title: Hydrothermal Synthesis of Metal-Polyphenol Coordination Crystals and Their Derived Metal/N-doped Carbon Composites for Oxygen Electrocatalysis.
abstract: 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.
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
authors: Jing
authors: 0000-0001-9413-2650
authors: J
authors: Wei
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
authors: Yan
authors: Y
authors: Liang
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
authors: Yaoxin
authors: Y
authors: Hu
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
authors: Biao
authors: B
authors: Kong
authors: Fuels and Energy Technology Institute & Department of Chemical Engineering, Curtin University, Perth, WA, 6102, Australia.
authors: Jin
authors: J
authors: Zhang
authors: Australian Synchrotron, Clayton, Victoria, 3168, Australia.
authors: Qinfen
authors: Q
authors: Gu
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
authors: Yuping
authors: Y
authors: Tong
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia.
authors: Xianbiao
authors: X
authors: Wang
authors: Fuels and Energy Technology Institute & Department of Chemical Engineering, Curtin University, Perth, WA, 6102, Australia.
authors: San Ping
authors: SP
authors: Jiang
authors: Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia. huanting.wang@monash.edu.
authors: Huanting
authors: H
authors: Wang
keywords: cobalt; metal-tannin framework; nonprecious-metal catalysts; oxygen reduction reaction; polyphenol