High Performance Poly(viologen)-Graphene Nanocomposite Battery Materials with Puff Paste Architecture
DC Element | Wert | Sprache |
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dc.contributor.author | Beladi-Mousavi, Seyyed Mohsen | |
dc.contributor.author | Sadaf, Shamaila | |
dc.contributor.author | Mahmood, Arsalan Mado | |
dc.contributor.author | Walder, Lorenz | |
dc.date.accessioned | 2021-12-23T15:57:38Z | - |
dc.date.available | 2021-12-23T15:57:38Z | - |
dc.date.issued | 2017 | |
dc.identifier.issn | 19360851 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/3043 | - |
dc.description.abstract | Four linear poly(viologens) (PV1, PV2: phenylic, PV3: benzylic, and PV4: aliphatic) in tight molecular contact with reduced graphene oxide (rGO), that is, PV@rGO, were prepared and used as anodic battery materials. These composites show exceptionally high, areal, volumetric, and current densities, for example, PV1@rGO composites (with 15 wt % rGO, corresponding to 137 mAh g(-1)) show 13.3 mAh cm(-2) at 460 pm and 288 mAh cm(-3) with 98% Coulombic efficiency at current densities up to 1000 A g(-1), better than any reported organic materials. These remarkable performances are based on (i) molecular self-assembling of individual GO sheets yielding colloidal PV@GO and (ii) efficient GO/rGO transformation electrocatalyzed by PVs. Ion breathing during charging/discharging was studied by electrochemical quartz crystal microbalance and electrochemical atomic force microscopy revealing an absolute reversible and strongly anisotropic thickness oscillation of PV1@rGO at a right angle to the macroscopic current collector. It is proposed that such stress-free breathing is the key property for good cyclability of the battery material. The anisotropy is related to a puff paste architecture of rGO sheets parallel to the macroscopic current collector. A thin graphite sheet electrode with an areal capacity of 1.23 mAh cm(-2) is stable over 200 bending cycles, making the material applicable for wearable electronics. The polymer acts as a lubricant between the rGO layers if shearing forces are active. | |
dc.language.iso | en | |
dc.publisher | AMER CHEMICAL SOC | |
dc.relation.ispartof | ACS NANO | |
dc.subject | ACTIVE MATERIALS | |
dc.subject | AQUEOUS-ELECTROLYTE | |
dc.subject | battery | |
dc.subject | Chemistry | |
dc.subject | Chemistry, Multidisciplinary | |
dc.subject | Chemistry, Physical | |
dc.subject | composites | |
dc.subject | electrochemical AFM | |
dc.subject | ENERGY-STORAGE | |
dc.subject | eQCM | |
dc.subject | graphene | |
dc.subject | graphene oxide | |
dc.subject | LITHIUM-ION BATTERIES | |
dc.subject | Materials Science | |
dc.subject | Materials Science, Multidisciplinary | |
dc.subject | Nanoscience & Nanotechnology | |
dc.subject | ORGANIC ELECTRODE | |
dc.subject | POLYIMIDE ANODE | |
dc.subject | QUARTZ-CRYSTAL MICROBALANCE | |
dc.subject | RADICAL POLYMER-CATHODE | |
dc.subject | RECHARGEABLE DEVICE | |
dc.subject | Science & Technology - Other Topics | |
dc.subject | STORAGE MATERIAL | |
dc.subject | viologen | |
dc.title | High Performance Poly(viologen)-Graphene Nanocomposite Battery Materials with Puff Paste Architecture | |
dc.type | journal article | |
dc.identifier.doi | 10.1021/acsnano.7b02310 | |
dc.identifier.isi | ISI:000411918200020 | |
dc.description.volume | 11 | |
dc.description.issue | 9 | |
dc.description.startpage | 8730 | |
dc.description.endpage | 8740 | |
dc.contributor.orcid | 0000-0002-5497-034X | |
dc.contributor.orcid | 0000-0003-2861-0348 | |
dc.contributor.researcherid | AAM-6820-2020 | |
dc.contributor.researcherid | K-8708-2018 | |
dc.identifier.eissn | 1936086X | |
dc.publisher.place | 1155 16TH ST, NW, WASHINGTON, DC 20036 USA | |
dcterms.isPartOf.abbreviation | ACS Nano | |
crisitem.author.dept | Institut für Chemie neuer Materialien | - |
crisitem.author.deptid | institute11 | - |
crisitem.author.orcid | 0000-0002-5497-034X | - |
crisitem.author.parentorg | FB 05 - Biologie/Chemie | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.netid | WaLo966 | - |
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geprüft am 07.06.2024