Characterization of Zn–Ni–Fe hydrotalcite-derived oxides and their application in the hydrolysis of carbonyl sulfide
Source abstract
Abstract
Abstract A series of Zn, Ni and Fe containing hydrotalcite-like compounds with various M 2+ /M 3+ ratios were synthesized by co-precipitation method at pH = 10. The products were characterized by XRD, SEM, TG-DTA, FTIR, CO 2 -TPD and N 2 adsorption/desorption techniques. The results showed that M 2+ /M 3+ ratio affected the formation of hydrotalcite crystal seriously. The precursors with M 2+ /M 3+ mole ratio of 2 and 3 showed pure hydrotalcite phase. After calcination at 250 °C, the derived oxides with larger surface area and more basic sites were obtained. Desulfurization tests showed that the Zn–Ni–Fe hydrotalcite-derived oxide exhibited an excellent activity in low temperature hydrolysis of COS. The optimum M 2+ /M 3+ mole ratio was 3.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Industrial Gas Emission Control · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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