ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,139, issued on Aug. 25, was assigned to City University of Hong Kong (Kowloon, Hong Kong).
"Catalyst, its preparation and its use in ammonia synthesis" was invented by Johnny Chung Yin Ho (Shatin, Hong Kong), Dong Chen (Kowloon, Hong Kong) and Shaoce Zhang (Kowloon, Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "A catalyst in ammonia synthesis includes a first layer of metal monochalcogenide-based material; a second layer of metal monochalcogenide-based material stacked with and is spaced from the first layer of metal monochalcogenide-based material by a first distance; wherein the metal monochalcogenide-based material includes SnS. A meth...