ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotostudies of 2,2'-bipyridine bis(triphenylphosphine)copper(1+), 1,10-phenanthroline and 2,9-dimethyl-1,10-phenanthroline bis(triphenylphosphine)copper(1+) in solution rigid, low-temperature glasses. Simultaneous multiple emissions from intraligand charge-transfer statesRosemary A. Rader, David R. McMillin, Michael T. Buckner, Thomas G. Matthews, Dominick J. Casadonte, Russell K. Lengel, Steven B. Whittaker, Lola M. Darmon, Fred E. LytleCite...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeterogeneous sonocatalysis with nickel powderKenneth S. Suslick and Dominick J. CasadonteCite this: Am. Chem. Soc. 1987, 109, 11, 3459–3461Publication Date (Print):May 1, 1987Publication History Published online1 May 2002Published inissue 1 1987https://pubs.acs.org/doi/10.1021/ja00245a047https://doi.org/10.1021/ja00245a047research-articleACS PublicationsRequest reuse permissionsArticle Views632Altmetric-Citations129LEARN ABOUT THESE METRICSArticle...

Confocal Raman microscopy was applied to detect structural change within individual particles of low-density polyethylene (LDPE) following chemical and electrochemical processing steps that aimed facilitate material decomposition. A high numerical aperture (NA) oil-immersion objective enabled depth-profiling through the near surface region (20 μm–40 μm) irregularly shaped with an axial spatial resolution < 2 μm estimated from measurements instrument detection efficiency profiles. Changes...

Properties of PtRu nanoparticles prepared using high-intensity sonochemistry are reported. Syntheses were carried out in tetrahydrofuran (THF) containing Ru3+ and Pt4+ a fixed mole ratio either 1:10 or 1:1. X-ray diffraction measurements confirmed sonocation produces an alloy phase showed that the composition nanometer scale metal particles is close to fraction solution with deviations tend toward Ru enrichment phase. The materials gave responses similar terms peak potential current density,...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHindered internal conversion in rigid media. Thermally nonequilibrated 3IL and 3CT emissions from [Cu(5-X-phen)(PPh3)2]+ [Cu(4,7-X2-phen)(PPh3)2]+ systems a glass at 77 KDominick J. Casadonte Jr. David R. McMillinCite this: Am. Chem. Soc. 1987, 109, 2, 331–337Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Published inissue 1 January...

We report a sonochemical synthesis of homogeneous PtCu3 nanoparticles. Ultra-sonication during reduction in non-aqueous solution is compared with under identical conditions the absence sonication (to form Rieke alloy). X-ray diffraction (XRD) measurements suggest that procedure produces an amorphous, uniformly alloyed nanomaterial having composition consistent stoichiometry, while alloy polyphasic. Energy dispersive (EDX) analysis indicates sonochemically prepared material reflects nominal...

This research reports findings from an intergenerational science program, Project Serve, which placed senior volunteers in elementary and junior high classrooms to assist teachers augment instruction. Items the Children's View of Aging survey (Newman, 1997 Newman , S. ( ). Views [survey] . Pittsburgh PA : Generations Together: An Intergenerational Studies Program [Google Scholar]; & Faux, Scholar]) were administered before after project with two goals. The first goal was determine effect on...

The synthesis, photophysical properties, and theoretical calculations of 2,9-di(aryl)-1,10-phenanthroline copper(<sc>i</sc>) complexes are described along with application to a photocatalytic ATRA reaction.

Biodiesel, a mixture of fatty acid methyl esters (FAME), is bio-renewable, non-toxic, biodegradable, and an attractive alternative to petroleum diesel. This work studied the sonochemical transesterification Lesquerella fendleri oil (LFO) using inexpensive solid Lewis (LA) catalysts with aim reduce environmental pollution dependance on non-renewable fuel sources. Due presence hydroxy (HFAME) in LFO (∼60%), addition producing biofuel it can also be used generate chemically important estolides...

Infrared spectroscopy was applied to probe water inside pores and channels of Nafion membrane exchanged with either proton (H+) or sodium ions (Na+). Transmission measurements were performed on freestanding 112 (approximately 50 microm thickness) in a cell that enabled adjustment the relative humidity. Experiments employed Na+-exchanged focused humidity environments at below about 32% generated through use humectants. Under these conditions, narrow features O-H stretching spectral region...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDual emissions from (2,9-dimethyl-1,10-phenanthroline)bis(tertiary phosphine)copper(1+) systems in a rigid glass: influence of the phosphine donor strengthDominick J. Casadonte Jr. and David R. McMillinCite this: Inorg. Chem. 1987, 26, 23, 3950–3952Publication Date (Print):November 1, 1987Publication History Published online1 May 2002Published inissue 1 November 1987https://doi.org/10.1021/ic00270a025RIGHTS & PERMISSIONSArticle...

A sonochemical method is employed to synthesize LaNiO3 perovskites as catalysts for methane decomposition produce clean COx-free hydrogen and structured carbon. The catalytic activities of prepared under various conditions (different power densities exposure times) are contrasted with those by a conventional sol–gel method. results show that sonochemically catalyst presents conversion up 60% after 16 h reaction, while the deactivates quickly, reaching 1% 30 min reaction. Structural...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUltrasonic irradiation of copper powderKenneth S. Suslick, Dominick J. Casadonte, and Stephen DoktyczCite this: Chem. Mater. 1989, 1, 6–8Publication Date (Print):January 1989Publication History Published online1 May 2002Published inissue 1 January 1989https://pubs.acs.org/doi/10.1021/cm00001a003https://doi.org/10.1021/cm00001a003research-articleACS PublicationsRequest reuse permissionsArticle Views447Altmetric-Citations37LEARN ABOUT THESE...

Sonochemically prepared PtRu (3 : 1) and Johnson Matthey (1 were analyzed by X-ray absorption spectroscopy in operating liquid feed direct methanol fuel cells. The total metal loadings 4 mg cm(-2) unsupported catalysts at the anode cathode of membrane electrode assembly. Ex situ XRD lattice parameter analysis indicates partial segregation Ru from fcc alloy both catalysts. A comparison DMFC EXAFS to that as-received catalyst shows restructuring during operation increases coordination numbers....

A new air and moisture stable antimony thiolate compound has been prepared that spontaneously forms hollow vesicles. Structural data reveals pnictogen bonding drives the self-assembly of these molecules into a reversed bilayer. The ability to make hollow, spherical, chemically temporally vesicles can be broken reformed by sonication allows systems used for encapsulation compartmentalisation in organic media. This was demonstrated through characterization several small reporter molecules.

Sonochemistry was applied to prepare Pt-Ni electrocatalyst materials. To promote uniform alloying, a route based on sonication of precursor metal salts in non-aqueous solution containing strong reducing agent used as an alternative aqueous solution. Metal nanoparticles consistent with the Pt3Ni stoichiometry were formed by reaction mixture that contained 3:1 mole ratio Pt4+ and Ni2+ ions tetrahydrofuran (THF). After isolation, characterized use transmission electron microscopy (TEM),...

[reaction: see text] Graphite intercalation compounds (GICs) are useful as powerful reducing agents in organic chemistry and typically prepared by anaerobic solid-state reactions at high temperatures for 1-8 h. We have been able to prepare KC(8) situ toluene using ultrasound less than 5 min. This allows a convenient approach reductive chemical syntheses involving GICs.