Open Access Article
This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence
Expression of concern: Acceleration of ammonium phosphate hydrolysis using TiO2 microspheres as a catalyst for hydrogen production
Ayman H.
Zaki
*a,
Ahmed Esmail
Shalan
*be,
Aya
El-Shafeay
a,
Yasser M.
Gadelhak
a,
Enas
Ahmed
c,
M. O.
Abdel-Salam
d,
M.
Sobhi
b and
S. I.
El-dek
a
aMaterials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt. E-mail: ayman.zaki@psas.bsu.edu.eg
bCentral Metallurgical Research and Development Institute, P.O. Box 87, Helwan, 11422, Cairo, Egypt. E-mail: a.shalan133@gmail.com; ahmed.shalan@bcmaterials.net
cRenewable Energy Science and Engineering Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Egypt
dEgyptian Petroleum Research Institute, P.O. 11727, Nasr City, Cairo, Egypt
eBCMaterials-Basque Center for Materials, Applications and Nanostructures, Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n, Leioa 48940, Spain
First published on 22nd March 2024
Abstract
Expression of concern for ‘Acceleration of ammonium phosphate hydrolysis using TiO2 microspheres as a catalyst for hydrogen production’ by Ayman H. Zaki et al., Nanoscale Adv., 2020, 2, 2080–2086, https://doi.org/10.1039/D0NA00204F.
The Royal Society of Chemistry is publishing this expression of concern in order to alert readers that concerns have been raised regarding the reliability of the particle size distribution data in Fig. 1, and the SEM images in Fig. 2b and 5b. An investigation is underway, and an expression of concern will continue to be associated with the article until a final outcome is reached.
Jeremy Allen
19th March 2024
Executive Editor, Nanoscale Advances
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