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Continuous Fe^(3+)releasing enabled complete reconstruction of Ni-based MOF for promoted water oxidation in industrial alkali

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Science China Chemistry 2024年第9期67卷 2949-2957页

作者： Zhaojian Wang Wei Zhang Wenzhong Huang Ruohan Yu Changliang Chen Liqiang Mai Liang Zhou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Sanya Science and Education Innovation Park Wuhan University of TechnologySanya 572000China Hubei Longzhong Laboratory Wuhan University of Technology(Xiangyang Demonstration Zone)Xiangyang 441000China

Most oxygen evolution reaction(OER)electrocatalysts show poor stability under industrial alkaline conditions(20–30 wt.%KOH).Therefore,it is essential to develop stable,efficient,and low-cost OER catalysts for industrial water ***,we present a straightforward approach for the complete electrochemical reconstruction of Ni-BDC,a Ni-based metal-organic framework,for *** method involves the continuous release of Fe^(3+)from Fe foam counter electrode in a high-concentration(6.0 M,25 wt.%)KOH *** continuously Fe^(3+)releasing not only realizes in situ Fe^(3+)doping,but also introduces abundant defects in the obtained catalyst during cyclic voltammetry activation,thereby accelerating the electrochemical *** reconstructed OER catalyst(Fe-doped nickel hydroxide/oxyhydroxide nanosheets supported on Ni foam,Fe-NiO_(x)(OH)y/NF)manifests a low overpotential of 217 mV at 10 mA cm^(-2)and 263 m V at 100 m A cm^(-2)in 1.0 M ***,the Fe-NiO_(x)(OH)_(y)/NF also demonstrates high stability in 30 wt.%*** strategy of regulating the electrochemical reconstruction process sheds light on the construction of stable and efficient OER catalysts for industrial water electrolysis.

关键词： oxygen evolution reaction industrial alkaline conditions metal-organic framework complete reconstruction

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Fe doping 1T phase MoS_(2)with enhanced zinc-ion storage ability and durability for high-performance aqueous zinc-ion batteries

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Rare Metals 2025年第1期44卷 253-263页

作者： Jing-Yi Liu Rong-Jie Zhe Zhan-Hong Peng Yi-Hui Song Lin-Xuan Yang Chen Qing Jun-Ling Guo Jin-Ping Liu Yunnan Key Laboratory of Opto-Electronic Information Technology College of Physics and Electronic Information TechnologyYunnan Normal UniversityKunming 650000China Country State Center for International Cooperation on Designer Low-Carbon and Environmental Materials School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China School of Chemistry Chemical Engineering and Life ScienceState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China

As a promising cathode material for aqueous zinc-ion batteries,1T-MoS_(2)has been extensively investigated because of its facile two-dimensional ion-diffusion channels and high electrical ***,the limited number of available Zn storage sites,i.e.,limited capacity,hinders its application because the inserted Zn^(2+),which form strong electrostatic interactions with 1T-MoS_(2),preventing subsequent Zn^(2+)***,the approach of enlarging the interlayer distance to reduce electrostatic interactions has been commonly used to enhance the capacity and reduce Zn^(2+)migration ***,an enlarged interlayer spacing can weaken the van der Waals force between 1T-MoS_(2)monolayers,easily disrupting the structural ***,to address this issue,an effective strategy based on Fe doping is proposed for 1T-MoS_(2)(Fe-1T-MoS_(2)).The theoretical calculations reveal that Fe doping can simultaneously moderate the rate of decrease in the adsorption energy after gradually increasing the number of stored atoms,and enhance the electron delocalization on metal-O ***,the experiment results show that Fe doping can simultaneously activate more Zn storage sites,thus enhancing the capacity,and stabilize the structural stability for improved cycling ***,Fe-1T-MoS_(2)exhibits a larger capacity(189 mAh·g^(-1)at 0.1 A·g^(-1))and superior cycling stability(78%capacity retention after 400 cycles at 2 A·g^(-1))than pure 1T-MoS_(2).This work may open up a new avenue for constructing high-performance MoS_(2)-based cathodes.

关键词： Aqueous zinc-ion battery 1T-MoS_(2) Fe doping More Zn storage sites Enhanced structural stability

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Bioactive citrate-based polyurethane tissue adhesive for fast sealing and promoted wound healing

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Regenerative Biomaterials 2024年第1期3卷 69-81页

作者： Yan Li Jiawei Liu Chenxi Lian He Yang Mingjiang Zhang Youfa Wang Honglian Dai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Biomedical Materials and Engineering Research Center of Hubei ProvinceWuhan University of TechnologyWuhan 430070China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou 521000China Shenzhen Research Institute of Wuhan University of Technology Shenzhen 518000China

As a superior alternative to sutures,tissue adhesives have been developed significantly in recent ***,existing tissue adhesives struggle to form fast and stable adhesion between tissue interfaces,bond weakly in wet environments and lack *** this study,a degradable and bioactive citrate-based polyurethane adhesive is constructed to achieve rapid and strong tissue *** hydrophobic layer was created with polycaprolactone to overcome the bonding failure between tissue and adhesion layer in wet environments,which can effectively improve the wet bonding *** citrate-based polyurethane adhesive provides rapid,non-invasive,liquid-tight and seamless closure of skin incisions,overcoming the limitations of sutures and commercial tissue *** addition,it exhibits biocompatibility,biodegradability and hemostatic *** degradation product citrate could promote the process of angiogenesis and accelerate wound *** study provides a novel approach to the development of a fast-adhering wet tissue adhesive and provides a valuable contribution to the development of polyurethane-based tissue adhesives.

关键词： tissue adhesive polyurethane citrate wet adhesion

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Accelerated ion/electron transport kinetics and increased active sites via local internal electric fields in heterostructured VO_(2)–carbon cloth for enhanced zinc-ion storage

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Nano Research 2023年第1期16卷 503-512页

作者： Ping Luo Wenwei Zhang Wanyue Cai Zhen Huang Gangyuan Liu Chang Liu Shiyu Wang Feng Chen Lixue Xia Yan Zhao Shijie Dong Lu Xia Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei Engineering Laboratory of Automotive Lightweight Materials and ProcessingNew Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base 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 State Key Laboratory of Silicate Materials for Architectures International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Wuhan Polytechnic University Wuhan 430023China

Although the performance of the self-standing electrode has been enhanced for aqueous zinc-ion batteries(AZIBs),it is necessary to explore and analyse the deep modification mechanism(especially interface effects).Herein,density functional theory(DFT)calculations are applied to investigate the high-performance cathode based on the VO_(2)/carbon cloth composites with heterostructures interface(H-VO_(2)@CC).The adsorption energy comparisons and electron structure analyses verify that HVO_(2)@CC has extra activated sites at the interface,enhanced electrical conductivity,and structural stability for achieving highperformance AZIBs due to the presence of built-in electric field at the ***,the designed self-standing HVO_(2)@CC cathode delivers higher rate capacity,longer-life cyclability,and faster electronic/ion transmission kinetics benefiting from the synergistic *** risks of active material shedding and dissolution during the dis/charge process of two cathodes were evaluated via ex-situ ultraviolet–visible(UV–vis)spectrum and inductively coupled plasma-atomic emission spectroscopy(ICP-AES)***,this investigation also explores the charge storage mechanism of H-VO_(2)@CC through various exsitu and in-situ characterization *** finding can shed light on the significant potential of heterostructures interface engineering in practical applications and provide a valuable direction for the development of cathode materials for AZIBs and other metal-ion batteries.

关键词： aqueous zinc ion battery heterostructures interface built-in electric field VO_(2)(B) density functional theory

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An artificial interphase enables stable PVDF-based solid-state Li metal batteries

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Nano Research 2024年第3期17卷 1482-1490页

作者： Mengjun Wu Jiangping Song Jiaheng Lei Haolin Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Chemistry School of ChemistryChemical Engineering and Life SciencesWuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528200China

Composite polymer electrolytes(CPEs)have attracted much attention for high energy density solid-state lithium-metal batteries owing to their flexibility,low cost,and easy ***,the unstable Li/CPE interface is always challengeable for the practical utilization of ***,a polymer interlayer containing K+prepared by ultraviolet(UV)-curing precursor solution is coated on Li surface to stabilize the interface between poly(vinylidene difluoride)(PVDF)composite electrolytes and Li *** from the physical barrier of the interlayer,the continuous decomposition of PVDF is restrained and the intimate contact between electrode and electrolyte is also achieved to reduce the interface ***,the added K+is utilized to further regulate smooth Li *** a consequence,the symmetric Li|Li cell with coated Li demonstrates steady cycling at 0.4 mAh·cm^(-2) and a high critical current density of 1 mA·cm^(-2).The assembled Li|LiFePO_(4) cell presents outstanding cycling stability(capacity retention of 90%after 400 cycles at 1 C)and good rate *** associated pouch cell performs impressive flexibility and *** work provides a convenient strategy to achieve stable Li/PVDF interface for high-performance PVDF-based solid state Li metal batteries.

关键词： interfacial modification solid-state batteries composite polymer electrolytes interfacial compatibility lithium dendrite

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Unraveling the Role of Nitrogen-Doped Carbon Nanowires Incorporated with MnO_(2)Nanosheets as High Performance Cathode for Zinc-Ion Batteries

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Energy & Environmental materials 2023年第3期6卷 205-213页

作者： Xiaohui Li Qiancheng Zhou Ze Yang Xing Zhou Dan Qiu Huajun Qiu Xintang Huang Ying Yu Institute of Nanoscience and Technology College of Physical Science and TechnologyCentral China Normal UniversityWuhan 430079China State Key Laboratory of Advanced Technology for Materials Synthesis and processing Wuhan University of Technology Wuhan 430070China

Manganese-based cathode materials are considered as a promising candidate for rechargeable aqueous zinc-ion batteries(ZIBs).Suffering from poor conductive and limited structure tolerance,various carbon matrix,especially N-doped carbon,were employed to incorporate with MnO_(2)for greatly promoted electrochemical ***,the related underlying mechanism is still unknown,which is unfavorable to guide the design of high performance ***,by incorporating layered MnO_(2)with N-doped carbon nanowires,a free-standing cathode with hierarchical core-shell structure(denoted as MnO_(2)@NC)is *** from the N-doped carbon and rational architecture,the MnO_(2)@NC electrode shows an enhanced specific capacity(325 mAh g^(−1)at 0.1 A g^(−1))and rate performance(90 mAh g^(−1)at 2 A g^(−1)),as well as improved cycling ***,the performance improvement mechanism of MnO_(2)incorporated by N-doped carbon is investigated by X-ray photoelectron spectroscopy(XPS),Raman spectrums and density functional theory(DFT)*** N atom elongates the Mn-O bond and reduces the valence of Mn^(4+)ion in MnO_(2)crystal by delocalizing its electron ***,the electrostatic repulsion will be weakened when Zn^(2+)/H^(+)insert into the host MnO_(2)lattices,which is profitable to more cation insertion and faster ion transfer kinetics for higher capacity and rate *** work elucidates a fundamental understanding of the functions of N-doped carbon in composite materials and shed light on a practical pathway to optimize other electrode materials.

关键词： core-shell nanostructure MnO_(2)nanosheets N-doped carbon Zn ion batteries

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Universal Encapsulation Adhesive for Lead Sedimentation and Attachable Perovskite Solar Cells with Enhanced Performance

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Energy & Environmental materials 2024年第3期7卷 303-310页

作者： Xuehao Zhu Haoyu Cai Cong Bai Zhengzhe Wu Wenjian Shen Yiming Xiong Juan Zhao Fuzhi Huang Yibing Cheng Jie Zhong Research Centre for Advanced Thin Film Photovoltaics State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528216China School of Automobile Engineering Wuhan University of TechnologyWuhan 430070China

In this work,a modified polyurethane adhesive(PUA)was prepared to realize a convenient encapsulation strategy for lead sedimentation and attachable perovskite solar cells(A-PSCs).The modified PUA can completely self-heal within 45 min at room temperature with an efficient lead ion-blocking rate of 99.3%.The PUA film can be coated on a metal electrode with slight efficiency improvement from 23.96%to 24.15%.The thermal stability at 65℃and the humidity stability at 55%relative humidity(RH)are superior to the devices encapsulated with *** PUA film has strong adhesion to the flexible substrate and the initial efficiency of the flexible perovskite module(17.2%)encapsulated by PUA remains 92.6%within 1825 *** results suggest that PUA encapsulation is universal for rigid and flexible PSCs with enhanced stability and low lead ***,it was found that flexible PSCs can be well attached to various substrates with PUA,providing a facile route for the A-PSCs in various scenarios without additional encapsulation and installation.

关键词： adhesive attachable device flexible module lead leakage polyurethane

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High thermoelectric performance of flexible Ag/Ag_(2)Se composite film on nylon for low-grade energy harvesting

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Journal of materials Science & technology 2024年第12期179卷 79-85页

作者： Ying Liu Jiajia Li Zixing Wang Ping Wei Wenyu Zhao Lidong Chen Kefeng Cai Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education Shanghai Key Laboratory of Development and Application for Metal-Functional MaterialsSchool of Materials Science&EngineeringTongji UniversityShanghai 201804China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

In this work,Ag/Ag_(2)Se composite films with excellent thermoelectric(TE)properties and flexibility are prepared based on a simple one-pot *** adjusting the nominal ratios of Ag/Se,an optimal Ag/Ag_(2)Se composite film shows a large power factor of~2275 μW m^(-1) K^(-2) at 300 *** an outstand-ing TE performance of the composite film is due to the unique microstructure and the synergistic effect between the Ag and Ag_(2)***,the composite film also shows outstanding flexibility(~91.8%of the initial electrical conductivity is maintained,and the S is unchanged after 1500 bending cycles with a bending radius of 4 mm).Furthermore,a 4-leg flexible TE generator assembled with the optimal film produces a voltage of 14.06 mV and 4.96 μW at a temperature difference of 30.4 *** work provides a new inspiration for the preparation of flexible Ag_(2)Se-based films with excellent TE performance near room temperature.

关键词： Thermoelectric Ag/Ag_(2)Se Flexible Film Power generator

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Mitigating the capacity fading of Si nanoparticles through V_(2)O_(3) and carbon dual coatings

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Journal of materials Science & technology 2024年第24期191卷 17-22页

作者： Ruhan He Hao Li Aoyuan Chen Liqiang Mai Liang Zhou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China International School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Longzhong Laboratory Wuhan University of Technology(Xiangyang Demonstration Zone)Xiangyang 441000China Hainan Institute Wuhan University of TechnologySanya 572000China

Nano-structured silicon(Si)has demonstrated high capacity for lithium storage;however,it suffers from unsatisfactory cycling stability caused by large volume change and poor interface ***,it is very important to construct functional coatings on nano-structured Si to buffer the volume change and improve the interface ***,we successfully construct V_(2)O_(3) and carbon(C)dual-layer coatings on Si nanoparticles with ultrathin and uniform thickness using a facile spray drying and chemical vapour deposition *** as-prepared Si@V_(2)O_(3)@C manifests a high specific capacity of 2230 mAh g^(-1) after 100 cycles under the current density of 200 mA g^(-1),showing its promising application prospect in lithium *** situ electrochemical impedance spectroscopy(EIS)results at different lithiation states and different cycles show a more stable interface resistance of Si@V_(2)O_(3)@C than pristine *** V_(2)O_(3) and C dual coating layers not only ensure the Si nanoparticles with high structural stability by buffering volume expansion and preventing electrolyte penetration,but also guarantee a superior electron transport rate because of the metallic V_(2)O_(3) as well as the highly conductive carbon layers.

关键词： Lithium-ion batteries Silicon anode Vanadium(Ⅲ)oxide Spray drying SEI layer

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3D ordered macroporous sulfur-doped g-C_(3)N_(4)/TiO_(2)S-scheme photocatalysts for efficient H_(2)O_(2)production in pure water

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Journal of materials Science & technology 2023年第31期162卷 1-10页

作者： Zicong Jiang Qing Long Bei Cheng Rongan He Linxi Wang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha 410022China Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074China

Photocatalytic hydrogen peroxide(H_(2)O_(2))production offers a clean and cost-efficient alternative to the traditional anthraquinone oxidation ***,a step-scheme(S-scheme)heterojunction photocat-alyst is fabricated by coupling TiO_(2)with three dimensionally ordered macroporous sulfur-doped graphitic carbon nitride(3DOM SCN/T)by electrostatic *** optimized photocatalyst achieved a high photocatalytic H_(2)O_(2)production activity with a yield of 2128μmol h^(−1)g^(−1)without the addition of hole *** remarkable performance was attributed to the synergy between the 3DOM framework and the S-scheme *** former enhances light harvesting and provides abundant active sites for surface reactions,while the latter promotes the spatial separation of photogenerated carriers and enhances the redox ***,the mechanism of photocatalytic H_(2)O_(2)production over the 3DOM SCN/T S-scheme composite is *** work provides novel insights into the development of effi-cient photocatalysts for H_(2)O_(2)production from water and O_(2).

关键词： Photocatalysis Step-scheme heterojunction Three dimensionally ordered macroporous Hydrogen peroxide O_(2)reduction reaction

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