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Online since: August 2018
Authors: Jie Guang Song, Yue Liu, Cai Liang Pang, Xian Zhong Wang, Ming Han Xu, Lin Chen, Song Lin Guo, Xi Ling Zhang, Jia Zhang
Effect of the Synthesis Method
on the Properties of Ultrafine YAG Powder
Jieguang Song1a, Lin Chen2, Cailiang Pang1, Jia Zhang2, Xianzhong Wang2, Yue Liu1, Xiling Zhang2, Songlin Guo1, Minghan Xu3b
1Engineering & Technology Research Center for Environmental Protection Materials and Equipment of Jiangxi Province, School of Materials and Chemistry Engineering,
Pingxiang University, Pingxiang 337055 China
2Key laboratory for Industrial Ceramics of Jiangxi Province, School of Materials and Chemistry Engineering, Pingxiang University, Pingxiang 337055 China
3School of Mechanical and Materials Engineering, Jiujiang University, Jiujiang 332005, China
asongjieguang@163.com, b93618054@qq.com
Keywords: YAG; ultra-fine powder; co-precipitation method; hydrothermal precipitation method
Abstract.
The powder has a polycrystalline structure.
The powder has a polycrystalline structure.
Online since: April 2020
Authors: Sri Juari Santosa, Eko Sri Kunarti, Nuryono Nuryono, Naura Nadhifah, Wening Rara Pratita
Synthesis of Gold Nanoparticles Using Glutamic Acid as a Reductor and Capping Agent
NAURA Nadhifaha, WENING Rara Pratitab, EKO Sri Kunartic,
NURYONO Nuryonod and SRI Juari Santosae*
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
anauranadhifah@gmail.com, brarapratita@gmail.com, ceko_kunarti@ugm.ac.id, dnuryono_mipa@ugm.ac.id, esjuari@ugm.ac.id
Keywords: Gold nanoparticles, glutamic acid, capping agent
Abstract.
Glutamic acid has a structure of 2 carboxylic groups and 1 amine group.
In this study, it is intended to synthesize gold nanoparticles with glutamic acid as a capping agent using a green chemistry method.
Glutamic acid has a structure of 2 carboxylic groups and 1 amine group.
In this study, it is intended to synthesize gold nanoparticles with glutamic acid as a capping agent using a green chemistry method.
Online since: August 2016
Authors: Sebastião Elias Kuri, Jorge Otubo, P. Hammer, Carlos Alberto della Rovere, Rodrigo Silva
Kuri1, e
1Department of Materials Engineering, Federal University of São Carlos
Rodovia Washington Luis, Km 235. 13565-905 São Carlos, SP, Brazil
2Institute of Chemistry, São Paulo State University, Rua Prof.
This behavior, which has been observed in 304L SS even in the non-sensitized condition, has been attributed mainly to the structure and energy of the grain boundaries, and to the grain boundary segregation of some elements such as phosphorus (P), sulfur (S), boron (B) and silicon (Si) [3, 4].
Kuri: Materials Chemistry and Physics Vol. 133 (2012), p. 668
This behavior, which has been observed in 304L SS even in the non-sensitized condition, has been attributed mainly to the structure and energy of the grain boundaries, and to the grain boundary segregation of some elements such as phosphorus (P), sulfur (S), boron (B) and silicon (Si) [3, 4].
Kuri: Materials Chemistry and Physics Vol. 133 (2012), p. 668
Online since: January 2022
Authors: Ahmad Zahirani Ahmad Azhar, Afifah Ali, Hanisah Manshor
The phase composition and crystalline structure of the sintered samples were analysed by XRD (Bruker D8 Advance) with CuKα radiation operating at 40kV and 30mA.
Awaad, Effect of processing techniques on the properties of SrAl12O19/ZTA composites, Materials Chemistry and Physics 254 (2020) 123451
Amer, Strontium hexaaluminate/ZTA composites: Preparation and characterization, Materials Chemistry and Physics 232 (2019) 23-27
Awaad, Effect of processing techniques on the properties of SrAl12O19/ZTA composites, Materials Chemistry and Physics 254 (2020) 123451
Amer, Strontium hexaaluminate/ZTA composites: Preparation and characterization, Materials Chemistry and Physics 232 (2019) 23-27
Online since: August 2017
Authors: Supamas Danwittayakul, Phitchaya Muensri
The results were investigated the affinity of rest ions are much weaker than phosphate [16] and aperrence of phosphate interfered the adsorption of arenic probably becacuse phosphate and arsenate that have similary of oxyanions structure [17] and affinity for metals oxide nanoadsorbents [11].
Lodeiro., et al, Novel Fe loaded activated carbons with tailored properties for As(V) removal: adsorption study correlated with carbon surface chemistry, Journal of Chemical Engineering. 215-216 (2013) 105-113
Praphairaksit., Iron-loaded zein beads as a biocompatible adsorbent for arsenic(V) removal, Journal of Industrial and Engineering Chemistry. 43 (2016) 127-132
Lodeiro., et al, Novel Fe loaded activated carbons with tailored properties for As(V) removal: adsorption study correlated with carbon surface chemistry, Journal of Chemical Engineering. 215-216 (2013) 105-113
Praphairaksit., Iron-loaded zein beads as a biocompatible adsorbent for arsenic(V) removal, Journal of Industrial and Engineering Chemistry. 43 (2016) 127-132
Online since: April 2015
Authors: Peng Peng Wang, Hong Guo, Xi Min Zhang, Yuan Yuan Han, Ye Ming Fan, Shu Xian Li
In the present, the main work is addressed to investigate the effects on wettability and TC of diamond/Al composites of addition the Ti and B elements, paired with an analysis of the resulting interfacial chemistry.
Compared to the structure of diamond/Al, the carbon of diamond surface is facilitate to adsorb with added active B element and form a diffusing interface layer with the Al matrix.
[10] H Feng, JK Yu, Microstructure and thermal properties of diamond/aluminum composites with TiC coating on diamond particles, Materials chemistry and physics, 2010 [11] P.W.
Compared to the structure of diamond/Al, the carbon of diamond surface is facilitate to adsorb with added active B element and form a diffusing interface layer with the Al matrix.
[10] H Feng, JK Yu, Microstructure and thermal properties of diamond/aluminum composites with TiC coating on diamond particles, Materials chemistry and physics, 2010 [11] P.W.
Online since: July 2012
Authors: Yuan Dong Xu, Hui Ling Cui, Yu Jun Zhang, Hui Bo Song
Production of Low Calorie Oil with Enzymatic Catalysis Method
Huiling Cui1, Yuandong Xu2,a, Yujun Zhang2,b and Huibo Song3
1Department of Food Engineering, Luohe Vocational Technology College, Luohe 462000, China
2School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
3Department of Applied Biology, Zhejiang Pharmaceutical College, Ningbo 315100, China
aydx11@126.com, bzyj7853@yahoo.com.cn
Keywords: Soybean Oil, Glycerol Triacetate, Lipase, Transesterification, Low Calorie Fat, Calorific Value.
However, the structures of the carbohydrate and protein are instability under high temperature and it is not suitable for such oil used in high temperature treated food.
Bi: Oils and fats chemistry.
However, the structures of the carbohydrate and protein are instability under high temperature and it is not suitable for such oil used in high temperature treated food.
Bi: Oils and fats chemistry.
Online since: May 2021
Authors: Adhitasari Suratman, Dwi Siswanta, Alifa Zahra Adhyana
The Effect of CTAB on Bentonite for Slow Release Fertilizer
Adhitasari Suratmana*, Alifa Zahra Adhyanab, and Dwi Siswantac
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Gadjah Mada, Yogyakarta, Indonesia
aadhitasari@ugm.ac.id, balifa.zahra.a@mail.ugm.ac.id, cdsiswanta@ugm.ac.id
Keywords: Bentonite, CTAB, NPK, slow release fertilizer
Abstract.
X-ray diffraction pattern of (a) unmodified bentonite and (b) CTAB modified bentonite Spectra of CTAB modified bentonite was shown in Figure 1b) that showed specific absorption of bentonite, indicated that modification of bentonite by CTAB did not change the basic structure of bentonite.
Steffens, Ullmanns Encyclopedia of Industrial Chemistry, John Wiley & Sons Inc., New York, 2009
X-ray diffraction pattern of (a) unmodified bentonite and (b) CTAB modified bentonite Spectra of CTAB modified bentonite was shown in Figure 1b) that showed specific absorption of bentonite, indicated that modification of bentonite by CTAB did not change the basic structure of bentonite.
Steffens, Ullmanns Encyclopedia of Industrial Chemistry, John Wiley & Sons Inc., New York, 2009
Online since: November 2012
Authors: Kristjan Juhani, Ants Lõhmus, Valter Reedo, Irina Hussainova, Madis Umalas
Formation of the heterogeneous finely dispersed structures in ZrC–TiC mixtures also are of a great interest because their possible contribution into development of superplastic ceramic-based composites [1-3].
Combinations of sol – gel chemistry and carbothermal reduction have proved to provide new routes to synthesize non-oxide such ceramics as carbides [8].
Synthesis of crystalline metal nitride and metal carbide nanostructures by sol—gel chemistry.
Combinations of sol – gel chemistry and carbothermal reduction have proved to provide new routes to synthesize non-oxide such ceramics as carbides [8].
Synthesis of crystalline metal nitride and metal carbide nanostructures by sol—gel chemistry.
Online since: January 2006
Authors: Feng Xing, Zheng Liang Cao, Liang Peng Deng, Li Dong Huang
Study on Preparation Technique for Low-Cost
Green Reactive Powder Concrete
Feng Xing
1,a, Li-Dong Huang
1,b, Zheng-Liang Cao
1,c
and Liang-Peng Deng
1,d
1
Shenzhen Municipal Key Laboratory for Durability of Civil Engineering Structure,
Shenzhen University, Shenzhen, 518060, P.R.China
a
email:xingf@szu.edu.cn, bemail: hld001@sohu.com
c
email:zhengliangcao@126.com, demail:hlinm@tom.com
Keywords: reactive powder concrete; silica fume; fly ash; steel fiber; strength
Abstract.
It is made from conventional concrete components with specifically selected chemistry and particle size.
RPC stems from efforts to optimize the microstructure of the concrete matrix by precisely gradating of all mix particles to yield an optimum density, and by extensively using of the pozzolanic properties of highly refined silica fume to optimize the Portland cement chemistry and produce hydrates with the highest strength.
It is made from conventional concrete components with specifically selected chemistry and particle size.
RPC stems from efforts to optimize the microstructure of the concrete matrix by precisely gradating of all mix particles to yield an optimum density, and by extensively using of the pozzolanic properties of highly refined silica fume to optimize the Portland cement chemistry and produce hydrates with the highest strength.