Preparation and investigation of glass cloth catalysts in the cource of conversion of metane in to syntetic natural gas

Abstract

The carbon dioxide reforming of methane (CDRM) studied the catalytic activity of nano-structured, low-interest Co, Co-Ni catalysts on the basis of glass obtained by the “solution combustion” (SC). A study of physical and chemical characteristics of the samples by atomic force microscopy (AFM) temperature-programmed reduction (TRP) and the electronic spectra of the diffuse reflectance (ESDR). AFM is installed that the active catalyst particles have a size of 5 nm, which proved the formation of nanoscale particles of active ingredient. Investigation of TPV for systems studied showed absorption maximum displacement of hydrogen to higher temperatures, which is apparently due to the interaction of the active ingredients with the carrier until the formation of now phases. Electronic diffuse reflectance spectra revealed the formation on the surface of the glass defect spinel phase in the composition of which contains ions of Ni and Co: [Co²⁺,Ni²⁺](Co³⁺)₂O₄  and confirmed the data TPR of a strong interaction of Ni²⁺_Оh and Со²⁺_Td with the carrier, as well as the formation of a the synthesis of spinel structures samples some of which are defective, e.g., [Co²⁺](Co³⁺)₂O₄ or [Co²⁺](Al³⁺,Co³⁺)₂O₄ found that SC method allows to obtain the active component on the surface of glass in the form of nanoparticles of 5-10 nm. The high activity of the catalysts, the active compo-nent of which acts cobalt - increasing Co content in the glass matrix leads to high activity.