value to reproduce the nanoscopic and hierarchical structures of natural bone through
biological principles and the processes of self-assembly [2-4].
It suggested the crystallographic c-axis of the HAp crystals aligned preferentially paralled to the long axis direction of a PCS fiber. it wsa analogous to the lowest hierarchical structures of natural bone of c-axis of HAp crystals aligning preferentially paralled to the long axis direction of collagen.
It suggested the crystallographic c-axis of the HAp crystals aligned preferentially paralled to the long axis direction of a PCS fiber. it wsa analogous to the lowest hierarchical structures of natural bone of c-axis of HAp crystals aligning preferentially paralled to the long axis direction of collagen.
Online since: December 2009
Authors: Sukon Phanichphant, Nittaya Tamaekong, Chaikarn Liewhiran, Anurat Wisitsoraat
Ultra-rapid CO Gas Detection by a Gas Sensor Based on Flame-spray-made
Pt/ZnO �anoparticles
Nittaya Tamaekong
1, Chaikarn Liewhiran
2, Anurat Wisitsoraat3 and Sukon Phanichphant1
1
Nanoscience Research Laboratory, Department of Chemistry, Faculty of Science, Chiang Mai University,
Chiang Mai, 50200, Thailand
2Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
3
National Electronics and Computer Technology Center, Pathumthani, 12120, Thailand
Keywords: Flame Spray Pyrolysis, ZnO, Platinum, CO, Sensor.
The physical and sensing properties of semiconductor gas sensors are directly related to their physical structure [3,4].
XRD patterns of flame-spray-made (5/5) 0.2-2 at.% Pt/ZnO as-prepared (P0-P5), Au/Al2O3 substrate (S), and samples P0, P1, P3, and P5 were spin-coated on Au/Al2O3 substrate after annealing and sensing test (S0, S1, S3, and S5) ((●) ZnO; (▲) Al2O3; (■) Au) Fig.1 shows the XRD patterns of samples as-prepared (P0-P5), Au/Al2O3 substrate (S), and sensors after annealing and sensing test (S0, S1, S3 and S5).The samples P0-P5 were highly crystalline, and all peaks can be confirmed to be the hexagonal structure of ZnO (JCPDS No.79-205).
The physical and sensing properties of semiconductor gas sensors are directly related to their physical structure [3,4].
XRD patterns of flame-spray-made (5/5) 0.2-2 at.% Pt/ZnO as-prepared (P0-P5), Au/Al2O3 substrate (S), and samples P0, P1, P3, and P5 were spin-coated on Au/Al2O3 substrate after annealing and sensing test (S0, S1, S3, and S5) ((●) ZnO; (▲) Al2O3; (■) Au) Fig.1 shows the XRD patterns of samples as-prepared (P0-P5), Au/Al2O3 substrate (S), and sensors after annealing and sensing test (S0, S1, S3 and S5).The samples P0-P5 were highly crystalline, and all peaks can be confirmed to be the hexagonal structure of ZnO (JCPDS No.79-205).
Online since: September 2013
Authors: Yin Zhe Jin, Yu Dong Cheng, Ying Shan Jin, Yong Hao Xuan
The problem of the relationship between the structure of a molecule and its physical, chemical and biological properties is one of the most fundamental in chemistry [10].
Chemical constituents of the tocopherols from Rhodiola sachalinensis Tocopherols Retention Time (min) Chemical Structure Molecular Weight Fragment Ion (m/z) Related Area (%) Similarity (%) γ-tocopherol 22.458 C27H46O2 402.66 137, 402 30.16 88 β-tocopherol 23.194 C28H48O2 416.69 151, 416 31.62 90 α-tocopherol 24.085 C29H50O2 430.72 165, 430 38.22 92 Summary Three type of tocopherols such as α, β, γ-tocopherol were identificated from Rhodiola sachalinensis by GC/MS.
Chemical constituents of the tocopherols from Rhodiola sachalinensis Tocopherols Retention Time (min) Chemical Structure Molecular Weight Fragment Ion (m/z) Related Area (%) Similarity (%) γ-tocopherol 22.458 C27H46O2 402.66 137, 402 30.16 88 β-tocopherol 23.194 C28H48O2 416.69 151, 416 31.62 90 α-tocopherol 24.085 C29H50O2 430.72 165, 430 38.22 92 Summary Three type of tocopherols such as α, β, γ-tocopherol were identificated from Rhodiola sachalinensis by GC/MS.