title: Mixed 1T-2H Phase MoS2/Reduced Graphene Oxide as Active Electrode for Enhanced Supercapacitive Performance.
abstract: A hybrid aerogel, composed of MoS2sheets of 1T (distorted octahedral) and 2H (trigonal prismatic) phases, finely mixed with few layers of reduced graphene oxide (rGO) and obtained by means of a facile environment-friendly hydrothermal cosynthesis, is proposed as electrode material for supercapacitors. By electrochemical characterizations in three- and two-electrode configurations and symmetric planar devices, unique results have been obtained, with specific capacitance values up to 416 F g-1and a highly stable capacitance behavior over 50000 charge-discharge cycles. The in-depth morphological and structural characterizations through field emission scanning electron microscopy, Raman, X-ray photoelectron spectroscopy, X-ray diffraction, Brunauer-Emmett-Teller, and transmission electron microscopy analysis provides the proofs of the unique assembly of such 3D structured matrix. The unpacked MoS2structure exhibits an excellent distribution of 1T and 2H phase sheets that are highly exposed to interaction with the electrolyte, and so available for surface/near-surface redox reactions, notwithstanding the quite low overall content of MoS2embedded in the reduced graphene oxide (rGO) matrix. A comparison with other "more conventional" hybrid rGO-MoX2electrochemically active materials, synthesized in the same conditions, is provided to support the outstanding behavior of the cosynthesized rGO-MoS2.
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.|Center for Sustainable Futures @PoliTo, Istituto Italiano di Tecnologia , C.so Trento 21, I-10129 Torino, Italy.
authors.forename: Arnaud
authors.initials: A
authors.lastname: Gigot
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Fontana
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Mara
authors.initials: M
authors.lastname: Serrapede
authors.affiliation: Center for Sustainable Futures @PoliTo, Istituto Italiano di Tecnologia , C.so Trento 21, I-10129 Torino, Italy.
authors.forename: Micaela
authors.initials: M
authors.lastname: Castellino
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Bianco
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Armandi
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Barbara
authors.initials: B
authors.lastname: Bonelli
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.|Center for Sustainable Futures @PoliTo, Istituto Italiano di Tecnologia , C.so Trento 21, I-10129 Torino, Italy.
authors.forename: Candido Fabrizio
authors.initials: CF
authors.lastname: Pirri
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Elena
authors.initials: E
authors.lastname: Tresso
authors.affiliation: Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, I-10129 Torino, Italy.
authors.forename: Paola
authors.initials: P
authors.lastname: Rivolo
keywords: 1T/2H phases; l-cysteine; molybdenum oxide; molybdenum sulfide; reduced graphene oxide aerogels; supercapacitor