Crystalline Porphyrazine-Linked Fused Aromatic Networks with High Proton Conductivity.

Yoon-Kwang Im; Dong-Gue Lee; Hyuk-Jun Noh; Soo-Young Yu; Javeed Mahmood; Sang-Young Lee; Jong-Beom Baek

doi:10.1002/anie.202203250

Crystalline Porphyrazine-Linked Fused Aromatic Networks with High Proton Conductivity.

Yoon-Kwang Im, Dong-Gue Lee, Hyuk-Jun Noh, Soo-Young Yu, Javeed Mahmood, Sang-Young Lee, Jong-Beom Baek

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Fused aromatic networks (FANs) have been studied in efforts to overcome the low physicochemical stability of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), while preserving crystallinity. Herein, we describe the synthesis of a highly stable and crystalline FAN (denoted as Pz-FAN) using pyrazine-based building blocks to form porphyrazine (Pz) linkages via an irreversible reaction. Unlike most COFs and FANs, which are synthesized from two different building blocks, the new Pz-FAN is formed using a single building block by self-cyclotetramerization. Controlled and optimized reaction conditions result in a highly crystalline Pz-FAN with physicochemical stability. The newly prepared Pz-FAN displayed a high magnitude (1.16×10−2 S cm−1) of proton conductivity compared to other reported FANs and polymers. Finally, the Pz-FAN-based membrane was evaluated for a proton-exchange membrane fuel cell (PEMFC), which showed maximum power and current densities of 192 mW cm−2 and 481 mA cm−2, respectively.

Original language	English (US)
Journal	Angewandte Chemie (International ed. in English)
DOIs	https://doi.org/10.1002/anie.202203250
State	Published - Apr 20 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-05-13
Acknowledgements: Supported by the Creative Research Initiative (CRI, 2014R1A3A2069102), the Science Research Center (SRC, 2016R1A5A1009405) the Young Researcher (2019R1C1C1006650) programs through the National Research Foundation (NRF) of Korea, and the U-K Brand Project (1.200096.01) of UNIST.

ASJC Scopus subject areas

General Chemistry
Catalysis

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10.1002/anie.202203250

Cite this

@article{6c49811d5e2d479db0e1baf3adeee813,

title = "Crystalline Porphyrazine-Linked Fused Aromatic Networks with High Proton Conductivity.",

abstract = "Fused aromatic networks (FANs) have been studied in efforts to overcome the low physicochemical stability of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), while preserving crystallinity. Herein, we describe the synthesis of a highly stable and crystalline FAN (denoted as Pz-FAN) using pyrazine-based building blocks to form porphyrazine (Pz) linkages via an irreversible reaction. Unlike most COFs and FANs, which are synthesized from two different building blocks, the new Pz-FAN is formed using a single building block by self-cyclotetramerization. Controlled and optimized reaction conditions result in a highly crystalline Pz-FAN with physicochemical stability. The newly prepared Pz-FAN displayed a high magnitude (1.16×10−2 S cm−1) of proton conductivity compared to other reported FANs and polymers. Finally, the Pz-FAN-based membrane was evaluated for a proton-exchange membrane fuel cell (PEMFC), which showed maximum power and current densities of 192 mW cm−2 and 481 mA cm−2, respectively.",

author = "Yoon-Kwang Im and Dong-Gue Lee and Hyuk-Jun Noh and Soo-Young Yu and Javeed Mahmood and Sang-Young Lee and Jong-Beom Baek",

note = "KAUST Repository Item: Exported on 2022-05-13 Acknowledgements: Supported by the Creative Research Initiative (CRI, 2014R1A3A2069102), the Science Research Center (SRC, 2016R1A5A1009405) the Young Researcher (2019R1C1C1006650) programs through the National Research Foundation (NRF) of Korea, and the U-K Brand Project (1.200096.01) of UNIST.",

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doi = "10.1002/anie.202203250",

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AU - Im, Yoon-Kwang

AU - Lee, Dong-Gue

AU - Noh, Hyuk-Jun

AU - Yu, Soo-Young

AU - Mahmood, Javeed

AU - Lee, Sang-Young

AU - Baek, Jong-Beom

N1 - KAUST Repository Item: Exported on 2022-05-13 Acknowledgements: Supported by the Creative Research Initiative (CRI, 2014R1A3A2069102), the Science Research Center (SRC, 2016R1A5A1009405) the Young Researcher (2019R1C1C1006650) programs through the National Research Foundation (NRF) of Korea, and the U-K Brand Project (1.200096.01) of UNIST.

PY - 2022/4/20

Y1 - 2022/4/20

N2 - Fused aromatic networks (FANs) have been studied in efforts to overcome the low physicochemical stability of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), while preserving crystallinity. Herein, we describe the synthesis of a highly stable and crystalline FAN (denoted as Pz-FAN) using pyrazine-based building blocks to form porphyrazine (Pz) linkages via an irreversible reaction. Unlike most COFs and FANs, which are synthesized from two different building blocks, the new Pz-FAN is formed using a single building block by self-cyclotetramerization. Controlled and optimized reaction conditions result in a highly crystalline Pz-FAN with physicochemical stability. The newly prepared Pz-FAN displayed a high magnitude (1.16×10−2 S cm−1) of proton conductivity compared to other reported FANs and polymers. Finally, the Pz-FAN-based membrane was evaluated for a proton-exchange membrane fuel cell (PEMFC), which showed maximum power and current densities of 192 mW cm−2 and 481 mA cm−2, respectively.

AB - Fused aromatic networks (FANs) have been studied in efforts to overcome the low physicochemical stability of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), while preserving crystallinity. Herein, we describe the synthesis of a highly stable and crystalline FAN (denoted as Pz-FAN) using pyrazine-based building blocks to form porphyrazine (Pz) linkages via an irreversible reaction. Unlike most COFs and FANs, which are synthesized from two different building blocks, the new Pz-FAN is formed using a single building block by self-cyclotetramerization. Controlled and optimized reaction conditions result in a highly crystalline Pz-FAN with physicochemical stability. The newly prepared Pz-FAN displayed a high magnitude (1.16×10−2 S cm−1) of proton conductivity compared to other reported FANs and polymers. Finally, the Pz-FAN-based membrane was evaluated for a proton-exchange membrane fuel cell (PEMFC), which showed maximum power and current densities of 192 mW cm−2 and 481 mA cm−2, respectively.

UR - http://hdl.handle.net/10754/676854

UR - https://onlinelibrary.wiley.com/doi/10.1002/anie.202203250

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DO - 10.1002/anie.202203250

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SN - 1433-7851

JO - Angewandte Chemie (International ed. in English)

JF - Angewandte Chemie (International ed. in English)

ER -

Crystalline Porphyrazine-Linked Fused Aromatic Networks with High Proton Conductivity.

Abstract

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