Zobrazeno 1 - 10
of 64
pro vyhledávání: '"C. M. Lukehart"'
Autor:
C. M. Lukehart, Matthew J. Vergne, Joshua T. Moore, Angela D. Anderson, Edward A. Kenik, David M. Hercules, Gregg Anthony Deluga
Publikováno v:
Journal of Nanoscience and Nanotechnology. 4:809-816
Pt-Re/Vulcan carbon powder nanocomposites have been prepared with total metal loadings of 18 wt.% and 40 wt.% using a new non-cluster (1:1)-PtRe bimetallic precursor as the source of metal. Pt-Re nanoparticles having an average diameter of ca. 6 nm a
Autor:
Joshua T. Moore, Edward A. Kenik, C. M. Lukehart, Rongzhong Jiang, James D. Corn, Deborah L. Boxall, Deryn Chu
Publikováno v:
Chemistry of Materials. 15:3320-3325
Thermal treatment of [Ru(2,3-bis(2-pyridyl)quinoxaline)3(PtCl2)3](BF4)2/Vulcan carbon powder composites under reactive conditions forms Pt−Ru/carbon nanocomposites containing 27−34 wt % metal alloy as highly dispersed nanoparticles of ca. Pt75Ru2
Autor:
William D. King, Krzysztof C. Kwiatkowski, C. M. Lukehart, Edward A. Kenik, James D. Corn, Stuart R. Stock, Oliver J. Murphy, Deborah L. Boxall
Publikováno v:
The Journal of Physical Chemistry B. 107:5467-5474
Six Pt−Ru/carbon nanocomposites have been prepared, using five different Pt,Ru-bimetallic precursors as sources of metal. Nanocomposites prepared from precursors lacking phosphorus contain Pt−Ru nanocrystals that are highly dispersed on the carbo
Publikováno v:
Chemistry of Materials. 15:1119-1124
Thermal treatment of cis-(2,2‘-bipyridine)2OsCl2, (η6-cymene)2Os2Cl4, or [(bpy)2Os(μ-bpm)PtCl2][CF3SO3]2/Vulcan carbon powder composites under solely reductive conditions affords Os or Pt−Os/carbon...
Autor:
C. M. Lukehart, Joshua T. Moore
Publikováno v:
Journal of Cluster Science. 14:75-83
Homogeneous mixed-metal oxides of the general formula (Bi/E/Si)Ox, where E represents a dopant element (E=Sb, Sn, or Sb/Sn), can be prepared using typical sol-gel processing techniques. Reduction of the in-situ Bi(III) and E ions by hydrogen affords
Publikováno v:
The Journal of Physical Chemistry B. 106:760-766
Six Pt−Ru/carbon fiber nanocomposites have been prepared by using a bimetallic precursor as a source of metal. Carbon fiber supports include singled-walled nanotubes, multiwalled nanotubes, or graphitic carbon nanofibers having either platelet, wid
Publikováno v:
The Journal of Physical Chemistry B. 105:8097-8101
Multistep deposition and reactive decomposition of a precursor molecule containing one Pt and one Ru atom on herringbone graphitic carbon nanofibers (GCNFs) affords a Pt−Ru/GCNF nanocomposite containing Pt−Ru alloy nanoclusters widely dispersed o
Autor:
Deborah L. Boxall, Gregg Anthony Deluga, Edward A. Kenik, C. M. Lukehart, and William D. King
Publikováno v:
Chemistry of Materials. 13:891-900
Thermal treatment of (η-C2H4)(Cl)Pt(μ-Cl)2Ru(Cl)(η3:η3-2,7-dimethyloctadienediyl) (1)/Vulcan carbon composites under appropriate oxidizing and reducing conditions using microwave dielectric loss heating affords PtRu/Vulcan carbon nanocomposites c
Autor:
Joshua T. Moore, C. M. Lukehart
Publikováno v:
Journal of Materials Chemistry. 12:288-290
Bi or Bi–Te alloy/ceramic xerogel nanocomposites can be conveniently prepared at high total metal loading by hydrogen reduction of appropriate mixed-metal ceramic gels. Bi–Te nanoparticles having hexagonal shapes are formed and can be isolated fr
ChemInform Abstract: Organometallic Compounds as Single-Source Precursors to Nanocomposite Materials
Autor:
J. P. CARPENTER, C. M. LUKEHART, S. B. MILNE, S. R. STOCK, J. E. WITTIG, B. D. JONES, R. GLOSSER, J. G. ZHU
Publikováno v:
ChemInform. 29
Molecularly doped silica xerogels are prepared via sol-gel procedures by the addition of either main-group or transition metal organometallic compounds containing bifunctional ligands to conventional sol-gel recipes. These bifunctional ligands contai