# Expression of concern: Acceleration of ammonium phosphate hydrolysis using TiO2 microspheres as a catalyst for hydrogen production

**Authors:** Ayman H. Zaki, Ahmed Esmail Shalan, Aya El-Shafeay, Yasser M. Gadelhak, Enas Ahmed, M. O. Abdel-Salam, M. Sobhi, S. I. El-dek

PMC · DOI: 10.1039/d4na90040e · 2024-03-22

## TL;DR

This paper expresses concern about a study on using TiO2 microspheres to speed up ammonium phosphate hydrolysis for hydrogen production.

## Contribution

The paper raises concerns about the validity or reliability of the original study's findings.

## Key findings

- The paper questions the experimental results or methodology of the original work.
- It highlights potential issues that may affect the credibility of the reported hydrogen production process.

## 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.

## Linked entities

- **Chemicals:** ammonium phosphate (PubChem CID 24540), TiO2 (PubChem CID 26042)

## Full-text entities

- **Chemicals:** TiO2 (MESH:C009495), hydrogen (MESH:D006859), ammonium phosphate (MESH:C024788)

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Source: https://tomesphere.com/paper/PMC11134225