Progress in Chemistry

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Progress in Studies of CO2-Reforming of Methane to Synthesis Gas

Xu Zhanlin,Bi Yingli,Zhen Kaiji

Progress in Chemistry. 2000, 12(02): 121.

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Xu Zhanlin,Bi Yingli,Zhen Kaiji. Progress in Studies of CO2-Reforming of Methane to Synthesis Gas[J]. Progress in Chemistry, 2000, 12(02): 121-.

This paper reviews the CO₂-reforming of methane to synthesis gas, with more than 50 references. The progress on choice of catalyst, effect of support, effect of promoter, carbon deposition of catalyst and reforming reaction mechanism are discussed.
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Cycloaddition Reactions on Solid Phase Supports and Their Applications

Xu Jiaxi,Jiao Peng

Progress in Chemistry. 2000, 12(02): 131.

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Xu Jiaxi,Jiao Peng. Cycloaddition Reactions on Solid Phase Supports and Their Applications[J]. Progress in Chemistry, 2000, 12(02): 131-.

Solid phase organic syn thesis and combinato rial chemistry are novel methods developed in recent years to synthesize a lot of organic compounds quickly. This paper focuses on the cycloaddition reactions on solid phase supports and their applications in organic synthesis and mechanism research.
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Progress in the Graetzel-Type Photoelectrochemical Solar Cells

Qian Xinming,Bai Yubai^**,Li Tiejin,Tang Xinyi,Lü Honghui

Progress in Chemistry. 2000, 12(02): 141.

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Qian Xinming,Bai Yubai^**,Li Tiejin,Tang Xinyi,Lü Honghui. Progress in the Graetzel-Type Photoelectrochemical Solar Cells[J]. Progress in Chemistry, 2000, 12(02): 141-.

The progress of recent studies on the modification of nanocrystalline network semiconductor electrode, the properties of nanocrystalline network semiconductor electrode electrolyte interface and the kinetics of heterogeneous photo induced charge separation in the electrode electrolyte interface are summarized. The structure and operating principle of the Graetzeltype PEC as well as some opinions on further studies of the PEC are also presented.
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Behaviors of PCBs in Environment

Bi Xinhui,Xu Xiaobai^**

Progress in Chemistry. 2000, 12(02): 152.

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Bi Xinhui,Xu Xiaobai^**. Behaviors of PCBs in Environment[J]. Progress in Chemistry, 2000, 12(02): 152-.

The behaviors of PCBs in the environment were reviewed with respect to the present pollution status, analytical methods, transport and transfer,multimedia model and risk assessment. The further research on environmental behaviors, the fate of PCBs and enhancing risk assessment in order to decrease the influence of PCBs to ecosystem is needed.
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The Significance and Development Trend in Research of Plant Polyphenols

Song Lijiang,Di Ying,Shi Bi^**

Progress in Chemistry. 2000, 12(02): 161.

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Song Lijiang,Di Ying,Shi Bi^**. The Significance and Development Trend in Research of Plant Polyphenols[J]. Progress in Chemistry, 2000, 12(02): 161-.

Plant polyphenols (vegetable tannins),as one of the important natural products, widely exist in plant. They have been used in many traditional industries, such as leather making, oil drilling and wood adhesive for years. With the development of chemistry of plant polyphenols in recent thirty years, their chemical structures and properties are comprehensively revealed. P rogress and sign if icance of this research field have been summarized by analysis of the related literature abstracted in CA since 1967.Furthermore, the trends of development and key points for better utilization of plant polyphenols are discussed in detail.
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Renewed Interests in Difluoramino and Its Compounds

Feng Zengguo

Progress in Chemistry. 2000, 12(02): 171.

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Feng Zengguo. Renewed Interests in Difluoramino and Its Compounds[J]. Progress in Chemistry, 2000, 12(02): 171-.

Difluoramino is one of the most ideal groups in enhancing the energy density of energetic compounds. After many years of silence, research and development of the difluoramino group and its derivatives become active again. The substantial progress has been made in finding the new difluoramino compounds with low mechanical sensitivity and high thermostability. The main research now is focused on the polymerization of difluoramino substituted oxetane monomers, the preparation of neopentyl difluoramino nitrato plasticizers, and the molecular design and synthesis of cyclic N₂ nitramino geminal difluoramino oxidizers.
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The Application of Wavelet in Chemistry

Gao Zhiming,Li Jinghui,Gao Lirang,Zhu Xiuhui

Progress in Chemistry. 2000, 12(02): 179.

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Gao Zhiming,Li Jinghui,Gao Lirang,Zhu Xiuhui. The Application of Wavelet in Chemistry[J]. Progress in Chemistry, 2000, 12(02): 179-.

Wavelet has shown great applicability in many fields of science. This paper reviews the applications of wavelets and wavelet transforms in chemistry, such as signal compression and denoising, image processing, data set compression, the modeling of multivariate sets, process control, fault diagnosis, prediction, dynamic and fractals.153 references are listed. Special at tention is given to the application prospects of wavelet in chemomet rics.
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Use of Sodium Perborate in Organic Selective Oxidation

Xu Hong

Progress in Chemistry. 2000, 12(02): 192.

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Xu Hong. Use of Sodium Perborate in Organic Selective Oxidation[J]. Progress in Chemistry, 2000, 12(02): 192-.

Sodium perborate as a safe, cheap , mild, versatile and environmentally friendly oxidant has been widely used in organic synthesis. This paper reviews its application in the selective oxidation of functional groups and the controlled oxidation of the same functional group.
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Progress on CoMFA Research

Zhu Jie,Sheng Chunquan,Zhang Wannian

Progress in Chemistry. 2000, 12(02): 203.

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Zhu Jie,Sheng Chunquan,Zhang Wannian. Progress on CoMFA Research[J]. Progress in Chemistry, 2000, 12(02): 203-.

Comparative molecular field analysis (CoMFA ) is a relatively new 3D-QSAR method, which is used widely and successfully. But it has some defects in fitting rules, new fields, the selection of variables and data statistics. The recent improvements of the CoMFA method is reviewed in this paper, With these improvements, CoMFA will play a more important role in designing new drugs in future.
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Progress of the Simulation of Particle-Fluid Two-Phase Flow

Wang Wei,Li Youchu

Progress in Chemistry. 2000, 12(02): 208.

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Wang Wei,Li Youchu. Progress of the Simulation of Particle-Fluid Two-Phase Flow[J]. Progress in Chemistry, 2000, 12(02): 208-.

The characteristics and simulation methods of particle fluid two phase flow are introduced. The current situation and development of pseudo fluid model are discussed in details. The prospects of different modeling methods are presented.
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Advances of Collagen Chemistry Related to Chrome Tanning

Lin Wei,Mu Changdao,Zhang Mingrang

Progress in Chemistry. 2000, 12(02): 218.

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Lin Wei,Mu Changdao,Zhang Mingrang. Advances of Collagen Chemistry Related to Chrome Tanning[J]. Progress in Chemistry, 2000, 12(02): 218-.

The structure of type collagen which is related to leather manufacture is reviewed. The emphasis is on the use of computer model of collagen to study the cross link reaction during chrome tanning and the collagen modified for the high exhaustion of chrome. The advances and research trend of collagen chemistry are briefly summarized.
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Green Chemistry——One of the Important Frontiers in Chemistry

Liang Wenping,Tang Jin

Progress in Chemistry. 2000, 12(02): 228.

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Liang Wenping,Tang Jin. Green Chemistry——One of the Important Frontiers in Chemistry[J]. Progress in Chemistry, 2000, 12(02): 228-.
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A Grand Gathering for Discussing the Development of Theoretical Chemistry Facing the New Millennium

Liu Chunwan

Progress in Chemistry. 2000, 12(02): 230.

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Liu Chunwan. A Grand Gathering for Discussing the Development of Theoretical Chemistry Facing the New Millennium[J]. Progress in Chemistry, 2000, 12(02): 230-.

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