[en] Using a microscopic momentum space optical potential and the method for treating the Coulomb force, which is propose by R. Crespo and J.A.Tostevin, the authors calculated the differential cross section of elastic nucleon scattering from the ³H and ³He mirror nuclei at 500 MeV and the ratio of cross sections. The charge symmetry breaking effects due to the Coulomb force between the proton and nuclei are shown

[en] The effect of N₂ treatment on the photocatalytic activity of Pt⁰/TiO₂ was investigated. The results showed that after treatment at 500 deg. C in N₂, 70% of the photocatalytic activity of 1.0 wt.% Pt⁰/TiO₂ was lost by the evaluation of photocatalytic oxidation reaction of C₃H₆. Transmission electron microscopy (TEM) and Ar⁺ ion sputtering tests revealed that in the course of high-temperature N₂ treatment, the size of Pt⁰ particles on TiO₂ increases and a strong interaction between metal and support, i.e. Pt⁰ particles encapsulated by Ti_xO_y, happens, which are the reasons for the deactivation of Pt⁰/TiO₂ photocatalyst treated by high-temperature N₂

[en] X-ray photoelectron spectroscopy combined with Ar⁺ ion sputtering has been used to analyze the variation in the valence and concentration of Pt, Ti, and O of Pt⁰/TiO₂ reduced by H₂ at elevated temperature. It is confirmed that titanium oxide of low-valence is transferred onto the surface of Pt⁰ particulates to encapsulate the surface via a strong metal-support interaction under reducing atmosphere. It is also found for the first time that Pt⁰ atom is diffused into the lattice of TiO₂ to occupy the oxygen vacancy (V_O··) and accept one electron from adjacent Ti³⁺ forming a localized Pt^--Ti⁴⁺ bond. This differs from the strong metal-support interaction under oxidizing atmosphere. Namely, although the Pt⁰ atom is also diffused into the lattice of TiO₂ under oxidizing atmosphere, it replaces Ti atom and forms a Pt²⁺-O^2- bond. Moreover, the strong metal-support interaction under oxidizing atmosphere results in increased photocatalytic activity of Pt⁰/TiO₂, while the strong metal-support interaction under reducing atmosphere leads to decreased photocatalytic activity of Pt⁰/TiO₂.