Article
Biochemistry & Molecular Biology
Tzu-Sheng Huang, Tung-Li Hsieh, Chih-Ching Lai, Hsin-Yi Wen, Wen-Yao Huang, Mei-Ying Chang
Summary: The study successfully synthesized a series of partially fluorinated sulfonated poly(arylene ether) membranes with good mechanical properties and high proton conductivity, which showed excellent performance in fuel cells. The membranes demonstrated significant dimensional and oxidative stability while maintaining outstanding cell performance.
Article
Polymer Science
Rui Sun, Mahesh Agrawal, Kenneth C. Neyerlin, Joshua D. Snyder, Yossef A. Elabd
Summary: This study reports the synthesis of proton-conducting sulfonated poly(ionic liquid) block copolymers (S-PILBCPs) and showcases their potential as ionomers for proton exchange membrane fuel cells (PEMFCs).
Article
Polymer Science
Zetian Zhang, Hao Liu, Tiandu Dong, Yingjiao Deng, Yunxi Li, Chuanrui Lu, Wendi Jia, Zihan Meng, Mingzheng Zhou, Haolin Tang
Summary: Blend proton exchange membranes (BPEMs) were prepared by blending sulfonated poly(aryl ether nitrile) (SPAEN) with phosphorylated poly(vinylbenzyl chloride) (PPVBC). The chemical complexation interaction between the phosphoric acid and sulfonic acid groups in the PPVBC-SPAEN system resulted in BPEMs with reduced water uptake and enhanced mechanical properties. The proton conductivity of the BPEMs in the through-plane direction was significantly enhanced due to the introduction of phosphoric acid groups.
Article
Polymer Science
Riddhi Kamble, Arijit Ghorai, Bholanath Ghanti, Debabrata Pradhan, Susanta Banerjee
Summary: A series of polymer-metal-organic frameworks (MOF) hybrid composite membranes were prepared and their properties were analyzed and compared. The results showed that incorporating MOF into the polymer matrix can significantly improve proton conductivity, water uptake, and swelling without affecting oxidative stability.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Physical
Zhuoyu Yin, Haobo Geng, Pengfei Yang, Benbing Shi, Chunyang Fan, Quan Peng, Hong Wu, Zhongyi Jiang
Summary: A sulfonated covalent organic framework nanosheets (TpPa-SO3H) were synthesized and incorporated into SPEEK matrix to prepare proton exchange membranes with increased ion exchange capacity and reduced swelling ratio. The SPEEK/TpPa-SO3H-5 membrane exhibited significantly improved proton conductivity and mechanical strength, leading to favorable performance in a single H-2/O-2 fuel cell.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Polymer Science
Dong Pan, Si Chen, Patric Jannasch
Summary: Poly(xanthene)s (PXs) with trimethylammonium, methylpiperidinium, and quinuclidinium cations were synthesized and studied as anion exchange membranes (AEMs). These AEMs exhibited high ionic conductivity, thermal stability, and alkali-resistance, making them suitable for alkaline fuel cells and electrolyzers. The polymer architecture with a rigid PX backbone decorated with cations via flexible alkyl spacer chains contributed to these excellent properties.
Article
Engineering, Chemical
Boxin Xue, Ming-Zhi Zhu, Shu-Qing Fu, Pan-Pan Huang, Huidong Qian, Pei-Nian Liu
Summary: Herein, we report a facile synthesis method for three sulfonated poly (phenyl-alkane)s with excellent chemical stability. The polymers were synthesized by acid-catalyzed Friedel-Crafts polycondensation followed by nucleophilic substitution. One of the polymers showed improved ionic channel connectivity, resulting in high conductivity and successful application in proton exchange membrane fuel cells.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Yafang Zhang, Yan Wang, Qingwen Gao, Hui Li, Wenpeng Li, Jiajia Huang, Jingtao Wang, Wenjia Wu
Summary: This article proposes a method for preparing hydrophilic and water-stable MOF nanosheets through ultrashort carbon nanotube-assisted self-inhibition crystal growth strategy, and successfully prepares a lamellar membrane with a thickness of -8.9 μm. The membrane has high structural stability, water adsorption and retention ability, and high proton conductivity.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Si Shen, Tingting Jia, Jing Jia, Ning Wang, Di Song, Jing Zhao, Jin Jin, Quantong Che
Summary: The proton exchange membranes (PEMs) constructed through alternate depositing chitosan and graphene oxide show improved proton conductivity and mechanical properties in high temperature proton exchange membrane fuel cells (HTPEMFCs). Doped phosphoric acid molecules enhance membrane's mechanical strength, while layer-by-layer deposited composite membranes exhibit excellent proton conductivity and stability. The strategy of alternate depositing functional components on membrane substrates proves to be more effective at enhancing the quality of PEMs.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Umesh Somaji Waware, Mohd Rashid, A. M. S. Hamouda, Rohana Adnan, G. J. Summers
Summary: The uniform dielectric permittivity and frequency-dependent ac conductivity of hollow and porous semiconducting copolymer poly(aniline-co-m-hydroxyaniline) (PA-co-m-HA)s were studied using various techniques including electrochemical impedance spectroscopy, electronic spectroscopy, X-ray diffraction, and cyclic voltammetry. The copolymer exhibited globular and porous morphology, reduced crystallinity, and blue-shift in optical spectra.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Polymer Science
Zviad Katcharava, Torben Saatkamp, Andreas Muenchinger, Nodar Dumbadze, Klaus-Dieter Kreuer, Michael Schuster, Giorgi Titvinidze
Summary: The synthesis of sulfonated poly(phenylene sulfone) with high ion-exchange capacity (sPPS-360) has been successfully optimized, and the effect of increased molecular weight on mechanical properties has been studied. Improved properties of sPPS-360 in water have been observed.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Engineering, Chemical
Na Rae Kang, Thanh Huong Pham, Hannes Nederstedt, Patric Jannasch
Summary: Phosphonated aromatic polymers functionalized with highly acidic perfluorophenylphosphonic acid show high conductivity, efficient ionic clustering, excellent proton conductivity, and outstanding thermal stability, making them attractive for applications in catalyst layers and proton exchange membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Energy & Fuels
Lei Zhang, Yunhu Jiang, Haixia Wang, Penghua Qian, Jiaxuan Sheng, Haifeng Shi
Summary: Sulfonated poly(ether ketone)-based hybrid membranes with sulfonated titanium dioxide (S-TiO2) as performance modifiers were fabricated via solution-casting, showing superior ion selectivity and vanadium ion resistance. The cell assembled with SPEEK/S-TiO2-3 membrane demonstrated higher coulombic efficiency and energy efficiency compared to Nafion 117, with good structural stability and durability after 200 charge-discharge cycles due to intramolecular interaction.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Lili Liu, Yao Lu, Cong Ning, Na Li, Shouwen Chen, Zhaoxia Hu
Summary: Structure design plays a crucial role in preparing proton exchange membranes (PEMs) with excellent performance. In this study, a series of comb-shaped sulfonated fluorinated poly(aryl ether sulfone) (SPFAES) membranes were synthesized and demonstrated improved proton conductivity and physicochemical stability compared to linear SPFAE membranes. These findings offer a promising example for the synthesis of high-performance PEMs with flexible comb-shaped side chains.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Siva Moorthy, Berlina Maria Mahimai, Dinakaran Kannaiyan, Paradesi Deivanayagam
Summary: Porous metal-organic frameworks (MOFs) have attracted attention due to their crystallinity, porosity, and structural designability. In this study, composite membranes based on poly (2,5-benzimidazole) (ABPBI) were developed by incorporating copper-trimesic acid (Cu-TMA) MOFs into the polymer matrix. The membranes' properties, including proton conductivity, were evaluated, and the 3 wt% Cu-TMA loaded membrane exhibited the highest proton conductivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Polymer Science
Pengfei Jie, Jiarui Du, Wei Tan, Jiyu Tang, Feng Zhang, Fengyu Qu
Summary: The study investigates the impact of cross-linking degree on proton-conducting properties by preparing different Schiff-based networks with varying cross-linking degrees and incorporating acid carriers into composites for new proton-conducting hybrid membranes. Results show that the cross-linking degree significantly affects proton conductivity, with H2SO4-incorporated SNW-M displaying the highest proton conductivity among the samples.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Xiuli Li, Feng Zhang, Bin Zhai, Xiuying Wang, Jun Zhao, Zhongyi Wang
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2020)
Article
Chemistry, Analytical
Cuiyuan Liang, Huiming Lin, Wei Guo, Xing Lu, Dexin Yu, Songjie Fan, Feng Zhang, Fengyu Qu
Summary: A novel ZIF/g-C3N4/RGO nanohybrid was created for the first time as an electrochemical sensor, exhibiting excellent electrocatalytic activity towards hydrazine with a low detection limit and high sensitivity. The detection concentration of hydrazine in actual samples was lower than the WHO limit and showed high reproducibility. The high sensing capability of ZIF/g-C3N4/RGO combines abundant surface-active sites, high conductivity, and 2D interfaces between the nanosheets, providing a promising avenue for improving sensing performance.
Article
Chemistry, Analytical
Ning Li, Feng Zhang, Wenying Sun, Lili Zhang, Xingguang Su
Summary: In this study, a sensitive fluorescence biosensor based on fluorescence resonance energy transfer (FRET) between MoS2 quantum dots (MQDs) and CoOOH nanoflakes was developed for the assay of ascorbic acid oxidase (AAO). Under optimal experimental conditions, the developed fluorescence method exhibited good linear ranges and low detection limits for AAO detection. The proposed biosensor showed high sensitivity and selectivity, and was successfully applied for AAO determination in human serum samples.
Article
Chemistry, Multidisciplinary
Haixia Liu, Chunyu Yang, Wei Guo, Feng Zhang, Huiming Lin, Le Zhao, Tianyue Ma, Xinxin Lu, Fengyu Qu
Article
Chemistry, Multidisciplinary
Xuan Bai, Feng Zhang, Yibo Wang, Bin Zhai, Yu Song, Xiuying Wang, Jun Zhao
Summary: Ni-based salts play an important role in the preparation of porous carbon materials, influencing their morphology, porous structure, and degree of graphitization; Anions also play a significant role in the formation of carbon materials; The electrochemical performance of porous carbons is affected by factors such as the ratio of mesopores to micropores and electron conductivity.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Analytical
Xing Lu, Songnan Li, Wei Guo, Feng Zhang, Fengyu Qu
Summary: The TiO2/TiCT-NUF heterojunctions exhibit high sensing activity for simultaneous detection of dopamine and uric acid, with good selectivity and reproducibility in urine and serum samples. The proposed heterojunctions show promising potential as an electrochemical sensor for the sole and simultaneous detection of DA and UA.
Article
Chemistry, Physical
Le Zhao, Qingzhu Yang, Wei Guo, Feng Zhang, Kai Yu, Chunyu Yang, Fengyu Qu
Summary: The newly developed Co2.19S4 nanodots utilize starvation therapy to enhance tumor photothermal therapy and chemodynamic therapy in a hypoxic microenvironment by capturing copper ions under near-infrared irradiation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Yuzhu Wang, Le Zhao, Feng Zhang, Kai Yu, Chunyu Yang, Jingjing Jia, Wei Guo, Jingxiang Zhao, Fengyu Qu
Summary: A highly efficient solar-driven water evaporation system was developed using Co-Sn alloy-deposited Teflon film and super-absorbent polymers, achieving high light-to-heat conversion efficiency and improved efficiency through optimized water pump design.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Cuiyuan Liang, Xin Wang, Dexin Yu, Wei Guo, Feng Zhang, Fengyu Qu
Summary: Research on hydrazine detection using the POMOF/CFG structure showed a broad linear range and low detection limit, with good anti-interference capability, stability, and feasibility. Acceptable relative recoveries were obtained in the detection of practical samples.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jinghua Di, Ying Lu, Wenwen Wang, Xiuying Wang, Chunling Yu, Jun Zhao, Feng Zhang, Shiping Gao
Summary: In this study, a g-C3N4 thin film with high photocatalytic performance, good recyclability, and cycle stability was successfully prepared. The presence of cyano groups improved the photocatalytic efficiency, leading to efficient degradation of dyes under visible light irradiation.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Energy & Fuels
Yibo Wang, Xuan Bai, Wenwen Wang, Ying Lu, Feng Zhang, Bin Zhai, Xiuying Wang, Yu Song
Summary: Porous carbons are promising electrode materials for electrical double layer capacitors due to their high surface area and conductivity. A ball milling-assisted method can be used to prepare porous carbons with controlled morphology and graphitization degree, with the amount of FeCl3 center dot 6H(2)O influencing the properties of the porous carbons.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Pengfei Jie, Xin Wang, Feng Zhang, Chen Wen, Lei Feng, Fengyu Qu, Xiaoqiang Liang
Summary: A series of proton-conductive COF membranes were fabricated in this study, showing high proton conductivity at medium and subzero temperatures. The enhancement of proton conductivity was achieved through multifaceted synergistic effects.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Mengjun Wang, Mengke Wang, Feng Zhang, Xingguang Su
Article
Chemistry, Multidisciplinary
Xiuli Li, Feng Zhang, Ban Fei, Yu Song, Bin Zhai, Xiuying Wang
