▎ 摘　　要

NOVELTY - Preparation of low density and pressure resistance titanium carbide MXene/reduced graphene oxide/gold-copper nanoparticle aerogel involves (s1) adding copper(II) chloride dihydrate solution, tetrachloroauric(III) acid trihydrate solution, hexadecylamine and glucose aqueous solution to deionized water with magnetic stirring, heating in oil bath, centrifuging to obtain a gold-copper nanoparticle powder (P1), (s2) dissolving graphene and MXene in deionized water, (s3) adding the powder (P1) to the MXene/graphene oxide mixed solution to obtain a MXene/graphene oxide/gold-copper nanoparticle mixed solution (S), (s4) adding ascorbic acid to the solution (S), stirring to obtain a MXene/graphene oxide/gold-copper nanoparticle aerogel precursor (P2), (s5) placing the precursor (P2) on the mold, heating, fixing on copper plate, soaking in liquid nitrogen, freezing, heating, freeze-drying, and thermally annealing at 300℃ in the tubular furnace under the nitrogen. USE - Preparation of low-density and pressure-resistant titanium carbide MXene/reduced graphene oxide/gold-copper nanoparticle aerogel used for electrothermal and photothermal device (claimed) e.g. heater. ADVANTAGE - The method enables simple preparation of titanium carbide MXene/reduced graphene oxide/gold-copper nanoparticle aerogel with low density, excellent pressure resistance and electrothermal conversion performance, and high photothermal conversion performance. DETAILED DESCRIPTION - Preparation of low-density and pressure-resistant titanium carbide MXene/reduced graphene oxide/gold-copper nanoparticle (Ti3C2TxMXene/RGO/AuCu NPs) aerogel involves (s1) adding copper(II) chloride dihydrate solution, tetrachloroauric(III) acid trihydrate solution, hexadecylamine and glucose aqueous solution to deionized water with magnetic stirring, heating in oil bath, centrifuging to obtain a gold-copper nanoparticle powder (P1), (s2) dissolving graphene and MXene in deionized water to obtain a MXene/graphene oxide mixed solution, (s3) adding the powder (P1) to the MXene/graphene oxide mixed solution to obtain a MXene/graphene oxide/gold-copper nanoparticle mixed solution (S), (s4) adding ascorbic acid to the mixed solution (S), magnetically stirring for 1 hour under ice bath to obtain a MXene/graphene oxide/gold-copper nanoparticle aerogel precursor (P2), (s5) placing the precursor (P2) on a mold, heating in oil bath at 90℃ for 6 minutes, fixing on copper plate, soaking the bottom of the copper plate in liquid nitrogen, freezing, heating the mixture to room temperature, heating in oil bath at 90℃ for 10 minutes, freeze-drying, and thermally annealing 300℃ in a tubular furnace under nitrogen condition. An INDEPENDENT CLAIM is included for the MXene/reduced graphene oxide/gold-copper nanoparticle aerogel.