Efficient Low-temperature Ammonia Cracking Enabled by Strained Heterostructure Interfaces on Ru-free Catalyst.

ABSTRACT: Ammonia (NH₃) has emerged as a promising liquid carrier for hydrogen (H₂) storage. However, its widespread adoption in H₂ technology is impeded by the reliance on costly Ru catalysts for low-temperature NH₃ cracking reaction. Here, a strained heterostructure Co@BaAl₂O_4-x core@shell catalyst is reported that demonstrates catalytic performance at low reaction temperatures comparable to most Ru-based catalysts. This catalyst exhibits exceptional activity across a range of space velocity conditions, maintaining high conversion rates at 475 to 575 °C and achieving an impressive H₂ production rate of 64.6 mmol H₂ g_cat ^-1 min^-1. Synchrotron X-ray absorption spectroscopy, synchr

SUBMITTER: Xiong P 

PROVIDER: S-EPMC12676095 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature