Research

2025.02.20　Novel Catalyst Development for Sustainable Ammonia Synthesis

A groundbreaking study explores Ba-Si orthosilicate oxynitride-hydride (Ba₃SiO_5−xN_yH_z) as a sustainable catalyst for ammonia synthesis, offering a potential alternative to traditional transition metal-based systems. Synthesized through low-temperature solid-state reactions and enhanced with ruthenium nanoparticles, these compounds demonstrated improved catalytic performance under milder conditions, providing a more energy-efficient route to ammonia production. This approach also addresses the environmental challenges associated with conventional methods, signaling a shift toward greener industrial practices in ammonia production.


Authors : 　Zhujun Zhang¹, Kazuki Miyashita¹, Tong Wu¹, Jun Kujirai¹, Kiya Ogasawara¹, Jiang Li1, Yihao Jiang¹, Masayoshi Miyazaki¹, Satoru Matsuishi^1,2, Masato Sasase¹, Tomofumi Tada¹*, Hideo Hosono^1,2*, Masaaki Kitano^1,3*
*Corresponding authors　
Title :　　Anion vacancies activate N2 to ammonia on Ba-Si orthosilicate oxynitride-hydride
DOI :　　 10.1038/s41557-025-01737-8
Jounal : 　 Nature Chemistry
Affiliations:　¹MDX Research Center for Element Strategy, Institute of Integrated Research, Institute of Science Tokyo, Japan
²MANA Center, National Institute for Materials Science, Japan
³Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Japan