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.
View Article and Find Full Text PDFSurface deposition of Ba on Pd/H WO nanowires was developed by using a solution-phase atomic layer deposition process. The procedure involves the generation of Brønsted surface OH sites by H spillover on Pd/WO , which can then hydrolytically condense with Ba(OEt) to produce surface Ba . At just 0.
View Article and Find Full Text PDFNanowire hydrogen bronzes of WO nanowires decorated with Pd (Pd/HWO) were previously demonstrated to effectively capture broadband radiation across the ultraviolet to near-infrared wavelength range and catalyze the reverse water gas shift reaction (RWGS). Herein, we report a synthetic strategy to enhance the performance of this class of photocatalysts by conformally coating Cu atoms onto the surface of Pd/HWO by anchoring Cu(I)OBu to the Brønsted acidic protons of the bronze. The resulting materials are characterized by a suite of analytical methods, including electron microscopy and X-ray absorption spectroscopy.
View Article and Find Full Text PDFFrustrated Lewis pairs (FLPs) created by sterically hindered Lewis acids and Lewis bases have shown their capacity for capturing and reacting with a variety of small molecules, including H and CO, and thereby creating a new strategy for CO reduction. Here, the photocatalytic CO reduction behavior of defect-laden indium oxide (InO (OH) ) is greatly enhanced through isomorphous substitution of In with Bi, providing fundamental insights into the catalytically active surface FLPs (i.e.
View Article and Find Full Text PDF