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In this regard, for the first time, the synthesis of 3D graphene aerogels is reported by using a rapid, easy, cost\u2010effective, and scalable at industrial level methodology. These aerogels integrate the intrinsic properties of graphene with a high pore volume. To achieve this ultraporous graphene network, resorcinol\/formaldehyde polymer with controllable porosity is employed as a binder and a cross\u2010linker material, and a graphene oxide solution provides the graphene building blocks. Two series of materials with and without catalyst for resorcinol\/formaldehyde reaction and with different synthesis conditions and graphene contents are studied. The resulting graphene aerogels present low density, large macroporosity, and electrical conductivity values as high as 852 S m<jats:sup>\u22121<\/jats:sup>, with 97.58% of porosity, which is the highest value of electrical conductivity reported so far in the literature for ultralight\u2010weight graphene aerogels.<\/jats:p>","DOI":"10.1002\/smll.202103407","type":"journal-article","created":{"date-parts":[[2021,9,12]],"date-time":"2021-09-12T18:09:58Z","timestamp":1631470198000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":51,"title":["Ultralight\u2010Weight Graphene Aerogels with Extremely High Electrical Conductivity"],"prefix":"10.1002","volume":"17","author":[{"given":"Luc\u00eda","family":"dos Santos\u2010G\u00f3mez","sequence":"first","affiliation":[{"name":"Department of Physical and Analytical Chemistry Avda. 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