Journal article
Ammonia for hydrogen storage: challenges and opportunities
Department of Chemistry, Technical University of Denmark1
Computational Atomic-scale Materials Design, Department of Physics, Technical University of Denmark2
Department of Physics, Technical University of Denmark3
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
Risø National Laboratory for Sustainable Energy, Technical University of Denmark6
Center for Nanoteknologi, Centers, Technical University of Denmark7
Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark8
The possibility of using ammonia as a hydrogen carrier is discussed. Compared to other hydrogen storage materials, ammonia has the advantages of a high hydrogen density, a well-developed technology for synthesis and distribution, and easy catalytic decomposition. Compared to hydrocarbons and alcohols, it has the advantage that there is no CO2 emission at the end user.
The drawbacks are mainly the toxicity of liquid ammonia and the problems related to trace amounts of ammonia in the hydrogen after decomposition. Storage of ammonia in metal ammine salts is discussed, and it is shown that this maintains the high volumetric hydrogen density while alleviating the problems of handling the ammonia.
Some of the remaining challenges for research in ammonia as a hydrogen carrier are outlined.
| Language: | English |
|---|---|
| Publisher: | The Royal Society of Chemistry |
| Year: | 2008 |
| Pages: | 2304-2310 |
| ISSN: | 13645501 and 09599428 |
| Types: | Journal article |
| DOI: | 10.1039/b720020j |
| ORCIDs: | Nørskov, Jens Kehlet and Vegge, Tejs |
