Application of low pressure capacitively coupled rf hydrogen plasma for low temperature reduction of iron clusters in structure of fe-pillared materials

8th All-Russian Conference on Low Temperature Plasma in the Processes of Functional Coating Preparation

Starshinova, V.L.^1 ; Gorelysheva, V.E.^1 ; Shinkarev, A.A.^1 ; Gnevashev, S.G.^1 ; Kulevtsov, G.N.^1 ; Shinkarev, A.A.^2

Department of Plasma Technology and Nanotechnology of High Molecular Weight Materials, Kazan National Research Technological University, 68 Karl Marx street, Kazan

420015, Russia^1

Department of Soil Science, Kazan Federal University, 18 Kremlyovskaya street, Kazan

420008, Russia^2

关键词: Capacitively coupled;    Composite catalysts;    Hydrogen discharge;    Hydrogen plasmas;    Hydrogen reduction;    Low temperatures;    Low-temperature reduction;    Pillared materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/789/1/012057/pdf
DOI  :  10.1088/1742-6596/789/1/012057

来源: IOP

【 摘 要 】

The unique properties of pillared materials determine their use in catalysis, purification and separation. The paper studies the reduction of composite catalysts, Fe-pillared materials. The authors compare their reduction in low temperature capacitively coupled RF hydrogen discharge of low pressure to their conventional direct hydrogen reduction in a tubular muffle furnace. X-ray diffraction analysis was used to characterize the iron-bearing phases. The results show that the reduction of iron hydro/oxide clusters associated with an aluminosilicate matrix to metallic iron is very challenging due to the degree of the pore space availability for hydrogen.