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Progress in Chemistry 2003, No.01 Previous issue Next issue

In this issue:

Review
Marangoni Effect and Liquid Membrane Oscillation
Li Dongmei,He Zhanbo**
2003, 15 (01): 1- |
Published: 24 January 2003
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Abstract
The formation and development of Marangoni effect ,as well as the relationship with lipuid membrane oscilllation is summarized systematically .Three different types of oscillation are analyzed quantitatively based on Marangoni effect .Mathematical relations are given and compared with the chemical nature theory of lipuid membrane oscillation .
Marangoni Effect in the Mass and Heat Transport Processes*
Sha Yong,Cheng Hong**,Yu Guozong
2003, 15 (01): 9- |
Published: 24 January 2003
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Abstract
Marangoni effect accompanied with heat and mass transport processes has important influence on chemical engineering ,material engineering ,thermal engineering and other fields .it is also an ideal problem in nonlinear science .The experimental and theoretical studies on Marangoni effect can not only promote the understanding of miocrocosmic mechanism of heat and mass transfer ,but also improve the efficiency of transport processes .However ,up to the present ,one's knowledge on Marangoni effect is still insufficient to meet the need of both theory and practice .Recently ,the research in this area is very active .This paper reviews the experimental and theoretical studies on Marangoni effect.
Progress in Solid-State NMR Strudies of Electrode Materials for Lithium Ion Batteries
Zhang Zhongru,Yang Yang**,Liu Hansan
2003, 15 (01): 18- |
Published: 24 January 2003
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Abstract
Solid-state NMR is the effective technique for the study of local structural changes and chemical environment around the atoms which monitor atomic environments by varying adjacent metal or carbon content.Based on the changes of the 6Li,7Li NMR spectrum,the coordinating condition of lithium with the neighbor metal atoms and the structural changes of the materials during the charge/discharge cycle can be clearly identified.The developments in the micro-structural analysis of the electrode materials and mechanistic study of Li~+intercalation into a various of materials of materials by using solid NMR techniques were reviewed.
Study on Flow Profile of Preparative Liquid Chromatography
Ma Jiping1,2, Guan Yafeng1**
2003, 15 (01): 25- |
Published: 24 January 2003
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Abstract
The methods of studying folw profile of preparative chromatography were summarized .The factors affecting flow profile were reviewed and commented the technique of packing column ,the design of column head ,the shape of columns ,temperature and sample viscosity .
Capillary Electrophoesis Immunoassay
Mi Jianqiu,Zhang Xinxiang**,Chang Wenbao
2003, 15 (01): 31- |
Published: 24 January 2003
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Abstract
As a new immuno analytical method,capillary electrophoresis has its superiority comparing with traditional immunoassay methods.The recent development and the trends of capillary immunoassay are discussed.
Separation and Analysis of Alkylbenzene Sulfonate Surfactants by HPLC and hpce
Xiao Xiaohua,Liu Xia,Jiang Shengxiang**
2003, 15 (01): 41- |
Published: 24 January 2003
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Abstract
Alkylbenzene sulfonates (ABS) is widely used in many fields as anionic surfactants. With the author's latest research results, the present status and perspectives of its application in separating and analyzing ABS by HPLC and HPCE were reviewed.
C2+ Hydrocarbons Synthesis fromCO2 and H2 over Composite Catalysts
BAI Rongxian,Tan Yisheng**,Han Yizhuo
2003, 15 (01): 47- |
Published: 24 January 2003
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Abstract
The developmet of several composite catalyst systems of C2+ hydrocarbons synthesis from carbon dioxide and hydrogen is reviewed. The catalytic activity,selectivity of composite catalysts and the effects on C2+hydrocarbons synthesis are compared and evaluated. The effects of composite catalysts on C4+ hydrocarbon production and the distribution of products are emphasized and the possible reaction pathways are described in brief.
Catalytic Oxidation of Benzene to Phenol by FeZSM-5/N2O
Ji Dong,Ren Tong,Zhang Xiaoming,Suo Jishuan*,Ding Yong
2003, 15 (01): 51- |
Published: 24 January 2003
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Abstract
One step oxidation of benzene to phenol has been a challenging subject in organic synthesis.In this review,the focus is on the recent advances in gas-phase catalytic oxidation over zeolites using nitrous oxide as oxidant.The remarkbleness of this catalyst system lies in catalytic α-oxygen that is got from N2O decomposed over zeolites.The specific structure of Fe-containing active sites and the mechanism of the reaction were considered. This process of one step oxidation of phenol over FeZSM-5/N2O seems to be quite promising and promotes the development of new ecologically safe technologies for organic synthesis.
New Type Late Transition Metal Catalysts for Olefin Polymerization ——Nickel-based Olefin Polymerization Catalysts
Shen Haoyu,Jin Guoxin**
2003, 15 (01): 60- |
Published: 24 January 2003
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Abstract
Nickel-baded olefin polymerization catalysts are new-type catalysts ,which have been attracted much attention in recent years .Nickel-based catalysts possess high catalytic activity for olefin polymerization ,with single active center and wonderful molecular molecular tailoring properties .in the present review ,the discovery ,development ,the polymerization characteristics and thde most significant studies on the nickel-based olefin polymerization catalysts are reported .
Separation and deter mination of vitelllogenin and lts Application as a biomarker for the screening of environmental endocrine disrupting chemicals
Zhou Qingxiang,Jiang Guibin**
2003, 15 (01): 67- |
Published: 24 January 2003
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Abstract
Environmental endocrine disruptors have directly threaten on the existing of wildife and health of human beings .The study on the mechanisms and screening methods of which has been the hot topics in screening of environmental endocrine disrupting chemicals .This paper reviewed the advances of separation and mensuration of vitellogenin and its usage in screening environmental endocrine disrupting chemicals in order to offer suggestions for establishing more efficient methods for isolation and measurment ,as well as developing new technology new technology of screening of the environmental endocrine disrupting chemicals .
Advances in Catalytic Generation of Hydrogen from Ethanol
Wang Weiping,Lǚ Gongxuan**
2003, 15 (01): 74- |
Published: 24 January 2003
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Abstract
Hydrogen is one of the clean fuels in the future .The development of fuel cell ,especially fuel cell car ,has resulted in an extensive attention to investigation of hydrogen generation from organics ,such as methanol and ethanol ,catalytic generation of .The recent advances in catalytic hydrogen generation from ethanol have been reviewed in this paper .
Evaluation Results of National Science Fund for Distinguished Young Scholars and Joint Research Fund for Young Scholars in Hong Kong and Abroad
2003, 15 (01): 79- |
Published: 24 January 2003
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Abstract