Nature CommunicationsRelay semi-hydrogenation of acetylene via hydrogen spillover on non-reducible Al2O3-supported single-atom catalystsXianhui WangLuo RanKaige TianXin ChangGuodong SunChunlei PeiSai ChenZhi-Jian ZhaoJinlong Gong2026-06-16Full textDOI https://doi.org/10.1038/s41467-026-74503-0