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Tetradecyltrimethyl ammonium bromide capped Pd nanoparticles were coated with SiO2 through the hydrolysis of tetraethylorthosilicate. The Pd@SiO2 nanocatalysts with 1.9−2.4 nm mesoporous SiO2 shells were generated after removal of tetradecyl trimethyl ammonium bromide from Pd@SiO2 core−shell particles by calcination and following H2 reduction. [ Last edited by zhtear99 on 2013-5-6 at 20:18 ] |
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zhtear99
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ÒâÐı¦±¦: ½ð±Ò+2, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-05-07 20:49:03
hanches: ½ð±Ò+2, ʦ¸µµÄ»Ø´ðºÜϸÖÂ~~~BB½±Àø~~~ 2013-05-07 20:57:56
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ÒâÐı¦±¦: ½ð±Ò+2, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-05-07 20:49:03
hanches: ½ð±Ò+2, ʦ¸µµÄ»Ø´ðºÜϸÖÂ~~~BB½±Àø~~~ 2013-05-07 20:57:56
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Tetradecyltrimethyl ammonium bromide£ºÊ®ËÄÍé»ùÈý¼×»ùäå»¯ï§ Pd nanoparticles£ºîÙÄÉÃ׿ÅÁ£ tetraethylorthosilicate£º¹èËáËÄÒÒõ¥ nanocatalysts£ºÄÉÃ×´ß»¯¼Á mesoporous£º¶à¿×£»½é¿× calcination£ºìÑÉÕ ¾¹ý¹èËáËÄÒÒõ¥µÄË®½â£¬º¬îÙÄÉÃ׿ÅÁ£µÄÊ®ËÄÍé»ùÈý¼×»ùä廯炙á¹üÉÏSiO2¡£ÔÙ¾¹ýìÑÉÕºÍÇâÆø»¹Ô£¬½«Ê®ËÄÍé»ùÈý¼×»ùä廯ï§È¥µô£¬¾Í¿ÉÖÆ³É¿×¾¶ÔÚ1.9~2.4 nmÖ®¼äµÄ¶à¿×Pd@SiO2 ÄÉÃ×´ß»¯¼Á¡£ |

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