Probe of NH3 and CO Adsorption on the Very Outermost Surface of a Porous TiO2 Adsorbent Using Photoluminescence Spectroscopy
A Stevanovic, JT Yates Jr - Langmuir, 2012 - ACS Publications
We report the first measurements of the kinetics of adsorption on the very outermost surface
sites of a porous material compared to measurements made of adsorption on the interior
sites. NH3 and CO were employed in this study as representative of slow diffusion and fast
diffusion, respectively, through porous TiO2. Adsorption of NH3 at 200 K occurs mainly at the
very near surface (∼ 20 nm) region as observed by photoluminescence (PL) spectroscopy,
and its distribution by surface diffusion through the powder is highly retarded as judged by …
sites of a porous material compared to measurements made of adsorption on the interior
sites. NH3 and CO were employed in this study as representative of slow diffusion and fast
diffusion, respectively, through porous TiO2. Adsorption of NH3 at 200 K occurs mainly at the
very near surface (∼ 20 nm) region as observed by photoluminescence (PL) spectroscopy,
and its distribution by surface diffusion through the powder is highly retarded as judged by …
[引用][C] Probe of NH3 and CO Adsorption on the Very Outermost Surface of a Porous TiO2 Adsorbent Using Photoluminescence Spectroscopy
S Ana - 2012
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