Constructing N-Containing Poly(p-Phenylene) (PPP) Films Through A Cathodic-Dehalogenation Polymerization Method

Xiang Wang; Lei Zhang; Jinghang Wu; Miaomiao Xue; Qianfeng Gu; Junlei Qi; Fangyuan Kang; Qiyuan He; Xiaoyan Zhong; Qichun Zhang

doi:10.1002/smtd.202400185

Constructing N-Containing Poly(p-Phenylene) (PPP) Films Through A Cathodic-Dehalogenation Polymerization Method

Xiang Wang, Lei Zhang, Jinghang Wu, Miaomiao Xue, Qianfeng Gu, Junlei Qi, Fangyuan Kang, Qiyuan He, Xiaoyan Zhong, Qichun Zhang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

42 Downloads (CityUHK Scholars)

Abstract

Developing the films of N-containing unsubstituted poly(p-phenylene) (PPP) films for diverse applications is significant and highly desirable because the replacement of sp² C atoms with sp² N atoms will bring novel properties to the as-prepared polymers. In this research, an electrochemical-dehalogenation polymerization strategy is employed to construct two N-containing PPP films under constant potentials, where 2,5-diiodopyridine (DIPy) and 2,5-dibromopyrazine (DBPz) are used as starting agents. The corresponding polymers are named CityU-23 (for polypyridine) and CityU-24 (for polypyrazine). Moreover, it is found that both polymers can form films in situ on different conductive substrates (i.e., silicon, gold, ITO, and nickel), satisfying potential device fabrication. Furthermore, the as-obtained thin films of CityU-23 and CityU-24 exhibit good performance of alkaline hydrogen evolution reaction with the overpotential of 212.8 and 180.7 mV and the Tafel slope of 157.0 and 122.4 mV dec⁻¹, respectively.

© 2024 The Authors. Small Methods published by Wiley-VCH GmbH.

Original language	English
Article number	2400185
Journal	Small Methods
Volume	8
Issue number	11
Online published	15 Apr 2024
DOIs	https://doi.org/10.1002/smtd.202400185
Publication status	Published - 20 Nov 2024

Funding

Q.Z. thanks the funding support from City University of Hong Kong (9380117, 7005620, 7020040, and 7020089) and Hong Kong Institute for Advanced Study, City University of Hong Kong, Hong Kong, P. R. China. X.Z. acknowledge the financial supports from National Natrual Science Foundation of China (52171014), Science, Technology and Iinnovation Commission of Shenzhen Municipality (SGDX20210823104200001, JCYJ20210324134402007), Research Grants Council of Hong Kong SAR (E-CityU101/20, C1013-23E, CityU 11302121, CityU 11309822), Sino-German Center for Research Promotion (M-0265), and CityU (9610484, 9680291, 9678288, 9610607).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

N-containing poly(p-phenylene) (PPP)
cathodic polymerization
electrochemical dehalogenation
electrochemical hydrogen evolution
films

Publisher's Copyright Statement

This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

RGC Funding Information

RGC-funded

Access Output

10.1002/smtd.202400185

210686758.pdfFinal Published version, 1.61 MBLicence: CC BY

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{241c0cd4dcb34bba8fdc171aa3dbb07a,

title = "Constructing N-Containing Poly(p-Phenylene) (PPP) Films Through A Cathodic-Dehalogenation Polymerization Method",

abstract = "Developing the films of N-containing unsubstituted poly(p-phenylene) (PPP) films for diverse applications is significant and highly desirable because the replacement of sp2 C atoms with sp2 N atoms will bring novel properties to the as-prepared polymers. In this research, an electrochemical-dehalogenation polymerization strategy is employed to construct two N-containing PPP films under constant potentials, where 2,5-diiodopyridine (DIPy) and 2,5-dibromopyrazine (DBPz) are used as starting agents. The corresponding polymers are named CityU-23 (for polypyridine) and CityU-24 (for polypyrazine). Moreover, it is found that both polymers can form films in situ on different conductive substrates (i.e., silicon, gold, ITO, and nickel), satisfying potential device fabrication. Furthermore, the as-obtained thin films of CityU-23 and CityU-24 exhibit good performance of alkaline hydrogen evolution reaction with the overpotential of 212.8 and 180.7 mV and the Tafel slope of 157.0 and 122.4 mV dec−1, respectively.{\textcopyright} 2024 The Authors. Small Methods published by Wiley-VCH GmbH.",

keywords = "N-containing poly(p-phenylene) (PPP), cathodic polymerization, electrochemical dehalogenation, electrochemical hydrogen evolution, films",

author = "Xiang Wang and Lei Zhang and Jinghang Wu and Miaomiao Xue and Qianfeng Gu and Junlei Qi and Fangyuan Kang and Qiyuan He and Xiaoyan Zhong and Qichun Zhang",

year = "2024",

month = nov,

day = "20",

doi = "10.1002/smtd.202400185",

language = "English",

volume = "8",

number = "11",

}

TY - JOUR

T1 - Constructing N-Containing Poly(p-Phenylene) (PPP) Films Through A Cathodic-Dehalogenation Polymerization Method

AU - Wang, Xiang

AU - Zhang, Lei

AU - Wu, Jinghang

AU - Xue, Miaomiao

AU - Gu, Qianfeng

AU - Qi, Junlei

AU - Kang, Fangyuan

AU - He, Qiyuan

AU - Zhong, Xiaoyan

AU - Zhang, Qichun

PY - 2024/11/20

Y1 - 2024/11/20

N2 - Developing the films of N-containing unsubstituted poly(p-phenylene) (PPP) films for diverse applications is significant and highly desirable because the replacement of sp2 C atoms with sp2 N atoms will bring novel properties to the as-prepared polymers. In this research, an electrochemical-dehalogenation polymerization strategy is employed to construct two N-containing PPP films under constant potentials, where 2,5-diiodopyridine (DIPy) and 2,5-dibromopyrazine (DBPz) are used as starting agents. The corresponding polymers are named CityU-23 (for polypyridine) and CityU-24 (for polypyrazine). Moreover, it is found that both polymers can form films in situ on different conductive substrates (i.e., silicon, gold, ITO, and nickel), satisfying potential device fabrication. Furthermore, the as-obtained thin films of CityU-23 and CityU-24 exhibit good performance of alkaline hydrogen evolution reaction with the overpotential of 212.8 and 180.7 mV and the Tafel slope of 157.0 and 122.4 mV dec−1, respectively.© 2024 The Authors. Small Methods published by Wiley-VCH GmbH.

AB - Developing the films of N-containing unsubstituted poly(p-phenylene) (PPP) films for diverse applications is significant and highly desirable because the replacement of sp2 C atoms with sp2 N atoms will bring novel properties to the as-prepared polymers. In this research, an electrochemical-dehalogenation polymerization strategy is employed to construct two N-containing PPP films under constant potentials, where 2,5-diiodopyridine (DIPy) and 2,5-dibromopyrazine (DBPz) are used as starting agents. The corresponding polymers are named CityU-23 (for polypyridine) and CityU-24 (for polypyrazine). Moreover, it is found that both polymers can form films in situ on different conductive substrates (i.e., silicon, gold, ITO, and nickel), satisfying potential device fabrication. Furthermore, the as-obtained thin films of CityU-23 and CityU-24 exhibit good performance of alkaline hydrogen evolution reaction with the overpotential of 212.8 and 180.7 mV and the Tafel slope of 157.0 and 122.4 mV dec−1, respectively.© 2024 The Authors. Small Methods published by Wiley-VCH GmbH.

KW - N-containing poly(p-phenylene) (PPP)

KW - cathodic polymerization

KW - electrochemical dehalogenation

KW - electrochemical hydrogen evolution

KW - films

UR - http://www.scopus.com/inward/record.url?scp=85190291462&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85190291462&origin=recordpage

U2 - 10.1002/smtd.202400185

DO - 10.1002/smtd.202400185

M3 - RGC 21 - Publication in refereed journal

C2 - 38616739

SN - 2366-9608

VL - 8

JO - Small Methods

JF - Small Methods

IS - 11

M1 - 2400185

ER -

Constructing N-Containing Poly(p-Phenylene) (PPP) Films Through A Cathodic-Dehalogenation Polymerization Method

Abstract

Funding

UN SDGs

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

CRF: High Spatiotemporal Resolution Scanning Electron Microscope Facility for Multimodal Dynamic Imaging in Materials Science and Physics

GRF: Atomic Scale Imaging of Magnetic Circular Dichroism in Collinear Antiferromagnets

EU_RGC: Three Dimensional Characterization of Magnetic Solitons by Electron Magnetic Dichroism

Cite this

Constructing N-Containing Poly(p-Phenylene) (PPP) Films Through A Cathodic-Dehalogenation Polymerization Method

Abstract

Funding

UN SDGs

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

CRF: High Spatiotemporal Resolution Scanning Electron Microscope Facility for Multimodal Dynamic Imaging in Materials Science and Physics

GRF: Atomic Scale Imaging of Magnetic Circular Dichroism in Collinear Antiferromagnets

EU_RGC: Three Dimensional Characterization of Magnetic Solitons by Electron Magnetic Dichroism

Cite this