Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Tai-Cheng Sheng"'
Publikováno v:
Catalysis Letters. 32:305-312
The surface acidic properties of two series of samples,γ-Al2O3 andγ-Al2O3-SnO2 after reaction with CCl2F2/H2 (CFC12/H2), have been investigated by solid state high resolution CP/MAS 31-PNMR, using trimethylphosphine (TMP) as a probe molecule. It wa
Publikováno v:
Spectroscopy Letters. 27:801-816
XPS is used in conjunction with Mossbauer spectroscopy with the aim to study the joint approach of these methods in a case of very similar systems. The combination is tested on a series of iron-8-hydroxy-quinoline complexes with different substituent
Publikováno v:
Catalysis Letters. 23:119-126
A series of Al2O3-SnO2 catalysts with the mole ratio of Al2O3 to SnO2 equal to 1:1, 1 ∶ 0.5, 1 ∶ 0.1, 1 ∶ 0.05 and 1 ∶ 0.01 were characterized by31P NMR of adsorbed trimethyl phosphine (TMP) and119Sn MAS NMR spectroscopy. It was found from31P
Autor:
Liming Zhang, A. J. Kondow, Tai-Cheng Sheng, Göran Gellerstedt, Ragnar Larsson, Virinder S. Parmar, Kirpal S. Bisht, G. Liptay, George W. Francis
Publikováno v:
Acta Chemica Scandinavica. 48:490-497
Autor:
Virinder S. Parmar, G. Liptay, Ragnar Larsson, George W. Francis, Kirpal S. Bisht, Per Kjäll, Tai-Cheng Sheng, J. Blomquist, A. J. Kondow
Publikováno v:
Acta Chemica Scandinavica. 48:526-529
Publikováno v:
J. Chem. Soc., Faraday Trans.. 88:477-482
The pyrolysis of Fe-tetraphenylporphyrin chloride (FeCITPP) has been examined by FTIR spectroscopy. Two series of samples, with and without additional carbon black, were studied. It was found that the decomposition of FeCITPP occurred in a very narro
Publikováno v:
Langmuir. 15:6132-6134
Adsorption of organic phosphines on acidic surfaces produces phosphonium ions, which can be detected by 31P NMR, since their chemical shift is different from that of the free phosphine. In the presence of excess adsorbed phosphine, lines from both ph
Autor:
Tai, Cheng- Sheng
Neuroeconomics is an interdisciplinary research program with the goal of building a biological model of decision making in economic environments. Neuroeconomists ask, how does the embodied brain enable the mind (or groups of minds) to make economic d
Autor:
Tai-Cheng Sheng
Publikováno v:
Journal of Catalysis. 71:119-126
Proton resonance spectra have been measured for hydrogen adsorbed on various supported Pt catalysts. H on Pt has a resonance line as much as 60 ppm upfield of TMS. The position of this line is a function of hydrogen coverage and metal dispersion. The
Autor:
Tai-Cheng Sheng
Publikováno v:
Journal of Catalysis. 77:53-56