In summary in our experimental conditions ns
There is an intense interest in supported nanoparticles on semiconductor materials due to synergistic positive effects that provides extraordinary properties. Combination of Pt, Pd, Ni, Ag, NiO or RuO2 nanoparticles with semiconductor such as TiO2, ZnO, NaTaO3 and Sr2Ta2O7 produces systems that possess numerous applications in modern engineering, environmental and Calcium chloride , ,  and . In particular, nickel nanoparticles on metal semiconductor oxides has been widely used as cocatalysts to improve photocatalytic water splitting in a noble-metal free system ,  and . The photocatalytic potential of NiO/Sr2Ta2O7 have been demonstrated for water splitting with high hydrogen evolution rate ,  and . However, the performance efficiency of the metal/oxide system is strongly influenced by the size, shape and nanoparticles dispersion. The conventional synthesis method employed to support Ni nanoparticles are impregnation techniques, although the dispersion of nickel nanoparticles is relatively lower and polymer is difficult to control particle size and shape  and . Thus, the need of competitive low-cost procedures and short preparation time of supported Ni nanoparticles with high dispersion as well as high Ni loading still remain challenging. Electroless technique is an attractive choice because it is possible to deposit Ni nanoparticles in any surface with a good control of Ni loading, size and dispersion, being also a short-time and low temperature process that requires simple equipment ,  and . In this paper, an electroless deposition was employed to disperse Ni nanoparticles on Sr2Ta2O7 with a SMT and PRT surface in order to investigate the effect of the texture of the material in the electroless processes parameters such as temperature and deposition time.