▎ 摘　　要

NOVELTY - High intensity orderly arranged porous graphene fiber is claimed. The preparation of porous graphene fiber comprises: (i) reacting e.g. graphite and sulfuric acid, cooling, diluting by deionized water, filtering, washing, and naturally drying; (ii) stirring intercalated graphite, magnesium sulfate and potassium permanganate, adding deionized water and hydrogen peroxide, and drying; (iii) ultrasonically treating graphite oxide; (iv) extruding graphene oxide spinning liquid crystal sol, condensing, and performing freeze drying or critical freezing drying; and (v) reducing fiber, and drying. USE - The fiber is useful for loading various types of catalysts, and as a lightweight wire. ADVANTAGE - The fiber has low density, high mechanical property, and good flexibility. DETAILED DESCRIPTION - High intensity orderly arranged porous graphene fiber is claimed. The preparation of high intensity orderly arranged porous graphene fiber comprises: (i) reacting (in parts by wt.) graphite raw material (1), sulfuric acid (1-100), potassium sulfate (0.5-5) and phosphorus pentoxide (0.5-5) for 1-10 hours at 25-100 degrees C, cooling to room temperature, diluting by using deionized water, filtering by a filter film, washing with deionized water till the solution is neutral, and naturally drying for 10-50 hours to obtain an intercalated graphite; (ii) stirring (in parts by wt.) intercalated graphite (1), magnesium sulfate (1-100) and potassium permanganate (0.5-10) for 0.1-10 hours at -10 degrees C to 50 degrees C, adding (in parts by wt.) deionized water (10-2000) and hydrogen peroxide (0.1-10), and reacting for 0.1-10 hours, filtering by the filter film, repeatedly washing by using deionized water till the solution is neutral, and naturally drying to obtain graphite oxide; (iii) dissolving graphite oxide in water (5-100 parts by wt.), and ultrasonically treating at 0-50 KHz for 0.1-10 hours to obtain a graphene oxide spinning liquid crystal sol; (iv) extruding the obtained graphene oxide spinning liquid crystal sol in liquid nitrogen at a speed of 1-100 ml/hour, where the diameter of a spinning capillary is 50-500 mu m, allowing to stand for 50 seconds, condensing, then carrying out freeze drying or critical freezing drying for 2-40 hours, and finally obtaining the orderly arranged porous graphene fiber; and (v) reducing the graphene oxide fiber of the step (iv) with a reducing agent for 0.1-100 hours, washing, and drying to obtain the product,.