纳米多孔贵金属材料由于优良的化学性能和高的体积比表面积而有望成为许多应用领域的候选材料,如致动调节器、传感器和催化剂等。具有纳米孔结构的贵金属材料可采用已知的脱合金工艺来制取,在工艺过程中次贵金属原子(如Ag)用化学或电化学方法从前躯体合金中溶解掉,而主贵金属原子经过表面扩散和聚集产生纳米尺度的金属线与开孔,组成孔道相互连通并类似海绵体的结构。在纳米多 Nanoporous precious metal materials are expected to be candidates for many applications due to their excellent chemical properties and high specific surface area, such as actuator regulators, sensors and catalysts. The precious metal material having the nano-pore structure can be prepared by the known de-alloying process. During the process, the secondary precious metal atoms (such as Ag) are chemically or electrochemically dissolved from the precursor alloy while the main precious metal atoms are diffused through the surface And aggregates to produce nano-scale metal lines and openings, constituting the interconnected pore structure and a sponge-like structure. In nano more