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

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 devices.polyaniline(PANI)is considered as a dominant material in this sector,as it is endowed with the optical properties of both metal and semiconductors.However,its widespread application got delineated because of its irregular rigid form,level of conductivity,and precise choice of solvents.Incorporating PANI in textile materials can generate promising functionality for wearable applications.This research work employed a straightforward in-situ chemical oxidative polymerization to synthesize PANI on Cotton fabric surfaces with varying dopant(HCl)concentrations.Pre-treatment using NaOH is implemented to improve the conductivity of the fabric surface by increasing the monomer absorption.This research explores the morphological and structural analysis employing SEM,FTIR and EDX.The surface resistivity was measured using a digital multimeter,and thermal stability is measured using TGA.Upon successful polymerization,a homogenous coating layer is observed.It 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 stability.The electro-thermal energy can also reach up to 38.2°C within 50 s with a deployed voltage of 15 V.The 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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Natural high-porous diatomaceous-earth based self-floating aerogel for efficient solar steam power generation

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Green Energy & Environment 2024年第2期9卷 378-389页

作者： Aitang Zhang Kai Wang Md Julker Nine Mengyu Cao Hanwen Zong Zhiqiang Liu Hanwen Guo Jingquan Liu Dusan Losic College of Materials Science and Engineering Institute for Graphene Applied Technology InnovationCollaborative Innovation Center for Marine Biomass Fibers Materials and Textiles of Shandong ProvinceQingdao UniversityQingdao266071China The University of Adelaide School of Chemical Engineering and Advanced MaterialsARC Graphene Research HubNorth Engineering BuildingN206 AdelaideSA 5005Australia

The application of solar steam generation in seawater desalination is an effective way to solve the shortage of fresh water resources.At present,many kinds of photothermal conversion materials have been developed and used as evaporators in seawater desalination.However,some evaporators need additional thermal insulation or water supply devices to achieve efficient photothermal conversion.In addition,their complex,time consuming and no scalable preparation process,high cost of raw materials and poor salt resistance hinder the practical application of these evaporator.Owing to its distinctive nanoporous structure,diatomite as fossilized single-cells algae diatoms is a promising natural silica-based material for seawater desalination.They are taken from sea and that makes true sense to use them in the sea.Herein,we report the first example of synthesis robust three-dimensional(3D)natural-diatomite composite by assembling polyaniline nanoparticles covered diatomite into the polyvinyl alcohol pre-treated melamine foam frameworks and demonstrate its application as new evaporator for seawater desalination.The porous framework does not only improve the sunlight scattering efficiency,but also offer large network of channels for water transportation.The inherent mechanism behind salt desalination process involves the absorption of water molecules on the surface of the internal silica micro-nano pores,and evaporation under the heat induced by the polyaniline absorbed sunlight.Meanwhile,the metal ions are segregated by many available pores and channels to achieve the self-desalting effect.The developed evaporator possesses the superiority of multi-stage pore structure,strong hydrophilicity,low thermal conductivity,excellent light absorption,fast water transportation and salt-resistant crystallization as well as good durability.The evaporation rate without an additional device is found to be 1.689 kg m^(-2)h^(-1)under 1-Sun irradiation,and the energy conversion efficiency is as high as 95%.This work creates a platform and dev

关键词： Diatomite Micro/nanopores polyaniline Three-dimensional composite Solar steam generation

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Mo@PANI-catalyzed oxidative deoximation reaction

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Chinese Chemical Letters 2024年第2期35卷 407-410页

作者： Yiyang Zhang Wen Li Zuofeng Hu Xiaobi Jing Lei Yu School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Yangzhou Yangzi Auto Interior & Exterior Co. Ltd.Yangzhou 225119China

Deoximation is an important transformation in synthetic industry.It can be employed in protection,characterization and purification of the carbonyls,and in the synthesis of ketones from non-carbonyl molecules.In the field,oxidative deoximation reaction can utilize the driving force caused by the oxidation process so that the reaction can occur under relatively mild conditions.Recently,we designed and prepared polyaniline-supported molybdenum(Mo@PANI)just by immersing PANI into the EtOH/H_(2)O solution of MoCl_(5).The material was successfully applied as the efficient catalyst for oxidative deoximation reactions,which were performed in ethanol using H_(2)O_(2)as the clean oxidant.The substrate scope of the reaction was wide.It could be applied on heterocycle-containing substrates,making this protocol preferable for pharmaceutical intermediate synthesis.Since Mo is a necessary trace element for both animals and plants,this method is environment-friendly and is suitable for large-scale preparation.This work as the first example of Mo-catalyzed oxidative deoximation reaction may inspire novel ideas for both catalyst design and synthetic process development.

关键词： Molybdenum polyaniline Oxidation Deoximation Carbonyl

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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 solutions.Adsorption 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 investigated.The results showed that all composites were more efficient in lead removal compared to the fruit peels alone.The 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 glycol.This 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 Freundlich.Besides,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 batteries.However,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 behavior.In 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 behavior.Meanwhile,the polyaniline layer exhibits good adhesion to the substrate.As 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 layer.In addition,long-term stable cycling at a current density of 1.0 mA·cm^(−2)for 1300 h has been achieved for lithium metal anode.This 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 devices.However,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 requirements.Here,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 method.Both positive and negative free-standing electrodes exhibited excellent electrochemical behavior and bendable/foldable flexibility.As 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,simultaneously.This 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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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 world.In this work,polyaniline/titanium carbide(MXene)(PANI/Ti3C2Tx)nanohybrid is synthesized through a facile and cost-effective self-assembly of.one-dimensional(10)PANI nanofibers and two-dimensional(20)Ti3C2Tx nanosheets.PANl!Ti3C2Tx delivers greatly improved specific capacitance,ultrahigh rate capability(67%capacitance retention from 1 to 100 A·g^(-1))as well as good cycle stability.Electrochemical 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 capability.By 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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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 challenging.Herein,we report an artificial muscle by soaking-polymerization of polyaniline(PANI)inside a carbon nanotube(CNT)yarn.Working 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 V.The 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 structure.The actuation performance outperforms that of previously reported aqueous artificial yarn muscles.Moreover,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 applications.Finally,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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Ce doped polyaniline nanoparticles for absorption and photoacoustic imaging response to GSH in vitro and in vivo

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Bioactive Materials 2022年第11期7卷 197-203页

作者： Yulin Kuang Nanbo Liu Sheng Ye Xiang Li Xuyuan Chen Li Qi Ping Zhu Ruiyuan Liu Xu Wu Department of Thoracic Surgery Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China Guangdong Provincial Key Laboratory of Medical Image Processing School of Biomedical EngineeringSouthern Medical UniversityGuangzhouGuangdong510515China Guangdong Cardiovascular Institute Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhouGuangdong510100China Emergency Department Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China

Glutathione(GSH)is an important biological thiol in cells,which is involved in many physiological processes in the organism and regulates pathological processes of cells.Rapid and accurate monitoring of GSH in vitro and in vivo is quite needed in investigating important biochemical events.In this contribution,innovative cerium(Ce)doped polyaniline(Ce–Fe@PANI NPs)were prepared via Fe(III)induced oxidization polymerization method.Upon addition of GSH,the absorption of Ce–Fe@PANI NPs red shifted from the visible to the NIR region,con-firming the excellent absorption response to GSH.Moreover,Ce–Fe@PANI NPs exhibited excellent photoacoustic(PA)imaging enhancement in tube and shifted the PA intensity peak from 680 nm to 820 nm upon addition of GSH.In vitro and in vivo experiment verified that Ce–Fe@PANI NPs can monitor GSH in deep tissues via PA imaging technology.Collectively,this research provides Ce–Fe@PANI NPs would serve as a powerful nano-platform to realize PA imaging detection of GSH in vitro and in vivo.

关键词： Photoacoustic imaging Absorption response polyaniline GSH Deep tissues

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