Abstract：
: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.
journal_name
Chemospherejournal_title
Chemosphereauthors
Tang X,Li L,Shen B,Wang Cdoi
10.1016/j.chemosphere.2013.02.010subject
Has Abstractpub_date
2013-05-01 00:00:00pages
1368-73issue
9eissn
0045-6535issn
1879-1298pii
S0045-6535(13)00280-4journal_volume
91pub_type
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