Ultralight covalent organic framework/graphene aerogels with hierarchical porosity
| dc.contributor.author | Li, Changxia | |
| dc.contributor.author | Yang, Jin | |
| dc.contributor.author | Pachfule, Pradip | |
| dc.contributor.author | Li, Shuang | |
| dc.contributor.author | Ye, Meng-Yang | |
| dc.contributor.author | Schmidt, Johannes | |
| dc.contributor.author | Thomas, Arne | |
| dc.date.accessioned | 2021-03-04T08:45:46Z | |
| dc.date.available | 2021-03-04T08:45:46Z | |
| dc.date.issued | 2020-09-18 | |
| dc.description.abstract | The fabrication of macroscopic objects from covalent organic frameworks (COFs) is challenging but of great significance to fully exploit their chemical functionality and porosity. Herein, COF/reduced graphene oxide (rGO) aerogels synthesized by a hydrothermal approach are presented. The COFs grow in situ along the surface of the 2D graphene sheets, which are stacked in a 3D fashion, forming an ultralight aerogel with a hierarchical porous structure after freeze-drying, which can be compressed and expanded several times without breaking. The COF/rGO aerogels show excellent absorption capacity (uptake of >200 g organic solvent/g aerogel), which can be used for removal of various organic liquids from water. Moreover, as active material of supercapacitor devices, the aerogel delivers a high capacitance of 269 F g −1 at 0.5 A g −1 and cycling stability over 5000 cycles. Macroscopic architectures of covalent organic frameworks (COF) allow to fully exploit their chemical functionality and porosity but achieving three-dimensional hierarchical porous COF architectures remains challenging. Here, the authors present a COF/reduced graphene oxide aerogel which is synthesized by growing COF during a hydrothermal process along the surface of graphene sheets. | en |
| dc.description.sponsorship | TU Berlin, Open-Access-Mittel – 2020 | en |
| dc.description.sponsorship | DFG, 390540038, EXC 2008: Unifying Systems in Catalysis "UniSysCat" | en |
| dc.identifier.eissn | 2041-1723 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/12709 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-11509 | |
| dc.language.iso | en | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject.ddc | 540 Chemie und zugeordnete Wissenschaften | en |
| dc.subject.other | mechanical and structural properties and devices | en |
| dc.subject.other | self-assembly | en |
| dc.subject.other | synthesis | en |
| dc.subject.other | processing | en |
| dc.subject.other | framework/graphene aerogels | en |
| dc.title | Ultralight covalent organic framework/graphene aerogels with hierarchical porosity | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.articlenumber | 4712 | en |
| dcterms.bibliographicCitation.doi | 10.1038/s41467-020-18427-3 | en |
| dcterms.bibliographicCitation.issue | 1 | en |
| dcterms.bibliographicCitation.journaltitle | Nature Communications | en |
| dcterms.bibliographicCitation.originalpublishername | SpringerNature | en |
| dcterms.bibliographicCitation.originalpublisherplace | London [u.a.] | en |
| dcterms.bibliographicCitation.volume | 11 | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Funktionsmaterialien | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.group | FG Funktionsmaterialien | de |
| tub.affiliation.institute | Inst. Chemie | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |
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