Abstract
A feasible solution to the problem of urban pollution is hydrogen propelled zero-emission vehicles. The US Department of Energy (DoE) has set the target of 6.5 wt% of H2 storage capacity and a volumetric energy density of 1.5 kWh/L at an operating temperature and pressure conditions of 50°C and 2.5 bar respectively by 2010.[1] The storage media being studied until now have not been able to successfully achieve these targets and therefore, a compact, light weight hydrogen-storage system for transportation is not available currently. Hydrogen storage is therefore the key enabling technology that should be significantly advanced in terms of performance and cost effectiveness if hydrogen is to become an important part of the world's energy economy. In the present work, fundamental studies of the processes involved in hydrogen adsorption and release by carbon beryllium-containing lithium hydrides are carried out, to enable the design of efficient hydrogen storage materials for transportation applications. This is obtained by studying geometric, energetic, and thermodynamic properties such as the enthalpy of formation ΔH f of ionic metal hydrides Li(CnBey)H x and Li2(CnBey)Hx. Our results indicate that the presence of (C-Be) dopants in Li-H complexes, enhances the desorption kinetics of these compounds lowering the enthalpy of dehydrogenation tremendously.
| Original language | English |
|---|---|
| Title of host publication | 2006 AIChE Annual Meeting |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 2006 AIChE Annual Meeting - San Francisco, CA, United States Duration: 12 Nov 2006 → 17 Nov 2006 |
Other
| Other | 2006 AIChE Annual Meeting |
|---|---|
| Country | United States |
| City | San Francisco, CA |
| Period | 12/11/06 → 17/11/06 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
Cite this
The role of carbon in the hydrogen storage kinetics of lithium metal hydrides. / Ghouri, Minhaj; Mainardi, Daniela S.
2006 AIChE Annual Meeting. 2006.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - The role of carbon in the hydrogen storage kinetics of lithium metal hydrides
AU - Ghouri, Minhaj
AU - Mainardi, Daniela S.
PY - 2006
Y1 - 2006
N2 - A feasible solution to the problem of urban pollution is hydrogen propelled zero-emission vehicles. The US Department of Energy (DoE) has set the target of 6.5 wt% of H2 storage capacity and a volumetric energy density of 1.5 kWh/L at an operating temperature and pressure conditions of 50°C and 2.5 bar respectively by 2010.[1] The storage media being studied until now have not been able to successfully achieve these targets and therefore, a compact, light weight hydrogen-storage system for transportation is not available currently. Hydrogen storage is therefore the key enabling technology that should be significantly advanced in terms of performance and cost effectiveness if hydrogen is to become an important part of the world's energy economy. In the present work, fundamental studies of the processes involved in hydrogen adsorption and release by carbon beryllium-containing lithium hydrides are carried out, to enable the design of efficient hydrogen storage materials for transportation applications. This is obtained by studying geometric, energetic, and thermodynamic properties such as the enthalpy of formation ΔH f of ionic metal hydrides Li(CnBey)H x and Li2(CnBey)Hx. Our results indicate that the presence of (C-Be) dopants in Li-H complexes, enhances the desorption kinetics of these compounds lowering the enthalpy of dehydrogenation tremendously.
AB - A feasible solution to the problem of urban pollution is hydrogen propelled zero-emission vehicles. The US Department of Energy (DoE) has set the target of 6.5 wt% of H2 storage capacity and a volumetric energy density of 1.5 kWh/L at an operating temperature and pressure conditions of 50°C and 2.5 bar respectively by 2010.[1] The storage media being studied until now have not been able to successfully achieve these targets and therefore, a compact, light weight hydrogen-storage system for transportation is not available currently. Hydrogen storage is therefore the key enabling technology that should be significantly advanced in terms of performance and cost effectiveness if hydrogen is to become an important part of the world's energy economy. In the present work, fundamental studies of the processes involved in hydrogen adsorption and release by carbon beryllium-containing lithium hydrides are carried out, to enable the design of efficient hydrogen storage materials for transportation applications. This is obtained by studying geometric, energetic, and thermodynamic properties such as the enthalpy of formation ΔH f of ionic metal hydrides Li(CnBey)H x and Li2(CnBey)Hx. Our results indicate that the presence of (C-Be) dopants in Li-H complexes, enhances the desorption kinetics of these compounds lowering the enthalpy of dehydrogenation tremendously.
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M3 - Conference contribution
SN - 081691012X
SN - 9780816910120
BT - 2006 AIChE Annual Meeting
ER -