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Online since: September 2019
Authors: Faouzi Hanini, Abderrahmane Bouabellou, Adel Taabouche, Yassine Bouachiba, Fouad Kermiche, Mohamed Mahtali, Zahia Daas
The electrical properties of the layers were determined using the I(V) characteristics by the two probes technique in a coplanar structure with two evaporated gold electrodes.
In this way, the TiO2 particles most likely formed in smaller size indicating the nanocrystalline structure of manufactured films.
Another possible reason may be the presence of point defects like oxygen vacancies in the film, the energetic levels of which were supposed to be localized between conduction and valence bands leading then to the creation of a localised field and hence changing the electronic structure of the TiO2 film [23].
Park, TiO2 photocatalyst for water treatment applications, Journal of Industrial and Engineering Chemistry 19 (2013) 1761–1769
Nie, Semiconductor Nanocrystals: Structure, Properties, and Band Gap Engineering, Acc Chem Res. 43 (2010) 190–200
Online since: March 2025
Authors: Ke Sun, Chuan Jian Wu, Xiao Na Jiang, Zhong Yu, Zhong Wen Lan, Lei Zhong, Pei Yi Ren, Qi Fan Li
The crystal structure of the sample was characterized using X-ray diffraction (Shimadzu Maxima-X XRD-7000).
Influences of La3+ substitution on the structure and magnetic properties of M-type strontium ferrites, Journal of Magnetism and Magnetic Materials. 238(2002) 207-214
Influence of La-Co substitution on the structure and magnetic properties of low-temperature sintered M-type barium ferrites, Journal of Rare Earths. 31(2013) 983-987
Comparison of structure and electrical properties of vacuum-sintered and conventional-sintered Ca1-xYxCeNbWO8 NTC ceramics, Journal of Alloys and Compounds. 698(2017) 1-6
Sintering of Mo2FeB2 layered cermet containing SiC fibers, Materials Chemistry and Physics. 70(2001) 336-339
Online since: February 2013
Authors: Wei Ming Liao, Zhan Rou Zhong, Xiao Yun Guo, Xu Geng, Shu Kun Xie, Cheng Lin Zheng
Research on Impregnated Ruthenium Catalyst of Simulation Printing and Dyeing Wastewater Treatment with CWAO Method LIAO Wei-ming, ZHONG Zhan-rou, GUO Xiao-yun, GENG Xu, XIE Shu-kun and ZHENG Cheng-lin Departmenr of Chemistry, Hanshan Normal University, Chaozhou Guangdong, 521041, China Keywords: methyl orange; simulation printing and dyeing wastewater; catalytic wet air oxidation; impregnation; Ru catalyst; activity; stability Abstract.
The structures of catalyst were analyzed through the result of infrared.
The morphology of catalyst was analyzed by Scanning electron microscope (SEM) The structure of catalyst was analyzed by infrared spectrum analysis of KBr tablet method.
Ru which catalyst’s content was 1.0wt%, sample ravine reduced and the surface was relatively flat with thin sheet, which made composite catalyst structure be more loose, was good for catalyst adsorbing organic matter and improved the catalyst activity.
Analysis of Catalyst Structure.
Online since: August 2014
Authors: Li Ma, Zheng Cao, Jian Qiang Deng
Pinch analysis is advanced in obtaining utilities consumption instead of exactly matching a network structure; therefore the single-use of pinch technology for network integration has limitations.
Although optimized network structure can be obtained with mathematical programming method, the complexity of model has long been a weakness that is liable to cause convergence failure.
By solving the mathematical model, we obtained the optimal network structure.
Comparison of different purification schemes Items Indexes No purification PSA MEM Cost Total annual cost[104¥·a-1] 2287.8 730.44 597.26 Annual fresh hydrogen cost[104¥·a-1] 1991.25 0 0 Annual pressure cost[104¥·a-1] 296.55 316.12 348.87 Purification cost[104¥·a-1] 414.32 248.39 Sources with hydrogen surplus Partly surplus SR4 SR4 SR4 Totally surplus SR6 SR6 SR5, SR6 Hydrogen surplus Total flow rate of streams [mol·s-1] 140.35 105.78 105.78 Total flow rate of pure hydrogen [mol·s-1] 114.86 79.92 79.45 Network structure Connection number 14 15 13 Summary This paper presents a detailed research on the optimization of refinery hydrogen networks including a purifier.
Industrial & engineering chemistry research, 2006, 45(19), 6512-6517
Online since: August 2014
Authors: Alena Očkajová, Ján Stebila, L'uboš Krišták, Rastislav Igaz, Dušan Brozman, Roman Réh, Petra Šiagiová
b) With regard to production of wood composites as timber formwork, raw material is undergoing various technological processes at the end of which is a billboard material mainly with a layer structure.
Attention is placed on assessing a technological process of moulding of three-layer structures while the subject matter of examination was to research into energy requirements of gluing of a finished material.
The main aim of the article was to create and assess alternative composite structures for the application in manufacturing of timber formwork.
The LCA methodology has been applied to timber workwood of three different structures.
[4] SETAC – Society of Environmental Toxicology and Chemistry.
Online since: April 2019
Authors: Kaspars Traskovskis, Valdis Kokars, Raitis Grzibovskis, Armands Ruduss
Synthesis and Photoelectrical Properties of 3(Diphenylamino)Carbazolyl - Functionalized DMABI Derivatives Armands Ruduss1,a*, Kaspars Traskovskis1,b, Raitis Grzibovskis2,c, Valdis Kokars1,d 1Faculty of Materials Science and Applied Chemistry, Riga Technical University, P.
To address these issues, we proposed a modular molecular structure, consisting of two molecular fragments: a light absorbing chromophore connected to a low molecular weight hole-transporting compound via a short unconjugated spacer.
Molecular structures of hole-transporting molecular glass DPCA and its hydroxyl- functionalized derivative DPCA-OH.
In a recent article Matsui et al. reported the formation of both the 5- and 6-carboxyl- regioisomers (corresponding to structures 3a and 3b) by refluxing the mixture of malononitrile and a decarboxylated 5-ethylester of 1 in ethanol [8].
Thin amorphous films used for the UV-Vis absorption measurements and determination of energy structure were prepared using a Laurell WS-400B-6NPP/LITE spin coater.
Online since: April 2012
Authors: Li Min Wang, Zhan Yi Cao, Xiu Li Hou, Xu Sun
Effects of microstructure and texture on the mechanical properties of extruded Mg−Gd−Nd−Y−Zn alloy Xiuli Hou1,a, Xu Sun1, Limin Wang2,b and Zhanyi Cao1,c 1Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130025, China 2State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, CAS, Changchun 130022, China axlhou@ciac.jl.cn (corresponding author), blmwang@ciac.jl.cn, ccaozy@jlu.edu.cn Keywords: Mg−Gd−Nd−Y−Zn alloy; Hot extrusion; Texture; Mechanical properties Abstract.
Because they can get rid of the impurities in Mg melts, refine the structure, and improve the performance of Mg alloys like flowing properties and processing characteristics [1, 2].
In comparison, the distribution of eutectic compounds in the ED-TD plane tends to exhibit a banded structure along the ED.
Conclusions (1) The hot extruded Mg−6.5Gd−1.3Nd−0.7Y−0.3Zn alloy exhibits a fully recrystallized grain structure, consisting of equiaxed grains of 18.5 µm diameter.
Wang, Structure and mechanical properties of extruded Mg-Gd based alloy sheet, Mater.
Online since: September 2013
Authors: Abdullah Mikrajuddin, Fitri Suryani Arsyad, Tuty Emilia Agustina
This type of dye was selected for current study since the chemical structure is known and the dye is frequently being applied for the dyeing of traditional cotton cloth in Indonesia.
Chemical structure of C.I.
Reactive Red 2 The chemical structure of C.I.
It can be explained as the nano-structure of catalyst possesses the larger surface are area so provide the more active surface to the reaction.
Yu, Photocatalyst TiO2 supported on glass fiber for indoor air purification: effect of NO on the photodegradation of CO and NO2: Journal of Photochemistry and Photobiology A: Chemistry.
Online since: March 2021
Authors: Daniela M. Topasna, Brianna A. Richmond, Carisa D. Kunkle
Structure and composition of these films can be controlled at the nanometer level, yielding a variety of tailored properties [7].
Their chemical structures are shown in Fig. 1.
Chemical structure of Brilliant Yellow (BY) (left image) and poly(allylamine hydrochloride) (PAH) (right image) (from Sigma Aldrich).
Tseng, “Conformal self-assembled thin films for optical pH sensors”, Smart Structures/Non-Destructive Evaluation, Proc.
[11] CRC Handbook of Chemistry and Physics, 91st ed.; Haynes, W.M., Ed.; CRC Press (Taylor and Francis Group): Boca Raton, FL, USA, (2010)
Online since: August 2017
Authors: Wuttinan Kongtud, Wirasak Smitthipong, Jirachaya Boonyarit, Suteera Witayakran, Rungsima Chollakup
Cellulose is the component for the rigidity structure to the cell plants.
From these properties, many researches were aimed to use natural fibers for reinforcement polymers in automotive industries such as car bumper beam, structure of car, airplane and ship, including to package products, etc [5].
Alkali treatment is also an alternative as many times these chemicals swell the cell wall matrix structure and give better penetration [10].
Alkaline treatment is mercerization method which removes impurity and changes crystallized structure of cellulose [15].
Cambridge, The Royal Society of Chemistry, 2012, pp. 161–182