Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Hydrogen storage in ion-exchanged zeolites
Journal of Alloys and Compounds, Volume 404-406, No. SPEC. ISS., Year 2005
Notification
URL copied to clipboard!
Description
The hydrogen storage properties of zeolites X, Y, A and Rho containing various exchangeable cations have been investigated. All hydrogen storage capacities were measured at a temperature of -196° C and a pressure range of 0-15 bar, using a constant pressure thermogravimetric analyser. The results show that, zeolites exhibit diverse behaviour with respect to hydrogen uptake, dependent on both the framework structure and the nature of the cations present. A major factor influencing uptake is the available void space: in zeolites A and Rho pore blocking by large extraframework cations is a major factor restricting hydrogen uptake, but in zeolites X and Y, blocking does not occur. This study also suggests that cations may act as binding sites for hydrogen molecules. For zeolites X and Y, hydrogen uptake relates closely to the measured BET surface area. The highest gravimetric storage capacity of 2.19 wt.% was obtained for CaX. Volumetric storage densities of up to 31.0 kg H 2/m3 (143 H2 molecules/unit cell) and 30.2 kg H2/m3 (144 H2 molecules/unit cell) were achieved for CaX and KX, respectively. © 2005 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Langmi, Henrietta W.
United Kingdom, Birmingham
University of Birmingham
Book, David
United Kingdom, Birmingham
University of Birmingham
Walton, Allan
United Kingdom, Birmingham
University of Birmingham
Edwards, Peter Phillip
United Kingdom, Oxford
University of Oxford
Harris, Ivor Rex
United Kingdom, Birmingham
University of Birmingham
Statistics
Citations: 151
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1016/j.jallcom.2004.12.193
ISSN:
09258388