Article
Chemistry, Physical
Antonio Turco, Stefania Corvaglia, Pier Paolo Pompa, Cosimino Malitesta
Summary: A sensor for the determination of sulfamethoxazole (SMX) was successfully fabricated using a nanocomposite molecularly imprinted polymer (nanoMIP), showing a lower limit of detection and a wider linear range. The sensor exhibited good affinity and highly reproducible response, and could be effectively applied in milk samples.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Yangyuchuang Wang, Wenzi Yao, Huabo Huang, Juan Huang, Liang Li, Xianghua Yu
Summary: The study demonstrates that heteroatom-doped carbon nanotubes derived from polypyrrole can serve as an excellent electrochemical sensor for dopamine detection, showing outstanding detection ability, anti-interference capability, and stability.
SOLID STATE SCIENCES
(2022)
Article
Multidisciplinary Sciences
Zhou Li, Xiaopeng Wang, Lingyu Zhao, Fengyao Chi, Chang Gao, Ying Wang, Mengdan Yan, Qian Zhou, Miaomiao Zhao, Xinyang Wang, Jiaqi Wang, Man Yuan, Mingmao Wu, Lixia Wang, Yang Zhao, Liangti Qu
Summary: In this study, a new aqueous hybrid electrochemical capacitor with high energy density and wide operating voltage range was developed. The capacitor can be easily integrated at scale, demonstrating excellent flexibility and stable filtering performance.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Emilia Gradzka, Piotr Dluzewski, Izabela Wigda, Monika Wysocka-Zolopa, Krzysztof Winkler
Summary: The electrochemical behavior of the ternary composite is influenced by the relative amounts of polypyrrole, multiwalled carbon nanotubes, and tetra(n-octyl)ammonium bromide, resulting in enhanced capacitance and stability.
Article
Chemistry, Analytical
Lili Yang, Jiasheng Wang, Haitao Lu, Ni Hui
Summary: A dual-sensing platform based on PPY/MWCNTs/PB nanowire arrays has been developed, showing excellent electrocatalysis performance for H2O2 reduction and high sensitivity for microRNA biosensing applications.
Article
Electrochemistry
Gibson P. Scisco, Mark E. Orazem, Kirk J. Ziegler, Kevin S. Jones
Summary: Ordered carbon nanotube arrays were used as electrodes for supercapacitors with neat ionic liquid electrolyte, and uncatalyzed chemical vapor deposition may lead to blocked CNTs and reduced active area. The increased resistivity of the electrolyte within the pores may be due to hydrophilic surface functionalities on the surface of the CNTs.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Carlos Bellaner Diaz-Arriaga, Daniella Esperanza Pacheco-Catalan, Jorge Uribe-Calderon
Summary: In this study, Polypyrrole/Palygorskite (PPy/Pal) nanocomposites were prepared using acid treatments on Pal templates, resulting in enhanced electrochemical properties compared to PPy alone. The acid-treated Pals showed potential as natural and low-cost templates for producing one-dimensional PPy/Pal nanocomposites for use as electrodes in electrochemical capacitors.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Electrochemistry
Xuena Wu, Zhan Li, Yan Tian, Yanmin Lu, Haihui Jiang, Libin Liu, Ligang Gai
Summary: This study investigates the application of polypyrrole nanotubes (PNTs) in electrochemical energy-storage systems (EES). The researchers developed a composite of polydopamine (PDA)-modified PNTs and found that it exhibited enhanced electrochemical performance, with higher capacitance retention and specific capacitance compared to pristine PNTs.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Jingping Wang, Jinan Cao, Youlong Xu, Haixia An, Xifei Li
Summary: This study presents a simple electro-polymerization method to fabricate flexible PPy films coated on PPy nanotubes, which can be used as flexible electrodes for supercapacitors. The optimized kinetics for ion transportation result in a significantly increased mass specific capacitance of the flexible porous PPy films. The flexible porous PPy films also exhibit minimal capacitance fading after 10,000 cycles due to the large free space for volume change.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Engineering, Environmental
Yang Li, Cai-Yan Gao, Xin-Heng Fan, Lian-Ming Yang
Summary: This study developed a high-performance polypyrrole (PPy)/single-walled carbon nanotube (SWCNT) composite material through in-situ electrochemical polymerization of pyrrole on a pre-fabricated SWCNT membrane electrode. By adopting pulse galvanostatic electropolymerization (PGEP) technology for interface engineering, the TE performance of the composite film was significantly improved, achieving excellent power factor and figure of merit.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Stefanny F. Amaro, Cristiane C. Maciel, Jessica S. Rodrigues, Amanda de S. M. de Freitas, Lucas V. B. V. Fre, Anerise de Barros, Marystela Ferreira
Summary: This research aims to study flexible sensors based on a biodegradable polymer PBAT and graphite. The sensors were modified using the layer-by-layer technique to improve their electrochemical behavior for detecting paraquat. Nanostructured films were created by alternating layers of anionic and cationic materials, carbon nanotubes, and polypyrrole. The sensors showed good stability, reproducibility, and repeatability for paraquat detection.
Article
Materials Science, Paper & Wood
Yang Zhan, Yang Hu, Yu Chen, Quanling Yang, Zhuqun Shi, Chuanxi Xiong
Summary: Nanocellulose has become one of the most attractive matrix materials for flexible supercapacitors, and electrode materials with high capacitance and mechanical flexibility were developed through the in-situ synthesis of polypyrrole. The resulting nanocellulose/carbon nanotube/polypyrrole hydrogels showed promising performance in the field of flexible solid-state supercapacitors.
Article
Electrochemistry
Du Tian, Huan Cheng, Qi Li, Chao Song, Dian Wu, Xinyu Zhao, Shiqi Hu, Shaoyun Chen, Chenglong Hu
Summary: In this study, PPy@PANI composite materials with excellent electrochemical performance were prepared by a simple chemical synthesis method. The composite showed superior specific capacitance and better cycling stability compared to many reported PPy/PANI composites. The synergistic effect of PPy and PANI was demonstrated in the enhanced performance of the PPy@PANI composite materials.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Konstantin A. Milakin, Sonal Gupta, Ognen Pop-Georgievski, Zuzana Moravkova, Udit Acharya, Oumayma Taboubi, Stefan Breitenbach, Nemanja Gavrilov, Christoph Unterweger, Patrycja Bober
Summary: Polypyrrole-gelatin aerogels were successfully synthesized using a cryopolymerization approach and carbonization treatment. The carbonized materials exhibited preserved mechanical integrity, macroporous morphology, and enhanced structural order at higher temperatures. The nitrogen-containing carbon materials showed high conductivity and specific surface area, and the gravimetric capacitance of the products increased with higher carbonization temperatures.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Quanfeng He, Lanping Zeng, Lianhuan Han, Matthew M. Sartin, Juan Peng, Jian-Feng Li, Alexander Oleinick, Irina Svir, Christian Amatore, Zhong-Qun Tian, Dongping Zhan
Summary: Studies have shown that the adsorption of atomic hydrogen on single layer graphene can effectively store hydrogen and is suitable for solutions involving hydrogen fuel cells for vehicles. Utilizing a Pt-electrocatalyzed spillover-surface diffusion-chemisorption mechanism, hydrogenation of graphene can be carried out under mild conditions, demonstrating high storage capacity and stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Materials Science, Multidisciplinary
Jiangmin Jiang, Zhiwei Li, Zhenghui Pan, Shijing Wang, Yaxin Chen, Quanchao Zhuang, Zhicheng Ju, Xiaogang Zhang
Summary: The article provides an overview of the issues associated with zinc metal anodes in rechargeable zinc-ion batteries and discusses various strategies to overcome these issues, such as crystal engineering and structural engineering. Lastly, it discusses the challenges and research directions in this field.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Jiaxiang Chi, Hai Xu, Jiuqing Wang, Xueqing Tang, Shuang Yang, Bing Ding, Hui Dou, Xiaogang Zhang
Summary: In this study, a spherical carbon-confined nanovanadium oxynitride (VNxOy/C) was synthesized and its electrochemical performance as a cathode material for aqueous zinc-ion batteries (ZIBs) was investigated. It was found that the oxidized VN xOy/C exhibited significantly improved reversible capacity and rate performance, which was attributed to the activation of VN xOy/C during the first charging process. The study also revealed that charging voltage and the presence of water in the electrolyte played crucial roles in activating VN xOy/C and enhancing its Zn2+ storage capability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Ruanye Zhang, Hai Xu, Derong Luo, Jiaxiang Chi, Zengjie Fan, Hui Dou, Xiaogang Zhang
Summary: A high-performance organic cathode material, DTT@r-GO, is obtained by tightly wrapping a carbonyl compound, DTT, with reduced graphene oxide, r-GO, through noncovalent interactions. The composite electrode exhibits superior rate performance and considerable calendar life, enabling stable power supply for electronic devices at extreme temperatures. This finding broadens the understanding of noncovalent interactions and inspires the development of organic electrochemical materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zhiwei Li, Yinghong Xu, Jiaxin Cui, Hui Dou, Xiaogang Zhang
Summary: The high value-added utilization of low-grade heat is essential for energy regulation. In this study, a nitrogen-doped hierarchical porous carbon was used to construct high-performance zinc ion thermal charging supercapacitors, enabling the integration of energy conversion and storage. The NHPC material achieved high energy and power density, as well as attractive voltage and thermopower, demonstrating the potential of heat-to-current conversion and storage.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Chen Lv, Wenjie He, Jiangmin Jiang, Enmeng Zhen, Hui Dou, Xiaogang Zhang
Summary: Solvent-free Li4Ti5O12 (LTO) electrodes were prepared using electrostatic spraying deposition, which exhibited higher porosity and electrochemically active surface area compared to wet-coated electrodes. The optimized microstructure improved electrolyte infiltration and Li-ion transport paths, reducing electrochemical polarization and boosting specific capacity. Introduction of 2D graphene nanoplates as conductive agent decreased powder resistivity and effectively suppressed side effects during spraying process. Assembled LICs using dry-sprayed LTO electrodes showed superior energy density and excellent cycling performance, indicating great potential for practical applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Chengyang Xu, Aimin Ge, Koki Kannari, Baoxu Peng, Min Xue, Bing Ding, Ken-ichi Inoue, Xiaogang Zhang, Shen Ye
Summary: In this study, highly sensitive surface-enhanced Raman spectroscopy (SERS) was used to reveal the spontaneous desorption behavior of insoluble products of lithium peroxide (Li2O2) from the electrode surface. The electrochemical oxygen reduction reaction (ORR) mechanism at the electrode/Li2O2 interface was elucidated based on a dynamic equilibrium between the generation and desorption of Li2O2. The desorption of adsorbed Li2O2 species (Li2O2*) is crucial in maintaining the stability and discharge plateau of the galvanostatic ORR process.
ACS ENERGY LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Jiang Long, Wenjie He, Haojie Liao, Wenjun Ye, Hui Dou, Xiaogang Zhang
Summary: Polymer binders are crucial for improving the electrochemical performance of silicon-based anodes in lithium-ion batteries. By designing a three-dimensional network structure, which has multiple binding points, the researchers successfully mitigated the volume expansion of the silicon particles during charge and discharge cycles. The synthesized 3D binder showed high electrochemical stability and offered a simple fabrication procedure for the electrode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Kangsheng Huang, Sheng Bi, Hai Xu, Langyuan Wu, Chang Fang, Xiaogang Zhang
Summary: Gel polymer electrolytes (GPEs) are used as alternatives to liquid electrolytes in lithium-metal batteries (LMBs). Adding diluent 1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether (TTE) to regulate the electrolyte structure improves the electrochemical stability and ion transport properties of GPEs. The addition of TTE enhances ion association and forms a robust and low-impedance solid electrolyte interface (SEI) on the anode surface. This study provides an effective approach for controlling solvation structures in GPEs, which can advance the design of GPE-based LMBs in the future.
Article
Nanoscience & Nanotechnology
Jing Zhang, Derong Luo, Hong Xiao, Huizi Zhao, Bing Ding, Hui Dou, Xiaogang Zhang
Summary: A novel functionalized anionic COF-SS-Li was designed by post-synthetic method, which anchored -SO3(-) groups to the COF backbone and converted the imine linkage to a more stable quinoline unit. COF-SS-Li exhibited good lithium-ion transport and high conductivity as a solid-state electrolyte for lithium-ion batteries. The research enriched the field of solid-state electrolytes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Ruanye Zhang, DeRong Luo, Hai Xu, Jiuqing Wang, Hui Dou, Xiaogang Zhang
Summary: In this study, a new organic anode material with rich redox active centers, well-ordered pore channels, and extraordinary structural stability was reported. The organic anode demonstrated significant specific capacity, high-rate performance, and long cycling stability in aqueous Zn ion batteries. The rocking-chair battery assembled with the organic anode and MnO2 cathode exhibited a superior energy density compared to other reported aqueous Zn ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Electrochemistry
Ziyu Chen, Qianqian Shen, Jianzhen Xiong, Jiangmin Jiang, Zhicheng Ju, Xiaogang Zhang
Summary: Potassium-ion hybrid capacitors (PIHCs) overcome the limitations of potassium-ion batteries (PIBs) and supercapacitors (SCs) by integrating the advantages of both. This review briefly introduces the energy storage mechanism of PIHCs and discusses recent research progress and achievements in anode and cathode materials development. The challenges and prospects of PIHCs are also proposed, along with guiding future research directions.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Multidisciplinary
Derong Luo, Jing Zhang, Huizi Zhao, Hai Xu, Xiaoyu Dong, Langyuan Wu, Bing Ding, Hui Dou, Xiaogang Zhang
Summary: A two-dimensional covalent organic framework (NTCDI-COF) with rich redox active sites, high stability, and crystallinity was designed and prepared. As a cathode material for lithium-ion batteries (LIBs), NTCDI-COF exhibits excellent electrochemical performance with an outstanding discharge capacity of 210 mA h g(-1) at 0.1 A g(-1) and high capacity retention of 125 mA h g(-1) after 1500 cycles at 2 A g(-1). A two-step Li+ insertion/extraction mechanism is proposed based on ex situ characterization and density functional theory calculation. The constructed NTCDI-COF//graphite full cells can realize good electrochemical performance.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Chenhui Wang, Shaopeng Li, Weiyi Chen, Yining Zhao, Shu Xu, Hui Dou, Xiaogang Zhang
Summary: Applying LiTaO3 coating on the surface of LiCoO2 electrode through magnetron sputtering can effectively improve the cycling stability and high-temperature stability of the electrode, as well as promote the transmission of lithium ions.
Article
Chemistry, Multidisciplinary
Shaopeng Li, Kangsheng Huang, Langyuan Wu, Dewei Xiao, Jiang Long, Chenhui Wang, Hui Dou, Pu Chen, Xiaogang Zhang
Summary: This study designs a bi-functional electrolyte by introducing LiNO3 to stabilize the interfaces of Li metal anodes and LiCoO2 cathodes. The designed electrolyte enables Li||LCO batteries to have high capacity retention and high voltage characteristics.
Article
Chemistry, Physical
Xueqing Tang, Dewei Xiao, Zhenming Xu, Qingsheng Liu, Bing Ding, Hui Dou, Xiaogang Zhang
Summary: Tailoring electrolyte components is an effective solution for low-temperature supercapacitors. This study proposes a novel electrolyte with high low-temperature ion conductivity by dissolving a low-melting-point ionic liquid into a binary organic solvent. The hybrid electrolyte exhibits low freezing point and viscosity, and symmetric supercapacitors constructed with it show enhanced electrochemical performance and excellent cycling stability at -70°C.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Katerina Skopalova, Itana Nusa Bubanja, Dragomir Stanisavljev, Nikola Cvjeticanin, Vera Kasparkova, Eliska Dad'ova, Erika Pavlikova, Marek Koutny, Marija Gizdavic-Nikolaidis, Petr Humpolicek
Summary: This study compares the biological properties of PANI prepared by different synthesis methods and oxidizing agents, which improves its potential applications in the biomedical field.
Article
Materials Science, Multidisciplinary
Hui-Ping Li, Cai-Yan Gao, Zhi-Ping Chen, Xin-Heng Fan, Lian-Ming Yang
Summary: In this study, a novel type of D-A non-fused-ring copolymers was designed and synthesized to overcome the trade-off relationship between electrical conductivity and Seebeck coefficient in organic semiconductors. The incorporation of fluorine atoms into the polymer backbone effectively increased the ordered degree of molecular stacking and improved both the electrical conductivity and Seebeck coefficient. The bimodal orientation of polymers played a crucial role in decoupling the correlation between electrical conductivity and Seebeck coefficient.
Article
Materials Science, Multidisciplinary
Mansour A. S. Salem, Amjad Mumtaz Khan, Hatem A. M. Saleh, Khalil M. A. Qasem, Mizna Ahmed, Aadil Shafi Bhat, Abdulaziz Abdullah Qasem Ali, Younes S. A. Ghanem, Ali Alrabie, Abdel-Basit Al-Odayni, Waseem Sharaf Saeed, Basheer Al-Anesi
Summary: This research focuses on the versatile substance, polyaniline/layered double hydroxide (PANI@Nd-Co/LDH), under solvothermal conditions. A thorough analysis of its structure and morphology was conducted using various analytical methods. The findings showed that PANI@Nd-Co/LDH exhibited highly sensitive and specific fluorescence detection of Pb(II) and Al(III), outperforming other heavy metal ions. The sensor demonstrated a turn-off fluorescence response for Pb(II) ions and a turn-on fluorescence response for Al(III) ions. The minimum detectable limits (MDL) were determined to be 9.6 nM for Pb(II) and 220 nM for Al(III). PANI@Nd-Co/LDH could be easily regenerated and reused for multiple cycles. The detection mechanisms involved the inner filter effect (IFE) for Pb(II) and the chelation-enhanced fluorescence (CHEF) effect for Al(III). These results highlight the excellent potential of PANI@Nd-Co/LDH in the detection and recognition of Pb(II) and Al(III) ions.
