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Side-Chain Engineering of Non-Fullerene Acceptors with Trialkylsilyloxy Groups for Enhanced Photovoltaic Performancet

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Chinese Journal of Chemistry 2024年第18期42卷 2153-2160页

作者： Qingyuan Wang Qi Chen Shixin Meng Li Tian Haiqiao Wang Yu Chen Zitong Liu Lingwei Xue Zhi-Guo Zhang State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijingUniversityof Chemical TechnologyBeijing 100029China School of Materials Science and Engineering Henan University of TechnologyZhengzhouHenan 450001China Beijing Engineering Research Center for the Synthesis and Applications of Waterborne Polymers Beijing University of Chemical TechnologyBeijing100029China The Institute of High Energy Physics Chinese Academy of SciencesBejing 100049China state Key Laboratory of Applied Organic Chemistry(SKLAoc) College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouGansu730000China Yaoshan Laboratory Pingdingshan UniversityPingdingshanHenan 467000China

Side-chain engineering has emerged as a highly effective strategy for tailoring the aggregation behavior and charge transport properties of non-fullerene small molecule acceptors(SMAs).In this study,we designed and synthesized two SMAs,namely BTPSi-Bu and BTPSi-Pr,respectively incorporating tributylsilyloxy and trisopropylsilyloxy groups in their outer ***,BTPSi-Bu exhibited better planarity,crystallization,and favorable phase separation when paired with PM6 donor polymer compared to its counterpart,*** resulting organic solar cells,utilizing the PM6:BTPSi-Bu blend,demonstrated a remarkable power conversion efficiency of 17.41%and a high open-circuit voltage of 0.859 *** findings underscore the significance of integrating trialkylsilyloxy side chains into SMAs as a rational design approach for enhancing the performance of photovoltaic systems.

关键词： Organic solar cells Non-fullerene acceptors Oligomers Side-chain engineering Energy conversion synthesis design Donor-acceptor systems

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Heterogeneous Cu_(x)O Nano‑Skeletons from Waste Electronics for Enhanced Glucose Detection

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Nano-Micro Letters 2024年第11期16卷 554-568页

作者： Yexin Pan Ruohan Yu Yalong Jiang Haosong Zhong Qiaoyaxiao Yuan Connie Kong Wai Lee Rongliang Yang Siyu Chen Yi Chen Wing Yan Poon Mitch Guijun Li Center on Smart Manufacturing Division of Integrative Systems and DesignThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SAR 999077People’s Republic of China The Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya 572000People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China

Electronic waste(e-waste)and diabetes are global challenges to modern ***,solving these two challenges together has been challenging until ***,we propose a laser-induced transfer method to fabricate portable glucose sensors by recycling copper from *** bring up a laser-induced full-automatic fabrication method for synthesizing continuous heterogeneous Cu_(x)O(h-Cu_(x)O)nano-skeletons electrode for glucose sensing,offering rapid(<1 min),clean,air-compatible,and continuous fabrication,applicable to a wide range of Cu-containing *** this approach,h-Cu_(x)O nanoskeletons,with an inner core predominantly composed of Cu_(2)O with lower oxygen content,juxtaposed with an outer layer rich in amorphous Cu_(x)O(a-Cu_(x)O)with higher oxygen content,are derived from discarded printed circuit *** employed in glucose detection,the h-Cu_(x)O nano-skeletons undergo a structural evolution process,transitioning into rigid Cu_(2)O@CuO nano-skeletons prompted by electrochemical *** transformation yields exceptional glucose-sensing performance(sensitivity:9.893 mA mM^(-1) cm^(-2);detection limit:0.34μM),outperforming most previously reported glucose *** functional theory analysis elucidates that the heterogeneous structure facilitates gluconolactone *** glucose detection device has also been downsized to optimize its scalability and portability for convenient integration into people’s everyday lives.

关键词： Copper oxide Electron 3D tomography E-waste Glucose detection Electrochemical activation

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Design Fe-based Eutectic Medium-Entropy Alloys Fe_2NiCrNb_x

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Acta Metallurgica Sinica(English Letters) 2021年第8期34卷 1103-1108页

作者： Jiafen Song Zishu Chai Jian Zheng Qingfeng Wu Feng He Zenan Yang Junjie Li Jincheng Wang Haiou Yang Zhijun Wang State Key Laboratory of Solidifi cation Processing Northwestern Polytechnical UniversityXi’an 710072China Science and Technology On Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical MaterialsBeijing 100095China

High-entropy alloys have attracted broad research interests due to their unique and intriguing mechanical properties. As a category of high-entropy alloys, eutectic high-entropy alloys combine the advantages of eutectic and high-entropy alloys, with excellent mechanical properties and casting properties. Some eutectic high-entropy alloys have been developed and shown exciting properties. In this paper, based on the physical metallurgy of eutectic high-entropy alloy, medium-entropy alloy Fe_(2)NiCrNb_(x) was designed. The as-cast alloy is composed of FCC and Laves phases, Nb element promotes the formation of primary Laves phase, and the hardness of the alloy increases with the increase in Nb element. Among the four alloys, the eutectic chemical composition at eutectic point is Fe_(2)NiCrNb_(0.34);the alloy has a good strength and plastic balance. The ultimate comprehensive strength is 2267 MPa, and the fracture strain is 30.8%. The experiment data and analyses identified the eutectic points and the excellent mechanical behavior. Moreover, the expensive Co element was replaced by Fe element. This cheap medium-entropy alloy has promising prospect in the consideration of the cost performance ratio.

关键词： Eutectic medium-entropy alloy Microstructure Mechanical properties

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Layered manganese phosphorus trisulfides for high-performance lithium-ion batteries and the storage mechanism

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Carbon Energy 2023年第3期5卷 160-169,170,171页

作者： Hailin Shen Yueling Cai Zhongtao Ma Peng Wang Bingkun Guo Jipeng Cheng Qianqian Li Hongtao Wang Zhongyuan Liu Anmin Nie Jinsong Wu Materials Genome Institute Shanghai UniversityShanghaiChina Shanghai Key Laboratory of Mechanics in Energy Engineering School of Mechanics and Engineering ScienceShanghai Institute of Applied Mathematics and MechanicsShanghai UniversityShanghaiChina State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhouChina Center for X‐mechanics Zhejiang UniversityHangzhouChina State Key Laboratory of Metastable Materials Science and Technology Center for High Pressure ScienceYanshan UniversityQinhuangdaoChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina Nanostructure Research Center Wuhan University of TechnologyWuhanChina

Although advanced anode materials for the lithium-ion battery have been investigated for decades,a reliable,high-capacity,and durable material that can enable a fast charge remains ***,we report that a metal phosphorous trichalcogenide of MnPS_(3)(manganese phosphorus trisulfide),endowed with a unique and layered van der Waals structure,is highly beneficial for the fast insertion/extraction of alkali metal ions and can facilitate changes in the buffer volume during cycles with robust structural *** few-layered MnPS_(3)anodes displayed the desirable specific capacity and excellent rate chargeability owing to their good electronic and ionic *** assembled as a half-cell lithium-ion battery,a high reversible capacity of 380 mA h g^(−1)was maintained by the MnPS_(3)after 3000 cycles at a high current density of 4 A g^(−1),with a capacity retention of close to or above 100%.In full-cell testing,a reversible capacity of 450 mA h g^(−1)after 200 cycles was maintained as *** results of in-situ TEM revealed that MnPS_(3)nanoflakes maintained a high structural integrity without exhibiting any pulverization after undergoing large volumetric expansion for the insertion of a large number of lithium *** kinetics of lithium-ion diffusion,stable structure,and high pseudocapacitance contributed to their comprehensive performance,for example,a high specific capacity,rapid charge-discharge,and long ***_(3)is thus an efficient anode for the next generation of batteries with a fast charge/discharge capability.

关键词： cyclic stability in‐situ TEM MnPS3 pseudocapacitance rate performance

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Stacking machine learning models for predicting hardness and modulus in refractory metal high-entropy nitride coatings

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International Journal of Refractory Metals and Hard materials 2025年 132卷

作者： Xu, Bingquan Pan, Yawen Peng, Jian Shen, Qiang Wang, Chuanbin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan430070 China Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory Chaozhou521000 China Hubei Technology Innovation Center for Advanced Composites Wuhan University of Technology Wuhan430070 China

Refractory metal high-entropy nitride (RHEN) coatings have attracted significant attention for extreme environmental applications due to their outstanding mechanical properties. However, traditional trial-and-error methods for optimizing process parameters are inefficient and costly. To solve this limitation, this study proposes a stacking machine learning framework to predict the hardness and modulus of the RHEN coatings accurately. Seven heterogeneous algorithms, including Random Forest (RF) and XGBoost, were employed to construct base learners coupled with a meta-learner. The stacking model of hardness achieved a satisfactory accuracy (R2 = 0.9011), which is 10 % higher than that of individual models. Additionally, the impact of each feature on the hardness and modulus was clarified using SHAP (Shapley Additive Explanations). The obtained stacking model was validated with experimental results. This result indicates that the stacking machine learning model is capable of enhancing the accuracy of individual models and precisely predicting the hardness and modulus of RHEN coatings. © 2025 Elsevier Ltd

关键词： Brinell Hardness

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[email protected] structured fillers for increasing dielectric constant and suppressing dielectric loss of PVDF-based composite films

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Ceramics International 2022年第16期48卷 22691-22698页

作者： Dajun Hou Jing Zhou Wen Chen Pengchao Zhang Jie Shen Zelang Jian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 PR China

High dielectric constant polymer dielectrics have attracted a great deal of attention in flexible electronics. However, it appears to be a paradox for polymer dielectrics that the enhancement of their dielectric constant often comes along with the increase of dielectric loss. Hence, we reported [email protected] shell structured filler/poly(vinylidene fluoride) (PVDF) composites to overcome this paradox. The hybrid filler with BaTiO 3 (BT) as the core, conductive carbon as the inner shell, and insulating polydopamine (PDA) as the outer shell was synthesized. As a result, the [email protected] @PDA/PVDF composites at the filler content of 11 vol% exhibit an outstanding dielectric performance with a dielectric constant of 45 and a dielectric loss of 0.053 at 10 3 Hz. This phenomenon can be attributed to the increased interfacial polarization induced by the inner carbon shell and the conductive paths blockade caused by the outside PDA shell inside the [email protected] @PDA/PVDF composites. This work reveals that rational design of [email protected] shell structured hybrid fillers maybe a promising way to optimize the overall dielectric performance of the PVDF-based composites.

关键词： [email protected] Dielectric constant Dielectric loss PVDF-based composites

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Failure Behavior and Mechanism of Vat Photopolymerization Additively Manufactured Al_(2)O_(3) Ceramic Lattice Structures

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Additive Manufacturing Frontiers 2024年第4期3卷 166-177页

作者： Keqiang Zhang Xueqin Zhang Qiaoyu Meng Bin Zhang Zhaoliang Qu Rujie He State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing100081China School of Naval Architecture Ocean and Energy Power EngineeringWuhan University of TechnologyWuhan430070China

Vat photopolymerization additive manufacturing produces lightweight load-bearing ceramic lattice structures that have flexibility,time-efficiency,and high precision,compared to conventional ***,understanding the compression behavior and failure mechanism of such structures under loading remains a *** this study,considering the correlation between the strut angle and bearing capacity,body-centered tetragonal(BCT)lattice structures with varying angles are designed based on a body-centered cubic(BCC)*** Al_(2)O_(3) ceramic lattice structures with varying angles are fabricated by vat *** mechanical properties,deformation process,and failure mechanism of the Al_(2)O_(3) ceramic lattice structures are characterized through a combination of ex-and in-situ X-ray computed tomography(X-CT)compression testing and analyzed using a finite element method(FEM)at macro-and *** results demonstrate that as the angle increases,the stress concentration gradually expands from the node to the strut,resulting in an increased loadbearing ***,the failure mode of the Al_(2)O_(3) ceramic lattice structures is identified as diagonal slip shear *** findings provide a greater understanding of ceramic lattice structure failures and design optimization approaches.

关键词： Ceramic lattice structure Vat photopolymerization additive manufacturing Ex-and in-situ X-ray computed tomography(X-CT) Compression behavior Failure mechanism

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The effect of hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios on its pore structure and catalytic performance

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Frontiers of Chemical Science and Engineering 2021年第2期15卷 269-278页

作者： Yuexin Hou Xiaoyun Li Minghui Sun Chaofan Li Syed ul Hasnain Bakhtiar Kunhao Lei Shen Yu Zhao Wang Zhiyi Hu Lihua Chen Bao-Lian Su Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Material for Architectures Wuhan University of TechnologyWuhan 430070China Laboratory of Inorganic Materials Chemistry(CMI) University of NamurB-5000 NamurBelgium Nanostructure Research Centre(NRC) Wuhan University of TechnologyWuhan 430070China Clare Hall University of CambridgeCambridgeCB39ALUK

Hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios(Hier-ZSM-5-x,where x=50,100,150 and 200)were synthesized using an ordered mesoporous carbon-silica composite as hard ***-ZSM-5-x exhibits improved mass transport properties,excellent mechanical and hydrothermal stability,and higher catalytic activity than commercial bulk zeolites in the benzyl alcohol self-etherification *** show that a decrease in the Si/Al ratio in hierarchical single-crystal ZSM-5 zeolites leads to a significant increase in the acidity and the density of micropores,which increases the final catalytic *** effect of porous hierarchy on the diffusion of active sites and the final catalytic activity was also studied by comparing the catalytic conversion after selectively designed poisoned acid *** poisoned Hier-ZSM-5-x shows much higher catalytic conversion than the poisoned commercial ZSM-5 zeolite,which indicates that the numerous intracrystalline mesopores significantly reduce the diffusion path of the reactant,leading to the faster diffusion inside the zeolite to contact with the acid sites in the micropores predominating in ZSM-5 *** study can be extended to develop a series of hierarchical single-crystal zeolites with expected catalytic performance.

关键词： hierarchical zeolites single crystalline interconnected pores improved diffusion performance benzyl alcohol self-etherification reaction

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Zeolite-confined Fe-site Catalysts for the Hydrogenation of CO_(2) to Produce High-value Chemicals

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Chemical Research in Chinese Universities 2024年第1期40卷 78-95页

作者： HAN Xiaoyang XIA Huicong TU Weifeng WEI Yifan XUE Dongping LI Minhan YAN Wenfu ZHANG Jia-Nan HAN Yi-Fan College of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001P.R.China State Key Laboratory of Coking Coal Resources Green Exploitation Zhengzhou UniversityZhengzhou450001P.R.China Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education School of Chemical EngineeringZhengzhou UniversityZhengzhou450001P.R.China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry and College of Chemistry Jilin UniversityChangchun130012P.R.China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai200237P.R.China

Zeolite-confined Fe-site catalysts(ZFCs)have emerged as superior materials for sustainably producing high-value chemicals through CO_(2) hydrogenation,owing to their adaptable framework,customizable composition,and thermal *** excel in activating,adsorbing,and converting CO_(2) with remarkable efficiency and consistency in *** has sparked a surge in research interest in recent *** review delves into the latest advancements in CO_(2) catalytic hydrogenation to olefins,alcohols,aromatics,and other liquid hydrocarbons,examining the synthesis,modification tactics,and the correlation between structure and performance across various ***,it underscores the pivotal factors affecting performance and sheds light on the mechanisms behind selectivity control in the CO_(2) hydrogenation process facilitated by *** conclude,it presents pressing challenges and strategic recommendations to inspire the development of high-performance,durable ZFCs for CO_(2) hydrogenation applications.

关键词： Zeolite-confined Fe-site catalyst CO_(2) hydrogenation Modification strategy High-value chemical

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A review of efficient electrocatalysts for the oxygen evolution reaction at large current density

DeCarbon

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DeCarbon 2024年第3期5卷 24-40页

作者： Youtao Yao Jiahui Lyu Xingchuan Li Cheng Chen Francis Verpoort John Wang Zhenghui Pan Zongkui Kou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070PR China Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya572000PR China Hubei Key Laboratory of Fuel Cell Wuhan University of TechnologyWuhan430070PR China Department of Materials Science and Engineering National University of Singapore117574SingaporeSingapore Institute of Materials Research and Engineering(IMRE) A*STAR(Agency for ScienceTechnology and Research)2 Fusionopolis WaySingapore138634Singapore National University of Singapore(Chongqing)Research Institute Chongqing401123PR China School of Materials Science and Engineering Tongji UniversityShanghai201804PR China

Within the framework of achieving global carbon neutrality,utilizing electrocatalytic water splitting to produce“green hydrogen”holds significant promise as an effective *** strategic development of economic,efficient,and robust anode oxygen evolution reaction(OER)catalysts is one of the imminent bottlenecks for scalable application of electrolyzing water into hydrogen and oxygen,particularly under actual yet harsh operating conditions such as large current density(LCD).In this review,we intend to summarize the advances and challenges in the understanding of the electrocatalytic OER at ***,the impact of LCD on the electron transfer,mass transportation efficiency and catalyst stability is identified and ***,five basic principles for catalyst design,namely the dimension of the materials,surface chemistry,creation of electron transfer pathways,synergy among nano-,micro-,and macroscale structures,and catalyst-support interaction,are systematically ***,the correlation between the synergistic function of the multiscale structures and the catalyst-support interaction is highlighted to direct improvements in catalyst efficiency and durability at the ***,an outlook is prospected to further our understanding of these topics and provide related researchers with potential research areas.

关键词： Oxygen evolution reaction Electrocatalyst Large current density Green hydrogen Water splitting

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