Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
J Am Chem Soc. 2012 Jul 4;134(26):10894-8. doi: 10.1021/ja302083n. Epub 2012 Jun 22.
Monolithic conductive titanium oxides Ti(n)O(2n-1) (n = 2, 3, 4, 6) with well-defined macropores have been successfully prepared as a single phase, via reduction of a macroporous TiO(2) precursor monolith using zirconium getter. Despite substantial removal of oxide ions, all the reduced monoliths retain the macropore properties of the precursor, i.e., uniform pore size distribution and pore volume. Furthermore, compared to commercial porous Ebonex (shaped conductive Ti(n)O(2n-1)), the bulk densities (1.8 g cm(-3)) are half, and the porosities (60%) are about 3 times higher. The obtained Ti(n)O(2n-1) (n = 2, 3, 4, 6) macroporous monoliths could find applications as electrodes for many electrochemical reactions.
具有明确大孔的整体式导电钛氧化物 Ti(n)O(2n-1)（n = 2、3、4、6）已成功制备为单相，方法是使用锆吸气剂还原大孔 TiO(2)前体整体式材料。尽管氧化物离子大量减少，但所有还原的整体式材料都保留了前体的大孔特性，即均匀的孔径分布和孔体积。此外，与商业多孔 Ebonex（形状导电 Ti(n)O(2n-1)）相比，其体密度（1.8 g cm(-3)) 减半，孔隙率（60%）约高 3 倍。所获得的 Ti(n)O(2n-1)（n = 2、3、4、6）大孔整体式材料可作为许多电化学反应的电极使用。
