Fully Conjugated Poly(phthalocyanine) Scaffolds Derived from a Mechanochemical Approach Towards Enhanced Energy Storage

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Fan, Juntian
Wang, Tao
Thapaliya, Bishnu P.
Qiu, Liqi
Li, Meijia
Wang, Zongyu
Kobayashi, Takeshi
Popovs, Ilja
Yang, Zhenzhen
Dai, Sheng
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Iowa State University Digital Repository, Ames IA (United States)
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Ames National Laboratory

Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.

For more than 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the 17 DOE laboratories in that it is physically located on the campus of a major research university. Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent.

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Phthalocyanines (Pc)-derived materials represent an attractive category of porous organic scaffolds featured by extensive π-conjugated networks, but their construction is still limited to the solution-based pathways, producing materials with inferior conductivity and porosity. Herein, a mechanochemistry-driven approach was developed leveraging the on-surface polymerization of aromatic nitrile monomers with ortho-positioned dicyano groups in the presence of metal catalysts (magnesium, zinc, or aluminum) under neat and ambient conditions. Diverse Pc-functionalized conjugated porous networks (Pc-CPNs) were obtained featured by extensively and fully π-conjugated skeletons, high surface areas, and hierarchical porosities. The monomers in this mechanochemical approach could be extended to those difficult to be handled in solution-based procedures. The Pc-CPNs displayed attractive electrochemical performance as supercapacitor and anodes in batteries, together with superb long-term stability.
This is a manuscript of an article published as Fan, Juntian, Tao Wang, Bishnu P. Thapaliya, Liqi Qiu, Meijia Li, Zongyu Wang, Takeshi Kobayashi, Ilja Popovs, Zhenzhen Yang, and Sheng Dai. "Fully Conjugated Poly (phthalocyanine) Scaffolds Derived from a Mechanochemical Approach Towards Enhanced Energy Storage." Angewandte Chemie International Edition 61, no. 38 (2022): e202207607. DOI: 10.1002/anie.202207607. Copyright 2022 Wiley-VCH GmbH. Posted with permission. DOE Contract Number(s): AC02-07CH11358; AC05-00OR22725.
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