Web of Science: 10 citations, Scopus: 12 citations, Google Scholar: citations,
Electroactive graphene nanofluids for fast energy storage
Dubal, Deepak P. (Institut Català de Nanociència i Nanotecnologia)
Gómez Romero, Pedro (Institut Català de Nanociència i Nanotecnologia)

Date: 2016
Abstract: Graphenes have been extensively studied as electrode materials for energy storage in supercapacitors and batteries, but always as solid electrodes. The conception and development of graphene electroactive nanofluids (ENFs) reported here for the first time provides a novel way to 'form' graphene electrodes and demonstrates proof of concept for the use of these liquid electrodes for energy storage in novel flow cells. Astabilized dispersion of reduced graphene oxide (rGO) in aqueous sulfuric acid solution was shown to have capacitive energy storage capabilities parallel to those of solid electrode supercapacitors (169 F g(rGO)) but working up to much faster rates (from 1mV s to the highest scan rate of 10 V s) in nanofluids with 0. 025, 0. 1 and 0. 4 wt% rGO, featuring viscosities very close to that of water, thus being perfectly suitable for scalable flow cells. Our results provide proof of concept for this technology and include preliminary flow cell performance of rGO nanofluids under static and continuous flow conditions. Graphene nanofluids effectively behave as true liquid electrodes with very fast capacitive storage mechanism and herald the application not only of graphenes but also other 2D materials like MoS in nanofluids for energy storage and beyond.
Note: Altres ajuts: Programa Beatriu de Pinós (BP-DGR-2013)
Note: Número d'acord de subvenció MINECO/SEV-2013-0295
Note: Número d'acord de subvenció AGAUR/2014/SGR-1505
Note: Número d'acord de subvenció MINECO/MAT2015-68394-R
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès.
Document: article ; recerca ; publishedVersion
Subject: Electroactive nanofluids ; Energy storage ; Flow cells ; Graphene nanofluids ; Nanoelectrofuels ; Reduced graphene oxide sols ; Supercapacitors
Published in: 2D Materials, Vol. 3, Núm. 3 (September 2016) , art. 31004, ISSN 2053-1583

DOI: 10.1088/2053-1583/3/3/031004


6 p, 2.6 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2019-06-03, last modified 2019-11-05



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