Room Temperature Reaction of Ozone and Dimethyl Methylphosphonate (DMMP) on Alumina-Supported Iron Oxide

2007 ◽  
Vol 111 (26) ◽  
pp. 9417-9426 ◽  
Author(s):  
Mark B. Mitchell ◽  
Viktor N. Sheinker ◽  
Woodrow W. Cox
RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95753-95759 ◽  
Author(s):  
Susmita Paul ◽  
S. M. Islam

Selective transformation of thiols to disulfides by oxidative dehydrogenation has been described using easily prepared and recyclable silica supported iron oxide under green reaction conditions.


2005 ◽  
Vol 876 ◽  
Author(s):  
Bing Tan ◽  
Wentao Xu ◽  
Alan Dozier ◽  
Stephen E. Rankin

AbstractSilica-supported iron oxide nanoparticles are prepared by precipitation within the pores of amine-functionalized SBA-15 silica. The loading of the iron oxide possible by this method is at least 11 wt%. STEM and TEM images show that the supported particles have a uniform diameter (average ∼ 4.0 nm) and are well dispersed. The supported iron oxide nanoparticles are amorphous after calcination at 300°C and, consistent with their nanoscale dimensions, are superparamagnetic at room temperature.


2020 ◽  
Vol 152 (7) ◽  
pp. 074710
Author(s):  
Yixuan Jiang ◽  
Yaguang Zhu ◽  
Dechun Zhou ◽  
Zhao Jiang ◽  
Nan Si ◽  
...  

1998 ◽  
Vol 102 (38) ◽  
pp. 7299-7302 ◽  
Author(s):  
Teweldemedhin M. Tesfai ◽  
V. N. Sheinker ◽  
Mark B. Mitchell

2021 ◽  
Author(s):  
Josef Boronski ◽  
John Seed ◽  
Ashley Wooles ◽  
Stephen Liddle

Room temperature reaction of the uranium(IV)-carbene [U{C(SiMe3)(PPh2)}(BIPMTMS)(μ-Cl)Li(TMEDA)(μ-TMEDA)0.5]2 (1, BIPMTMS = C(PPh2NSiMe3)2) with white phosphorus (P4) produces the organo-P5 compound [P5{C(SiMe3)(PPh2)}2][Li(TMEDA)2] (2) and the uranium(IV)-methanediide [U{BIPMTMS}{Cl}{μ-Cl}2{Li(TMEDA)}] (3). This is an unprecedented...


Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1550
Author(s):  
Vineet Kumar ◽  
Anuj Kumar ◽  
Minseok Song ◽  
Dong-Joo Lee ◽  
Sung-Soo Han ◽  
...  

The increasing demand for polymer composites with novel or improved properties requires novel fillers. To meet the challenges posed, nanofillers such as graphene, carbon nanotubes, and titanium dioxide (TiO2) have been used. In the present work, few-layer graphene (FLG) and iron oxide (Fe3O4) or TiO2 were used as fillers in a room-temperature-vulcanized (RTV) silicone rubber (SR) matrix. Composites were prepared by mixing RTV-SR with nanofillers and then kept for vulcanization at room temperature for 24 h. The RTV-SR composites obtained were characterized with respect to their mechanical, actuation, and magnetic properties. Fourier-transform infrared spectroscopy (FTIR) analysis was performed to investigate the composite raw materials and finished composites, and X-ray photoelectron spectroscopy (XPS) analysis was used to study composite surface elemental compositions. Results showed that mechanical properties were improved by adding fillers, and actuation displacements were dependent on the type of nanofiller used and the applied voltage. Magnetic stress-relaxation also increased with filler amount and stress-relaxation rates decreased when a magnetic field was applied parallel to the deformation axes. Thus, this study showed that the inclusion of iron oxide (Fe3O4) or TiO2 fillers in RTV-SR improves mechanical, actuation, and magnetic properties.


2010 ◽  
Vol 12 (7) ◽  
pp. 1281 ◽  
Author(s):  
Camino Gonzalez-Arellano ◽  
Kenta Yoshida ◽  
Rafael Luque ◽  
Pratibha L. Gai

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