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¡¾Ó¢ÎÄÆªÃû¡¿ Syntheses of Silica-coated Palladium Nanoparticles Using a Water-in-oil Microemulsion
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¡¾×÷ÕßÓ¢ÎÄÃû¡¿ LV¦B; Fei ZHANG; Qing-Hong WANG; Ye WAN; Hui-Lin £¨State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry; Xiamen University; Xiamen 361005£©;
¡¾×÷Õßµ¥Î»¡¿ ÏÃÃÅ´óѧ¹ÌÌå±íÃæÎïÀí»¯Ñ§¹ú¼ÒÖØµãʵÑéÊÒÏÃÃÅ´óѧ»¯Ñ§Ïµ; ÏÃÃÅ´óѧ¹ÌÌå±íÃæÎïÀí»¯Ñ§¹ú¼ÒÖØµãʵÑéÊÒÏÃÃÅ´óѧ»¯Ñ§Ïµ ÏÃÃÅ;
¡¾ÎÄÏ׳ö´¦¡¿ »¯Ñ§Ñ§±¨, Acta Chimica Sinica, ±à¼­²¿ÓÊÏä 2004Äê 18ÆÚ  
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¡¾¹Ø¼ü´Ê¡¿ ÄÉÃ×Á£×Ó; Pd/SiO2; ΢ÈéÌåϵ;
¡¾Ó¢ÎĹؼü´Ê¡¿ nanoparticle; Pd/SiO 2; microemulsion;
¡¾ÕªÒª¡¿ ÒÔÂÈîÙËáΪîÙÔ´ ,Õý¹èËáÒÒõ¥ (TEOS)Ϊ¹èÔ´ ,ÀûÓÃÊ®ÁùÍé»ùÈý¼×»ùäå»¯ï§ (CTAB) /Õý¼º´¼ /Ë®¹¹³ÉµÄ΢ÈéÌåÏµÖÆ±¸Á˶þÑõ»¯¹è°ü¹üÄÉÃ×½ðÊôPdÁ£×Ó .ÆäÖÐPdµÄÁ£¾¶¿ÉÔÚ 5¡« 3 0nmµ÷±ä ,ÍⲿSiO2 ²ãµÄºñ¶È¿ÉÔÚ 5¡« 3 5nmµ÷±ä .Ïêϸ¿¼²ìÁËÂÈîÙËáºÍÕý¹èËáÒÒõ¥µÄŨ¶È¡¢Î¢ÈéÌåϵÖÐË®ºÍÕý¼º´¼µÄÁ¿µÈ²ÎÊý¶ÔÖÆ±¸µÄPd/SiO2 Á£×ӵĴóС¼°ÐÎ̬µÄÓ°Ïì .
¡¾Ó¢ÎÄÕªÒª¡¿ This paper described a method for the synthesis of silica-coated Pd nanoparticles by using the reduction of H 2PdCl 4 with NaBH 4 and hydrolysis of tetraethoxysilane (TEOS) in a water-in-oil microemulsion of cetyl-trimethyl- ammonium bromide (CTAB)/hexanol/water at 35 ¡æ. The size of the Pd particle and the thickness of the silica layer could be varied from 5 to 30 nm and from 5 to 35 nm, respectively. The factors governing the morphological structure and size of Pd/SiO 2 were investigated
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