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[×ÊÔ´] ½ðÊôÑõ»¯ÎïºÍÔØÌåÖ®¼äµÄÇ¿Ï໥×÷ÓÃ(SMOSI) - ¼ö¶ÁÃû¼ÒWACHS½ÌÊÚÂÛÎÄÖ®Èý

ÂÛÎijö´¦: Journal of Catalysis 146 (1994) 323-345

ºÜ¶à´ß»¯³æÃÇ¿ÉÄܶ¼ÖªµÀStrong Metal-Support Interaction
(SMSI)ÀíÂÛ, ·­Òë³ÉÖÐÎÄÊÇ: ½ðÊôºÍÔØÌåÖ®¼äµÄÇ¿Ï໥×÷ÓÃ. ¼ò¶øÑÔÖ®, ÉϸöÊÀ¼ÍµÄ1970Äê´ú×óÓÒ, ÈËÃÇ·¢ÏÖµ±Pt, Pd and RhµÈ¹ó½ðÊô¸ºÔØÔÚTiO2, ZrO2, Al2O3 and SiO2µÈ²»Í¬ÔØÌåÉÏʱ, ËùµÃµ½µÄ´ß»¯¼Á¶ÔÓÚͬһ·´Ó¦, Æä·´Ó¦»îÐÔÊDz»Ò»ÑùµÄ. Ñо¿±íÃ÷, ÕâÊÇÓÉÓÚ¹ó½ðÊôµÄd¹ìµÀµç×ÓºÍÔØÌåµÄd¹ìµÀµç×ÓÖ®¼äÇ¿ÁÒÏ໥×÷ÓÃÔì³ÉµÎ.

µ«ÖªµÀStrong Metal-Oxide-Support Interaction
(SMOSI)ÀíÂÛµÎÈ˿֞ͺÜÉÙÁË,±¾´ß»¯¹·Ò²ÊÇ×î½ü¶ÁÃÀ¹ú¹âÆ×´ß»¯Ãû¼ÒWACHS½ÌÊÚµÄÂÛÎÄʱ²Å×¢Òâµ½. ´ËÀíÂÛÈô·­Òë³ÉÖÐÎÄÊÇ: ½ðÊôÑõ»¯ÎïºÍÔØÌåÖ®¼äµÄÇ¿Ï໥×÷ÓÃ. ºÜÓÐÒâ˼, Ò²ºÜÓÐÓÃ, Ïà¼ûºÞÍí°¡, Òò´ËÁ¦¼öѪ¼ö¸ø´ß»¯³æÃÇ.

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ÒÔ¼×´¼ÔÚ΢·ÖÌõ¼þϲ¿·ÖÑõ»¯×÷Ϊ̽Õë·´Ó¦, ̽ÌÖÁËSiO2, ZrO2, TiO2, Nb2O5ºÍAl2O3µÈ²»Í¬ÔØÌå¸ºÔØµÄV2O5µÄ·´Ó¦ÐÔÄÜ, ·¢ÏÖµ½V2O5µÄ·´Ó¦»îÐÔºÍÑ¡ÔñÐÔÊDz»Ò»ÑùµÎ. µ«ÔÚËùÓв»Í¬ÔØÌåµÄ´ß»¯¼ÁÉÏ, ·´Ó¦µÄ»î»¯ÄÜÈ´ºÜÏàËÆ, »ù±¾ÉÏÊÇ~20 kcal/mol. ½áºÏԭλRAMANµÄ±íÕ÷½á¹û, ËûÃÇ·¢ÏÖ, ·´Ó¦µÄTOFÖµºÍV-O-SUPPORT (TiO2, ZrO2, Al2O3 and SiO2)¼üÏà¹Ø. Òò´ËËûÃǵĽáÂÛÊÇ, ½ðÊôÑõ»¯Îï¸ºÔØÔÚÔØÌåÉÏʱ, Ï໥֮¼äÓÐÇ¿Ï໥×÷ÓÃ. ÕâÖÖÇ¿Ï໥×÷Óõ¼ÖÂÁËͬÑùÒ»ÖÖ»îÐÔ×é·Ý¸ºÔØÓÚ²»Í¬ÔØÌåʱ, ¾ßÓв»Í¬µÄ·´Ó¦ÐÔÄÜ.

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