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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3. Отображено 3.
17-05-2018 дата публикации

MATERIAL COMPRISING PRECIOUS METAL ISOLATED ATOMS STABLE IN SOLUTION

Номер: WO2018085958A1
Автор: ZHANG, Zongchao, LIU, Kairui, MAO, Jingbo
Принадлежит:

A material comprising precious metal isolated atoms stable in a solution consists of precious metal isolated atoms and a protective agent. A block copolymer containing silicon-oxygen groups and polyether groups is used as the protective agent, so that the reduced-state precious metal isolated atoms stably exist. In the material preparation process, a water solution comprising a reducing agent can be used as a solvent, and the precious metal can account for any proportion in the protective agent by weight. By using the protective agent, generation of nano particles caused by accumulation of primary isolated atoms in a synthesis process is avoided. The reduced-state isolated atoms of the material are different from known metal nano particles; and the material can be used in the fields of energy materials, pharmaceutical synthesis, medical materials and catalyst preparation and other fields, and provides basic isolated atom materials for synthesis of homogeneous or heterogeneous metal clusters ...

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Номер записи: 1
17-05-2018 дата публикации

METHOD FOR PREPARING PRECIOUS METAL ISOLATED ATOMS IN SOLUTION, AND APPLICATIONS THEREOF

Номер: WO2018085959A1
Автор: ZHANG, Zongchao, LIU, Kairui, MAO, Jingbo
Принадлежит:

A method for preparing precious metal isolated atoms in a solution, and applications thereof. The method comprises: fully mixing a protective agent, a precious metal compound, a reducing agent and a solvent, and carrying out a reaction in a temperature to obtain precious metal isolated atoms, so as to obtain the precious metal isolated atoms capable of stably existing in a solution. The solution containing the precious metal isolated atoms is loaded to a solid medium by means of a dipping method, so that a new material comprising the precious metal isolated atoms and the solid medium can be formed. Alloy materials, catalysts and the like can be prepared by using a single-atom solution. Reduced-state single atoms in a solution phase are prepared. Compared with the synthesis of a metal material in a solution phase in the conventional art, generation of metal nano particles is avoided, and a reduced-state single-atom solution existing in the form of single metal atoms is obtained. Compared ...

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Номер записи: 2
21-07-2023 дата публикации

Method for preparing aromatic compound

Номер: CN116462575A
Автор: MAO JINGBO, ZHOU JINXIA
Принадлежит:

The invention relates to the field of catalytic material preparation and organic synthesis, discloses a method for preparing aromatic compounds, and particularly relates to a method for synthesizing aromatic compounds such as benzene and phenol through 2, 6-dimethoxyphenol. The Pt-coated Fe/SiO2 catalyst is used for hydrodeoxygenation treatment on 2, 6-dimethoxyphenol for the first time, and synthesis of the final product aromatic compound is realized. According to the method provided by the invention, the product is single, and the Pt-coated Fe/SiO2 catalyst is used, so that the selectivity of aromatic compounds in the final reaction product is greater than 80%. The reaction temperature is controlled to be 473 to 623K, and the 2, 6-dimethoxyphenol can be quickly and completely converted.

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Номер записи: 3