The authors retract this article (DOI: 10.1021/acs.energyfuels.4c06191) because during a postpublication review of the pellet characterization data, two errors were discovered in the reported packing densities of the AX-21 and MOF-177 pellets. The incorrect density values affected the subsequent methane uptake calculations, resulting in inaccurate data and the extent of the corrections to specific data that warrants a retraction. As such, the article is being retracted.
The original article was published on April 28, 2025 and retracted on August 26, 2025.