Synthesis and characterization of AgFeO2 delafossite with non-stoichiometric silver concentration

Nukleonika

Chocyk Dariusz¹  Siedliska Karolina²  Jartych Elżbieta²  Pikula Tomasz² 

[1] Department of Applied Physics, Lublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, Poland;Institute of Electronics and Information Technology, Lublin University of Technology, 38A Nadbystrzycka Str., 20-618 Lublin, Poland;

关键词: delafossite;    silver ferrite;    co-precipitation;    hyperfine interactions;    mössbauer spectroscopy;   

DOI  :  10.1515/nuka-2017-0025

来源: DOAJ

【 摘 要 】

The simple co-precipitation method was used to prepare AgxFeO2 delafossite with non-stoichiometric silver concentration in the range of x = 0.05-1. The obtained material was investigated using X-ray powder diffraction and 57Fe Mössbauer spectroscopy at room temperature. The structural and hyperfi ne interaction parameters were recognized in relation with decreasing silver concentration. The study revealed that the delafossite structure of AgxFeO2 was maintained up to x = 0.9; as the range of silver concentration was decreased to 0.05 ≤ x ≤ 0.8, a mixture of AgFeO2, Fe2O3 or/and FeOOH was formed.

【 授权许可】

Unknown