Dominance of Surface Barriers in Molecular Transport through Silicalite-1

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dominance of Surface Barriers in Molecular Transport through Silicalite‐1

Development of microporous materials with hierarchical structures of both micro/mesopores leads to molecular transport at nanometer length scales. For novel microporous materials including three-dimensionally ordered mesoporous imprinted (3DOm-i) zeolites and zeolite nanosheets, particle dimensions are below 35 nm resulting in surface-dominated structures. At the same time, the existence of sur...

متن کامل

Direct assessment of molecular transport in mordenite: dominance of surface resistances.

For the first time, macroscopic and microscopic diffusion measurements were combined for a single system: n-hexane in mordenite. Using tapered element oscillating microbalance and IR microimaging results, we unequivocally proved the dominant role of surface barriers for molecular transport.

متن کامل

Surface adsorption isotherms and surface excess densities of n-butane in silicalite-1.

We present isotherms for the adsorption of n-butane on the external and internal surfaces of silicalite, in the temperature range of 320-400 K and at pressures up to 530 kPa. The isotherms were calculated using molecular dynamics simulations. A modified thermostatting algorithm, Soft-HEX, was developed for this purpose. The results for the external as well as the internal surface were fitted to...

متن کامل

Defect-Enhanced Electron Transport through Semiconductor Barriers

It has often been suggested that defects can enhance electron tunneling through barriers. Here, we derive a general expression of the current flowing through semiconductor barriers when induced by the presence of defects, taking into account tunneling and other possible mechanisms. Therefore, we calculate the capture probability of free electrons by defects located in the barrier and the subseq...

متن کامل

A molecular dynamics simulation of water transport through C and SiC nanotubes: Application for desalination

In this work the conduction of ion-water solution through two discrete bundles of armchair carbon and silicon carbide nanotubes, as useful membranes for water desalination, is studied. In order that studies on different types of nanotubes be comparable, the chiral vectors of C and Si-C nanotubes are selected as (7,7) and (5,5), respectively, so that    a similar volume of fluid is investigated ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Journal of Physical Chemistry C

سال: 2013

ISSN: 1932-7447,1932-7455

DOI: 10.1021/jp4089595