摘要：Photothermal reverse water gas shift(RWGS)catalysis holds promise for efficient conversions of greenhouse gas CO_(2) and renewable H_(2),powered solely by sunlight,into CO,an important feedstock for the chemical ***,the performance of photothermal RWGS catalysis over existing supported catalysts is limited by the balance between the catalyst loading and dispersity,as well as stability against ***,we report a core-shell strategy for the design of photothermal catalysts,by using Ni1_(2)P_(5) as an example,with simultaneously strong light absorption ability,high dispersity and *** core-shell structured Ni1_(2)P_(5)@SiO_(2) catalyst with a relatively small Ni1_(2)P_(5) particle size of 15 nm at a high Ni1_(2)P_(5) loading of 30 wt%exhibits improved activity,nearly 100%CO selectivity,and superior stability in photothermal RWGS catalysis,particularly under intense *** study clearly reveals the effectiveness of the core-shell strategy in breaking the limitation of supported catalysts and boosting the performance of photothermal CO_(2) catalysis.