Nanoscale titanium nitride TiN is a metallic material that can effectively harvest sunlight over a broad spectral range and produce high local temperatures via the photothermal effect. Nanoscale indium oxide-hydroxide, In O (OH) , is a semiconducting material capable of photocatalyzing the hydrogenation of gaseous CO ; however, its wide electronic bandgap limits its absorption of photons to the ultraviolet region of the solar spectrum. Herein, the benefits of both nanomaterials in a ternary heterostructure: TiN@TiO @In O (OH) are combined. This heterostructured material synergistically couples the metallic TiN and semiconducting In O (OH) phases via an interfacial semiconducting TiO layer, allowing it to drive the light-assisted reverse water gas shift reaction at a conversion rate greatly surpassing that of its individual components or any binary combinations thereof.

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http://dx.doi.org/10.1002/smll.202005754DOI Listing

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