CRC, Hokkaido University, Nishi 10, Kita 21, Kita-ku, Sapporo 001-0021, Japan.
J Am Chem Soc. 2011 Feb 9;133(5):1150-2. doi: 10.1021/ja106285p. Epub 2011 Jan 4.
Body-centered-cubic type CuPd nanoalloys were synthesized by a chemical reduction method. Photocatalytic hydrogen evolution and nitrate reduction were simultaneously examined over CuPd nanoalloys deposited on TiO(2) (CuPd/TiO(2)). The efficiency of hydrogen evolution over CuPd/TiO(2) was better than that over Pd/TiO(2). As for nitrate reduction, ammonia was selectively (78%) produced with hydrogen generated photocatalytically over CuPd/TiO(2). The continuous generation of nascent hydrogen atoms on the surface of the CuPd nanoalloy, where Cu and Pd are homogeneously mixed, led to the high selectivity for ammonia.
体心立方型 CuPd 纳米合金通过化学还原法合成。在沉积于 TiO2（CuPd/TiO2）上的 CuPd 纳米合金上同时进行光催化析氢和硝酸盐还原反应。CuPd/TiO2 上的析氢效率优于 Pd/TiO2。对于硝酸盐还原，在 CuPd/TiO2 上光催化生成的氢气选择性地（78%）生成了氨。在 Cu 和 Pd 均匀混合的 CuPd 纳米合金表面上不断生成的新生氢原子导致对氨具有高选择性。
