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銷(xiāo)售一部:李經(jīng)理
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化學(xué)反應中的應用

來(lái)源: 時(shí)間:2012-09-10 09:48:11 瀏覽次數:

納米銀可以用作多種反應的催化劑。Li 及石川等人通過(guò)考察復合催化劑納米級Ag/H- ZSM- S 在CH4 選擇還原NO 反應中的活性和選擇性,發(fā)現用高壓反應釜含納米銀高于7%的催化劑時(shí),NO 轉化率顯著(zhù)提高
納米銀可以用作多種反應的催化劑。Li 及石川等人通過(guò)考察復合催化劑納米級Ag/H- ZSM- S 在CH4 選擇還原NO 反應中的活性和選擇性,發(fā)現用高壓反應釜含納米銀高于7%的催化劑時(shí),NO 轉化率顯著(zhù)提高,表明分子篩外表面納米銀的存在提高了銀催化劑在CH4 選擇還原NO 反應中的活性。再如,在聚苯乙烯和聚甲基丙烯酸甲酯的激光離解反應過(guò)程中,加入納米銀粒子,納米銀粒子導致聚合物炭化,在界面產(chǎn)生誘導石墨化作用; 同時(shí)納米銀粒子與聚甲基丙烯酸甲酯的界面發(fā)生反應,改變了粒子對激光能量的轉化方式,減弱其激光炭化作用??傊?,納米銀粒子的加入改變了聚合物體系對激光能量的吸收和轉換方式,導致其激光離解發(fā)生變化。
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