Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Ho Yeung H. Chan"'
Autor:
Ho Yeung H. Chan, Edmund G. Seebauer
Publikováno v:
Reviews in Chemical Engineering. 18:1-48
Publikováno v:
The Journal of Physical Chemistry B. 104:8250-8258
The effect of water vapor on the temperature-dependent surface oxidation of Pt-group metals in ambient-pressure gaseous oxygen environments is explored by means of surface-enhanced Raman spectroscopy (SERS). This exploits the ability of SERS to monit
Publikováno v:
Langmuir. 16:754-763
The electrode potential-dependent formation, stability, and nature of oxide layers formed on iridium, palladium, rhodium, and platinum in acidic aqueous solution are explored by means of in-situ surface-enhanced Raman spectroscopy (SERS). The techniq
Publikováno v:
Langmuir. 15:3348-3355
The adsorption of benzotriazole (BTAH) on copper in aqueous electrolytes is examined by means of a vibrational analysis utilizing surface-enhanced Raman spectroscopy (SERS) as a function of solvent deuteration, pH, and electrode potential in order to
Publikováno v:
The Journal of Physical Chemistry B. 103:357-365
The electrode potential-dependent formation of oxygen species on copper in noncomplexing aqueous media, encompassing oxide phase films and adsorbed oxygen/hydroxide, are explored at different pH values by means of surface-enhanced Raman spectroscopy
Autor:
Ho Yeung H. Chan, Michael J. Weaver, Christos G. Takoudis, Christopher T. Williams, Anish A. Tolia
Publikováno v:
Industrial & Engineering Chemistry Research. 37:2307-2315
The utility of surface-enhanced Raman spectroscopy (SERS) as an in situ adsorbate probe of heterogeneous catalytic systems at high gas pressures (here up to 1 atm) in conjunction with mass spectrom...
Publikováno v:
Journal of Catalysis. 174:191-200
The influences of surface speciation upon the catalytic oxidation kinetics of methanol on palladium under ambient-pressure flow-reactor conditions was examined by surface-enhanced Raman spectroscopy (SERS) combined with mass spectrometry (MS) and com
Autor:
Michael J. Weaver, Christos G. Takoudis, Shouzhong Zou, Christopher T. Williams, Ho Yeung H. Chan
Publikováno v:
Catalysis Letters. 52:181-190
The dependence of adsorbate vibrational frequencies on the surface potential, φ (“Stark-tuning” effect), observed in electrochemical systems is exploited for the same metal surfaces in contact with ambient-pressure gases so to estimate φ values
Publikováno v:
Journal of Catalysis. 172:336-345
Surface-enhanced Raman spectroscopy (SERS) combined with X-ray photoelectron spectroscopy (XPS) has been utilized to study the oxidation of ruthenium at ambient pressure (1 atm) and elevated temperatures (25–300°C). The SERS probe provides in-situ
Autor:
Michael J. Weaver, Ho Yeung H. Chan, Christos G. Takoudis, Anish A. Tolia, Christopher T. Williams
Publikováno v:
Journal of Catalysis. 163:63-76
Surface-enhanced Raman spectroscopy (SERS), combined with simultaneous mass spectrometric measurements, has been utilized to probe the reactive nature of surface species present during the reduction of NO by CO on Pt and Pd. As in our earlier studies