Results 161 to 170 of about 3,360 (187)

Nanoparticle Metal Oxides for Chlorocarbon and Organophosphonate Remediation

2007
The nanotechnology revolution has affected many areas of science, including chemistry and chemical engineering. Although nanotechnology advances in electronics or in the manufacturing of nanomachines are rather recent developments, nanoscale chemical structures are much older.
Shyamala Rajagopalan, Slawomir Winecki, Olga Koper, Kenneth J. Klabunde   +3 more
openaire   +2 more sources

Growth of Escherichia coli on some organophosphonic acids

Canadian Journal of Microbiology, 1969
Escherichia coli (ATCC No. 8739) can use a variety of alkyl and aminoalkylphosphonic acids as a source of phosphorus during growth. Chloromethylphosphonate, phenylphosphonate, hydroxymethylphosphonate, and 2-aminoethylphosphonate will act as a source of phosphorus during growth in the absence of inorganic phosphate.
Stephen H. Bishop, Ashraf U. Alam
openaire   +3 more sources

Chapter 15. Metal Organophosphonate Proton Conductors

2011
New ion conducting materials have major applications in new energy technologies. Foremost among these are applications as proton-conducting electrolyte membranes in hydrogen and direct methanol fuel cells and Li ion conductors for batteries. Significant challenges confront candidates for these membranes collectively, with the goal of better cost ...
Karl W. Dawson, Jared M. Taylor, George K. H. Shimizu   +2 more
openaire   +2 more sources

Photocatalytic decomposition of organophosphonates in irradiated TiO2 suspensions

Journal of Photochemistry and Photobiology A: Chemistry, 1997
Abstract Kinetic analyses of the TiO 2 -catalyzed photodegradation of dimethyl methylphosphonate (DMMP) and diethyl methylphosphonate (DEMP) in oxygenated aqueous solutions are described. The effects of substrate concentration and solution pH are investigated.
Kevin E. O'Shea, Martha Aguilar, Shawn Beightol, William J. Cooper, David V. Kalen, Ivelitza Garcia   +5 more
openaire   +2 more sources

Crystal Chemistry of Organically Templated Vanadium Phosphates and Organophosphonates

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Jon Zubieta, Robert C. Haushalter, Robert C. Finn   +2 more
openaire   +3 more sources

Some bidentate amine adducts of indium(iii) organophosphonates

Journal of Materials Chemistry, 2001
A series of indium(III) organophosphonates with coordinated 2,2′-bipyridyl and 1,10-phenanthroline ligands have been prepared and characterised. The bipyridyl and phenanthroline derivatives of indium(III) phenyl- and benzyl-phosphonates have a 1∶2∶1 molar ratio of metal∶phosphorus∶amine ligand, with proposed formulations In(O3PR)(O2P(OH)R)(C10H8N2)
Julia Morizzi, Colin Rix, Malcolm D. Hobday   +2 more
openaire   +2 more sources

Organophosphonates as anchoring agents onto metal oxide-based materials: synthesis and applications

, 2014
Besides usual coupling agents such as, for instance, silane, thiol, or carboxylic acids, phosphonated-based low molecular weight molecules and polymers appear of great interest for the modification of metal oxides.
Rémi Boissezon, J. Muller, Vincent Beaugeard, S. Monge, J. Robin   +4 more
semanticscholar   +1 more source

Phosphonium ion fragmentation relevant to organophosphonate biodegradation

Journal of the American Chemical Society, 1989
Microbial degradation of organophosphonates 1 via carbon to phosphorus (C-P) bond cleavage has prompted a rapid expansion in chemical literature relevant to the biodegradation. However, the chemistry of organophosphonates under reducing conditions, particularly in regard to C-P bond cleavage, is still largely unknown.
L. Z. Avila, John W. Frost
openaire   +2 more sources

Degradation of organophosphonic acids catalyzed by irradiated titanium dioxide

Journal of Photochemistry and Photobiology A: Chemistry, 1993
Abstract The photoinduced decomposition of three organic phosphonic acids on irradiated titanium dioxide involves the cleavage of the carbon-phosphorus bond to generate the corresponding organic radical. Kinetic data for these reactions are consistent with the Langmuir-Hinshelwood model for heterogeneous reactions.
Jennifer Adamson, David M. Collard, Marye Anne Fox, Kevin W. Krosley   +3 more
openaire   +2 more sources

Micromachined GC Columns for Fast Separation of Organophosphonate and Organosulfur Compounds

Analytical Chemistry, 2008
This article demonstrates how to prepare microfabricated columns (microcolumns) for organophosphonate and organosulfur compound separation that rival the performance of commercial capillary columns. Approximately 16,500 theoretical plates were generated with a 3 m long OV-5-coated microcolumn with a 0.25 microm phase thickness using helium as the ...
Richard I. Masel, Mark A. Shannon, Keith R. Cadwallader, John P. Jerrell, Adarsh D. Radadia   +4 more
openaire   +3 more sources