Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Sulfur-doped carbon nanohorn bifunctional electrocatalyst for water splitting
Δημιουργός/Συγγραφέας:	Kagkoura, Antonia Arenal, Raul [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos
Εκδότης:	MDPI
Ημερομηνία:	2020-12-03
Γλώσσα:	Αγγλικά
ISSN:	2079-4991
DOI:	10.3390/nano10122416
Άλλο:	33287153
Περίληψη:	Sulfur-doped carbon nanohorns (S-CNHs) were prepared by an easy one-pot solvothermal process and were employed as efficient electrocatalysts towards water splitting. Initially, oxidation of CNHs followed by thermal treatment with the Lawesson's reagent resulted in the formation of S-CNHs with the sulfur content determined as high as 3%. The S-CNHs were thoroughly characterized by spectroscopic, thermal and electron microscopy imaging means and then electrocatalytically screened. Specifically, S-CNHs showed excellent activity and durability for both O2 and H2 evolution reactions, by showing low overpotential at 1.63 and -0.2 V vs. RHE for oxygen and hydrogen evolution reaction, respectively. Additionally, S-CNHs showed significantly lower Tafel slope value and lower current resistance compared to oxidized and pristine CNHs for both electrocatalytic reactions. The outstanding electrocatalytic properties and high conductivity, along with the high S-doping level, render S-CNHs a promising bifunctional electrocatalyst for water splitting.
Τίτλος πηγής δημοσίευσης:	Nanomaterials (Basel, Switzerland)
Τόμος/Κεφάλαιο:	10
Τεύχος:	12
Σελίδες:	2416
Θεματική Κατηγορία:	[EL] Χημεία (Γενικά)[EN] Chemistry (General) [EL] Φασματοσκοπία[EN] Spectroscopy [EL] Χημική τεχνολογία[EN] Chemical technolgy [EL] Φασματοσκοπία[EN] Spectroscopy
Λέξεις-Κλειδιά:	Carbon nanohorns Electrocatalysis Hydrogen evolution reaction Oxygen evolution reaction Sulfur-doping Water-splitting
Κάτοχος πνευματικών δικαιωμάτων:	Copyright © 2020 by the authors. Licensee MDPI, Basel, Switzerland
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://www.mdpi.com/2079-4991/10/12/2416
Ηλεκτρονική διεύθυνση περιοδικού (link) :	https://www.mdpi.com/journal/nanomaterials
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο