In this study, the use of a thermally stable Ir/Ce_0.9La_0.1O₂ catalyst was investigated for the dry reforming of methane. The doping of La₂O₃ into the CeO₂ lattice enhanced the chemical and physical properties of the Ir/Ce_0.9La_0.1O₂ catalyst, such as redox properties, Ir dispersion, oxygen storage capacity, and thermal stability, with respect to the Ir/CeO₂ catalyst. Hence, the Ir/Ce_0.9La_0.1O₂ catalyst exhibits higher activity and stabler performance for the dry reforming of methane than the Ir/CeO₂ catalyst. This observation can be mainly attributed to the stronger interaction between the metal and support in the Ir/Ce_0.9La_0.1O₂ catalyst stabilizing the catalyst structure and improving the oxygen storage capacity, leading to negligible aggregation of Ir nanoparticles and the Ce_0.9La_0.1O₂ support at high temperatures, as well as the rapid removal of carbon deposits at the boundaries between the Ir metal and the Ce_0.9La_0.1O₂ support.

Two-dimensional (2D) materials are highly promising for flexible electronics, and graphene is the only well-studied transparent conductor. Herein, density functional theory has been used to explore a new transparent conducting material via adsorption of H on a 2D β-GaS sheet. This adsorption results in geometrical changes to the local structures around the H. The calculated electronic structures reveal metallic characteristics of the 2D β-GaS material upon H adsorption and a large optical band gap of 2.72 eV with a significant Burstein-Moss shift of 0.67 eV. The simulated electrical resistivity is as low as 10^–4 Ω·cm, comparable to the benchmark for ITO thin films.