Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: October 2014
Authors: Zhao Jing Li, Xiang Wen Kong, Huan Wang, Han Wang, Li Li Ren
Synthesis of Amyl Ferulate Catalyzed by Sodium Bisulfate Supported by Silica
Xiangwen Konga *, Huan Wangb , Han Wangc, Lili Rend and Zhaojing Lie
Department of Applied Chemistry , Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, China
akxwwz12168@163.com, b1191031293@qq.com, c9301470941@qq.com, d776587289@qq.com, elizhaojing1984@163.com
Keywords: amyl ferulate, silica, sodium bisulfate, catalysis, synthesis.
The structure of the product was characterized by IR, 1H NMR and MS spectrum.
MS: m/z 265[M + H]+ .By the analysis, we can conclude that the target product structure is correct.
Antioxidant Properties of Ferulic Acid and Its Related Compounds.Journal of Agricultural and Food Chemistry, 50 (2002) 2161-2168
Journal of Agricultural and Food Chemistry, 54 (2006) 5375-5381
The structure of the product was characterized by IR, 1H NMR and MS spectrum.
MS: m/z 265[M + H]+ .By the analysis, we can conclude that the target product structure is correct.
Antioxidant Properties of Ferulic Acid and Its Related Compounds.Journal of Agricultural and Food Chemistry, 50 (2002) 2161-2168
Journal of Agricultural and Food Chemistry, 54 (2006) 5375-5381
Online since: March 2013
Authors: Dan Yu Jiang, Qiang Li, Cai Xia Li, Lin Zhang
The as-obtained composites’ phase structure was analyzed and characterized by powder X-ray diffraction (XRD), their morphologies were also observed and cross-confirmed under the Transmission Electron Microscopy (TEM).
The measurements showed that the composites prepared in this work have a remarkable structure, and compared to the seperate TiO2 nano-tubes, the agglomeration of TiO2 nano-tubes covered on the surface of the graphene is apparently not so serious.
Daifullah, Impact of Surface Chemistry on the Removal of Indigo Carmine Dye Using Apricot Stone Active Carbon.
Peng, Structure and Formation of H2Ti3O7 Nanotubes in an Alkali Environment.
Peng, The Structure of Trititanate Nanotubes.
The measurements showed that the composites prepared in this work have a remarkable structure, and compared to the seperate TiO2 nano-tubes, the agglomeration of TiO2 nano-tubes covered on the surface of the graphene is apparently not so serious.
Daifullah, Impact of Surface Chemistry on the Removal of Indigo Carmine Dye Using Apricot Stone Active Carbon.
Peng, Structure and Formation of H2Ti3O7 Nanotubes in an Alkali Environment.
Peng, The Structure of Trititanate Nanotubes.
Online since: May 2020
Authors: Michail A. Ermakov, V.V. Vorobev, Ri Khosen
The Effect of Yttrium on the Distributions of Elements in Different Phase Structures and Properties of Chromium White Cast Iron
M.A.
The research results on the effect of small additions of yttrium 0-0.3 wt.% on the structure, hardness, microhardness and distribution of elements in various structural components of chromium white cast iron are presented.
It has been established that small additions of yttrium contribute to the grain refinement of the carbide phase and the formation of trigonal chromium carbide (Fe,Cr)7C3 in the structure of chromium white cast iron.
This work is aimed at studying the effect of small yttrium additions on the structure and properties of chromium white cast iron.
Chen, (Fe,Cr)7C3/Fe Surface Gradient Composite: Microstructure, Microhardness, and Wear Resistance, Materials Chemistry and Physics. 147 (3) (2014)
The research results on the effect of small additions of yttrium 0-0.3 wt.% on the structure, hardness, microhardness and distribution of elements in various structural components of chromium white cast iron are presented.
It has been established that small additions of yttrium contribute to the grain refinement of the carbide phase and the formation of trigonal chromium carbide (Fe,Cr)7C3 in the structure of chromium white cast iron.
This work is aimed at studying the effect of small yttrium additions on the structure and properties of chromium white cast iron.
Chen, (Fe,Cr)7C3/Fe Surface Gradient Composite: Microstructure, Microhardness, and Wear Resistance, Materials Chemistry and Physics. 147 (3) (2014)
Online since: October 2011
Authors: Li Liu, Shi Jie Xu, Song Zhan Li
Fluorescent probe is taken as a marker of oxidative stress in biology and has been applied to ROS detection in the field of biology and chemistry for high sensitivity, high simplicity of data collection and high resolution.
Fluorescent probe has wide application in the field of biology and chemistry for high sensitivity, high simplicity of data collection and high resolution.
From the dR6G structure it can be found that this probe has two electron-afforded methyl connecting to aromatic hydrocarbon, which has higher activity than other dihydro compounds, and is prone to react with ROS and lose two hydrogen atom.
The chemical Structures of dR6G and R6G are shown in Fig.1.
(a) (b) Fig.1 Chemical structure of dR6G(a) and R6G(b) Experimental Investigation Device and Reagent.
Fluorescent probe has wide application in the field of biology and chemistry for high sensitivity, high simplicity of data collection and high resolution.
From the dR6G structure it can be found that this probe has two electron-afforded methyl connecting to aromatic hydrocarbon, which has higher activity than other dihydro compounds, and is prone to react with ROS and lose two hydrogen atom.
The chemical Structures of dR6G and R6G are shown in Fig.1.
(a) (b) Fig.1 Chemical structure of dR6G(a) and R6G(b) Experimental Investigation Device and Reagent.
Online since: December 2016
Authors: Sankar P. Sanyal, Deepika Shrivastava
The band structure and density of state depict that 4f electrons of Ce element have dominant character in electronic conduction and are responsible for metallic character of CeTl.
Method of calculation CeTl crystallize in cubic B2 structure (space group Pm3m, no 221).
The electronic properties of CeTl are expressed in terms of band structure, total and partial density of state and charge density plots.
Fig. 2 The calculated (a) Band structure, (b) Total and partial density of state of CeTl (using GGA).
Palenzona, “Crystal chemistry of ompounds”, in Handbook of the Physics and Chemistry of Rare Earths, eds K.
Method of calculation CeTl crystallize in cubic B2 structure (space group Pm3m, no 221).
The electronic properties of CeTl are expressed in terms of band structure, total and partial density of state and charge density plots.
Fig. 2 The calculated (a) Band structure, (b) Total and partial density of state of CeTl (using GGA).
Palenzona, “Crystal chemistry of ompounds”, in Handbook of the Physics and Chemistry of Rare Earths, eds K.
Online since: June 2014
Authors: Louie Joseph, Javith Syed, Vasanthakumari Raju, Vikram Srinivas
Micro tubular structure was observed for PANI composite in SEM .
The synthesized PANI shows micro tubular structure Fig.6a.
The micro and nano magnetic particles are introduced to such structure during in-situ polymerization.
Micro tubular structure is observed for PANI composite in HR SEM .
Wei, Ultrasonic synthesis of polyaniline nanotubes containing Fe3O4 nanoparticles, Journal of Solid State Chemistry, 179 (2006) 2609-2615
The synthesized PANI shows micro tubular structure Fig.6a.
The micro and nano magnetic particles are introduced to such structure during in-situ polymerization.
Micro tubular structure is observed for PANI composite in HR SEM .
Wei, Ultrasonic synthesis of polyaniline nanotubes containing Fe3O4 nanoparticles, Journal of Solid State Chemistry, 179 (2006) 2609-2615
Online since: March 2018
Authors: Filiz Boran
Among these nanoparticles, semiconductor oxides with their unique morphologies and structures can offer many valuable applications [3].
The crystal structures were identified by X-ray diffraction (XRD: Bruker D8 Advance diffractometer using Cu-Kα irradiation).
The XRD spectrum of leaf-like hierarchical CuO nanosheets shows that the synthesized CuO is in a monoclinic structure.
Zhang: Journal of Physical and Chemistry of Solids Vol. 87 (2015), p. 197 [2] J.
Yan: Journal of Physics and Chemistry of Solids Vol. 70 (2009), p. 1461 [8] X.
The crystal structures were identified by X-ray diffraction (XRD: Bruker D8 Advance diffractometer using Cu-Kα irradiation).
The XRD spectrum of leaf-like hierarchical CuO nanosheets shows that the synthesized CuO is in a monoclinic structure.
Zhang: Journal of Physical and Chemistry of Solids Vol. 87 (2015), p. 197 [2] J.
Yan: Journal of Physics and Chemistry of Solids Vol. 70 (2009), p. 1461 [8] X.
Online since: March 2022
Authors: Arulampalam Kunaraj, Seri Mastura Mustaza, Steven Clowes, S. Ravi P. Silva, Iskandar Yahya
Kim, “Large-scale separation of singlewalled carbon nanotubes by electronic type using click chemistry”, Appl.
“Kim, Continuous, electrokinetic separation of single-walled carbon nanotubes using selective covalent chemistry: theory and experiment”, Sci.
Zheng, “DNA sequence motifs for structure-specific recognition and separation of carbon nanotubes”, Nature, 460, pp. 250–253, 2009
Balzano et al., “Tailoring (n,m) structure of single-walled carbon nanotubes by modifying reaction conditions and the nature of the support of CoMo catalysts,” Journal of Physical Chemistry B, vol. 110, no. 5, pp. 2108-2115, 2006
Bachilo, “Dependence of optical transition energies on structure for single-walled carbon nanotubes in aqueous suspension: An empirical Kataura plot,” Nano Letters, vol. 3, no. 9, pp. 1235-1238, 2003
“Kim, Continuous, electrokinetic separation of single-walled carbon nanotubes using selective covalent chemistry: theory and experiment”, Sci.
Zheng, “DNA sequence motifs for structure-specific recognition and separation of carbon nanotubes”, Nature, 460, pp. 250–253, 2009
Balzano et al., “Tailoring (n,m) structure of single-walled carbon nanotubes by modifying reaction conditions and the nature of the support of CoMo catalysts,” Journal of Physical Chemistry B, vol. 110, no. 5, pp. 2108-2115, 2006
Bachilo, “Dependence of optical transition energies on structure for single-walled carbon nanotubes in aqueous suspension: An empirical Kataura plot,” Nano Letters, vol. 3, no. 9, pp. 1235-1238, 2003
Online since: January 2012
Authors: Yi Feng Han, Hai Huang, Bao Cheng Zhou, Jia Sheng Wang, Jian Jia Du, Pei Pei Yu
Recently, we reported the isolation and structure elucidation of three new sesquiterpenes from L. sativa [15].
Its structure was elucidated by HR-ESIMS, IR, and 1D- and 2D-NMR experiments.
Fig. 1 Structure of compound 1 Materials and Methods Materials.
A voucher specimen (No. 070901) has been deposited in the Department of Chemistry, Zhejiang Sci-Tech University, China.
John, Isolation and structure determination of piptocarphins A-F, cytotoxic germacranolide lactones from Piptocarpha chontalensis, J.
Its structure was elucidated by HR-ESIMS, IR, and 1D- and 2D-NMR experiments.
Fig. 1 Structure of compound 1 Materials and Methods Materials.
A voucher specimen (No. 070901) has been deposited in the Department of Chemistry, Zhejiang Sci-Tech University, China.
John, Isolation and structure determination of piptocarphins A-F, cytotoxic germacranolide lactones from Piptocarpha chontalensis, J.
Online since: July 2012
Authors: Zi Li Liu, Qian Wen Dai, Cui Xia Xu, Jian Jie Zhang, Qi Gang Xie, Fan Zhang
Liquid-phase Selective Hydrogenation of Nitrobenzene over Ultrasonic-assisted Ni-Mo-P Amorphous Catalyst
Qianwen Dai1, a , Zili Liu1, c, Cuixia Xu2,b , Qigang Xie1 ,
Fan Zhang1 and Jianjie Zhang1
1Key Laboratory of Ministry of Education for Water Quality Security and Protection in Pearl River Delta, School of Chemistry & Chemical Engineering, Guangzhou University, China
2School of Chemistry & Chemical Engineering, Guangxi University, China
aamydai1989@126.com, b13416184988@163.com,
Corresponding author: Prof.
To verify the structure of Ni-Mo-P amorphous catalyst, the X-ray powder diffraction (XRD) was measured on a XD-3 system (Beijing Purkinje General Instrument Co., Ltd.) with Cu Kα (1.5405 Å) radiation source.
The XRD patterns of Ni-Mo-P amorphous catalysts prepared under different sonication power within 30 min are shown in Fig. 1 (A), except the sample of NMP (60 W), others all have a relatively broad peak at about 45° , corresponding to the typical amorphous structure [4-6], indicating that the introduction of ultrasonic did not change the structure of the catalysts.
A typical H4 hysteresis loop can be seen from Fig.2 (A), which demonstrates that the pore channel structure of the catalyst is narrow slit.
Rappoport (Ed.), The Chemistry of Anilines, John Wiley and Sons, 2007, p. 715
To verify the structure of Ni-Mo-P amorphous catalyst, the X-ray powder diffraction (XRD) was measured on a XD-3 system (Beijing Purkinje General Instrument Co., Ltd.) with Cu Kα (1.5405 Å) radiation source.
The XRD patterns of Ni-Mo-P amorphous catalysts prepared under different sonication power within 30 min are shown in Fig. 1 (A), except the sample of NMP (60 W), others all have a relatively broad peak at about 45° , corresponding to the typical amorphous structure [4-6], indicating that the introduction of ultrasonic did not change the structure of the catalysts.
A typical H4 hysteresis loop can be seen from Fig.2 (A), which demonstrates that the pore channel structure of the catalyst is narrow slit.
Rappoport (Ed.), The Chemistry of Anilines, John Wiley and Sons, 2007, p. 715