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Online since: February 2011
Authors: Chun Xiang Lin, Ming Hua Liu, Huai Yu Zhan
., monomer concentration, initiator concentration, reaction temperature and reaction time were optimized by the orthogonal and signal-factor experiments and the structure of the adsorbent was characterized by FTIR and SEM.
Moreover, by an appropriate selection of the chemical structure of the monomer, grafted cellulose shows new properties, such as hydrophilic or hydrophobic character, thermal stability [7] and resistance to chemical and biological agents [8].
H.Zeronian: Cellulose Chemistry and Its Application.
Moreover, by an appropriate selection of the chemical structure of the monomer, grafted cellulose shows new properties, such as hydrophilic or hydrophobic character, thermal stability [7] and resistance to chemical and biological agents [8].
H.Zeronian: Cellulose Chemistry and Its Application.
Online since: July 2012
Authors: Jian Li Wang, Louis M Leung
LEUNG b
Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
aemail: 08467307@hkbu.edu.hk, bemail: s20974@hkbu.edu.hk.
The chemical structure and properties of DMPA and P(DMPA) were characterized by NMR, GPC, TGA, DSC, UV-Vis, PL, CV and quantum yield measurements.
Vinyl pyrene and its derivatives had been widely used in the synthesis of emissive and charge transport materials for OLED applications because of their large π conjugated structures and bulky aromatic groups [12-17].
The chemical structure and properties of DMPA and P(DMPA) were characterized by NMR, GPC, TGA, DSC, UV-Vis, PL, CV and quantum yield measurements.
Vinyl pyrene and its derivatives had been widely used in the synthesis of emissive and charge transport materials for OLED applications because of their large π conjugated structures and bulky aromatic groups [12-17].
Online since: November 2007
Authors: Aliassghar Tofighi, K. Schaffer, R. Palazzolo
The final product was a low crystalline calcium deficient carbonated apatite similar to the
composition and structure of bone mineral.
DCPD was also prepared using wet chemistry (with calcium and phosphate solution, respectively, 0.3 M and 0.15 M).
The chemical composition of the final product was a low crystalline (about 40% comparing with HA) carbonated apatite similar to the structure and composition of bone mineral, with a Ca/P atomic ratio of 1.45.
DCPD was also prepared using wet chemistry (with calcium and phosphate solution, respectively, 0.3 M and 0.15 M).
The chemical composition of the final product was a low crystalline (about 40% comparing with HA) carbonated apatite similar to the structure and composition of bone mineral, with a Ca/P atomic ratio of 1.45.
Online since: July 2013
Authors: Zhong Rong Song, Jia Hong He, Qiang Xu
The structure and morphologies of the Platinum nanoparticles were characterized by SEM and TEM.
Results and discussion Characteristics of PtNP-L-alanine/GCE SEM and TEM were used to investigate the surface structure and morphology of the modified electrode.
Journal of Electroanalytical Chemistry 633 (2009) 85
Results and discussion Characteristics of PtNP-L-alanine/GCE SEM and TEM were used to investigate the surface structure and morphology of the modified electrode.
Journal of Electroanalytical Chemistry 633 (2009) 85
Online since: October 2016
Authors: Ramakrishnan Vasudaa, S. Syath Abuthakeer, Afsana Nizamudeen
Today’s technological innovations call for continual improvement in the field of material science to substitute the heavy structures with lightweight materials without compromising the strength.
NFRC extend its applications for special engineering materials such as automotive, aerospace industry and construction structures [3].
The Chemistry of unsaturated polyesters and allyl resins.
NFRC extend its applications for special engineering materials such as automotive, aerospace industry and construction structures [3].
The Chemistry of unsaturated polyesters and allyl resins.
Online since: January 2015
Authors: Wan Mohd Khairul, Adibah Izzati Daud, Hafiza Mohamed Zuki, K. Kubulat
Acetylide and thiourea moieties individually provides a wide range of electronic properties as they possess electronic delocalization in extended rigid π orbital system in their designated structures.
Aydın, N-(4-Nitrobenzoyl)-N-(1, 5-dimethyl-3-oxo-2-phenyl-1 H-3 (2H)-pyrazolyl)-thiourea hydrate: Synthesis, spectroscopic characterization, X-ray structure and DFT studies, Spectrochim Acta A. 89 (2012) 30-38
Tarr, Inorganic Chemistry.
Aydın, N-(4-Nitrobenzoyl)-N-(1, 5-dimethyl-3-oxo-2-phenyl-1 H-3 (2H)-pyrazolyl)-thiourea hydrate: Synthesis, spectroscopic characterization, X-ray structure and DFT studies, Spectrochim Acta A. 89 (2012) 30-38
Tarr, Inorganic Chemistry.
Online since: September 2011
Authors: Zi Hao Wang, Xue Feng Wang, Han Jiang, Jing Ding, Jian Dong Wang, Wei Bin Shi
Synthesis and special properties of NIR QDs
1.1 Synthesis of near-infrared (NIR) quantum dots (QDs)
With multitudinous research reports in the past decades, synthesis courses for NIR QDs in chemistry laboratory have been developed.
The process in the synthesis of QDs includes a combination of solution chemistry and crystal growth.
Moreover, the embellishments of NIR QDs are dependent on their surface molecules rather than the core structure.
Without the complex technique that is the key to organometallic approaches, researchers from chemistry, biology, clinical science, material science, and nanotechnology can modify the surface of the QDs with minimal training.
The process in the synthesis of QDs includes a combination of solution chemistry and crystal growth.
Moreover, the embellishments of NIR QDs are dependent on their surface molecules rather than the core structure.
Without the complex technique that is the key to organometallic approaches, researchers from chemistry, biology, clinical science, material science, and nanotechnology can modify the surface of the QDs with minimal training.
Online since: November 2013
Authors: Hui Juan Bao, Yan Jiang, Jia Qi Liu, Hai Yue Zhang
Agar culture medium, ferrous sulfate, hydrochloric acid, hydrogen peroxide, pyrogallol, tris 2, 2-diphenyl-1-picrylhydrazyl (DPPH), hydrochloric acid, ethanol and pyrogallic acid were purchased from Beijing Chemistry Factory.
The presence of water vapour close to the hydrophilic polymer effected the structure of the side of chitosan and resulted in better permeation of acid gases such CO2 [15].
Food Chemistry, 107(2), 845-852
Journal of Agriculture and Food Chemistry, 57(16), 7499-7504.
The presence of water vapour close to the hydrophilic polymer effected the structure of the side of chitosan and resulted in better permeation of acid gases such CO2 [15].
Food Chemistry, 107(2), 845-852
Journal of Agriculture and Food Chemistry, 57(16), 7499-7504.
Online since: September 2020
Authors: Rui Hua Wang, Jie Guang Song, Shi Bin Li, Ming Han Xu, Lin Chen, Ai Xia Chen, Chao Yang, Fang Wang
Interface Optimization of Al2O3-Fe Composite Materials Prepared via Vacuum Sintering Method
Ruihua Wang1, Aixia Chen1, Chao Yang1, Fang Wang1, Minghan Xu1,
Shibin Li1, Jieguang Song2a, Lin Chen3b
1School of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, China
2Research Institute of Sponge City, Pingxiang University, Pingxiang 337055 China
3Key Laboratory for Industrial Ceramics of Jiangxi Province, School of Materials and Chemistry Engineering, Pingxiang University, Pingxiang 337055 China
asjg825@163.com, brymw27@163.com
Keywords: Composite materials; interface optimization; Fe; Al2O3; vacuum sintering.
In this paper, the effect of sintering temperature on the interfacial structure of the composite was investigated and three different formulation groups were used to compare the respective properties.
It can be seen from Fig.4 that (d) the sample is sintered at a temperature of 1450 ℃, and the structure is the most dense.
In this paper, the effect of sintering temperature on the interfacial structure of the composite was investigated and three different formulation groups were used to compare the respective properties.
It can be seen from Fig.4 that (d) the sample is sintered at a temperature of 1450 ℃, and the structure is the most dense.
Online since: September 2013
Authors: Hong Juan Wang, Hao Yu, Feng Peng, Dong Zhou
Performance of fast thermally reduced graphene oxide for supercapacitor
Hongjuan Wang1,a, Dong Zhou1,b, Feng Peng1,c, Hao Yu1,d
1The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 516040, China
acehjwang@scut.edu.cn, b441042283@qq.com, ccefpeng@scut.edu.cn,dyuhao@scut.edu.cn
Keywords: Supercapacitor, electrochemical measurements, reduced graphene oxide, specific capacitance
Abstract.
Structure and the electrochemical capacitive performance were characterized and measured.
The structure of the samples was determined by a powder X-ray diffraction system (XRD, D/max-IIIA spectrometer) equipped with Cu Kɑ radiation.
Structure and the electrochemical capacitive performance were characterized and measured.
The structure of the samples was determined by a powder X-ray diffraction system (XRD, D/max-IIIA spectrometer) equipped with Cu Kɑ radiation.