摘要
介绍了化学还原法、电化学法、化学气相沉积法、微波辅助法和模板法等纳米贵金属催化剂的制备方法,论述了各种方法的制备过程和研究进展,指出纳米贵金属催化剂现有的制备技术还不够成熟,较难实现工业化;纳米催化剂性能稳定控制技术尚未掌握,在空气中极易被氧化、吸湿和团聚,性能不够稳定等问题。需要在提高催化反应效率、优化反应途径和提高反应速率等方面进行广泛深入研究和探讨,尽早使纳米贵金属催化剂实用化。
The preparation methods for nano-sized noble metal catalysts were reviewed in detail,such as chemical reduction,electrochemistry,chemical vapor deposition,microwave and templates.The existing problems in this aspect are pointed out as follows:the preparation technology and the control technology of the stability of nano-sized noble metal catalysts are imperfect;the catalysts are easily oxidized in the air,adsorbed moisture and agglomerated quickly,and had low stability.The research on enhancing effi- ciency of catalytic reaction,optimizing reaction paths and improving reaction rate will be carried out and the commercial application of the nano-sized noble metal catalysts will be realized as soon as possible.
出处
《工业催化》
CAS
2009年第6期1-6,共6页
Industrial Catalysis
关键词
催化化学
纳米
贵金属
制备
catalytic chemistry
nano-sized catalyst
noble metal catalyst
preparation
