Abstract We report a novel synthetic strategy to prepare metal-polyphenolic framework through the coordination of manganese ion with a bio-available ellagic acid (EA). The self-assembly of EA with Mn ion results in a stable micro-sized ellagic acid-Mn (EAMn) particle with the features of green and low cost. Direct carbonization of the EAMn assembly leads to the formation of MnOx-Carbon (MnOx-C) nanocomposite with a mixed manganese oxide crystal structure and a relative high surface area. The MnOx-C hybrid materials exhibit superb performance for catalytic degradation of methylene blue with the assistant of H2O2.

中文翻译：

---

金属-多酚配位组件直接转化为 MnO x -碳纳米复合材料催化降解亚甲蓝

摘要 我们报告了一种新的合成策略，通过锰离子与生物可利用的鞣花酸 (EA) 的配位来制备金属-多酚骨架。EA与Mn离子的自组装产生稳定的微尺寸鞣花酸-Mn（EAMn）颗粒，具有绿色和低成本的特点。EAMn 组件的直接碳化导致形成具有混合锰氧化物晶体结构和相对高表面积的 MnOx-碳 (MnOx-C) 纳米复合材料。MnOx-C 杂化材料在 H2O2 的辅助下对亚甲蓝的催化降解表现出优异的性能。