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Online since: October 2011
Authors: Yi He Zhang, Jun Hui Ji, Zhi Chao Zhen, Yu Xia Yin
Antibacterial Zinc Diatomite Zhichao Zhen1, a, Yihe Zhang 1,*b , Junhui Ji 2,c , Yuxia Yin 1,d 1State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China 2 Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, China azhenzc1979@163.com, *b zyh@cugb.edu.cn, c jhji@263.net, d yinyuxiayyx@126.com, Keywords: Antibacterial, Zinc, Diatomite, Adsorption Abstract.
These microscopic algae have the capability of extracting silica from water to produce the skeletal structure.
Diatomite particles are characterized by their irregular shapes and pore structures and approximately 90% of the diatomite volume consists of tiny, inter-connected pores or voids.
Conclusions In conclusion, diatomite has a very stable chemistry composition, high specific surface area, and good adsorption ability.
Online since: December 2012
Authors: Rui Guo, Bing Zhang, Wen Xi Zhang
Measuring the melt conduction of industrial production has important significance to understand the conductive mechanism and the melt structure.
So the measurement of the electrical conductivity is benefit not only to the industry production but also to the understanding of the microscopic structure of melt.
[2] M.M.Antonova,V.B.Chernogorenko.Resistance to Hydrogen of Al-Sc alloys[J].Russian Journal of Applied Chemistry,2001,74(3):396~399
[10]Wang Zhao-wen,Hu Xian-wei,Gao Bing-liang,et al.Application of measuring electrical conductivity of cryolite-based melts by CVCC technique[J].Journal of NortheasternUniversity:Natural Science,2006,27(7):786-789 [11] Gao X X.Electroanalysing chemistry introduction[M].Beijing: Science Press, 2006.22
Online since: January 2013
Authors: Ping Fang Tao, Yu Feng Zeng, Zhang Hua Jiang, Li Qin Qin
Preparation of Light-color Rosin and Preliminary Analysis of Decoloration Mechanism Yufeng Zenga, Zhanghua Jiangb, Liqin Qinc, Pingfang Taod School of Chemistry and Material, Yulin Normal University, Yulin, P.R.China aZengyufeng1968@yahoo.com.cn, bjzh2007006@tom.com, cqinliqin@163.com, dtpf005@126.com Keywords: Light-color Rosin; Preparation; decoloration mechanism Abstract.
The effect on rosin of the dosage of TM-430 TM-430 and TM-923 are phosphate sulfides compound antioxidants which have a similar chemical structure.
Their chemistry structure are stable than abietic acid which is not easy to be oxidize[1].
Online since: March 2013
Authors: Hai Yan Zhu, Bo An
These structures with one two or more metals sandwiched between the two cyclopentadienyl (η5-C5H5) ring, form micro metals doped carbon structure materials.
Results and discussion Optimized Structure of Dimetallocenes Take the Cp2Ti2 (Cp=η5-C5H5) Dimetallocenes as an example (shown in Fig. 1), it is seen that a pair of metal molecules are stuck between two Cp circles, forming a sandwich-type structure, Ti-Ti bond is collinear with the C5 axes of the Cp rings.
Based on the Cp2Ti2 structure, the structure CpTM2Cp is proposed, among it, TM is the compound of Sc-Zn or of some kind in the transition group metal in the third row metals.
Taken as materials for hydrogen storage, Cp2TM2 is relatively ideal in its structure, which can keep its stable structure under the normal temperature.
Bioorganometallic chemistry of ferrocene.
Online since: January 2017
Authors: Yang Wang, Wei Chen, Li Xia Wang, Yong Tao Li, Liang Xie, Hong Guang Zhang, De Xiang Fu, Wen Zhi Li, Yu Zhuang Liu
The refined data were well calculated according to the rhomboidal structure with R-3 group space of CaMn7O12.
The results manifest that the samples are all well single phase, and the lattice structure for the Ga doped sample is the same as the structure of undoped CaMn7O12, belonging to rhombohedral structure at room temperature, which is identical with the structure reported in literature [5].
The rhombohedral atomic structure diagram of CaMn7O12 is shown in Figure 1(b).
And the lattice structure and magnetic behavior were systematically investigated.
Journal of Inorganic Chemistry, 32(2016)762
Online since: September 2014
Authors: Huai Yuan Wang, Hua Song, Zai Shun Jin, Yan Ji Zhu, Hua Lin Song, Fu Yong Zhang
Effect of The Reduction Temperature on Nickel Phosphide Catalyst Structure and Catalytic Activity for Hydrodesulfurization  Hua Song1,a, Fu-Yong Zhang1,b, Zai-Shun Jin2, c, Huai-Yuan Wang1, d, Yan-Ji Zhu1, e, Hua-Lin Song*,3, f 1Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China 2Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, China 3Department of Image College, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, China asonghua2004@sina.com, b867881282@qq.com, czaishun5@126.com, dwanghyjiji@163.com, ejsipt@163.com, fsonghualin401@126.com (Corresponding Author) Keywords: Reduction temperature, Nickel phosphide, Model oil, Hydrodesulfurization Abstract.
The effects of reduction temperature on catalyst structure and HDS activity were studied using a lab-scale continuous flow fixed-bed reactor.
In this work, a number of composite TiO2-Al2O3 supported nickel phosphide catalysts were prepared and the effect of reduction temperature on the catalyst structure and HDS activity for DBT was studied.
To protect the metal phosphide structures, the prepared Ni2P is passivated in O2/N2 mixtures (0.5 vol. % of O2) with flow rate of 20 mL/min for 2 h.
In addition, for samples (1)-(3), the peaks observed at 2θ=25.2°, 37.8°, 48.0°, 54.0° and 55.0° correspond to the characteristic peaks of anatase TiO2 and no rutile TiO2 was observed, indicating that most of the TiO2 has the anatase TiO2 structure, and reduction temperature has little effect on the crystalline phase of TiO2.
Online since: June 2025
Authors: Nadiya Miftachul Chusna, Arif Hidayat, Sunaryono Sunaryono, Anugrah Pratama Supriyono
The complete structure of the DSSC solar cell assembly is illustrated in Fig. 2.
Zhang, Core-shell like rGO coated Co9S8 hollow dodecahedron for enhanced oxygen evolution reaction, Journal of Physics and Chemistry of Solids, 196 (2025) 112318
Botiz, Reduced graphene oxide today, Royal Society of Chemistry. (2020)
Li, Dual-functional Fe3O4@N-rGO catalyst as counter electrode with high performance in dye-sensitized solar cells, Journal of Electroanalytical Chemistry, 823 (2018) 261–268
Farahmandjou, Effect of PVA/PEG-coated Fe3O4 Nanoparticles on the Structure, Morphology and Magnetic Properties, Physical Chemistry Research, 10 (2022) 537–547
Online since: December 2011
Authors: Ping Wang, Zhan Qu, Jian Bing Zhang
Figure 2 shows microstructure of samples 4 is like channel network node, making the structure of cement become more dense, especially porous structure greatly improved, which results in decrease of permeability to improve the corrosion resistance of cement .
The fine micro-silicon particles fill pores in the cement and also with physical and chemical effects between micro silica and cement, the internal structure of cement (including the pore structure) [4] is improved.
C-S-H gel generated by C2S hydration has a similar network node structure with C-S-H (Ⅱ) , which make the structure of cement become more dense and corrosion resistance of cement increase a lot.
Oilfield Chemistry, 1999, 16 (4) :377-383
Oilfield Chemistry, 1999,16 (1) :10-13
Online since: February 2014
Authors: Lei Wang, Xiao Rui Li, Xiao Jia Xue, Hua Bo Fan, Xiao Juan Lai
The molecular chain structure was not destroyed notably [7].
During this process, the structure of PVA was not destroyed.
The dissociation of the gel structure occurred, and the gel changed into collosol.
In system 1, elasticity is more than viscosity, the gel structure was stable.
Oilfield Chemistry, vol.26 (2009), p. 135 [2] L Wang, Y D Shen and X W Yang.
Online since: January 2016
Authors: Lau Kok Keong, Bhajan Lal, Qazi Nasir
Clathrates are categorized mainly into three different structures namely sI, sII and sH (Fig. 1) [1].
Fig. 1: Cages building of different gas hydrates structure [4].
Since CO2 is known to form structure I hydrate, however there are several studies reported [14] that together with CO2 and THF it formed structure II hydrate where both large and small cavities are partially occupied by THF and CO2.
Max, On-site freshwater production for offshore facilities, Proceedings in: SPE International Symposium on Oilfield Chemistry 2007. (2007) 431-433
Fürst, Effect of THF on equilibrium pressure and dissociation enthalpy of CO2 hydrates applied to secondary refrigeration, Industrial and Engineering Chemistry Research. 45 (2006) 391-397