Journal
ENERGIES
Volume 12, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/en12234545
Keywords
graphene; reduced graphene oxide (rGO); nanofluids; thermal properties; heat transfer fluids; electrochemical energy storage; electroactive nanofluids
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Funding
- Severo Ochoa Program (MINECO) [SEV-2017-0706]
- CERCA Programme/Generalitat de Catalunya
- Spanish Ministry (MCIU/AEI/FEDER, UE) [MAT2015-68394-R, RTI2018-099826-B-I00]
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Here, we describe selected work on the development and study of nanofluids based on graphene and reduced graphene oxide both in aqueous and organic electrolytes. A thorough study of thermal properties of graphene in amide organic solvents (N,N-dimethylformamide, N,N-dimethylacetamide, and N-methyl-2-pyrrolidone) showed a substantial increase of thermal conductivity and specific heat upon graphene integration in those solvents. In addition to these thermal studies, our group has also pioneered a distinct line of work on electroactive nanofluids for energy storage. In this case, reduced graphene oxide (rGO) nanofluids in aqueous electrolytes were studied and characterized by cyclic voltammetry and charge-discharge cycles (i.e., in new flow cells). In addition, hybrid configurations (both hybrid nanofluid materials and hybrid cells combining faradaic and capacitive activities) were studied and are summarized here.
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