Sintering Resistance and Catalytic Activity of Platinum Nanoparticles Covered with a Microporous Silica Layer Using Methyltriethoxysilane
Sintering Resistance and Catalytic Activity of Platinum Nanoparticles Covered with a Microporous Silica Layer Using Methyltriethoxysilane
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DOI：
10.1007/s10562-010-0311-6
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发表时间：
2010-03
影响因子：
2.8
通讯作者：
Keizo Nakagawa;Y. Tanimoto;Tetsuya Okayama;K. Sotowa;S. Sugiyama;S. Takenaka;M. Kishida
中科院分区：
文献类型：
--
作者：
Keizo Nakagawa;Y. Tanimoto;Tetsuya Okayama;K. Sotowa;S. Sugiyama;S. Takenaka;M. Kishida
摘要采用3-氨基丙基三乙氧基硅烷（APTES）和甲基三乙氧基硅烷（MTES）连续水解的方法，在炭黑（CB）负载的铂金属纳米颗粒表面包裹微孔二氧化硅层。包覆微孔二氧化硅层的纳米Pt/CB与Pt/CB相比，具有较高的耐高温烧结性能。结果表明，该催化剂热处理后对环己烷分解的催化活性高于Pt/CB。图形抽象
AbstractCarbon black (CB)-supported Pt metal nanoparticles were covered with microporous silica layers using successive hydrolysis of 3-aminopropyl-triethoxysilane (APTES) and methyltriethoxysilane (MTES). The Pt/CB nanoparticles covered with microporous silica layers showed the high sintering resistance of Pt metal particles to thermal treatment at 973 K in a H2atmosphere as compared with Pt/CB. As a result, this catalyst showed higher catalytic activity for cyclohexane decomposition than Pt/CB after thermal treatment.Graphical Abstract