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Composition design of fullerene-based hybrid electron transport layer for efficient and stable wide-bandgap perovskite solar cells

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Journal of Energy Chemistry 2025年第3期102卷 172-178页

作者： Shuai Zeng Hui Wang Xiangyang Li Hailin Guo Linfeng Dong Chuanhang Guo Zhenghong Chen Jinpeng Zhou Yuandong Sun Wei Sun Liyan Yang Wei Li Dan Liu Tao Wang School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070HubeiChina School of Materials and Microelectronics Wuhan University of TechnologyWuhan 430070HubeiChina Key Laboratory of Textile Fiber and Products(Wuhan Textile University) Ministry of EducationWuhan 430200HubeiChina

Fullerene derivatives[6,6]-phenyl-C61-butyric acid methyl ester(PC_(61)BM)has been routinely used as the electron transport layer(ETL)in perovskite solar cells due to its suitable energy levels and good solution ***,its electron mobility and conductivity still need to be further enhanced for constructing high performance perovskite solar cells(PSCs).Herein,by doping the PC_(61)BM with a p-type polymer PM6 and n-type molecule ITIC,efficient wide-bandgap perovskite solar cells with improved efficiency and operational/storage stability are *** spectroscopy and electric measurements indicate PM6 and ITIC can both passivate defects at the perovskite/ETL interface,meanwhile ITIC can elevate the Fermi level of PC_(61)BM to enhance conductivity and PM6 can improve the photo-induced electron mobility of the ETL,facilitating charge extraction and reducing charge *** the results,Cs_(0.17)FA_(0.83)Pb(I_(0.83)Br_(0.17))_(3)wide-bandgap PSCs with PM6:PC_(61)BM:ITIC as the ETL demonstrates a superior efficiency of 22.95%,compared to 20.89%of the PC_(61)BM assisted device.

关键词： Perovskite solar cells Fullerene Electron transport layer Composition

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Thickness-dependent magnetic property of FeNi thin film grown on flexible graphene substrate

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Chinese Physics B 2025年第2期34卷 448-452页

作者： Suixin Zhan Shaokang Yuan Yuming Bai Fu Liu Bohan Zhang Weijia Han Tao Wang Shengxiang Wang Cai Zhou State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China School of Mathematical and Physical Sciences Wuhan Textile UniversityWuhan 430200China School of Integrated Circuits Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory for Magnetism and Magnetic Materials Ministry of EducationLanzhou UniversityLanzhou 730000China

Electronics over flexible substrates offer advantages of flexibility, portability and low cost, and promising applications in the areas of energy, information, defense science and medical service. In recent years, tremendous progress has been witnessed in the development of flexible wearable devices that can be potentially massively deployed. Of particular interest are intelligent wearable devices, such as sensors and storage cells, which can be integrated by flexible magnetoelectronic devices based on magnetic thin films. To examine this further, the magnetic properties of FeNi thin films with different thicknesses grown on flexible graphene substrate are investigated at room temperature. The coercivity increases with increasing thicknesses of FeNi thin film, which can be attributed to the increase of grain size and decrease of surface roughness. Moreover, the thickness modulated magnetic property shows a magnetic anisotropy shift increase with varying thicknesses of FeNi thin film by using measurements based on ferromagnetic resonance, which further enhances the resonance frequency. In addition, the resonance peak is quite stable after bending it for ten cycles. The result is promising for the future design of flexible magnetoelectronic devices.

关键词： resonance frequency FeNi thin film flexible graphene substrate magnetic property

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Stabilizing Co nanoparticles for CO_(2) hydrogenation by lattice-matching confinement in ZnO interlayers

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Nano Research 2025年第4期18卷 98-105页

作者： Wangxing Zhang Yu Luo Sónia A.C.Carabineiro Shuai Lyu Wenwen Xiao Zhiyan He Zhu’an Zheng Junjiang Zhu Hubei Key Laboratory of Biomass Fibers and Eco-dyeing&Finishing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhan 430200China LAQV-REQUIMTE Department of ChemistryNOVA School of Science and TechnologyUniversidade NOVA de Lisboa2829-516 CaparicaPortugal State Key Laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhou 510640China School of Automotive Engineering Yancheng Institute of TechnologyYancheng 224000China

Confining active nanoparticles within specific nanoscale spaces is a promising strategy to improve the catalytic activity,selectivity and stability of *** this study,we present a lattice-matching approach to confine Co particles within ZnO layers(ZnO/Co/ZnO)for CO_(2) hydrogenation,a critical and challenging reaction in the field of CO_(2) utilization and energy *** patterns reveal that the lattice mismatch between ZnO and hexagonal wurtzite CoO(w-CoO)is only 0.18%,facilitating the epitaxial growth of w-CoO on the ZnO surface,or vice *** minimal mismatch enables the successful confinement of w-CoO within the ZnO *** advanced methodology can also be adapted to diverse ZnO morphologies,allowing the optimization of the confined catalyst mol_(CO_(2))·g_(Co)^(-1)·s^(-1) ***,when Co particles are confined within the interlayer of ZnO,they exhibit excellent catalytic activity,achieving a rate of 15.8μ for CO_(2) hydrogenation ***,no appreciable deactivation was observed even after 700 h of continuous *** results introduce a novel approach for the development of confined catalysts with enhanced activity and long-term stability.

关键词： lattice-matching epitaxial growth confined catalyst CO_(2)hydrogenation catalytic stability

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Enhanced light harvesting ability in hollow Pt/TiO2 nanoreactor for boosting tetracycline photodegradation

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Progress in Natural science:Materials International 2024年第4期34卷 767-775页

作者： Danyang Li Yongqi Li Dagui Liao Mengqing Cao Lulu Zhang Shasha Zhang Ling Chen Yawen Chen Huan Wang Jian Qi Feifei You College of Textile and Clothing Yancheng Institute of Technology Hebei Key Laboratory of Flexible Functionals Materials School of Materials Science and Engineering Hebei University of Science and Technology State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences School of Chemical Engineering University of Chinese Academy of Sciences

Utilizing solar energy to decompose tetracycline（TC） is a green strategy to treat wastewater. Herein, a heterogeneous hollow structured TiO2decorated Pt nanoparticles were successfully designed and synthesized via hardtemplate approach and photo-deposition process toward TC photodegradation. The Pt nanoparticles loaded on the surface of hollow structured TiO2can increase the visible light absorption due to the local surface plasmon resonance（LSPR） effect. Furthermore, owing to the tough electron oscillation of the LSPR excitation, the plasmonic hot holes on the surface of Pt nanoparticles can capture the electrons of TiO2, effectively facilitating the separation of photo-excited charge carriers because of the formation of Schottky junction constructed between Pt and TiO2. Combined the natural merits of shorten conveying path of charge carriers and physical structural stability for hollow structure, the optimal Pt/TiO2hetero-junction hybrid showed superior photocatalytic activity and durability for TC photodegradation with the degradation efficiency of 93.8 % after 30 min and the rate constant of 0.09196 min-1under 300 W Xe lamp irradiation. This work displays a heterogeneous hybrids catalyst based on eco-friendly metal and semiconductor materials which can be used in the fields including without limitation TC photodegradation.

关键词： Pt/TiO2 Hollow structure Photodegradation Tetracycline Hetero-junction

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Electrochemical Cascade Annulation for the Synthesis of 3-Sulfanylquinoline Derivatives under Mild Conditions

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Chinese Journal of Chemistry 2024年第16期42卷 1833-1838页

作者： Ke Li Ming-Zhong Guo Zhuo Chen Hao-Ran Li Weisi Guo Ming Li Lin-Bao Zhang State Key Laboratory Base of Eco-Chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science&TechnologyQingdaoShandong 266042China

An efficient electrochemical approach has been developed for the construction of 3-sulfanylquinoline derivatives by treating phenylethynylbenzoxazinanones with disulfides in an undivided *** protocol provided a convenient route to functionalized quinolines with good functional group ***,it does not require any metal catalysts or additives,furnishing a series of biologicalquinolines inmoderatetogoodyields.

关键词： Electrocatalysis Electrooxidation Annulation 3-Sulfany quinoline C3-thioetherification

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Waste Cotton-Derived Fiber-Based Thermoelectric Aerogel for Wearable and Self-Powered Temperature-Compression Strain Dual-Parameter Sensing

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Engineering 2024年第8期39卷 235-243页

作者： Xinyang He Mingyuan Liu Jiaxin Cai Zhen Li Zhilin Teng Yunna Hao Yifan Cui Jianyong Yu Liming Wang Xiaohong Qin Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China Key Laboratory of Science and Technology of Eco-Textiles Ministry of EducationJiangnan UniversityWuxi 214122China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China

The rapid development of the global economy and population growth are accompanied by the production of numerous waste *** leads to a waste of limited resources and serious environmental pollution problems caused by improper *** rational recycling of wasted textiles and their transformation into high-value-added emerging products,such as smart wearable devices,is ***,we propose a novel roadmap for turning waste cotton fabrics into three-dimensional elastic fiber-based thermoelectric aerogels by a one-step lyophilization process with decoupled self-powered temperature-compression strain dual-parameter sensing *** thermoelectric aerogel exhibits a fast compression response time of 0.2 s,a relatively high Seebeck coefficient of 43μV·K^(-1),and an ultralow thermal conductivity of less than 0.04 W·m^(-1)·K^(-1).The cross-linking of trimethoxy(methyl)silane(MTMS)and cellulose endowed the aerogel with excellent elasticity,allowing it to be used as a compressive strain sensor for guessing games and facial expression *** addition,based on the thermoelectric effect,the aerogel can perform temperature detection and differentiation in self-powered mode with the output thermal voltage as the stimulus ***,the wearable system,prepared by connecting the aerogel-prepared array device with a wireless transmission module,allows for temperature alerts in a mobile phone application without signal interference due to the compressive strains generated during ***,our strategy is significant for reducing global environmental pollution and provides a revelatory path for transforming waste textiles into high-value-added smart wearable devices.

关键词： Waste textiles High value-added recycling Thermoelectrics Elasticity Decoupled sensing

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Tough Hydrogen Bonding Crosslinked Poly(3-fluorothiophene)Network via Electrosynthesis for High-performance Electrochromic Supercapacitors

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Chinese Journal of Polymer science 2024年第11期42卷 1749-1757,I0011页

作者： Chun-Hui Du Yu-Hua Xu Hui Li Zhi-Xin Wu Han-Jun Yang Xi-Mei Liu Bao-Yang Lu Guang-Ming Nie Ge Zhang Jiangxi Key Lab of Flexible Electronics Flexible Electronics Innovation InstituteJiangxi Science&Technology Normal UniversityNanchang330013China Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science MOEState Key Laboratory Base of Eco-chemical EngineeringCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao266042China

As a type of bi-functional device,electrochromic supercapacitors(EC-SCs)have attracted extensive attention in diverse applications such as flexible ***,despite recent encouraging progress,rational design and development of high-performance EC-SC materials with desirable stability remain challenging for practical ***,we propose a fluorination strategy to develop high-performance EC-SC materials with tough hydrogen bonding cross-linked intermolecular polymer network by one-step electrosynthesis of *** electrosynthesized free-standing poly(3-fluorothiophene)(PFT)films simultaneously achieve high electrochromic performance(optical contrast 42%at 560 nm with reversible color changes between purple and blue),and good capacitance property(290 F·g^(-1),1 A·g^(-1)),as well as outstanding cyclic stability(<2%reduction after 20000 cycles).We further demonstrate the fabrication of PFT-based flexible electrochromic supercapacitor devices(FESDs),and the resultant devices can be used to visually monitor the energy storage state in real-time and maintain outstanding stability under mechanical distortion like *** a tough fluorination hydrogen bonding cross-linking strategy may provide a new design concept for high-performance EC-SC materials and reliable FESDs toward practical applications.

关键词： Flexible electrochromic-supercapacitors Conducting polymers Hydrogen bonding crosslinking Electrosynthesis Polythiophene

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Copper silicate nanoneedle arrays on reduced graphene oxide like“shelter forest”guiding Zn gradient deposition

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Green Energy & Environment 2025年第5期10卷 967-981页

作者： Na Gao Yang Wang Zhanming Gao Tianming Lv Mengyu Rong Xueying Dong Dongzhi Chen Changgong Meng Yifu Zhang State Key Laboratory of Fine Chemicals School of ChemistryDalian University of TechnologyDalian116024China State Key Laboratory of New Textile Materials&Advanced Processing Technology Wuhan Textile UniversityWuhan430073China Hubei Key Laboratory of Radiation Chemistry and Functional Materials School of Nuclear Technology and Chemistry&BiologyHubei University of Science and TechnologyXianning437100China College of Environmental and Chemical Engineering Dalian UniversityDalian116622China

With the sustainable and efficient development of aqueous zinc ion batteries(AZIBs),the research on addressing the issues of the adaptability and durability of zinc anodes has been hot-topic and is still of great *** this work,inspired by the sand treatment and afforestation of the Gobi Beach in Northwest China to ameliorate the problem of wind and sand encroachment,we propose a material with a morphology similar to that of a“shelter forest”,CuSiO_(3)nanoneedles arrays grown on both sides of reduced graphene oxide(rGO@CuSi),as a coating layer on the zinc metal surface to guide Zn gradient *** presence of rGO improves the electrical conductivity of CuSiO_(3),and the finite element simulation of the electric field and Zn^(2+)concentration proves that the electric field distribution can be effectively homogenized and the local current density can be reduced for the rGO@CuSi-Zn electrode with the surface presenting the shape of a protective *** is due to the abundant pores between the nano-needle array structures on the surface of the electrode,which provide high electron and ion transport paths,and are conducive to achieving uniform Zn deposition,like the principle of wind-sand stabilization by protective *** electrochemical experiments and density functional theory calculations show that the negatively charged surface of r GO@CuSi with good Zn affinity is more capable of guiding Zn^(2+)*** to its inherent material and structural characteristics,the r GO@CuSi-Zn anode has a high specific capacity and good cycling *** study provides insight for interface engineering like protective forest to accelerate the commercialization of high-performance Zn-based batteries.

关键词： Shelter forest CuSiO3nanoneedles arrays Coating Zn anode protection Aqueous Zn-ion batteries

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Reversible-gel-assisted, ambient-pressure-dried,multifunctional, flame-retardant biomass aerogels with smart high-strength-elasticity transformation

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National science Review 2024年第11期11卷 203-214页

作者： Ting Wang Ying-Jiao Zhan Ming-Jun Chen Lei He Wen-Li An Shimei Xu Wei Wang Jian-Jun Shi Hai-Bo Zhao Yu-Zhong Wang College of Chemistry The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE)National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)State Key Laboratory of Polymer Materials Engineering Sichuan University Green Preparation and Recycling Laboratory of Functional Polymeric Materials College of ScienceXihua University Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials& Processing Technology

Bio-based aerogels, which are poised as compelling thermal insulators, demand intricate synthesis procedures and have limited durability under harsh conditions. The integration of smart stimuli–response transitions in biomass aerogels holds promise as a solution, yet remains a challenge. Here, we introduce a pioneering strategy that employs reversible-gel-assisted ambient-pressure drying without organic solvents to craft multifunctional bio-based aerogels. By exploiting the thermally reversible gelling propensity of select biomasses, we anchor emulsified bubbles within cross-linked hydrogels, circumventing surface tension issues during mild drying. The resultant aerogels feature a robust porous matrix that is imbued with stable bubbles, yielding low thermal conductivity, high flame retardancy and robust resistance to diverse *** innovative approach facilitates a paradigm shift in intelligent fire protection in which aerogels transition from robust to flexible in response to water stimuli, effectively shielding against thermal hazards and external forces. This work opens up a facile, eco-friendly and mild way to fabricate advanced biomass aerogels with stimuli-responsive transformation.

关键词： biomass aerogel ambient-pressure drying flame retardance solvation-controlled elastification harsh-condition resistance

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Manganese catalyzed urea and polyurea synthesis using methanol as C1 source

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Chinese Chemical Letters 2023年第4期34卷 304-308页

作者： Jiaxin Guo Jun Tang Hui Xi Sheng-Yin Zhao Weiping Liu Key Laboratory of Science and Technology of Eco-Textile Ministry of EducationCollege of ChemistryChemical Engineering and BiotechnologyDonghua UniversityShanghai 201620China Key Laboratory of Tobacco Flavor Basic Research of CNTC Zhengzhou Tobacco Research Institute of CNTCZhengzhou 450001China

The manganese-catalyzed dehydrogenative coupling between methanol and amines for the synthesis of ureas and polyureas is described. Importantly, catalytic efficiency can be improved by the newly synthesized MACHO ligands. Furthermore, this highly atom-economical protocol demonstrates a broad substrate scope with good functional group tolerance, producing H_(2)as the sole byproduct. Mechanistic studies disclose that formamide is formed through manganese-catalyzed formylation of amine with *** dehydrogenation affords a transient isocyanate, which is attacked by another equivalent of amine to provide the final product.

关键词： Manganese Homogeneous catalysis Urea synthesis Polyurea synthesis Methanol as C1 source

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