氧化物上的石墨碳层：用于生物质转化反应的稳定多相催化剂。
Graphitic-Carbon Layers on Oxides: Toward Stable Heterogeneous Catalysts for Biomass Conversion Reactions.
机构信息
Department of Chemical and Biological Engineering, University of New Mexico, MSC 01 1120, Albuquerque, NM 87131 (USA).
Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706 (USA).
出版信息
Angew Chem Int Ed Engl. 2015 Jun 26;54(27):7939-43. doi: 10.1002/anie.201502206. Epub 2015 May 14.
Conversion of biomass-derived molecules involves catalytic reactions under harsh conditions in the liquid phase (e.g., temperatures of 250 °C and possibly under either acidic or basic conditions). Conventional oxide-supported catalysts undergo pore structure collapse and surface area reduction leading to deactivation under these conditions. Here we demonstrate an approach to deposit graphitic carbon to protect the oxide surface. The heterogeneous catalysts supported on the graphitic carbon/oxide composite exhibit excellent stability (even under acidic conditions) for biomass conversion reactions.
生物质衍生分子的转化涉及在苛刻条件下（例如 250°C 的温度，可能在酸性或碱性条件下）在液相中进行的催化反应。传统的氧化物负载催化剂在这些条件下会经历孔结构塌陷和表面积减少，从而导致失活。在这里，我们展示了一种沉积石墨碳以保护氧化物表面的方法。负载在石墨碳/氧化物复合材料上的多相催化剂在生物质转化反应中表现出优异的稳定性（即使在酸性条件下也是如此）。
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