| Abstract Scope |
In 2022, we discovered that reacting >15 Ti-compounds with tetramethylammonium hydroxide or other quats, at temperatures <100°C and 1 atm. for tens of hours, converts them into one dimensional, lepidocrocite-based, 1DL, nanofilaments ≈ 5x7 Å2 in cross-section. Quantum confinement to 1D, boosts Eg to ≈ 4 eV. With effective specific surface areas >1500 m2/g, some of their properties are exceptional such as record photochemical H2-production with exceptional (>6 months) stability. The latter suggests, 1DLs are thermodynamically stable in water. We show excellent OER rates and stabilities. Electrodes made with 1DLs, or their composites, perform well in supercapacitors, S- and Li-batteries. The record adsorption of heavy metal cations and cationic dyes and the photochemical degradation of the latter into CO2 and water is discussed. The ease, low cost, one pot simplicity and scalability of our process cannot be overstated; we routinely make 1 kg batches in a lab setting. |