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Применить Всего найдено 2. Отображено 2.
04-07-2023 дата публикации

Iron-cobalt alloy nitrogen-doped carbon catalyst with lamellar structure and preparation method of iron-cobalt alloy nitrogen-doped carbon catalyst

Номер: CN116371440A
Автор: LI ZIHAN, ZHANG WUXIANG, WANG QING, LI MIAOQING, GONG ZHANGQIN, YANG FU, YUAN SAISAI, YU CHAO
Принадлежит:

The invention discloses a FeCo-coated NC catalyst with a lamellar structure and a preparation method thereof, the catalyst is formed by uniformly embedding FeCo alloy with the particle size of 2-10nm into strip-shaped lamellar structure nitrogen-doped carbon fiber with the length of 2-20mu m, and the catalyst comprises the following components in percentage by mass: 10-20% of Fe, 50-70% of Co, 10-25% of C and 1-5% of N. The preparation method comprises the following steps: (1) preparing a precursor through mutual coordination and coordination of Co, Fe and 2-methylimidazole in N, N-dimethylformamide; (2) introducing polyacrylonitrile in situ as a phase inversion coating agent; (3) soaking a fibrous material in the precursor and drying; and (4) converting the precursor into the FeCo-coated NC catalyst with the lamellar structure under the atmosphere of N2 by virtue of the confinement pyrolysis action of the PAN coating layer by utilizing a thermal driving method. The catalytic degradation ...

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Номер записи: 1
23-06-2023 дата публикации

Flaky photocatalyst with completely separated different surfaces as well as preparation method and application of flaky photocatalyst

Номер: CN116272950A
Автор: YUAN SAISAI, DONG YING, CHEN CHUANXIANG, ZHANG WUXIANG
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The invention discloses a flaky photocatalyst with different surfaces completely separated and a preparation method and application thereof.The photocatalyst is composed of a cerium element, an oxygen element, a carbon element and a nitrogen element, the mass ratio of the cerium element to the oxygen element is 1: (1.5-2.5), the carbon element and the nitrogen element are respectively smaller than 0.5 wt% of the total mass, the photocatalyst is in a flaky shape, one surface of the photocatalyst is rough, and the other surface of the photocatalyst is smooth. The two surfaces are completely separated back to back. The photocatalyst disclosed by the invention is simple and convenient in preparation material, environment-friendly and simple in preparation method. The obtained sheet-shaped morphology increases the specific surface area, increases the reaction active sites, and improves the performance of hydrogen preparation through water photolysis.

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Номер записи: 2