Article
Chemistry, Multidisciplinary
Meng Zhang, Bei-Bei Zhang, Qijie Lin, Ziling Jiang, Jianqi Zhang, Yawen Li, Shurui Pei, Xiao Han, Haigen Xiong, Xinyu Liang, Yuze Lin, Zhixiang Wei, Fengjiao Zhang, Xin Zhang, Zhi-Xiang Wang, Qinqin Shi, Hui Huang
Summary: An efficient Pd and Cu co-catalyzed direct arylation polycondensation was developed via inert C-S bond cleavage of aryl thioethers. This method showed high robustness and selectivity in synthesizing high performance conjugated polymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Polymer Science
Liwei Ye, Tanin Hooshmand, Barry C. Thompson
Summary: This study reports a highly efficient and recyclable catalyst Silicat Pd-DPP for multiple batch CP synthesis, achieving up to five batches of polymers without structural disparity, providing a truly low-cost flow chemistry method for industrial scale CP synthesis.
Article
Materials Science, Multidisciplinary
Na Chen, Ling-Jun Yang, Yan Chen, Hui Liu, Hong-Yan Xie, Lin Hu, Zaifang Li, Shi-Yong Liu
Summary: Poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-b'] dithio-phene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'-bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c']dithiophene-4,8-dione))] (PBDB-T), one of the most important donor polymers in organic photovoltaics (OPVs), has been successfully synthesized for the first time via atom-economic direct C-H arylation polymerization (DArP). The effects of reaction parameters on the molecular weights, polydispersity index, optical properties, device performance, and morphologies have been systematically investigated. An optimal DArP protocol towards PBDB-T has been developed, providing a guideline for the synthesis of high-performance OPV materials in an atom-economic way.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Yorck Mohr, Marcelo Alves-Favaro, Remy Rajapaksha, Gaelle Hisler, Alisa Ranscht, Partha Samanta, Chantal Lorentz, Mathis Duguet, Caroline Mellot-Draznieks, Elsje Alessandra Quadrelli, Florian M. Wisser, Jerome Canivet
Summary: The study demonstrates the successful development of a heterogeneous nickel catalyst using a porous organic polymer as a macroligand, which can be applied to various arylation reactions with good recyclability.
Article
Chemistry, Organic
Mona Hamidzad Sangachin, Samuel Brassard, Mario Leclerc
Summary: Direct (hetero)arylation polymerization (DHAP) is a promising method for the preparation of conjugated polymers that is simple, low cost, and environmentally friendly. However, the selectivity of the coupling reaction has always been a challenge. This study investigated the conditions for C-C couplings between 2-methylthiophene and 2-thiophenecarbonitrile, with one of the partners brominated, and found that the best conditions are achieved when the electron withdrawing moiety is halogenated.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Correction
Chemistry, Multidisciplinary
Zhi-Rong Tan, Yu-Qin Xing, Jing-Zhao Cheng, Guang Zhang, Zhao-Qi Shen, Yu-Jie Zhang, Guangfu Liao, Long Chen, Shi-Yong Liu
Summary: The correction addresses the efficiency of EDOT-based conjugated polymers accessed via C-H direct arylation for photocatalytic hydrogen production.
Article
Polymer Science
Ying Sui, Xuwen Zhang, Chenhui Xu, Yibo Shi, Yunfeng Deng, Yang Han, Yanhou Geng
Summary: In this study, three CH monomers, Ph-2FTh, 2FPh-2FTh, and BTz-2FTh, with 3,4-difluorothiophene as terminal units and phenyl, 2,5-difluorophenyl and benzothiadiazole as central units, were synthesized for the direct arylation polycondensation to diketopyrrolopyrrole- and isoindigo-based high-mobility conjugated polymers. The resulting polymers showed n-channel behavior in organic thin-film transistors, with electron mobility up to 0.54 cm2 V-1 s-1. Overall, the study obtained significant findings in the synthesis and characterization of conjugated polymers. Evaluation: 8 points.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Asif Iqbal, Le Lu, Hina Mehmood, Ruimao Hua
Summary: This study reports a Cs2CO3-promoted cross-coupling reaction of arenes with cyano-/nitro-substituted aryl halides in DMSO to afford biaryls in the absence of ligands. The cyano/nitro groups in biaryls are shown to be useful for further transformations. Additionally, the formation of dibenzofurans from reactions between arenes and 1-bromo-2-iodobenzene is reported. A radical mechanism for the formation of biaryls is proposed based on control experiments and theoretical studies.
Article
Polymer Science
Pai Wang, Chenhui Xu, Xuwen Zhang, Yibo Shi, Cheng Wang, Yang Han, Yunfeng Deng, Yanhou Geng
Summary: In this study, a series of thienoisoindigo (TIG)-based conjugated polymers (CPs) with high molecular weights were synthesized by direct arylation polycondensation (DArP). TIG derivatives were used as C-Br monomer and multi-halogenated thiophene derivatives were used as C-H monomers. Density functional theory (DFT) calculations revealed the high selectivity between alpha-C-H bonds in the multi-halogenated thiophene derivatives and beta-C-H bonds in the TIG C-Br monomer. The resulting CPs showed low optical bandgaps and ambipolar transport characteristics in organic thin-film transistors (OTFTs). The polymer TIG-4FTVT exhibited the best device performance with high electron and hole mobility when modified with polyethylenimine ethoxylated (PEIE) and MoO3.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yongquan Tang, Fang Chen, Sai Wang, Qi Sun, Xiangju Meng, Feng-Shou Xiao
Summary: A porous phenanthroline-based polymer, synthesized via free radical polymerization, exhibits excellent catalytic performance in transition-metal-free C-H arylation reactions, potentially opening up new possibilities for the design of novel heterogeneous transition-metal-free catalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Organic
Yo-Sep Yang, Sangmin Lee, Seung Hwan Son, Hyung-Seok Yoo, Yoon Hu Jang, Jeong-Won Shin, Hyuck-Jae Won, Jaehoon Sim, Nam-Jung Kim
Summary: A ligand-controlled direct arylation of indoles via Pd(ii)-catalyzed oxidative boron Heck reaction under aerobic conditions is reported. This methodology provides a regiodivergent route for C2 or C3 aryl indoles in a protection-free and acid/base free manner.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Polymer Science
Liwei Ye, Tanin Hooshmand, Barry C. Thompson
Summary: This study introduces a new method to reduce the generation of organic waste and achieve high molecular weight polymers in the synthesis of conjugated polymers.
Article
Chemistry, Applied
Li-Hong Wang, Li-Lin Liu, Hui Liu, Yan Chen, Dong-Nai Ye, Weifei Fu, Shi-Yong Liu
Summary: In this work, Diketopyrrolopyrrole (DPP) and perylene diimine (PDI) dye moieties are welded together as propellers to design novel molecules with star-shaped or three-dimensional (3D) geometries and minimized self-aggregation. The optical, electrochemical properties and photovoltaic performance of these molecules are systematically investigated, showing that 3D molecules have a broader light absorption, higher extinction coefficients and more favorable energy levels compared to mono DPP-PDI precursor. This study demonstrates the effectiveness of the DACH reaction in preparing branched or 3D pi-electronic materials.
Article
Chemistry, Organic
Jian Zhang, Xinzhe Shi, Henri Doucet
Summary: This study explores a Pd-catalyzed annulative pi-extension reaction of 1-arylpyrroles using 1,2-dihalobenzenes as coupling partners, leading to the selective synthesis of pyrrolo[1,2-f]phenanthridines. The higher reactivity of the pyrrole C2-H bond allows for successful access to substituted pyrrolo[1,2-f]phenanthridines.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Polymer Science
Lisa Takimoto, Taiki Goto, Junhui Chen, Junpei Kuwabara, Takaki Kanbara
Summary: Nonstoichiometric direct arylation polycondensation of 2,2',3,3',5,5',6,6'-octafluorobiphenyl with excess of 2,7-diiodo-9,9-dioctyl-9H-fluorene is demonstrated. The Pd/Ag dual-catalyst system enables direct arylation under mild conditions and promotes the intramolecular transfer of a Pd catalyst walking through the fluorene moiety. The optimized reaction conditions produce the corresponding pi-conjugated polymer with a high molecular weight and terminal octafluorobiphenyl units at both ends.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yuan-Zhe Cheng, Wenyan Ji, Xianxin Wu, Xuesong Ding, Xin-Feng Liu, Bao-Hang Han
Summary: Persistent radical covalent organic frameworks (COFs) have shown great potential in photocatalysis, magnetism, and biology. We successfully synthesized two sp2 carbon-covalent organic frameworks with persistent triphenylamine radical cation, which can be generated by simple light irradiation. These materials can be used for oxidative organic transformations under visible light.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Zihao Li, Wenyan Ji, Tian-Xiong Wang, Xuesong Ding, Bao-Hang Han, Wei Feng
Summary: In this study, a covalent organic framework (COF) interlayer with maximized lithiophilic carbonyl groups has been developed as an ionic regulator in Li metal batteries (LMBs). This regulator can prevent the formation of ramified Li metal and improve cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yuxiang Zhao, Ying Liang, Daoxiong Wu, Hao Tian, Tian Xia, Wenxin Wang, Weiyu Xie, Xin-Ming Hu, Xinlong Tian, Qi Chen
Summary: In this work, an efficient hydrogen evolution reaction (HER) catalyst, Ru@COF-1, was successfully prepared by complexation of triazine-cored sp(2) carbon-conjugated covalent organic frameworks (COFs) with ruthenium ion. The Ru@COF-1 catalyst exhibited lower overpotential and higher stability in acidic electrolytes compared to other COFs-based electrocatalysts. The nitrogen atom protonation of triazines in the acidic media greatly improved the conductivity and electrocatalytic durability of Ru@COF-1. Density functional theory calculations revealed that tetracoordinated Ru-N2Cl2 moieties contributed significantly to the outstanding HER performance of Ru@COF-1. This study provides a new direction for the development of protonated HER electrocatalysts in acidic media.
Article
Chemistry, Multidisciplinary
Ying Liang, Tian Xia, Zhuangzhuang Wu, Yingjie Yang, Yongpeng Li, Zhuyin Sui, Chaokun Li, Ruimei Fan, Xinlong Tian, Qi Chen
Summary: A novel and convenient tactic was developed to design and fabricate tetrazole-functionalized covalent organic framework (COF) materials with abundant nitrogen atoms. The materials showed great promise for application in electrocatalysis with enhanced activity.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xin Liu, Meng Xia, Yuxiang Zhao, Tian Xia, Yongpeng Li, Juanxiu Xiao, Zhuyin Sui, Qi Chen
Summary: The postsynthetic modification of imine covalent organic frameworks offers effective functionalization approaches, showing great potential in the field of lithium-sulfur batteries. The designed COF-PA-AI/S as a sulfur-loaded matrix material exhibits faster electrochemical kinetics and better performance, providing a new direction for the development of next-generation lithium-sulfur batteries.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Peng Rao, Junming Luo, Daoxiong Wu, Jing Li, Qi Chen, Peilin Deng, Yijun Shen, Xinlong Tian
Summary: This study successfully synthesizes nitrogen-doped carbon graphene single-atom catalysts using a movable type printing method. The catalyst shows excellent oxygen reduction reaction performance and durability, making it suitable for metal-air batteries and fuel cells. Additionally, the use of this catalyst as an air-cathode catalyst in a zinc-air battery results in high-peak power density and high specific capacity.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Qian Wang, Runxi Zhu, Peilin Deng, Jing Li, Wei Huang, Qi Chen, Ya-Qiong Su, Chunman Jia, Zhongxin Liu, Zhenye Kang, Yijun Shen, Xinlong Tian
Summary: Direct ethanol fuel cells (DEFCs) are considered as one of the most promising energy resources for portable power devices. However, the current mainstream catalysts used in DEFCs have limitations in the complete oxidation of ethanol. This study proposes ultrathin trimetallic Pt/Ni/Rh nanowires as catalysts, which show high activity, stability, anti-CO poisoning ability, and selective complete ethanol oxidation.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Meng Xia, Dong Cai, Jianbo Feng, Peng Zhao, Jiakai Li, Rongxin Lv, Guiqiu Li, Lulu Yan, Wei Huang, Yongpeng Li, Zhuyin Sui, Meng Li, Hui Wu, Yijun Shen, Juanxiu Xiao, Dong Wang, Qi Chen
Summary: This study presents a composite sorbent@biomimetic fibrous membrane (PPy-COF@Trilayer-LiCl) that mimics nature's Murray networks, demonstrating excellent water uptake performance and fast water release capacity. The hierarchically porous structure of PPy-COF@Trilayer-LiCl enables superior sorption-desorption kinetics and directional rapid water transport. Furthermore, a wearable SAWG device is developed, achieving a high yield of clean water with efficient water sorption-desorption properties.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yi-Jie Kong, Ao-Chuan Zheng, Zhuangzhuang Wu, Qi Chen, Xin-Ming Hu
Summary: This study presents a new type of hollow carbon spheres with isolated Ni atoms on both external and internal surfaces, which show enhanced activity for electrochemical CO2 reduction compared to materials with common structures. Secondary pyrolysis of the material further improves its activity and stability for CO2 reduction. The results provide guidance for the design of high-performance catalysts for electrochemical CO2 reduction.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Environmental
Xiaohong Gao, Jieli Chen, Yanhui Yu, Fangyuan Wang, Xiao Wu, Xingbo Wang, Weihua Mao, Jing Li, Wei Huang, Qi Chen, Ruisong Li, Chenghang You, Shaolei Wang, Xinlong Tian, Zhenye Kang
Summary: In this work, core-shell structured nanoarrays (NiTe@FeOOH) were designed and constructed for efficient overall seawater splitting. The catalyst exhibited superior performance in both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), with low overpotentials and excellent durability. The strong interactions between NiTe and FeOOH, as well as the surface charge effect, contribute to its high activity and stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Meng Xia, Shuyang Hu, Wenqi Luo, Yang Guo, Peng Zhao, Jiakai Li, Guiqiu Li, Lulu Yan, Wei Huang, Meng Li, Juanxiu Xiao, Yijun Shen, Qi Chen, Dong Wang
Summary: A novel hierarchical structured solar-driven steam generation (SSG) evaporator is developed through a simple and low-cost etching treatment on discarded sea urchin shells, resulting in outstanding light absorption performance and high evaporation rate.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Wenxin Wang, Wenjing Wang, Ying Liang, Liwen Du, Huan Yang, Haoxiang Ma, Huiting Cheng, Yaqian Yan, Yijun Shen, Qi Chen
Summary: The intelligentization of materials and structures is an important trend. In this paper, a stimuli-responsive 4D aerogel named P4D is used for the rapid reduction of tetracycline pollution. The novel structure of COFs@P4D, with its programmable temporary state and recovery of permanent state under thermal or water stimulus, shows great potential in pollution treatment and sensors.
Article
Chemistry, Multidisciplinary
Zhuangzhuang Wu, Junming Luo, Ying Liang, Xinxin Yu, Yuzhen Zhao, Yongpeng Li, Wenxin Wang, Zhuyin Sui, Xinlong Tian, Qi Chen
Summary: In this study, a new tetrazole-functionalized covalent organic framework (COF-TZ) was synthesized and applied to electrocatalytic oxygen reduction reaction (ORR) and selective H2O2 production. The COF-TZ showed high H2O2 yield and COF-TZ could effectively coordinate cobalt for use in Li-S batteries. This study provides a logical design of functional COFs and promotes the development of electrocatalytic H2O2 production and Li-S batteries.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Ruisong Li, Daoxiong Wu, Peng Rao, Peilin Deng, Jing Li, Junming Luo, Wei Huang, Qi Chen, Zhenye Kang, Yijun Shen, Xinlong Tian
Summary: Hydrogen, as a carbon-free energy carrier, is crucial for future clean energy. However, efficient production and combustion of hydrogen still requires precious metal-based catalysts. This study has developed a general movable printing method to synthesize various precious metal-based catalysts with high atomic utilization. These catalysts exhibit higher activities than their nanoparticle counterparts, especially for the superior mass activity of Ru-based catalysts.
Article
Engineering, Chemical
Jiakai Li, Rongxin Lv, Guiqiu Li, Wenqi Luo, Jiashui Wang, Meng Xia, Peng Zhao, Yongyao Chen, Senjia Wu, Qi Chen, Yijun Shen, Meng Li, Wei Xiao, Wang Dong, Juanxiu Xiao
Summary: Discarded banana pseudostems have been demonstrated as a promising solar-driven steam generator with excellent pore structure, light absorbance, and superhydrophilic properties. The generator has a high evaporation rate and solar-thermal conversion efficiency, and can operate stably in high salinity solutions. Additionally, it shows excellent water purification and seawater desalination performance in a real ocean situation.
