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Tandem organic photovoltaic cells with photovoltaic efficiency exceeding 20% prepared by the Institute of Chemistry

 Time of Update: 2022-05-01

Tandem organic solar cells with tunnel junction efficiency of 20.
Preparation method and application of double quaternary ammonium salt

 Time of Update: 2022-01-04

Double quaternary ammonium salt>[Structural formula]>>[Preparation method] At present, there are mainly the following two
Physicochemical properties and preparation method of imidazoline quaternary ammonium salt corrosion inhibitor

 Time of Update: 2021-12-06

④ Zhang Guanghua prepared 2-aminoethyl heptadecenyl by reacting oleic acid (industrial product, the fraction obtained under reduced pressure 180～230℃/mmHg), diethylenetriamine and benzyl chloride in xylene solution Imidazoline quaternary ammonium salt .
Preparation method and application of chitosan quaternary ammonium salt

 Time of Update: 2021-11-04

Chitosan Quaternary Ammonium Salt>[Preparation method] In addition to directly dissolving in water, the chitosan quaternary ammonium salt can also be mixed with some organic solvents in any ratio, such as mixing 10% chitosan
Preparation method of modified urea-formaldehyde resin quaternary ammonium salt

 Time of Update: 2021-10-21

The molar ratio of formaldehyde, urea, and epichlorohydrin is 2:1 : 0.
Hebei Institute of Chemistry launches ideological and political collective lesson preparation activities for the Ministry of Education

 Time of Update: 2021-10-19

Recently, the National Vocational Education Food, Drug and Grain Courses Ideological and Political Collective Preparatory Activity organized by the Ministry of Education was held in Hebei Chemical and Pharmaceutical Vocational and Technical College.
Preparation and properties of halogen acid, halogen acid and their salts

 Time of Update: 2021-06-18

8HC1O 3 =4HCIO 4 +2Cl 2 +3O 2 +2H 2 O4HBrO 3 =2Br 2 +5O 2 +2H 2 OThe thermal stability of halogen acid salt is higher than that of the corresponding acid, but it also decomposes when heated .
The preparation of a commonly used physiological salt solution.

 Time of Update: 2020-10-25

Appendix I The preparation of a commonly used physiological salt solution in vitro or estosome organs and tissues experiments should be carried out, the specimen should be as close to the environment in the body
The epoxy resin flame-retardant composite material with good light transmittance prepared by Qinghai Salt Lake Institute

 Time of Update: 2020-10-23

materials decreased significantly, with EP/5MBH composites being the most prominent, with a 30% to 50% decrease in thermal release rate peak (pHRR), smoke release rate peak (pSPR), CO release rate peak (pCOP), CO2 release rate peak (pCO2P), and fire
The epoxy resin flame-retardant composite material with good light transmittance prepared by Qinghai Salt Lake Institute

 Time of Update: 2020-10-23

materials decreased significantly, with EP/5MBH composites being the most prominent, with a 30% to 50% decrease in thermal release rate peak (pHRR), smoke release rate peak (pSPR), CO release rate peak (pCOP), CO2 release rate peak (pCO2P), and fire
Hu Jinsong, Institute of chemistry, Chinese Academy of Sciences, has made new progress

 Time of Update: 2019-05-27

In the experiment, high-density and stable monoatom dispersed m-nx catalyst can be obtained by mixing glucose solution with porous carbon carrier and metal salt precursor and heat treatment with melamine.
Green Chemistry: electrochemically initiated cyclization of ketone with 2-aminopyridine to prepare imidazo [1,2-a] pyridine

 Time of Update: 2019-03-25

Nitrogen heterocycles are the core structures of many drugs and functional materials, and their synthesis has been one of the hotspots in organic synthesis chemistry
Preparation of materials involved in supramolecular chemistry: graphene film

 Time of Update: 2018-12-30

Through π - π interaction and CH ·· π interaction, the author successfully inhibited the rotation of Ben GDY monomer (3), and then prepared high crystallinity graphene film (Fig. 1b).
Research group of song Yanlin, Institute of chemistry, Chinese Academy of Sciences and research

 Time of Update: 2018-11-09

Lead two-dimensional perovskite has been widely used in the field of solar cells due to its high environmental stability and high efficiency in inhibiting ion mobility
Angelw: Huang Yong research group, School of chemistry, Shenzhen Graduate School, Peking University

 Time of Update: 2018-05-07

Amide is the core functional group in synthetic chemistry

It not only mediates the construction of heterocyclic framework, but also widely exists in bioactive molecules
Green Chemistry: research team Ding Guqiao and he Peng from Shanghai Institute of Microsystems

 Time of Update: 2018-03-07

Graphene materials are widely used in many fields, such as lithium-ion batteries, sensors, energy storage materials, biomedicine and so on, because of their excellent physical
Sharpless and Dong Jiajia work together to open the new gate of click chemistry of sufex: the ever reactive sulfonylimidazolium salt

 Time of Update: 2018-01-04

Since 2001 Nobel Prize winner Karl Barry Sharpless put forward the concept of "click chemistry", click chemistry has been widely used in the fields of chemistry, chemistry, biology

Related Keywords

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