clay has been researched along with phosphine* in 1 studies
1 other study(ies) available for clay and phosphine
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Halloysite-nanotubes supported FeNi alloy nanoparticles for catalytic decomposition of toxic phosphine gas into yellow phosphorus and hydrogen.
The FeNi alloy nanoparticles (FeNi and BFeNi) supported on natural halloysite nanotubes (HNTs) were prepared for catalytic decomposition of toxic phosphine (PH₃) to yellow phosphorus and hydrogen. The Fourier transform infrared spectroscopy, X-ray diffraction, inductively coupled plasma, scanning electron microscope, and hydrogen temperature-programmed reduction tests were carried out to characterize the physicochemical properties of HNTs and the prepared nano-catalysts. Nearly 100% PH₃ was decomposed into yellow phosphorus and hydrogen at 420 °C with prepared FeNi/HNTs catalysts. Metallic Ni and Fe₃O₄ could be the catalytic active sites in FeNi/HNTs for PH₃ decomposition under the low temperature. The boron (B) additives decrease the catalytic activity of FeNi/HNTs for PH₃ decomposition due to the formation of the spinal NiFe₂O₄ and Fe₂B which replace the active Fe₃O₄ and metallic Ni in catalysts. The developed FeNi/HNTs are low-cost and effective catalysts for air-pollution control and recycle of the hazardous waste PH₃ gas in industry. Topics: Alloys; Aluminum Silicates; Boron; Catalysis; Clay; Ferrosoferric Oxide; Gases; Hydrogen; Metal Nanoparticles; Nanotubes; Nickel; Phosphines; Phosphorus; Temperature | 2013 |