Search results

Results in table 3.We hypothesized that the target product is mainly single-ligand herbal-sarcandra-flavone germanium but it’s hard to obtain the crystal for single crystal structure analysis.
Further study about stereo structure remains to be conducted.
[4]Li Chum-Mei,Yu Jianpina.Study on ultrasonic wave extracting process for total flavones from sarcandra glabra [J].Chemistry&Bioengineering,2009(7):91-94
Characteristics of Analytical Chemistry, 2006,34 (1): 52-55
Analytical Chemistry; 1994,04:428

Physical Chemistry Research 7, 4 (2019) 799-812
Arabian Journal of Chemistry 14, 6 (2021) 103180
Inorganic Chemistry. 59, 14 (2020) 9824-9837
Materials Today Chemistry. 20 (2021) 100438
Inorganic chemistry. 51, 16 (2012) 9039-9044

Preparation of ZnO Nanopowder by Chemical Liquid-phase Method with Polyethylene Glycol Additives Zhongzhou Yi1, a, Wei Liu 1,b, Guowei Zhang1, c, Ying Li1, d and Zhipeng Xie2,e 1 Department of chemistry, Honghe University, Yunnan 661100, China 2 Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China a yizhongzhou@tsinghua.org.cn, bliuwei4728@126.com, czgw258@yahoo.com.cn, d wmz800929@163.com, exzp@tsinghua.edu.cn Keywords: ZnO nanopowder; Chemical Synthesis; Ultraviolet spectroscopy Abstract.
One-dimensional ZnO nanopowder was prepared by chemistry liquid-phase method with polyethylene glycol (PEG) as additive in [Zn(OH)4]2 premonitory solution.
TEM results showed that the nanopowder with the diameter of 30~50nm has the structure such as the good crystal state and well-defined crystallographic surfaces.
The selected-area electron diffraction reveals that the obtained ZnO nanopowder exhibit a single-crystal structure, which is in agreement with the XRD patterns.

Barczak 2d 1 Department of Crystallography, Faculty of Chemistry, Maria Curie-Skłodowska University, sq.
Marii Curie Skłodowskiej 3, 20-031 Lublin, POLAND 2 Department of Theoretical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, sq.
The influence of temperature of synthesis on the structure of PMOs was examined.
The integration of organic groups with inorganic constituents (silicon atoms) in one material gives many advantages and provides an excellent opportunity for organosilicon chemistry.
The XRD patterns show the hexagonal symmetry and influence of surfactant nature on the structure type (SBA-15 or MCM-41).

Fig.5 presents the spherical structure of PTP, PTP/microcrystal muscovite.
Fig. 5(a) and(b) are pure PTP, as the spherical structure.
Weng: Progress in Chemistry. 22-10 (2010) 2053
Zhang: Journal of Solid State Chemistry. 179 (2006) 1569-1574
Chong: Polymer Chemistry. 46 (2008) 2097-2107

Structure and Mechanical Properties of Mg-Zn-RE System Alloys Jie Yang1,2,a, Jun Wang 1,b, Wenlong Xiao1,3,c, Lidong Wang1,d, Yaoming Wu1,e, Hongjie Zhang1,f Limin Wang1,g, 1 Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China 2 Graduate School of the Chinese Academy of Science, Beijing 100049, China 3 Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130025, China a yangjie@ciac.jl.cn, b wangjun1977@ciac.jl.cn, c wlxiao@ciac.jl.cn, d ldwang@ciac.jl.cn, e ymwu@ciac.jl.cn, f hongjie@ciac.jl.cn, g lmwang@ciac.jl.cn Keywords: Mg-Zn-RE alloys; Structure; Mechanical properties Abstract.
In recent few decades, a series of new Mg-Zn-RE system alloys have been obtained, and detailed the structure and mechanical properties of the alloys.
In this paper, the structure and mechanical properties of the Mg-Zn-RE alloys have been summarized.
Structures In Mg-Zn-RE system alloys, the solid solubility of Zn and RE changes greatly with decreasing temperatures.
Quasicrystals are isotropic and possess a specially ordered lattice structure called the quasiperiodic lattice structure.

Among the process parameters, electrolyte provides a leading role owing to its vital influence not only on the films’ chemistry but also on the electrical conductivity of the circuit, which affects the film properties.
However, they have the disadvantage of being bioinert, and many techniques have been made to modify their surface microstructure, composition, and chemistry to improve the bone bonding ability of titanium implants[1,2].
Among these parameters, electrolyte provided a leading role owing to its vital influence not only on the films’ chemistry but also on the electrical conductivity of the circuit, which varies the currents and affects the microstructures[3,7].
It could be seen that a porous structure was formed on the oxidized titanium surfaces, and the pores, which were typically less than 2μm in diameter, were separated and distributed at the temperature of 10 °C.

.), “Analysis of the Effect of the Oxide Ion Vacancy on the Crystal Structure of La1-xCaxCrO3-?
: Molecular Dynamics Study” (S.N.Savvin et al.), “Stress-Induced Diffusion and Cation Defect Chemistry Studies of Perovskites” (K.Salama et al.), “Transport and Electrochemical Properties of LiyNixMn2-xO4 Cathode Materials” (J.Molenda et al.), “Static and Dynamic Heterogeneities in Supercooled SiO2” (Vo Van Hoang), “Charge Distribution and Magnetic Interactions in PrBa2Cu3O7 with Substitutional Defects and Oxygen Disorder: the ab initio Approach” (M.?

The structure of the LDH is shown as Figure 1.
This characteristic is used to prepare new functional materials, which is widely spreading in the chemistry region.
Structure and surface chemistry of manga-nesedoped Copper-basedmixed metal oxides derived from layered double hydroxides．Colloid Surface A, 2004, 244:p169-177
Industrial and Engineering Chemistry Research. 1995,34(4):p1196-1202
Chemistry, Volume 5, 2000:p20~24

The process consists of silane/propane/hydrogen chemistry with HCl used as a growth additive to increase the growth rate. 3C-SiC has also been grown on 22, 52 and 123 µm deep etched MEMS structures formed by DRIE of (100) Si at a rate of about 8 µm/h.
Since it has been demonstrated that HCl increases the growth rate of 4H-SiC when used as an additive in the SiC chemical vapor deposition (CVD) precursor chemistry [4], we added HCl to our standard propane/silane/hydrogen gas mixture in order to increase the growth rate of single crystal 3C-SiC on (100) Si for MEMS applications.
Bare n-type(100) silicon as well as MEMS mold structures formed by deep reactive ion etching (DRIE) [6] of (100) Si, were used as substrates in this study.
The DRIE silicon mold structures included such shapes as trenches, square pads, and compressor blades.
Epitaxial growth was also performed on (100) Si MEMS structures which were fabricated using DRIE to have three different trench depths.