Zobrazeno 1 - 10
of 100
pro vyhledávání: '"B. C. GERSTEIN"'
Autor:
B. C. Gerstein, H. Kimura
Publikováno v:
Applied Magnetic Resonance. 27:5-18
The use of varying multiple-pulse decoupling cycle times in homonuclear dipolar decoupling experiments with combined rotation and multipole-pulse spectroscopy proton nuclear magnetic resonance (NMR) is shown to be capable of quantitatively and qualit
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 32:1961-1968
Transient techniques in NMR of 1H and 13C were used to study the chemical and physical structures of solid poly(p-phenylene) (PPP), poly(2,6-dimethyl-p-phenylene oxide) (PDMPO), poly(p-phenylene sulfide) (PPS), poly(p-biphenylene sulfide) (PPBS), pol
Publikováno v:
Carbon. 32:31-40
A set of 15 petroleum cokes produced by delayed coking in a Mobil laboratory coker has been studied using solid state 1H NMR. From solid echo and free induction measurements, the concentrations of hydrogen as well as inter- and intramolecular second
Publikováno v:
Carbon. 32:41-49
Chemical functionalities of hydrogen and carbon in a series of cokes obtained from heavy crude oils in a Mobile continuous flow laboratory coker pilot unit are probed with high-resolution solid state NMR. The fractions of aromatic hydrogen and carbon
Publikováno v:
ChemInform. 23
NMR of hydrogen chemisorbed on silica-supported ruthenium catalysts was used to study the dissociation of H 2 S and its effect on subsequent hydrogen adsorption. A mixture of H 2 S/He was used to sulfide the reduced catalyst. The hydrogen coverages r
Publikováno v:
ChemInform. 23
Silica-supported ruthenium catalysts prepared from the RuCl3 · 3H2O precursor contain residual chloride after reduction in flowing hydrogen. The amount of this chlorine was determined by X-ray fluorescence spectroscopy to be less than one monolayer
Publikováno v:
Journal of Catalysis. 135:68-80
Silica-supported ruthenium catalysts prepared from the RuCl3 · 3H2O precursor contain residual chloride after reduction in flowing hydrogen. The amount of this chlorine was determined by X-ray fluorescence spectroscopy to be less than one monolayer
Publikováno v:
Journal of Catalysis. 134:572-582
NMR of hydrogen chemisorbed on silica-supported ruthenium catalysts was used to study the dissociation of H 2 S and its effect on subsequent hydrogen adsorption. A mixture of H 2 S/He was used to sulfide the reduced catalyst. The hydrogen coverages r
Publikováno v:
Journal of Magnetic Resonance (1969). 90:90-99
The residual linewidths of NMR spectra of spin - 1 2 systems in solids under magic-angle spinning conditions are calculated in the rigid lattice limit for the general case where both homo- and heteronuclear dipolar interactions as well as shielding a
Publikováno v:
Applied Magnetic Resonance. 1:101-112
NMR signals of19F have been measured in the polycrystalline inorganic conductor Ag2F and in the polycrystalline insulators AgF, YOF, EuOF, YF3, CuF2, BaF2 and KF to compare them to the signals found in the so-called «1-2-3-type» compounds with clai