DataVXACS Applied Energy MaterialsPaper
journal article·2023-04-24Open access

Nanocomposite Hydrogels with Temperature Response for Capacitive Energy Storage

Jose Garcia-Torres, Samuele Colombi, Ikraan Mahamed, Dioulde Sylla, Marc Arnau, Jordi Sans, Maria-Pau Ginebra, Carlos Alemán

ACS Applied Energy Materials· Volume 6· Issue 8
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Source abstract

Abstract

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/MnO 2 hydrogel shows good capacitance (42 mF cm –2 ), capacitance retention (87%), and good temperature sensitivity (−1.05% °C –1 ).
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storagePolymersNanomaterials

OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering and Research Center for Biomedical Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain

Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, 08019 Barcelona, Spain

Institut de Recerca Sant Joan de Déu, 08034 Barcelona, Spain

Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany, 10-14, 08019 Barcelona, Spain

IREC-Catalonia Institute for Energy Research, 08930 Sant Adrià de Besòs, Spain

Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10-12, 08028 Barcelona, Spain

Funding

Ministerio de Ciencia, Innovación y Universidades · Generalitat de Catalunya · Agència de Gestió d'Ajuts Universitaris i de Recerca

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