Abstract
The magnetic field effects on NO adsorption on iron oxides were observed at 303 K. Ferrimagnetic magnetite and maghemite showed magnetic field induced adsorption (magnetoadsorption); i.e., NO adsorption was promoted with an increase in external magnetic field (1-7.6 kG). Hematite (parasitic ferromagnetism) also showed magnetoadsorptivity. Antiferromagnetic iron oxyhydroxides ({alpha}-, {beta}-, and {gamma}-FeOOH) showed magnetic field induced desorption (magnetodesorption). On the other hand, an antiferromagnetic NiO and a ferrimagnetic {delta}-FeOOH exhibited magnetoadsorptivity and magnetodesorptivity, respectively. The magnetoadsorptivity of magnetites depended on the preheating conditions and that of {delta}-FeOOH was independent of its magnetism susceptibility. The results suggest that surface sites and porosity, i.e., adsorption state of NO, rather than solid magnetism would play an important role in the magnetic interactions between solid surfaces and NO molecules under a magnetic field.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
