In Situ Generation of Active Pd Nanoparticles within a Macroreticular Acidic Resin: Efficient Catalyst for the Direct Synthesis of Hydrogen Peroxide
In Situ Generation of Active Pd Nanoparticles within a Macroreticular Acidic Resin: Efficient Catalyst for the Direct Synthesis of Hydrogen Peroxide
复制标题
DOI：
10.1021/jz100509x
复制
发表时间：
2010-05
影响因子：
5.7
通讯作者：
K. Mori;Akihiro Hanafusa;M. Che;H. Yamashita
中科院分区：
文献类型：
--
作者：
K. Mori;Akihiro Hanafusa;M. Che;H. Yamashita
在其网状结构内具有SO3H官能团的酸性树脂充当用于原位形成负责从H2和O2直接合成过氧化氢的高活性Pd纳米颗粒（NPs）的有效载体。通过X射线吸收精细结构（XAFS）和透射电子显微镜（TEM）的表征表明，不仅树脂的酸度，而且Pd纳米颗粒的平均尺寸是实现高效催化性能的关键因素。酸性树脂有效地作为载体，而碱性树脂几乎不激活反应，不诱导任何结构变化周围的Pd中心。
An acidic resin bearing SO3H functional groups within its reticular structure acts as an efficient support for the in situ formation of highly active Pd nanoparticles (NPs) responsible for the direct synthesis of hydrogen peroxide from H2 and O2. Characterization by means of X-ray absorption fine structure (XAFS) and transmission electron microscopy (TEM) reveals that not only the acidity of the resins but also the mean size of the Pd NPs are crucial factors in achieving efficient catalytic performance. The acidic resins act effectively as supports, while basic resins hardly activate the reaction and do not induce any structural change around the Pd center.