Huda Miftakhul, Minamisawa Keigo, Tsukamoto Takamasa, Tanabe Makoto, Yamamoto Kimihisa
Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.
JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.
Angew Chem Int Ed Engl. 2019 Jan 21;58(4):1002-1006. doi: 10.1002/anie.201809530. Epub 2018 Dec 5.
Subnanocatalysts (SNCs) containing various noble metals (Cu, Ru, Rh, Pd, or Pt) with sizes of approximately 1 nm were synthesized using dendritic poly(phenylazomethine)s as a macromolecular template. These materials exhibit high catalytic performance during toluene oxidation without the use of harmful solvents or explosive oxidants, resulting in the formation of valuable organic products, including benzoic acid as the major product. In particular, Pt SNC with a narrow particle size distribution exhibits extraordinary catalytic activity, with a turnover frequency of 3238 atom h , which is 1700 times greater than that obtained by commercial Pt/C catalysts.
使用树枝状聚（苯甲亚胺）作为大分子模板合成了包含各种贵金属（铜、钌、铑、钯或铂）、尺寸约为1纳米的亚纳米催化剂（SNCs）。这些材料在甲苯氧化过程中表现出高催化性能，无需使用有害溶剂或易爆氧化剂，从而形成有价值的有机产物，其中苯甲酸是主要产物。特别是，具有窄粒度分布的铂SNC表现出非凡的催化活性，周转频率为3238原子·小时，比商业铂/碳催化剂的周转频率高1700倍。
