3<\/sub>) is a good hydrogen carrier because three hydrogen atoms are packed into each molecule. This means that by weight, almost 20% of ammonia is hydrogen.<\/p>\nWhat is the current problem with ammonia storage?<\/h3>\n Ammonia is a highly corrosive gas making it difficult to store and use.<\/p>\n
Current ammonia storage methods involve liquefying it in pressure-resistant containers at temperatures well below freezing.<\/p>\n
Ammonia can also be stored at room temperature and pressure in porous compounds.<\/p>\n
However, storage capacity is low, and the ammonia cannot always be retrieved easily.<\/p>\n
The new ammonia storage method allows easy and complete retrieval<\/h3>\n The new study reports the discovery of a perovskite, a material with a distinctive repetitive crystal structure. This material is good for ammonia storage as it allows for the easy retrieval of the element at relatively low temperatures.<\/p>\n
The team, led by Masuki Kawamoto at RIKEN CEMS, focused on the perovskite ethylammonium lead iodide (EAPbI3).<\/p>\n
They discovered that at room temperature, its one-dimensional columnar structure undergoes a chemical reaction with ammonia. During this reaction, it dynamically transforms into a two-dimensional layered structure called lead iodide hydroxide (Pb(OH)I).<\/p>\n
Through chemical conversion, ammonia is stored within the layered structure as a nitrogen compound.<\/p>\n
This ammonia storage method is much cheaper than liquefication at -33\u00b0C in pressurised containers.<\/p>\n
Most importantly, the process to retrieve the stored ammonia is just as simple.<\/p>\n
\u201cTo our surprise, ammonia stored in ethylammonium lead iodide could be easily extracted by heating it gently,\u201d said Kawamoto.<\/p>\n
The stored nitrogen compound undergoes a reverse reaction at 50\u00b0C under vacuum and returns to ammonia. This temperature is a lot lower than the 150\u00b0C that is required to extract ammonia from porous compounds.<\/p>\n
The new compound used for ammonia storage is therefore an excellent medium for handling corrosive gases in a simple and cost-effective process.<\/p>\n
Additional bonuses of the new ammonia storage method<\/h3>\n After returning to the one-dimensional columnar structure, the perovskite can be reused. This allows the ammonia to be repeatedly stored and extracted.<\/p>\n\u00a9 shutterstock\/Niwat panket<\/figcaption><\/figure>\nAs well as this, the normal yellow compound became white after the reaction.<\/p>\n
Kawamoto stated: \u201cThe compound\u2019s ability to change colour when storing ammonia means that colour-based ammonia sensors can be developed to determine the amount of ammonia stored.\u201d<\/p>\n
Future uses for the new storage method<\/h3>\n The new storage method has a variety of uses.<\/p>\n
In the short-term, the team has developed a safe ammonia storage method that already has multiple uses in society. For example, in fertiliser, pharmaceuticals, and the textiles industry.<\/p>\n
\u201cIn the long-term,\u201d said co-author Yoshihiro Ito of RIKEN CEMS, \u201cwe hope that this simple and efficient method can be a part of the solution for achieving a decarbonised society through the use of ammonia as carbon-free hydrogen carrier.\u201d<\/p>\n
In the future, the research will help achieve the 2016 Sustainable Development Goals set by the UN.<\/p>\n","protected":false},"excerpt":{"rendered":"
Learn about a compound that offers a safer and easier ammonia storage method, paving the way for a practical hydrogen economy.<\/p>\n","protected":false},"author":18,"featured_media":34722,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[24204],"tags":[24413],"acf":[],"yoast_head":"\n
New way to make ammonia storage safer and easier<\/title>\n \n \n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n \n \n \n \n \n\t \n\t \n\t \n