Nanocomposite Hydrogels with Temperature Response for Capacitive Energy Storage
| Autor: | Jose Garcia-Torres, Samuele Colombi, Ikraan Mahamed, Dioulde Sylla, Marc Arnau, Jordi Sans, Maria-Pau Ginebra, Carlos Alemán |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. Doctorat en Polímers i Biopolímers, Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. BBT - Grup de recerca en Biomaterials, Biomecànica i Enginyeria de Teixits, Universitat Politècnica de Catalunya. IMEM-BRT- Innovation in Materials and Molecular Engineering - Biomaterials for Regenerative Therapies |
| Rok vydání: | 2023 |
| Předmět: |
Carbon nanoparticles
Supercapacitor Nanotecnologia Temperature sensor Alginate Energy Engineering and Power Technology Enginyeria química [Àrees temàtiques de la UPC] Materials biomèdics Conductive hydrogel Materials Chemistry Electrochemistry Nanotechnology Chemical Engineering (miscellaneous) 4-ethylenedioxythiophene) Electrical and Electronic Engineering Biomedical materials Manganese oxide poly(3 |
| Zdroj: | ACS Applied Energy Materials. 6:4487-4495 |
| ISSN: | 2574-0962 |
| Popis: | 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 nanoparticles (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% °C–1). |
| Databáze: | OpenAIRE |
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