Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Tungsten Disulfide-Interfacing Nickel-Porphyrin For Photo-Enhanced Electrocatalytic Water Oxidation
Δημιουργός/Συγγραφέας:	Minadakis, Michail-Panagiotis Canton-Vitoria, Ruben Stangel, Christina [EL] Κλώντζας, Εμμανουήλ[EN] Klontzas, Emmanuel Arenal, Raul Hernández-Ferrer, Javier Benito, Ana M Maser, Wolfgang K [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos
Ημερομηνία:	2023-04-21
Γλώσσα:	Αγγλικά
ISSN:	1864-5631 1864-564X
DOI:	10.1002/cssc.202202322
Άλλο:	36629277
Περίληψη:	Covalent functionalization of tungsten disulfide (WS2 ) with photo- and electro-active nickel-porphyrin (NiP) is reported. Exfoliated WS2 interfacing NiP moieties with 1,2-dithiolane linkages is assayed in the oxygen evolution reaction under both dark and illuminated conditions. The hybrid material presented, WS2 -NiP, is fully characterized with complementary spectroscopic, microscopic, and thermal techniques. Standard yet advanced electrochemical techniques, such as linear sweep voltammetry, electrochemical impedance spectroscopy, and calculation of the electrochemically active surface area, are used to delineate the catalytic profile of WS2 -NiP. In-depth study of thin films with transient photocurrent and photovoltage response assays uncovers photo-enhanced electrocatalytic behavior. The observed photo-enhanced electrocatalytic activity of WS2 -NiP is attributed to the presence of Ni centers coordinated and stabilized by the N4 motifs of tetrapyrrole rings at the tethered porphyrin derivative chains, which work as photoreceptors. This pioneering work opens wide routes for water oxidation, further contributing to the development of non-noble metal electrocatalysts.
Τίτλος πηγής δημοσίευσης:	ChemSusChem
Τόμος/Κεφάλαιο:	16
Τεύχος:	8
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Λέξεις-Κλειδιά:	Chalcogenides Electrocatalysis Photocatalysis Porphyrinoids water splitting
EU Grant:	2 Call for HFRI Research Projects to support Faculty Members and Researchers
EU Grant identifier:	2482 PID2019‐104739GB‐100/AEI/10.13039/501100011033 DGA E13‐20R 823717 881603 PID2019‐104272RB‐C51/AEI/10.13039/501100011033 DGA T03_20R
Κάτοχος πνευματικών δικαιωμάτων:	© 2023 Wiley-VCH GmbH.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1002/cssc.202202322
Σημειώσεις:	Financial support by the Hellenic Foundation for Research and Innovation HFRI under the “2 Call for HFRI Research Projects to support Faculty Members and Researchers” (Project Number: 2482) to N.T. is acknowledged. TEM studies were performed in Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza (Spain). R.A. acknowledges support from Spanish MCIN (PID2019‐104739GB‐100/AEI/10.13039/501100011033), Government of Aragon (projects DGA E13‐20R) and from EU H2020 “ESTEEM3” (Grant number 823717) and Graphene Flagship (881603). W.K.M and A.M.B acknowledge support from Spanish MCIN (PID2019‐104272RB‐C51/AEI/10.13039/501100011033), and the Government of Aragon (Grupos Reconocidos DGA T03_20R).
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο