Brønsted Acidity Study of Fiberglass Materials by H/D-Exchange
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Applied Catalysis A: General
ISSN: 0926-860X
, E-ISSN: 1873-3875
|
| Output data |
Year: 2009,
Volume: 366,
Number: 2,
Pages: 262-268
Pages count
: 6
DOI:
10.1016/j.apcata.2009.07.008
|
| Tags |
Brønsted acidity, Fiberglass materials, H/D-exchange |
| Authors |
Glazneva T.S.
1
,
Sadovskaya E.M.
1
,
Suknev A.P.
1
,
Goncharov V.B.
1
,
Simonova L.G.
1
,
Paukshtis E.A.
1
,
Balʹzhinimaev B.S.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
|
The kinetics of hydrogen isotopic exchange over fiberglass materials and reference samples (SiO2, H3PO4/SiO2, and HZSM-5) was studied at 500 °C under the dynamic adsorption–desorption equilibrium. The concentrations and H/D-exchange rates of different Brønsted acid sites (BAS) were determined using the numerical modeling of isotope exchange dynamics. The correlation between H/D-exchange rate of reference samples and their acidity determined by FTIR spectroscopy of adsorbed CO was established. Based on this correlation, the strength of BAS in fiberglass materials was shown to be comparable to that of HZSM-5 zeolite.