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

Expression of concern for 'Acceleration of ammonium phosphate hydrolysis using TiO microspheres as a catalyst for hydrogen production' by Ayman H. Zaki , , 2020, , 2080-2086, https://doi.org/10.

Acceleration of ammonium phosphate hydrolysis using TiO microspheres as a catalyst for hydrogen production.

Titania microspheres are considered an adequate material with low cost and easily attainable pathways, and can be utilized in photocatalytic H production to solve the energy crisis. Spherical porous titanium dioxide materials, with nanostructure composition, were chemically synthesized from titanate nanotubes a simple hydrothermal technique, then added as a catalyst to accelerate the route of ammonium phosphate hydrolysis for hydrogen production. The mechanism of sphere formation from titanate nanotubes is elucidated in detail through the current study.