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Electromagnetic bilayer composite film: Cocoa-tree-like FL and spiky-ball-like CN structures for superior electromagnetic shielding, thermal management, and strain sensing performance

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chemical engineering Journal 2025年 512卷

作者： Liu, Gengmei Li, Jinbao Yin, Dingwen Xiu, Huijuan Wang, Simin Jiang, Xuanchen Qin, Yuxin Hua, Feiguo Jia, Yufei Shen, Mengxia College of Bioresources Chemical & Materials Engineering Shaanxi University of Science & Technology Shaanxi Xi'an710021 China National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development Shaanxi Xi'an710021 China Zhejiang Shunpu New Material Technology Co. Ltd Zhejiang Quzhou324400 China Zhejiang Jinjiahao Green Nanomaterial Co. Ltd. Zhejiang Quzhou324404 China

With the rapid development of flexible and integrated electronics, there is an urgent need for electromagnetic shielding materials that meet the requirements of thinness, high electromagnetic interference shielding effectiveness (EMI SE), and low reflection loss (SER). This study designs an FL/CN composite film with an electric–magnetic bilayer multiscale structure, constructing an "absorption-reflection–absorption" electromagnetic wave dissipation path. First, spiky-ball-like Ni nanoparticles (NiNPs) were grown on cellulose nanofibers (CNF) via in situ reduction to form a magnetic layer (CN). This layer generates hysteresis and resonance losses while leveraging its multi-wall effect to induce polarization, multiple reflections, and scattering losses. Second, a multi-dimensional nanostructured FL conductive layer was fabricated using a mechanical blending method. The conductive network of silver nanowires (AgNWs) provides conductive loss, and the cocoa-tree-like SiO2@PDA structure forms a "resistor–capacitor" circuit to generate polarization loss, further attenuating and reflecting electromagnetic waves. Finally, the abundant heterogeneous interfaces in the macroscopic bilayer structure enhance electromagnetic wave dissipation. As a result, the composite film achieves an exceptional EMI SE of 85.59 dB with a low SER of only 7.73 dB, alongside a tensile strength of 23.67 MPa. Additionally, the film exhibits excellent flexibility (bending radius © 2025 Elsevier B.V.

关键词： Electromagnetic shielding

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Important mesoscale phenomena in gas phase fluidized bed ethylene polymerization

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Particuology 2020年第1期18卷 116-143页

作者： Jingyuan Sun Haotong Wang Sihang Tian Xiaoqiang Fan Qiang Shi Ying Liu Xiaobo Hu Yao Yang Jingdai Wang Yongrong Yang Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology Hangzhou 310027China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310027China State Key Laboratory of Chemical Engineering Zhejiang UniversityHangzhou 310027China

Gas phase fluidized bed processes have been widely applied to polyethylene *** these processes,the flow,mass transfer,and reaction rate on the microscale and macroscale are strongly coupled because of the multiphase and multiscale nature of the fluidization *** mesoscale phenomena is therefore essential to the quantitative translation of the knowledge obtained from the microscale to the *** paper reviews the development of ethylene polymerization gas phase processes while focussing on studies regarding mesoscale *** include experimental characterizations,mathematical modelling and control *** and future developments in this field are also discussed.

关键词： Gas phase fluidized bed process Mesoscale phenomena Cloudy zone Experimental characterization Mathematical modelling Control strategy

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Online Self-distillation and Self-modeling for 3D Brain Tumor Segmentation

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IEEE Journal of Biomedical and Health Informatics 2025年 PP卷 PP页

作者： Pang, Yan Li, Yunhao Huang, Teng Liang, Jiaming Wang, Zhen Dong, Changyu Kuang, Dongyang Hu, Ying Chen, Hao Lei, Tim Wang, Qiong The Guangdong Provincial Key Laboratory of Computer Vision and Virtual Reality Technology Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen China The School of Artificial Intelligence Guangzhou University China The Zhejiang Lab Hangzhou China Sun Yat-sen University China The Department of Computer Science and Engineering The Department of Chemical and Biological Engineering Hong Kong University of Science and Technology China The Department of Electrical Engineering University of Colorado Denver United States

In the specialized domain of brain tumor segmentation, supervised segmentation approaches are hindered by the limited availability of high-quality labeled data, a condition arising from data privacy concerns, significant costs, and ethical issues. In response to this challenge, this paper presents a training framework that adeptly integrates a plug-and-play component, MOD, into current supervised learning models, boosting their efficacy in scenarios with limited data. The MOD consists of an Online Tokenizer and a Dense Predictor, which employs self-distillation and self-modeling on masked patches, promoting swift convergence and efficient representation learning. During the inference phase, the plug-and-play MOD component is excluded, preserving the computational efficiency of the original model without incurring extra processing costs. We substantiated the value of our approach through experiments on leading 3D brain tumor segmentation baselines. Remarkably, models augmented with the MOD consistently showcased superior results, achieving elevated Dice coefficients and HD95 scores on two datasets: BraTS 2021 and MSD 2019 Task-01 Brain Tumor. Code: https://***/aigzhusmart/MOD © 2013 IEEE.

关键词： Self-supervised learning

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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin Key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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PAMPHLET:PAM Prediction HomoLogous-Enhancement Toolkit for precise PAM prediction in CRISPR-Cas systems

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Journal of Genetics and Genomics 2025年第2期52卷 258-268页

作者： Chen Qi Xuechun Shen Baitao Li Chuan Liu Lei Huang Hongxia Lan Donglong Chen Yuan Jiang Dan Wang Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science BNU-HKBU United International CollegeZhuhaiGuangdong 519087China School of Biology and Biological Engineering South China University of TechnologyGuangzhouGuangdong 510006China BGI Research HangzhouZhejiang 310030China BGI Research ShenzhenGuangdong 518083China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Laboratory of Integrative Biomedicine Department of BiologyFaculty of ScienceUniversity of CopenhagenCopenhagenDenmark Qingdao-Europe Advanced Institute for Life Sciences BGI ResearchQingdaoShandong 266555China School of Life Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhouZhejiang 310024China STOmics Americas Ltd. 2904 Orchard PkwySan Jose CA 95134USA

CRISPR-Cas technology has revolutionized our ability to understand and engineer organisms,evolving from a singular Cas9 model to a diverse CRISPR toolbox.A critical bottleneck in developing new Cas proteins is identifying protospacer adjacent motif(PAM)*** to the limitations of experimental methods,bioinformatics approaches have become ***,existing PAM prediction programs are limited by the small number of spacers in CRISPR-Cas systems,resulting in low *** address this,we develop PAMPHLET,a pipeline that uses homology searches to identify additional spacers,significantly increasing the number of spacers up to *** is validated on 20 CRISPR-Cas systems and successfully predicts PAM sequences for 18 *** predictions are further validated using the DocMF platform,which characterizes protein-DNA recognition patterns via next-generation *** high consistency between PAMPHLET predictions and DocMF results for Cas proteins demonstrates the potential of PAMPHLET to enhance PAM sequence prediction accuracy,expedite the discovery process,and accelerate the development of CRISPR tools.

关键词： CRISPR-Cas Protospacer adjacentmotif Genome editing PAM prediction Computational framework

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Efficient, continuous oxidation of durene to pyromellitic dianhydride mediated by a V-Ti-P ternary catalyst: The remarkable doping effect

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Chinese Journal of chemical engineering 2023年第3期55卷 156-164页

作者： Da Ke Minjia Wang Jiancheng Ruan Xinzhi Chen Shaodong Zhou College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyZhejiang UniversityHangzhou 310027China Institute of Zhejiang University±Quzhou Quzhou 324000China

Continuous preparation of pyromellitic dianhydride(PMDA) from durene has been studied using a fixedbed reactor. The reaction was performed using a phosphorus-vanadium-titanium ternary *** high selectivity and yield of PMDA was obtained. The in-situ characterization was combined with theoretical calculation to reveal the reaction mechanisms, and the remarkable doping effect was discussed.

关键词： Continuous oxidation Anhydride CAH activation V-Ti-P ternary catalyst

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Effect of particle size of single-crystalline hierarchical ZSM-5 on its surface mass transfer in n-heptane catalytic cracking

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Chinese Journal of chemical engineering 2023年第11期63卷 148-157页

作者： Xiaoxue Zhang Shuman Xu Jing Hao Xiaojin Xie Fengqiu Chen Dangguo Cheng College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyZhejiang UniversityHangzhou 310027China Institute of Zhejiang University-Quzhou Quzhou 324000China

Single-crystalline hierarchical ZSM-5 zeolites with different particle sizes(namely 100,140,and 200 nm)were successfully prepared by adjusting the amount of tetrapropylammonium hydroxide(TPAOH),and investigated in n-heptane catalytic cracking *** measurements by zero-length column(ZLC)method showed that the apparent diffusivities of n-heptane decreased with the reduction of particle size,indicating the existence of surface ***,with the decrease of particle size,the additional diffusion path length increased,which meant the influence of surface barriers became more *** the change of surface barriers,the intracrystalline diffusion still dominated the overall *** performance showed that the zeolite with smaller particle size had better stability.

关键词： Single-crystalline Hierarchical ZSM-5 Particle size Surface barriers n-Heptane catalytic cracking

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Lithium nitrate regulated carbonate electrolytes for practical Li-metal batteries: Mechanisms, principles and strategies

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Journal of Energy Chemistry 2023年第2期77卷 581-600,I0015页

作者： Kun Wang Wenbing Ni Liguang Wang Lu Gan Jing Zhao Zhengwei Wan Wei Jiang Waqar Ahmad Miaomiao Tian Min Ling Jun Chen Chengdu Liang Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027ZhejiangChina Institute of Zhejiang University-Quzhou Quzhou 324000ZhejiangChina

Li-metal batteries(LMBs)regain research prominence owing to the ever-increasing high-energy *** available carbonate electrolytes exhibit unfavourable parasitic reactions with Limetal anode(LMA),leading to the formation of unstable solid electrolyte interphase(SEI)and the breed of Li dendrites/dead ***,lithium nitrate(LiNO_(3)),an excellent film-forming additive,proves crucial to construct a robust Li_(3)N/Li_(2)O/Li_(x)NO_(y)-rich SEI after combining with ether-based ***,the given challenge leads to natural ideas which suggest the incorporation of LiNO_(3) into commercial carbonate for practical ***,LiNO_(3) demonstrates limited solubility(~800 ppm)in commercial carbonate ***,developing stable SEI and dendrite-free LMA with the incorporation of LiNO_(3) into carbonate electrolytes is an efficacious strategy to realize robust LMBs via a scalable and cost-effective ***,this review unravels the grievances between LMA,LiNO_(3)and carbonate electrolytes,and enables a comprehensive analysis of LMA stabilizing mechanism with LiNO_(3),dissolution principle of LiNO_(3) in carbonate electrolytes,and LiNO_(3) introduction *** review converges attention on a point that the LiNO_(3)-introduction into commercial carbonate electrolytes is an imperious choice to realize practical LMBs with commercial 4 V layered cathode.

关键词： Li-metal battery Carbonate electrolyte Lithium nitrate Stabilization mechanism Dissolution principle Introduction strategy

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Fabrication of ZIF-8 membranes on dual-layer ZnO-PES/PES organic hollow fibers by in-situ crystallization

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Chinese Journal of chemical engineering 2023年第3期55卷 101-110页

作者： Zhengchi Yin Xiaoke Wu Yanwei Yang Huayu Zhang Wangtao Li Ruimin Zhu Qiancheng Zheng Zhengbao Wang Key Laboratory of Biomass Chemical Engineering of Ministry of Education ERC of Membrane and Water Treatment(MOE)Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyCollege of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China

Compared to inorganic supports, polymeric supports can offer additional benefits, e.g., easier processing and cheaper. However, the organic surface has weak adhesion to the zeolitic imidazolate frameworks(ZIFs) membrane layer, which usually requires complex surface modification or seeding. Herein, we demonstrate that a dual-layer asymmetric polymer support prepared by a simple spinning process is a good candidate for the preparation of ZIF-8 membrane. The inner layer of the support is an organic hollow fiber(PES) with finger-like pores, and the outer layer is a ZnO-PES composite layer with finger-like pores also. The ZnO-PES composite layer is expected to contain uniform ZnO crystals in the polymer matrix, i.e., the ZnO particles in the skin layer of the support are not easy to fall off. Under the induction of ZnO particles in the outer layers, continuous ZIF-8 membranes can be prepared by single in-situ crystallization, showing good adhesion to the supports. The obtained ZIF-8 membranes show a H_(2) permeance of 8.7 × 10^(-8)mol·m^(-2)·s^(-1)·Pa^(-1) with a H_(2)/N_(2) ideal separation selectivity of 18.0. The design and preparation of this dual-layer polymer support is expected to promote the large-scale application of MOF membranes on polymer supports.

关键词： Dual-layer PES hollow fiber In-situ crystallization ZIF-8 membrane Gas separation ZnO

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Acidity Modification of ZSM-5 for Methane Conversion in Co-feeding Method with MTA Reaction

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chemical Research in Chinese Universities 2022年第4期38卷 1012-1017页

作者： YU Yue XI Zhixiang ZHOU Bingjie JIANG Binbo LIAO Zuwei YANG Yao WANG Jingdai HUANG Zhengliang SUN Jingyuan YANG Yongrong Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027P.R.China

Acidity plays a vital role in methane conversion by co-feeding method,which is one of the best strategies to improve the utilization and gentle the reaction conditions of *** this work,Zn,Ni,Mo,La,Ga,Fe and Co-impregnated ZSM-5 zeolites have been prepared with the same substitutions to variate the acidities and tested in co-aromatization of methanol with *** is demonstrated that the new medium-strong acid sites formed by metal and strong acid sites are the key role to activate methane in ***-modified ZSM-5 catalyst is preferred to exhibit the best methane conversion of 12%,whose aromatic selectivity increases from 27.2%to 52.2%compared with that of ***,the addition of methane further improves the production of high-valued aromatics compared with methanol to aromatics(MTA)reaction.

关键词： Methane Methanol to aromatics(MTA) Co-reaction Acid site

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