Nanocomposite Hydrogels with Temperature Response for Capacitive Energy Storage
Por:
García-Torres JM, Colombi, S, Mahamed, I, Sylla, D, Arnau, M, Sans, J, Ginebra MP and Aleman, C
Publicada:
1 abr 2023
Ahead of Print:
1 abr 2023
Resumen:
Functional hydrogels are three-dimensional polymeric networks with
potential applicability in the field of wearable electronics. However,
hydrogels are often used to develop devices with only one functionality.
In this work, a multifunctional hydrogel consisting of
poly(3,4-ethylenedioxythiophene) (PEDOT), alginate (Alg), carbon
nano-particles (CNPs), and manganese oxide has been manufactured for
devices that can simultaneously store energy (supercapacitor) and sense
temperature. The Alg and PEDOT interpenetration allows for obtaining a
flexible and electrically conductive hydrogel with an open and
interconnected porous structure. The incorporation of CNPs improves
electrical conductivity and confers synergies with manganese oxide,
which provide energy storage capability. Furthermore, the resistance of
the hydrogel varies linearly with the temperature, this behavior being
observed consistently and without hysteresis throughout consecutive
heating and cooling cycles. Thus, the PEDOT/Alg/CNP/MnO2 hydrogel shows
good capacitance (42 mF cm-2), capacitance retention (87%), and good
temperature sensitivity (-1.05% degrees C-1).
Filiaciones:
García-Torres JM:
Univ Politecn Catalunya UPC, Dept Mat Sci & Engn, Biomat Biomech & Tissue Engn Grp, Barcelona 08019, Spain
Univ Politecn Catalunya UPC, Res Ctr Biomed Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Inst Recerca St Joan Deu, Barcelona 08034, Spain
Colombi, S:
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Dept Engn Quim, EEBE, Barcelona 08019, Spain
Mahamed, I:
Univ Politecn Catalunya UPC, Dept Mat Sci & Engn, Biomat Biomech & Tissue Engn Grp, Barcelona 08019, Spain
Univ Politecn Catalunya UPC, Res Ctr Biomed Engn, Barcelona 08019, Spain
Sylla, D:
IREC Catalonia Inst Energy Res, Sant Adria De Besos 08930, Spain
Arnau, M:
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Dept Engn Quim, EEBE, Barcelona 08019, Spain
Sans, J:
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Dept Engn Quim, EEBE, Barcelona 08019, Spain
Ginebra MP:
Univ Politecn Catalunya UPC, Dept Mat Sci & Engn, Biomat Biomech & Tissue Engn Grp, Barcelona 08019, Spain
Univ Politecn Catalunya UPC, Res Ctr Biomed Engn, Barcelona 08019, Spain
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Barcelona Inst Sci & Technol BIST, Inst Bioengn Catalonia IBEC, Barcelona 08028, Spain
Aleman, C:
Univ Politecn Cataluna, Barcelona Res Ctr Multiscale Sci & Engn, Barcelona 08019, Spain
Barcelona Inst Sci & Technol BIST, Inst Bioengn Catalonia IBEC, Barcelona 08028, Spain
Univ Politecn Cataluna, Dept Engn Quim, EEBE, Barcelona 08019, Spain
Open Access
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