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Improving discharge voltage and ion storage dynamic in polyaniline via modulation of carrier charge density for magnesiummetal batteries

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Nano Research 2024年第7期17卷 6168-6175页

作者： Ping Luo Feiyang Chao Chunli Zuo Wenwei Zhang Fangyu Xiong Zhen Huang Dongyao Zhu Gongtao Yu Wenhui Zhong Xingbao Chen Han Tang Xiujuan Wei Qinyou An Hubei Provincial Key Laboratory of Green Materials for Light Industry School of Materials and Chemical EngineeringHubei University of TechnologyWuhan 430068China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Institute for Sustainable Transformation School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China

Rechargeable magnesium-metal batteries(RMBs)have gained much attention due to their abundant resources as well as high ***,the high charge density of Mg^(2+)is one of the main reasons for the slow kinetics performance of RMBs,and modulation of the charge density is an important strategy to improve the kinetics and electrochemical performance of ***,we report on the conductive polymer polyaniline(PANI)for RMBs,which is found to have excellent kinetics and high discharge voltage when storing MgCl^(+).In the storage of MgCl^(+),PANI exhibits a high average discharge voltage platform is 2.3 V ***^(2+)/Mg,which is higher than that in storage of Mg^(2+).We demonstrated the reversible intercalation/de-intercalation of MgCl^(+)in PANI accompanying with the reversible transformation between the quinone ring(C–C,–N=)and the benzene ring(C=C,–NH–)during charging and *** functional theory calculation reveals that PANI exhibit higher voltages(2.25 V vs.1.82 V)along with lower diffusion energy barriers(1.27 eV vs.1.55 eV)for MgCl^(+)storage compared to Mg^(2+)*** work refines the storage mechanism of PANI in RMBs and provides new guidelines for the application of PANI in RMBs.

关键词： rechargeable magnesium-metal batteries cathode materials polyaniline MgCl+storage

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Surface Morphology and Thermo-Electrical Energy Analysis of polyaniline (PANI) Incorporated Cotton Fabric

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Energy Engineering 2024年第1期121卷 1-12页

作者： Md.Shohan Parvez Md.Mustafizur Rahman Mahendran Samykano Mohammad Yeakub Ali Automotive Engineering Research Group Faculty of Mechanical and Automotive Engineering TechnologyUniversiti Malaysia Pahang Al-Sultan AbdullahPekanMalaysia Department of Textile Engineering Khulna University of Engineering&Technology(KUET)KhulnaBangladesh Centre for Research in Advanced Fluid and Processes(CARIFF) Universiti Malaysia Pahang Al-Sultan AbdullahLebuhraya Tun RazakGambangMalaysia Mechanical Engineering Programme Area Faculty of EngineeringUniversiti Teknologi BruneiBruneiDarussalam

With the exponential development in wearable electronics,a significant paradigm shift is observed from rigid electronics to flexible wearable ***(PANI)is considered as a dominant material in this sector,as it is endowed with the optical properties of both metal and ***,its widespread application got delineated because of its irregular rigid form,level of conductivity,and precise choice of *** PANI in textile materials can generate promising functionality for wearable *** research work employed a straightforward in-situ chemical oxidative polymerization to synthesize PANI on Cotton fabric surfaces with varying dopant(HCl)***-treatment using NaOH is implemented to improve the conductivity of the fabric surface by increasing the monomer *** research explores the morphological and structural analysis employing SEM,FTIR and *** surface resistivity was measured using a digital multimeter,and thermal stability is measured using *** successful polymerization,a homogenous coating layer is *** is revealed that the simple pre-treatment technique significantly reduces the surface resistivity of Cotton fabric to 1.27 kΩ/cm with increasing acid concentration and thermal *** electro-thermal energy can also reach up to 38.2°C within 50 s with a deployed voltage of 15 *** modified fabric is anticipated to be used in thermal regulation,supercapacitor,sensor,UV shielding,antimicrobial and other prospective functional applications.

关键词： polyaniline cotton in-situ polymerization SEM TGA heating fabric

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polyaniline-supported nano metal-catalyzed coupling reactions:Opportunities and challenges

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中国化学快报：英文版 2023年第2期34卷 33-40页

作者： Zhigang Zeng Ying Chen Xiaoming Zhu Lei Yu Hubei Key Laboratory of Radiation Chemistry and Functional Materials Hubei University of Science and TechnologyXianning 437100China School of Nuclear Technology and Chemistry&Biology Hubei University of Science and TechnologyXianning 437100China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

polyanilines(PANIs) can be easily prepared from the available and cheap anilines via the oxidative polymerization reactions. Owing to the coordination of nitrogen in the material with metals, PANIs are widely used as the support of nano metal catalysts. In comparison with inorganic supports, the nano metals on PANIs were firmly anchored via the coordination bond so that they are not easily to lose during the reaction process. Moreover, since PANIs are versatile materials and their chemical features can be adjusted by introducing functional groups onto the monomers, the catalytic activities of the prepared catalysts are tunable. During the past decade, PANIs-supported nano metal catalysts have been widely applied in a variety of coupling reactions. This review aims to summarize the recent advances and give a perspective.

关键词： polyaniline Nanoparticles Catalysis Coupling reaction Oxidation

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Lead removal from aqueous medium using fruit peels and polyaniline composites in aqueous and non-aqueous solvents in the presence of polyethylene glycol

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Chinese Journal of Chemical Engineering 2022年第4期35卷 253-259页

作者： Iman Farirzadeh Majid Riahi Samani Davood Toghraie Department of Civil Engineering Khomeinishahr BranchIslamic Azad UniversityKhomeinishahrIran Department of Mechanical Engineering Khomeinishahr BranchIslamic Azad UniversityKhomeinishahrIran

In the present study,composites of polyaniline and some fruit peels were synthesized in various conditions and used for lead removal from aqueous *** tests were conducted in batch mode using the most efficient adsorbent,and the effects of medium pH,initial lead concentration,contact time,adsorbent dosage,and adsorption isotherms were *** results showed that all composites were more efficient in lead removal compared to the fruit peels *** highest removal percentage was related to the composite of banana peel and polyaniline that synthesized in the aqueous solution in the presence of 2 g·L^(-1) Poly ethylene *** composite showed 95.96%lead adsorption at pH=6,the contact time of 90 min,the initial lead concentration of 25 mg·L^(-1),and an adsorbent concentration of 8 g·L^(-1).Adsorption isotherm study showed that adsorption of lead by synthesized composite could be fitted by both Langmuir and Freundlich models,but the Langmuir model was more fitted than ***,some characteristics of the composites,such as chemical composition(XRD analysis),structure,and morphology(SEM analysis)and functional groups(FTIR analysis),were studied.

关键词： Adsorption Banana peel Composites Pollution polyaniline

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Constructing a lithiophilic polyaniline coating via in situ polymerization for dendrite-free lithium metal anode

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Nano Research 2023年第6期16卷 8448-8456页

作者： Xiaosong Xiong Qiao Qiao Qi Zhou Xinbing Cheng Lili Liu Lijun Fu Yuhui Chen Bin Wang Xiongwei Wu Yuping Wu School of Energy and Environment Southeast UniversityNanjing 210096China School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China School of Energy Science and Engineering State Key Laboratory of Materials-Oriented Chemical EngineeringNanjing Tech UniversityNanjing 211816China National Energy Novel Materials Center Institute of Chemical Materials(ICM) China Academy of Engineering Physics(CAEP)Mianyang 621900China Hunan Yinfeng New Energy Co. Ltd.Changsha 430019China

Metallic lithium is regarded as one of the most promising electrode materials to break through the energy density bottleneck of current commercial lithium-ion ***,the practical implementation of lithium metal anode is limited by the unstable electrode interface significantly,which directly induces a low Coulombic efficiency,short cycling lifespan,and dendritic lithium growth *** this study,via in situ electropolymerization,lithiophilic and conformal polyaniline layer is developed to improve the initial lithium nucleation and plating process,reducing the interface charge transfer resistance and promoting uniform lithium plating/stripping ***,the polyaniline layer exhibits good adhesion to the *** a result,the Li/Cu half cell delivers a high Coulombic efficiency of 99.1%for 400 cycles at 1.0 mA·cm^(−2)with polyaniline *** addition,long-term stable cycling at a current density of 1.0 mA·cm^(−2)for 1300 h has been achieved for lithium metal *** strategy provides a new perspective for the practical lithium metal batteries.

关键词： polyaniline in situ electropolymerization electrode interface lithium metal anode

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High-performance flexible all-solid-state asymmetric supercapacitors based on binder-free MXene/cellulose nanofiber anode and carbon cloth/polyaniline cathode

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Nano Research 2023年第5期16卷 7696-7709页

作者： Xiaoyu Bi Meichun Li Guoqiang Zhou Chaozheng Liu Runzhou Huang Yang Shi Ben Bin Xu Zhanhu Guo Wei Fan Hassan Algadi Shengbo Ge Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China School of Petroleum Engineering China University of Petroleum(East China)Qingdao 266580China Integrated Composites Lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK School of Textile Science and Engineering&Key Laboratory of Functional Textile Material and Product of Ministry of Education Xi'an Polytechnic UniversityXi'an 710048China College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Department of Electrical Engineering Faculty of EngineeringNajran UniversityNajran11001Saudi Arabia

The search for wearable electronics has been attracted great efforts,there is an ever-growing demand for all-solid-state flexible energy storage ***,it is a challenge to obtain both positive and negative electrodes with excellent mechanical strength and match positive and negative charges to achieve high energy densities and operate voltages to satisfy practical application ***,flexible MXene(Ti_(3)C_(2)Tx)/cellulose nanofiber(CNF)composite film negative electrodes(MCNF)were fabricated with a vacuum filtration method,as well as positive electrodes(CP)by combining polyaniline(PANI)with carbon cloth(CC)using an in-situ polymerization *** positive and negative free-standing electrodes exhibited excellent electrochemical behavior and bendable/foldable *** a result,the all-pseudocapacitance asymmetric device of MCNF//CP assembled with charge-matched between anode and cathode achieves an extended voltage window of 1.5 V,high energy density of 30.6 Wh·kg^(−1)(1211 W·kg^(−1)),86%capacitance retention after 5000 cycles,the device maintains excellent bendability,*** work will pave the way for the development of all-pseudocapacitive asymmetric supercapacitors(ASC)with simultaneously preeminent mechanical properties,high energy density,wide operating voltage window.

关键词： MXene cellulose nanofiber polyaniline asymmetric supercapacitors

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High-performance carbon nanotube/polyaniline artificial yarn muscles working in biocompatible environments

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Nano Research 2023年第3期16卷 4143-4151页

作者： Jian Qiao Yulong Wu Chengfeng Zhu Lizhong Dong Kunjie Wu Yulian Wang Wei Yang Min Li Jiangtao Di Qingwen Li Key Laboratory of Multifunctional Nanomaterials and Smart Systems Advanced Materials DivisionSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China State Key Laboratory of Advanced Power Transmission Technology State Grid Smart Grid Research Institute Co.Ltd.Beijing 102209China School of Materials Science and Engineering Key Laboratory of Aerospace Materials and PerformanceMinistry of EducationBeihang UniversityBeijing 100191China

Implantable artificial muscles are of great importance for muscle function restoration and physical augmentation but are still ***,we report an artificial muscle by soaking-polymerization of polyaniline(PANI)inside a carbon nanotube(CNT)*** in aqueous biocompatible solutions,the yarn muscle generates a large contractile stroke of 17%and high isometric stress of 8 MPa at voltages lower than 2 *** excellent performance can be ascribed to the large actuation volume that is enabled by the fast electrochemical redox of PANI confined in a coiled yarn *** actuation performance outperforms that of previously reported aqueous artificial yarn ***,the yarn muscle can work well and maintain excellent actuating performance in other biocompatible solutions such as normal saline and Na2SO4 aqueous solution,which makes the CNT/PANI yarn muscles suitable for implantable bionic ***,a biomimetic arm was fabricated to demonstrate the applications of the CNT/PANI yarn artificial muscle in implantable muscle,underwater robots,and soft exoskeletons.

关键词： carbon nanotube polyaniline biocompatible implantable artificial muscle

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Simultaneous degradation of RhB and reduction of Cr(Ⅵ) by MIL-53(Fe)/polyaniline(PANI) with the mediation of organic acid

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Chinese Journal of Chemical Engineering 2022年第2期35卷 55-63页

作者： Wanyuan Wang Chengxin Wen Daoyuan Zheng Chunhu Li Junjie Bian Xinbo Wang Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education Ocean University of ChinaQingdao 266100China School of Environmental Science and Engineering Shandong UniversityQingdao 266237China

MIL-53(Fe)/polyaniline(PANI) composite was prepared by in situ depositing PANI on the surface of MIL-53(Fe) and their catalytic performances on the simultaneous removal of Rh B and Cr(Ⅵ) were investigated. The elimination efficiency of both RhB and Cr(Ⅵ) reached more than 98% under pH = 2 where hydrochloric acid and citric acid were used to adjust the pH. The results indicated that MIL-53(Fe)/PANI revealed an obvious pH response to the degradation of RhB, while citric acid promoted the Cr(Ⅵ)photoreduction. UV–Vis spectra, EIS, and photocurrent response experiments showed that MIL-53(Fe)/PANI had a better light response and carrier migration ability than MIL-53(Fe). The transient absorption spectra also exhibited that the lifetimes of photo-generated carriers were prolonged after the conductive polymer deposition on the MIL-53(Fe) surface. Scavenger experiments demonstrated that the main active species were·O;-and·OH. Combined with activity evaluation results, and the possible photocatalytic mechanism of MIL-53(Fe)/PANI on RhB oxidation and Cr(Ⅵ) reduction was proposed. The addition of conductive polymer can effectively improve the light response of the catalyst under acidic conditions, and meanwhile citric acid also provided a new mediation for the synergistic degradation of multiple pollutants. Good activity and stability of the catalysts made the scale-up purification of acid water feasible under UV–Vis light.

关键词： Photocatalyst MIL-53(Fe) polyaniline Synergistic effects Cr(Ⅵ)-RhB coexistence system

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Ultrahigh rate capability of 1D/2D polyaniline/titanium carbide(MXene)nanohybrid for advanced asymmetric supercapacitors

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Nano Research 2022年第1期15卷 285-295页

作者： Jinhua Zhou Qi Kang Shuchi Xu Xiaoge Li Cong Liu Lu Ni Ningna Chen Chunliang Lu Xizhang Wang Luming Peng Xuefeng Guo Weiping Ding Wenhua Hou Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal AgingShanghai Jiao Tong UniversityShanghai 200240China Analytical Testing Center Yangzhou UniversityYangzhou 225009China

High energy density and enhanced rate capability are highly sought-after for supercapacitors in today's mobile *** this work,polyaniline/titanium carbide(MXene)(PANI/Ti3C2Tx)nanohybrid is synthesized through a facile and cost-effective self-assembly ***-dimensional(10)PANI nanofibers and two-dimensional(20)Ti3C2Tx ***!Ti3C2Tx delivers greatly improved specific capacitance,ultrahigh rate capability(67%capacitance retention from 1 to 100 A·g^(-1))as well as good cycle *** kinetic analysis reveals that PANI/Ti3C2Tx is featured with surface capacitance-dominated process and has a quasi-reversible kinetics at high scan rates,giving rise to an ultrahigh rate *** using PANl!Ti3C2Tx as positive electrode,an 1.8 V aqueous asymmetric supercapacitor(ASC)is successfully assembled,showing a maximum energy density of 50.8 Wh·kg^(-1)·(at 0.9 kW-kg-1)and a power density of 18 kW·kg^(-1)(at 26 Wh·kg^(-1)).Moreover,an 3.0 V organic ASC is also elaborately fabricated,·by using PANI/Ti3C2Tx,achieving an ultrahigh energy density of 67.2 Wh·kg^(-1)(at 1.5 kW·kg^(-1))and a power density of 30 kW·kg^(-1)·(at 26.8 Wh·kg^(-1)).The present work not only improves fundamental understanding of the structure-property relationship towards ultrahigh rate capability electrode materials,but also provides valuable guideline for the rational design of high-performance:energy storage devices with both high energy and power densities.

关键词： MXene polyaniline nanohybrid asymmetric supercapacitor rate capability

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Efficient Construction of a polyaniline-coated DNA Nanoparticle for Photothermal Therapy

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Chemical Research in Chinese Universities 2023年第6期39卷 884-890页

作者： AQIB Raja Muhammad YANG Changping WU Xiaohui WANG Yuang FAN Jing SHANG Yingxu LIU Jianbing DING Baoquan CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for NanoScience and TechnologyBeijing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China School of Materials Science and Engineering Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou 450001P.R.China

Photothermal therapy is a direct and non-invasive therapeutic ***,we report a general strategy for the construction of polyaniline-coated DNA nanoparticles for efficient photothermal *** our design,two G4/hemin-based DNAzymes are precisely organized in a DNA template to mimic the function of horseradish peroxidase(HRP)for the catalytic oxidation of *** polymerization,the polyaniline-coated DNA nanoparticles(PANI/DNA NPs)can be efficiently obtained as the photothermal agent to elicit a pronounced photothermal *** cellular uptake,the noticeable photothermal effect from 808 nm laser irradiation can achieve an efficient proliferation inhibition of tumor *** rationally developed photothermal agent based on DNA template-assisted polymerization presents a new avenue for the development of photothermal therapy.

关键词： Nucleic acid nanostructure Self-assembly Polymeriza-tion polyaniline Photothermal therapy

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