Process for preparing carbon nano fiber knitting macro-particles containing high active nickel catalyst

Abstract

The present invention discloses a preparation process of woven nano carbon fiber macro particle containing high activity nickel catalyst for industrial application. The preparation process includes the following steps: preparing nitrate solution with Ni, Cu and Al ions of 0.4-1 M concentration; heating the solution to 55-65 deg.c and dropping 1 M concentration Na2CO3 solution; filtering and washing the precipitate with deionized water in 55-65 deg.c for 2-8 times; drying the precipitate at 120 deg.c for 5 hr; crushing the precipitate, incinerating at 350-550 deg.c and reduction in reactor; introducing methane for reaction at 450-750 deg.c. The particle thus obtained has high mechanical strength, high conducting capacity and excellent antioxidant ability.

Description

technical field

[0001] The invention relates to the field of catalysis, and more specifically relates to a preparation method of carbon nanofiber weaving macroscopic porous particles. Background technique

[0002] In the field of catalysis, traditional activated carbon is widely used as the carrier of noble metal catalysts (Pt, Pd and Rh, etc.) in the production of dyes, pigments and pharmaceutical intermediates. The loaded precious metal is lost with the material, resulting in great waste.

[0003] Carbon nanofibers and nanotubes are new carbon materials with good mechanical strength, high degree of graphitization, excellent electrical conductivity and oxidation resistance, and overcome the shortcomings of activated carbon as a carrier. High activity or high selectivity. In addition, it has a good adsorption effect on some gases, such as NO, CO and organic substances, such as alcohols, hydrocarbons and phenols. These carbon materials are ...

Images