Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Photo/Electrocatalytic Hydrogen Peroxide Production by Manganese and Iron Porphyrin/Molybdenum Disulfide Nanoensembles
Δημιουργός/Συγγραφέας:	Perivoliotis, Dimitrios K Stangel, Christina Sato, Yuta Suenaga, Kazu [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos
Ημερομηνία:	2022-09
Γλώσσα:	Αγγλικά
ISSN:	1613-6810 1613-6829
DOI:	10.1002/smll.202203032
Άλλο:	35980982
Περίληψη:	The oxygen reduction reaction (ORR) 2e- pathway provides an alternative and green route for industrial hydrogen peroxide (H2 O2 ) production. Herein, the ORR photo/electrocatalytic activity in the alkaline electrolyte of manganese and iron porphyrin (MnP and FeP, respectively) electrostatically associated with modified 1T/2H MoS2 nanosheets is reported. The best performing catalyst, MnP/MoS2 , exhibits excellent electrocatalytic performance towards selective H2 O2 formation, with a low overpotential of 20 mV for the 2e- ORR pathway (Eons  = 680 mV vs RHE) and an H2 O2 yield up to 99%. Upon visible light irradiation, MnP/MoS2 catalyst shows significant activity enhancement along with good stability. Electrochemical impedance spectroscopy assays suggest a reduced charge transfer resistance value at the interface with the electrolyte, indicating an efficient intra-ensemble transfer process of the photo-excited electrons through the formation of a type II heterojunction or Schottky contact, and therefore justifies the boosted electrochemical activities in the presence of light. Overall, this work is expected to inspire the design of novel advanced photo/electrocatalysts, paving the way for sustainable industrial H2 O2 production.
Τίτλος πηγής δημοσίευσης:	Small (Weinheim an der Bergstrasse, Germany)
Τόμος/Κεφάλαιο:	18
Τεύχος:	37
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Φασματοσκοπία[EN] Spectroscopy [EL] Χημεία (Γενικά)[EN] Chemistry (General)
Λέξεις-Κλειδιά:	hydrogen peroxide iron manganese photo/electrocatalysis porphyrins transition metal dichalcogenides
EU Grant:	Reinforcement of Postdoctoral Researchers – 2nd Cycle JST-CREST JSPS KAKENHI
EU Grant identifier:	MIS-5033021 JPMJCR20B1 JP22K04886 JP21H05235
Κάτοχος πνευματικών δικαιωμάτων:	© 2022 Wiley-VCH GmbH
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1002/smll.202203032
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο