The effect of surface states accumulation on photo-electrochemical performances of Bi24Fe2O39 grown by supersonic beams

Skerxho Osmani; Enrico Scattolin; Michele Vergari; Alberto Gasparotto; Gian Andrea Rizzi; Luca Gavioli

doi:10.1016/j.jpcs.2024.112160

The effect of surface states accumulation on photo-electrochemical performances of Bi24Fe2O39 grown by supersonic beams

Skerxho Osmani, Enrico Scattolin, Michele Vergari, Alberto Gasparotto, Gian Andrea Rizzi^*, Luca Gavioli^*

^*Autore corrispondente per questo lavoro

University of Padua

Risultato della ricerca: Contributo in rivista › Articolo in rivista › peer review

Abstract

Holes accumulation on the surface of bismuth ferrite oxides (BFO) photoanodes for photoelectrochemical (PEC) water splitting (WS) is one of the major issues limiting the overall cell efficiency. However, among the various BFO crystal structures, no evidence of this mechanism has been reported for Bi24Fe2O39, a scarcely investigated phase. Herein we characterize the morphological, structural and PEC properties of 100 nm thick nanogranular films of a Bi24Fe2O39 single phase synthesized by supersonic cluster beam deposition. The films were tested as photoanodes for the WS reaction in KOH and Na2SO4 + Na2SO3 electrolytes. The PEC data provide direct evidence of holes accumulation on the surface of the material with increasing applied biases. The interesting performances of this material at low biases suggest a possible use as photocatalyst under visible light irradiation.

Lingua originale	English
pagine (da-a)	N/A-N/A
Numero di pagine	9
Rivista	Journal of Physics and Chemistry of Solids
DOI	https://doi.org/10.1016/j.jpcs.2024.112160
Stato di pubblicazione	Pubblicato - 2024

Keywords

Photocatalysis
Gas phase deposition
Nanogranular bismuth ferrites films
Reaction kinetics constants
Holes accumulation

OSS delle Nazioni Unite

Questo processo contribuisce al raggiungimento dei seguenti obiettivi di sviluppo sostenibile

Accesso al documento

10.1016/j.jpcs.2024.112160

Altri file e collegamenti

Open Access link a IRIS PubliCatt

Cita questo

@article{b18210f1fb3c4c818a2136b145095739,

title = "The effect of surface states accumulation on photo-electrochemical performances of Bi24Fe2O39 grown by supersonic beams",

abstract = "Holes accumulation on the surface of bismuth ferrite oxides (BFO) photoanodes for photoelectrochemical (PEC) water splitting (WS) is one of the major issues limiting the overall cell efficiency. However, among the various BFO crystal structures, no evidence of this mechanism has been reported for Bi24Fe2O39, a scarcely investigated phase. Herein we characterize the morphological, structural and PEC properties of 100 nm thick nanogranular films of a Bi24Fe2O39 single phase synthesized by supersonic cluster beam deposition. The films were tested as photoanodes for the WS reaction in KOH and Na2SO4 + Na2SO3 electrolytes. The PEC data provide direct evidence of holes accumulation on the surface of the material with increasing applied biases. The interesting performances of this material at low biases suggest a possible use as photocatalyst under visible light irradiation.",

keywords = "Photocatalysis, Gas phase deposition, Nanogranular bismuth ferrites films, Reaction kinetics constants, Holes accumulation, Photocatalysis, Gas phase deposition, Nanogranular bismuth ferrites films, Reaction kinetics constants, Holes accumulation",

author = "Skerxho Osmani and Enrico Scattolin and Michele Vergari and Alberto Gasparotto and Rizzi, {Gian Andrea} and Luca Gavioli",

year = "2024",

doi = "10.1016/j.jpcs.2024.112160",

language = "English",

pages = "N/A--N/A",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - The effect of surface states accumulation on photo-electrochemical performances of Bi24Fe2O39 grown by supersonic beams

AU - Osmani, Skerxho

AU - Scattolin, Enrico

AU - Vergari, Michele

AU - Gasparotto, Alberto

AU - Rizzi, Gian Andrea

AU - Gavioli, Luca

PY - 2024

Y1 - 2024

N2 - Holes accumulation on the surface of bismuth ferrite oxides (BFO) photoanodes for photoelectrochemical (PEC) water splitting (WS) is one of the major issues limiting the overall cell efficiency. However, among the various BFO crystal structures, no evidence of this mechanism has been reported for Bi24Fe2O39, a scarcely investigated phase. Herein we characterize the morphological, structural and PEC properties of 100 nm thick nanogranular films of a Bi24Fe2O39 single phase synthesized by supersonic cluster beam deposition. The films were tested as photoanodes for the WS reaction in KOH and Na2SO4 + Na2SO3 electrolytes. The PEC data provide direct evidence of holes accumulation on the surface of the material with increasing applied biases. The interesting performances of this material at low biases suggest a possible use as photocatalyst under visible light irradiation.

AB - Holes accumulation on the surface of bismuth ferrite oxides (BFO) photoanodes for photoelectrochemical (PEC) water splitting (WS) is one of the major issues limiting the overall cell efficiency. However, among the various BFO crystal structures, no evidence of this mechanism has been reported for Bi24Fe2O39, a scarcely investigated phase. Herein we characterize the morphological, structural and PEC properties of 100 nm thick nanogranular films of a Bi24Fe2O39 single phase synthesized by supersonic cluster beam deposition. The films were tested as photoanodes for the WS reaction in KOH and Na2SO4 + Na2SO3 electrolytes. The PEC data provide direct evidence of holes accumulation on the surface of the material with increasing applied biases. The interesting performances of this material at low biases suggest a possible use as photocatalyst under visible light irradiation.

KW - Photocatalysis

KW - Gas phase deposition

KW - Nanogranular bismuth ferrites films

KW - Reaction kinetics constants

KW - Holes accumulation

KW - Photocatalysis

KW - Gas phase deposition

KW - Nanogranular bismuth ferrites films

KW - Reaction kinetics constants

KW - Holes accumulation

UR - http://hdl.handle.net/10807/281747

U2 - 10.1016/j.jpcs.2024.112160

DO - 10.1016/j.jpcs.2024.112160

M3 - Article

SN - 0022-3697

SP - N/A-N/A

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

ER -

The effect of surface states accumulation on photo-electrochemical performances of Bi24Fe2O39 grown by supersonic beams

Abstract

Keywords

OSS delle Nazioni Unite

Accesso al documento

Altri file e collegamenti

Fingerprint

Cita questo