02239nas a2200253   4500008004100000022001400041245012100055210006900176260000800245490000600253520129900259653002801558653002301586653002401609653003701633653002001670100002701690700002201717700002401739700003701763700002801800700002501828856013201853       2025                        eng d  a2366-748600aAtomic Layer Deposition Grown Titania Phases (TiO2, TiO, Ti2O) and its Influence on Water Splitting Electrocatalysis0 aAtomic Layer Deposition Grown Titania Phases TiO2 TiO Ti2O and i  cAUG0 v93 a<p>
	The systematic engineering of atoms and the precise tuning of their arrangement can unlock a range of hidden yet remarkable properties of materials. In this study, different phases of titanium oxide, including TiO2, TiO, and Ti2O, are developed using the Atomic Layer Deposition (ALD) technique. Notably, a novel TiO(2 )electride with a pbcn space group is identified, and variations in stoichiometries, such as Ti1.80O, Ti2.05O, and Ti2.30O, are observed through Rietveld analysis of the corresponding X-ray Diffraction (XRD) data. High-resolution transmission electron microscopy (HRTEM) imaging further revealed line defects such as stacking faults and edge dislocations in Ti2O. The interplay of stoichiometric defects in Ti2O electrides leads to tunable electrocatalytic behavior, enabling transitions from oxygen evolution to hydrogen evolution reactions. Importantly, using Density functional theory (DFT), Paterson analysis, and Fourier electron density mapping, the exceptional metallic properties of Ti2O are rationalized as arising from its unique spatial electron density distribution. Overall, this work underscores the significance of atomic-level structure engineering and opens the door to a new class of titanium oxide catalysts for electrochemical water splitting.</p>
10aatomic layer deposition10adefect engineering10adefect-rich titania10aElectrocatalytic water splitting10aTi2O electrides1 aSwaminathan, Jayashree1 aPalani, Parthiban1 aSalpekar, Devashish1 aHernandez, Francisco, Carlos Rob1 aAshokkumar, Meiyazhagan1 aAjayan, Pulickel, M.  uhttps://library.ncl.res.in/content/atomic-layer-deposition-grown-titania-phases-tio2-tio-ti2o-and-its-influence-water-splitting