Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Nature of Acidic Protons in Metallosilicate Molecular Sieves as Studied By Variable Temperature 1h mas Nmr

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Cover image Placeholder

The dynamic properties of protons in H-[Ga]-ZSM-5, H-[B]-ZSM-5 and H-[A1-B]-ZSM-5 were compared with that of protons in H-[A1]-ZSM-5 by temperature dependence of1H MAS NMR in the range of 298 k and 473 K. The temperature dependence of the line width of1H MAS NMR reveals that protons in H-[Ga]-ZSM-5 were more mobile than those in H-[A1]-ZSM-5 at temperature as low as 373 K. The protons in H-[B]-ZSM-5 were not mobile at 473 K and fixed in the zeolite frame work as the bridging hydroxyl groups, =B-OH-Si=. The thermal motion of protons in =A1-OH-Si= was suppressed by introducing B3+ cations into the framework of H-[A1]-ZSM-5.

Affiliations: 1: Department of Chemical Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552, JAPAN; 2: Japan Energy Analytical Research Center Co., Ltd., Toda-shi, Saitama 335, JAPAN; 3: Analytical Instrument Division, JEOL Ltd., 1-2 Musashino 3-Chome, Akishima-shi, Tokyo 196, JAPAN


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation