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Online since: July 2025
Authors: Ilja Makkonen
Positronium chemistry by quantum Monte Carlo.
Positron chemistry by quantum Monte Carlo.
Positron and positronium chemistry by quantum Monte Carlo.
The Journal of Physical Chemistry, 100(15):6057-6060, 1996
The stability and structure of Li+Ps2 and Na+Ps2.
Online since: May 2004
Authors: Zoltán Lenčéš, Pavol Šajgalík, G. Korb, F.I. Bulić
Gradient Structures in SiAlON´s for Improved Cutting Performance F.
To achieve substantial change in microstructure from surface to inner core and sufficient toughness in a SiAlON-structure there are two possibilities: first to change the outer region in to α´-SiAlON and to keep a β-or (α + β) core-or second to change the α-structure in a way that elongated grains can cause the desired toughness property. [4].
Both methods are feasible with the design of the SiAlON material, this includes the careful control of the complex chemistry (e.g. amount of the glassy phase at the grain boundaries) and the careful control of the sintering process.
For the microstructural characterisation the specimens have partially been broken, cutted and grinded through the center to make the core-rim structure visible.
The high resolution in Fig. 3 is demonstrating the structure achieved in the rim and core, there was a significant disparity in the microstructure.
Online since: January 2017
Authors: Ji Gang Wang, Yong Zhi Yu
Journal of Materials Chemistry, 2008, 18(41): 4893-4908
Journal of Materials Chemistry C, 2014, 2(39): 8212-8215
Industrial & Engineering Chemistry Research, 2014, 53(6): 2318-2330
Chemistry–A European Journal, 2007, 13(17): 4969-4980
Chemistry–A European Journal, 2008, 14(27): 8177-8182
Online since: July 2014
Authors: Hai Xing Liu, Quan Hua Fan, Lin Tong Wang, Ting Ting Huang, Qiang Chen, Hui Cao
Determination of Brucine in Strychnos by Capillary Electrophoresis Haixing Liu1,a, Qiang Chen1,b, Tingting Huang1,c, Quanhua Fan1,d, Lintong Wang1,e, Hui Cao2,f 1College of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, P.R.
ZR2010BL025), Open Project of State Key Laboratory of Supramolecular Structure and Materials (No. sklssm201323)(Jilin University), State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (No. 2011-13)(Jilin University), "Biochemistry and Molecular Biology" Shandong Province Key Laboratory (Weifang University).
References [1] ZHU Zhi-jia, CHINESE JOURNAL OF CHROMATOGRAPHY, 18, 468(2000) [2] ZHU Long, FENG Man-Liang, WAN Xiu-Qin, LU Jiu-Ru, CHEMICAL JOURNAL OF CHINESE UNIVERSITIES, 17,1693(1996) [3] MA Qiang, WANG Chao, BAI Hua, WANG Xing, DONG Yi-yang, HE Rui-yun, WU Ting, ZHANG Qing, Chinese Journal of Analysis Laboratory, 28, 38(2009) [4] LIU Jian, HAN Feng-Mei, CHEN Yong, Chinese Journal of Analytical Chemistry, 37, 609(2009) [5] XIONG Xiao-Ting, WU Hui-Qin, HUANG Xiao-Lan, Chinese Journal of Analytical Chemistry, 37, 1433(2009) [6] W.S.
Analytical and Bioanalytical Chemistry, 376, 210(2003) [8] ZHANG Fang, PAN Yang, LIU Liang-jing, Pharmaceutical Biotechnology, 18, 441(2011)
Online since: April 2010
Authors: Wei Jie Lu, W.C. Mitchel, John Boeckl, Edwina Clarke, Roland L. Barbosa
Barbosa2 , and Weijie Lu2 1 Air Force Research Laboratory, Materials and Manufacturing Directorate, AFRL/RXPS, Wright Patterson AFB, OH 45433-7707, USA 2 Department of Chemistry, Center for Physics and Chemistry of Materials, Fisk University, Nashville, TN 37208, USA a john.boeckl@wpafb.af.mil Keywords: Graphene growth, SiC, and growth mechanism Abstract.
The graphene/SiC structure is usually grown in either high vacuum or ultra high vacuum environments [1].
The quality of the graphene is found to be dependent on the starting surface structure of SiC wafers.
The surface structures in Ref. [4] could be argued to be graphene with "wrinkles".
Cross-sectional TEM images show that one layer graphitic-like structures with poor crystallinity are formed at 1500ºC for 30 minutes and multi-layered graphene structures are formed at 1700ºC for 30 minutes, as shown in Fig. 4.
Online since: October 2017
Authors: Avinash Patil, Chutamanut Wongyara, Tarawipa Puangpetch, Kritapas Laohhasurayotin, Preeyaporn Harnkar, Cheewita Suwanchawalit
Preparation of Magnetic Zinc Ferrite Nanoparticles and their Photocatalytic Performance Chutamanut Wongyara1,a, Preeyaporn Harnkar1,b, Cheewita Suwanchawalit1,c*, Tarawipa Puangpetch2,d, Kritapas Laohhasurayotin3,e, Avinash Patil4,f 1Department of Chemistry, Faculty of Science, Silpakorn University, Sanam Chandra Palace Campus, Nakornpathom, Thailand 73000 2Department of Chemistry, Faculty of Engineering and Industrial Technology, Silpakorn University, Sanam Chandra Palace Campus, Nakornpathom, Thailand 73000 3Hybrid Nanostructure and Nanocomposites Laboratory (HNN), National Nanotechnology Center (NANOTEC), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand 12120 4Centre for Organized Matter Chemistry, School of Chemistry, University of Bristol, Bristol, UK BS8 1TS acw_9233@hotmail.com, bp.harnkar@gmail.com, csuwanchawalit_c@su.ac.th, dtarawipa@gmail.com, ekritapas@nanotech.or.th, fAvinash.patil@bristol.ac.uk Keywords: ZnFe2O4
The XRD results confirmed the formation of a cubic spinel structure in all samples.
Sodium dodecyl sulfate (SDS) is anionic surfactant which is often used as a structure directing agent in the synthesis of a number of photocatalytic materials [8-9].
In this work, ZnFe2O4 nanoparticles were prepared by the co-precipitation method using SDS as a structure directing agent.
All XRD patterns were consistent with a cubic spinel structure of ZnFe2O4 (JCPDS No.22-1012) [12].
Online since: October 2018
Authors: E.A. Ryzhkova, D.V. Dmitrieva, Elvira B. Kolmachikhina
Zinc sulfide preferential wettability by oil was tested in presence anionic surfactants with different chemical structures.
It’s observed that SDBS have a strong effect on adhesion work decreasing in comparison with SDS, that on our opinion can be related with benzene rings presence in SDBS structure.
Bolatbaev, Relationships of lignosulfonate adsorption onto the zinc sulfide surface, Russian Journal of Applied Chemistry. 11 (2016) 1831-1837
Nikiforov, Physics and chemistry of microflotation, GOU VPO UGTU-UPI, Ekaterinburg, 2006
Sltys, Hydrophobic interaction between polymethactylic acid and sodium laureth sulfate in aqueous solutions, Russian Journal of Physical Chemistry A. 9 (2014) 1510-1513.
Online since: December 2011
Authors: Nai Di Tan, Masayuki Toda, Katsuo Olihara, Yan Lin Zhang, Xi Wu Fan, Noriko Asano
When we take notice the structure of various photoelectron devices, the laminating by different material comes to the front in numerous cases.
Structure of PAT-6 and PQ is shown in Fig.1.The cyclohexanone used as a solvent of these polymers is min. 99.0% impurity which purchased from Kanto Chemistry Incorporated Company.
The layer structure of PQ/PAT-6 was observed in the Fig.3 (a) at the slower drying condition of 21˚C under normal pressure.
Furthermore, we observed the cross-sectional structure of these films also with quantitative method by using EDS.
Matumoto: proceeding of Tohoku brunch Conference of the Chemistry 7Group of the Societies, 67 (1981) [2] K.
Online since: March 2024
Authors: Omod Ojulu, G. Kanthimathi, Raji Feyisa Bogale, Ponnusamy Thillai Arasu
Coordination compounds, as they relate to the transition metals, are one of the most actively researched fields in inorganic chemistry.
The molecular parts and complex structures of the complex are identified by the infrared absorption bands.
Below are the suggested structures (Fig. 10).
Chen,( Inorganic Chemistry 56.6507e6511,(2017)
Joural of Indian English Chemistry. 31, (2015) ,393–396
Online since: August 2014
Authors: Chai Yan Ng, Zhang Rong Yip, Zainovia Lockman, Abdul Razak Khairunisak
After hydrothermal reaction for 24 h (Fig. 1e), the nanorods grew longer and aggregated, formed denser structure.
These nanorods were not grown vertically from the substrate but formed web-structure, as seen in the cross-sectional view (Fig. 3a).
Patil, Efficient electrochromic performance of nanoparticulate WO3 thin films, Journal of Materials Chemistry C, 1 (2013) 3722-3728
Li, Morphology-tailored synthesis of vertically aligned 1D WO3 nano-structure films for highly enhanced electrochromic performance, Journal of Materials Chemistry A, 1 (2013) 684-691
Ma, Synthesis, assembly, and electrochromic properties of uniform crystalline WO3 nanorods, The Journal of Physical Chemistry C, 112 (2008) 14306-14312