Nitrogen functionalized carbon nanostructures supported Pd and Au–Pd NPs as catalyst for alcohols oxidation
Nitrogen functionalized carbon nanostructures supported Pd and Au–Pd NPs as catalyst for alcohols oxidation
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DOI：
10.1016/j.cattod.2010.01.052
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发表时间：
2010-11
期刊：
影响因子：
5.3
通讯作者：
A. Villa;Di Wang;P. Spontoni;Rosa Arrigo;D. Su;L. Prati
中科院分区：
文献类型：
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作者：
A. Villa;Di Wang;P. Spontoni;Rosa Arrigo;D. Su;L. Prati
碳纳米纤维 (CNF) PR24-PS 和碳纳米管 (CNT) Baytubes 通过硝酸氧化和气态 NH3 进一步胺化进行功能化。因此，通过 PVA/NaBH4 系统制备了 Au 和 Au-Pd 纳米颗粒，并将其锚定在原始碳纳米结构（CNS）和 N-CNS（氮功能化碳纳米结构）的表面上。 TEM分析表明，氮官能团的引入改善了金属纳米粒子在载体表面上的分散。当在醇的液相氧化中进行测试时，这种现象导致基于 N-CNS 的催化剂相对于原始 CNS 的活性有所提高。
Carbon nanofibers (CNFs) PR24-PS and carbon nanotubes (CNTs) Baytubes were functionalized by oxidation with nitric acid and further amination with gaseous NH3. Thus Au and Au–Pd nanoparticles were prepared by PVA/NaBH4system and anchored on the surface of pristine carbon nanostructures (CNS) and N-CNS (nitrogen functionalized carbon nanostructures). TEM analysis revealed that the introduction of nitrogen functionalities improves the dispersion of the metal nanoparticles on the surface of the support. This phenomena leads to an improved activity of N-CNS based catalysts with respect to pristine CNS when tested in the liquid phase oxidation of alcohols.