Hydrothermal Synthesis of Metal-Polyphenol Coordination Crystals and Their Derived Metal/N-doped Carbon Composites for Oxygen Electrocatalysis
详细信息 查看全文
- 作者：Dr. Jing Wei ; Yan Liang ; Yaoxin Hu ; Dr. Biao Kong ; Jin Zhang ; Dr. Qinfen Gu ; Dr. Yuping Tong ; Dr. Xianbiao Wang ; Prof. San Ping Jiang and Prof. Huanting Wang
- 刊名：Angewandte Chemie International Edition
- 出版年：2016
- 出版时间：September 26, 2016
- 年：2016
- 卷：55
- 期：40
- 页码：12470-12474
- 全文大小：3317K
- ISSN：1521-3773
文摘
Cobalt (or iron)–polyphenol coordination polymers with crystalline frameworks are synthesized for the first time. The crystalline framework is formed by the assembly of metal ions and polyphenol followed by oxidative self-polymerization of the organic ligands (polyphenol) during hydrothermal treatment in alkaline condition. As a result, such coordination crystals are even partly stable in strong acid (such as 2 m HCl). The metal (Co or Fe)-natural abundant polyphenol (tannin) coordination crystals are a renewable source for the fabrication of metal/carbon composites as a nonprecious-metal catalyst, which show high catalytic performance for both oxygen reduction reaction and oxygen evolution reaction. Such excellent performance makes metal–polyphenol coordination crystals an efficient precursor to fabricate low-cost catalysts for the large-scale application of fuel cells and metal–air batteries.