NDLI: An ethynyl-linked Fe/Co heterometallic phthalocyanine conjugated polymer for the oxygen reduction reaction

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An ethynyl-linked Fe/Co heterometallic phthalocyanine conjugated polymer for the oxygen reduction reaction

Content Provider	Semantic Scholar
Author	Liu, Wenping Hou, Yuxia Pan, Houhe Liu, Wenbo Qi, Dongdong Wang, Kang Jiang, Jianzhuang Yao, Xiangdong
Copyright Year	2018
Abstract	The Sonogashira–Hagihara coupling reaction is utilized to fabricate ethynyl-linked phthalocyanine (Pc) 2D conjugated polymers (CPs), affording the unprecedented heterometallic compound Fe0.5Co0.5Pc-CP and homometallic analogues MPc-CPs (M = Fe, Co) for comparison. It is confirmed that Fe and Co ions are well-defined/distributed with one metal ion encircled by four neighboring ions of the second metal in close proximity in the heterometallic conjugated polymer. Compared to the homometallic analogues, the bimetallic polymer Fe0.5Co0.5Pc-CP is more highly efficient for the oxygen reduction reaction (ORR), indicating that the interaction of Fe and Co ions may provide a synergistic effect on the activity. Fe0.5Co0.5Pc-CP exhibits similar ORR catalytic activity and superior stability compared to commercial Pt/C in alkaline media. Density functional theory calculations reveal that a fast 2 × 2e− synergistic catalytic reaction pathway is essential for the excellent ORR in Fe0.5Co0.5Pc-CP.
Starting Page	8349
Ending Page	8357
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1039/c8ta00516h
Volume Number	6
Alternate Webpage(s)	http://www.rsc.org/suppdata/c8/ta/c8ta00516h/c8ta00516h1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/c8ta00516h
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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