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Небесная энциклопедия

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 4. Отображено 4.
18-07-2023 дата публикации

Zinc-based composite powder material as well as preparation method and application thereof

Номер: CN116454221A
Автор: CAO HONG, LIU DONGSHU, YIN RUILIAN, LIU WENXIAN, SHI WENHUI, WU FANGFANG
Принадлежит:

The invention provides a zinc-based composite powder material as well as a preparation method and application thereof. The preparation method comprises the following steps: contacting zinc powder with an aqueous solution containing Cu < 2 + > to carry out replacement reaction, carrying out solid-liquid separation, washing the obtained solid to remove Zn < 2 + > on the surface, and drying to obtain the zinc-based composite powder material. The synthesis conditions are mild, the operation is simple, the cost is low, and batch or industrial production can be realized; the spherical frame type conductive shell layer with the high work function can induce uniform deposition of zinc ions on an electrode interface and can also improve structural corrosion of the surface of a zinc powder negative electrode, and the obtained zinc ion battery has excellent cycling stability and rate performance and can stably circulate for 1600 h under the conditions of 1 mA/cm <-2 > and 1 mAh/cm <-2 >.

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Номер записи: 1
11-08-2023 дата публикации

Sodium alginate-based dual-network aqueous battery electrolyte as well as preparation method and application thereof

Номер: CN116581399A
Автор: CAO HONG, YANG RONGCHANG, SHI WENHUI, LIU WENXIAN, WU FANGFANG, YIN RUILIAN
Принадлежит:

The invention provides a sodium alginate-based dual-network aqueous battery electrolyte as well as a preparation method and application thereof. The sodium alginate-based dual-network aqueous battery electrolyte is prepared by adsorbing an aqueous electrolyte with dual-network hydrogel, the double-network hydrogel comprises a first network structure and a second network structure, the first network structure is a network structure formed by crosslinking zinc ions and sodium alginate in an ionic bond form, and the second network structure is a network structure formed by crosslinking acrylic acid and derivatives thereof through covalent bonds. The double-network hydrogel is formed by sequentially cross-linking a first network structure and a second network structure. The sodium alginate-based dual-network aqueous battery electrolyte has good zinc ion transmission performance, can reduce the internal resistance of a battery and improve the cycling stability of the battery when being applied ...

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Номер записи: 2
07-04-2023 дата публикации

Bimetal alloy/nitride heterojunction structure catalyst and preparation method thereof

Номер: CN115928096A
Автор: CAO HONG, NIU XINXIN, LIU WENXIAN, WU FANGFANG, SHI WENHUI, YIN RUILIAN, ZHENG DONG
Принадлежит:

The invention relates to the technical field of nano materials, in particular to a bimetallic alloy/nitride heterojunction structure catalyst and a preparation method thereof.The bimetallic alloy/nitride heterojunction structure is obtained by conducting high-temperature nitridation and etching treatment on an MOF-derived trimetal organic framework; m1M2 is set to be metal in the bimetallic alloy/nitride heterojunction structure, the MOF derived bimetallic alloy/nitride template is set to be M1M2/MoN, and the bimetallic alloy-nitride heterojunction structure is set to be Etch-M1M2/MoN. The preparation process is simple, mild and universal, and has no special requirements on equipment; the bimetallic alloy/nitride prepared by the method is uniform in size, stable in structure and uniform in component distribution, and shows better three-function catalytic activity.

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Номер записи: 3
18-07-2023 дата публикации

MOF (Metal Organic Framework) membrane air positive electrode catalyst as well as preparation method and application thereof

Номер: CN116454297A
Автор: YIN RUILIAN, MA SULI, CAO HONG, LIU WENXIAN, SHI WENHUI, WU FANGFANG
Принадлежит:

The invention provides an MOF membrane air positive electrode catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: 1) carrying out hydrothermal reaction on a reaction solution containing Mo < 6 + >, Ni < 2 + >, Mn < 2 + > and an organic ligand, and carrying out solid-liquid separation to obtain a solid MnNiMo-MOF crystal powder; (2) under the protective atmosphere, the MnNiMo-MOF crystal powder is calcined, and a MnNi/MoO2 material is obtained; and 3) dispersing the MnNi/MoO2 material, a carbon nanotube, a surfactant and polyvinylidene fluoride in water, carrying out suction filtration to form a film, and calcining and carbonizing the film in a protective atmosphere to obtain the MOF film air positive electrode catalyst. The preparation process is simple and universal, has no special requirements on equipment, and can be used for large-scale industrial production; the MOF membrane air positive electrode catalyst is uniform ...

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Номер записи: 4