Sugahara Kosei, Kamata Keigo, Muratsugu Satoshi, Hara Michikazu
Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan.
Precursory Research for Embryonic Science and Technology (PRESTO) and Advanced Low Carbon Technology Research and Development Program (ALCA), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi 332-0012, Japan.
ACS Omega. 2017 Apr 24;2(4):1608-1616. doi: 10.1021/acsomega.7b00146. eCollection 2017 Apr 30.
A simple and efficient synthetic method for preparing high-surface-area perovskites was investigated by focusing on the importance of the formation of an amorphous precursor. Hexagonal SrMnO with high surface area was successfully synthesized by simple calcination of the amorphous precursor prepared using and metal instead of metal , without pH adjustment. The specific surface area reached up to ca. 50 m g, which is much larger than that for SrMnO synthesized by previously reported methods. The catalytic activity for heterogeneous liquid-phase aerobic oxidation was significantly improved in comparison with the polymerized complex method, and the present catalytic system was applicable to the oxidation of various substrates.
通过关注非晶态前驱体形成的重要性，研究了一种制备高比表面积钙钛矿的简单有效合成方法。通过简单煅烧使用[具体物质]和金属[X]而非金属[Y]制备的非晶态前驱体，成功合成了具有高比表面积的六方相SrMnO，无需调节pH值。比表面积达到约50 m²/g，远大于先前报道方法合成的SrMnO的比表面积。与聚合络合法相比，多相液相需氧氧化的催化活性显著提高，且本催化体系适用于各种底物的氧化。
