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Alloy/layer double hydroxide interphasic synergy via nano-heterointerfacing for highly reversible CO_(2)redox reaction in Li-CO_(2)batteries

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Nano Research 2024年第6期17卷 5206-5215页

作者： Tianzhen jian wenqing ma.jia.a.g hou jianping ma Xianhong Li Haiyang gao Caixia Xu Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China Kyiv College at Qilu University of Technology Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Laboratory of Crystal materials Shandong UniversityJinan 250100China Shandong Sacred Sun Power Sources Co. Ltd.Qufu 273100China

Li-CO_(2)batteries are among the most intriguing techniques for balancing the carbon cycle,but are challenged by the annoyed thermodynamic barrier of the Li_(2)CO_(3)decomposition ***,we demonstrate the electrocatalytic performances of two-dimensional(2D)CoAl-layer double hydroxide(LDH)nanosheets can be significantly improved by trans-dimensional crosslinking with three-dimensional(3D)multilevel nanoporous(MP)-RuCoAl alloy(MP-RuCoAl alloy⊥CoAl-LDH).The MP-RuCoAl alloy⊥CoAl-LDH with multiscale pore channels and abundant nano-heterointerface is directly prepared by controllable etching Al from a Ru-Co-Al master alloy along with simultaneous partial oxidization of Al and Co *** MP-RuCoAl is composed of various intermetallic compounds and Ru with abundant grain boundaries,and forms numerous heterointerface with 2D CoAl-LDH *** multiscale porous metallic network benefits mass and electron transportation as well as discharge product storage and enables a rich multiphase reaction *** situ differential electrochemical mass spectrometry shows that the mass-to-charge ratio in the charging process is~0.733 which is consistent with the theoretical value of 3/4,stating that the reversible co-decomposition of Li_(2)CO_(3)and C can be achieved with the MP-RuCoAl alloy⊥*** Ketjen black(KB)/MP-RuCoAl⊥CoAl-LDH battery demonstrates a high cyclability for over 2270 h(227 cycles)with a lower voltage gap stabilized at~1.3 V at 200 ma·g^(−1).Our findings here provide useful guidelines for developing high efficiency transition metal based electrocatalysts by coupling with conductive porous substrate for impelling the development of practical Li-CO_(2)battery systems.

关键词： heterojunction interface nanoporous Li-CO_(2)battery dealloying

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农业固废基水凝胶用于水体中重金属吸附的研究进展

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复合材料学报 2024年第7期41卷 3322-3334页

作者：侯文静何彩庆陈文清四川大学建筑与环境学院成都610065

随着经济的快速发展,水中重金属离子污染对人类健康以及生态系统造成威胁。水凝胶以其良好的吸附性能、可再生性和低毒性在处理重金属离子方面具有很大的潜力。本文论述了近年来国内外以农业固体废弃物为原料制备水凝胶(纤维素基水凝胶... 详细信息

随着经济的快速发展,水中重金属离子污染对人类健康以及生态系统造成威胁。水凝胶以其良好的吸附性能、可再生性和低毒性在处理重金属离子方面具有很大的潜力。本文论述了近年来国内外以农业固体废弃物为原料制备水凝胶(纤维素基水凝胶、半纤维素基水凝胶、木质素基水凝胶等)吸附重金属的研究进展。同时,讨论了农业固废基水凝胶的合成,对重金属的吸附效果、吸附机制及分析方法,并列举了工业固废基和其他固废基水凝胶吸附重金属的效果,以期帮助研究者对农业固废基水凝胶吸附重金属的探究有更深刻的理解。

关键词：水凝胶复合材料农业废弃物重金属吸附机制水污染治理

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基于模型剪枝的棉花氮素营养水平诊断

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农业工程学报 2024年第6期40卷 277-284页

作者：陈沛沛戴建国张国顺侯文庆穆正阳石河子大学信息科学与技术学院石河子832003 兵团空间信息工程技术研究中心石河子832003 新疆政法学院信息网络安全学院图木舒克843900

确定棉花的氮素营养水平是实施精准施肥的先决条件和基础。近年来,深度学习逐渐应用于氮素营养水平诊断中,但该方法对高性能设备的依赖性较高,限制了其在资源受限边缘设备上的部署应用。针对这一问题,该研究提出一种基于树莓派4B的棉花... 详细信息

确定棉花的氮素营养水平是实施精准施肥的先决条件和基础。近年来,深度学习逐渐应用于氮素营养水平诊断中,但该方法对高性能设备的依赖性较高,限制了其在资源受限边缘设备上的部署应用。针对这一问题,该研究提出一种基于树莓派4B的棉花氮素营养水平诊断方法。研究采用ResNet101网络构建诊断模型,并通过网络瘦身算法对模型进行剪枝优化,最终将剪枝比例为87%的模型部署在资源受限的树莓派4B上。试验结果表明:当剪枝比例达到87%时,模型精度损失2.55个百分点,同时剪枝后模型参数量、计算量和存储体积分别为4.37 M、1.05 g和16.65 MB,明显提高模型在计算能力有限设备上的推理速度,有助于快速、准确地评估田间棉花的氮素营养状况,从而实现对棉花的精准施肥,提高产量和质量。该研究不仅为实现棉花氮素营养水平的大面积快速诊断提供了技术参考,同时对于作物营养水平诊断的智能终端装备研发具有参考价值。

关键词：棉花氮模型氮素营养水平卷积神经网络模型轻量化边缘智能

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Duplex Interpenetrating-Phase FeNiZn and FeNi_(3)Heterostructure with Low-gibbs Free Energy Interface Coupling for Highly Efficient Overall Water Splitting

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Nano-Micro Letters 2023年第7期15卷 72-89页

作者： Qiuxia Zhou Caixia Xu jiagang hou wenqing ma Tianzhen jian Shishen Yan Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Spintronics InstituteCollaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022People’s Republic of China School of Medical Information and Engineering Southwest Medical UniversityLuzhou 646000People’s Republic of China Kyiv College at Qilu University of Technology Qilu University of TechnologyShandong Academy of SciencesJinan 250353People’s Republic of China State Key Laboratory of Crystal materials Shandong UniversityJinan 250100People’s Republic of China

The sluggish kinetics of both hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)generate the large overpotential in water electrolysis and thus high-cost hydrogen ***,multidimensional nanoporous interpenetrating-phase FeNiZn alloy and FeNi_(3)intermetallic heterostructure is in situ constructed on NiFe foam(FeNiZn/FeNi_(3)@NiFe)by dealloying *** with the eminent synergism among specific constituents and the highly efficient mass transport from integrated porous backbone,FeNiZn/FeNi_(3)@NiFe depicts exceptional bifunctional activities for water splitting with extremely low overpotentials toward OER and HER(η_(1000)=367/245 mV)as well as the robust durability during the 400 h testing in alkaline *** as-built water electrolyzer with FeNiZn/FeNi_(3)@NiFe as both anode and cathode exhibits record-high performances for sustainable hydrogen output in terms of much lower cell voltage of 1.759 and 1.919 V to deliver the current density of 500 and 1000 ma cm^(-2)as well long working *** functional theory calculations disclose that the interface interaction between FeNiZn alloy and FeNi_(3)intermetallic generates the modulated electron structure state and optimized intermediate chemisorption,thus diminishing the energy barriers for hydrogen production in water *** the merits of fine performances,scalable fabrication,and low cost,FeNiZn/FeNi_(3)@NiFe holds prospective application potential as the bifunctional electrocatalyst for water splitting.

关键词： Heterostructure Interface effect Dealloying Bifunctional electrocatalyst Overall water splitting

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Real-time imaging of structure and dynamics of transmembrane biomolecules by FRET-induced single-molecule fluorescence attenuation

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Biophysics Reports 2021年第6期7卷 490-503页

作者： Dongfei ma wenqing hou Chenguang Yang Shuxin Hu Weijing Han Ying Lu Songshan Lake materials Laboratory Beijing National Laboratory for Condensed matter Physics Institute of Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

Tracking the transmembrane topology and conformational dynamics of membrane proteins is key to understand their functions. It is however challenging to monitor position changes of individual proteins in cell membranes with high sensitivity and high resolution. We review on three single-molecule fluorescence imaging methods — SIFA, Lipo FRET and Queen FRET — recently developed in our lab for studying the dynamics of membrane proteins. They can be applied, progressively, to investigate membrane proteins in solid-supported lipid bilayers, artificial liposome membranes and live-cell plasma membranes. The techniques take advantage of the energy transfer from a fluorophore to a cloud of quenchers and are able to extract in real time positions and position changes of a single fluorophorelabeled protein in the direction normal to the membrane surface. The methods have sub-nanometer precision and have proved powerful to investigate biomolecules interacting with bio-membranes.

关键词： Single-molecule fluorescence imaging Dynamics of membrane proteins

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Rational Fabrication of Superhydrophobic Nanocone Surface for Dynamic Water Repellency and Anti-icing Potential

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Journal of Bionic Engineering 2019年第1期16卷 27-37页

作者： Yuehan Xie Haifeng Chen Yizhou Shen Jie Tao Mingming Jin Yu Wu wenqing hou College of materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016China Department of materials Chemistry Qiuzhen SchoolHuzhou UniversityHuzhou 313000China School of materials Science and Engineering Nanyang Technological UniversityNanyang Avenue 50 Singapore 639798Singapore jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech University Nanjing 210016China

In this work,a simple and economic route was presented to fabricate an anti-icing superhydrophobic surface with nanocone structures,which were constructed only by one-step facile method of hydrothermal treatment with zinc acetate on the aluminum *** modifying with fluoroalkylsilane (FAS-17),the nanocone structures with the appropriate size could induce the high superhydrophobicity with the water contact angle reaching 160.2° ± 0.4° and the sliding angle only being 1 ° ± 0.5°.Under the dynamic environments,the impact droplets could rapidly bounced off the surface with the shorter contact time of^1 0.6 ms,and it was mainly attributing to lower capillary adhesive force (water adhesion force of 4.1 μN) induced by the open system of nanocone ***,the superhydrophobic nanocone surfaces were verified to be a promising anti-icing/icephobic materials,on which the water droplets needed to spend the time of ~517 s to complete the entire freezing process at-10 ℃,displaying the increased ~50 times of icing-delay performance comparing with untreated *** if ice finally was formed on the superhydrophobic nanocone surfaces,it could be easily removed away with lower ice adhesion of^45 *** repeatable measurement of ice adhesion strength on the same place of the superhydrophobic surface is still far less than the surface ice adhesion of smooth substrate,exhibiting better stability.

关键词： superhydrophobic nanocone dynamic water repellency anti-icing potential

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In-situ self-templated preparation of porous core-shell Fe_(1-x)S@N,S co-doped carbon architecture for highly efficient oxygen reduction reaction

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Journal of Energy Chemistry 2021年第3期30卷 310-317页

作者： Zhi Li Wei Wang Minjie Zhou Binhong He wenqing Ren Liang Chen Wenyuan Xu Zhaohui hou Yangyang Chen Key Laboratory of Hunan Province for Advanced Carbon-based Functional materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang 414006HunanChina School of materials Science and Engineering Georgia Institute of TechnologyAtlanta 30332GAUnited States

Transition metal compound(TMC)/carbon hybrids,as prospering electrocatalyst,have attracted great attention in the field of oxygen reduction reaction(ORR).Their morphology,structure and composition often play a crucial role in determining the ORR *** this work,we for the first time report the successful fabrication of porous core-shell Fe_(1-x)S@N,S co-doped carbon(Fe_(1-x)S@NSC-t,t represents etching time)by a novel in-situ self-template induced strategy using Fe3O4 nanospheres and pyrrole as sacrificial *** post-polymerization of pyrrole can be accomplished by the Fe^(3+)released through the etching of Fe_(3)O_(4) by HCl ***,the etching time has a significant effect on the morphology,structure,composition a nd ORR performance of Fe_(1-x)S@*** on the cha racterizations,we find Fe_(1-x)S@NSC-24 can realize effective and balanced combination of Fe_(1-x)S and NSC,possessing porous core-shell architecture,optimized structure defect,specific surface area and doped heteroatoms configurations(especially for pyridinic N,graphitic N and Fe-N structure).These features thus lead to outstanding catalytic activity and cycling stability towards *** work provides a good guidance on the design of TMC/carbon-based electrodes with unique stable morphology and optimized structure and composition.

关键词： In-situ self-template Induced polymerization Porous core-shell Fe_(1-x)S@NSC Oxygen reduction reaction

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SARS-CoV-2 ORF10 suppresses the antiviral innate immune response by degrading maVS through mitophagy

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Cellular & Molecular Immunology 2022年第1期19卷 67-78页

作者： Xingyu Li Peili hou wenqing ma Xuefeng Wang Hongmei Wang Zhangping Yu Huasong Chang Tiecheng Wang Song Jin Xue Wang Wenqi Wang Yudong Zhao Yong Zhao Chunqing Xu Xiaomei ma Yuwei gao Hongbin He Ruminant Diseases Research Center College of Life SciencesShandong Normal UniversityJinan 250014People’s Republic of China Changchun Veterinary Research Institute Chinese Academy of Agricultural SciencesChangchun 130122People’s Republic of China

The global coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has caused severe morbidity and mortality in *** is urgent to understand the function of viral ***,the function of open reading frame 10(ORF10),which is uniquely expressed by SARS-CoV-2,remains *** this study,we showed that overexpression of ORF10 markedly suppressed the expression of type I interferon(IFN-I)genes and IFN-stimulated ***,mitochondrial antiviral signaling protein(maVS)was identified as the target via which ORF10 suppresses the IFN-I signaling pathway,and maVS was found to be degraded through the ORF10-induced autophagy ***,overexpression of ORF10 promoted the accumulation of LC3 in mitochondria and induced ***,ORF10 was translocated to mitochondria by interacting with the mitophagy receptor Nip3-like protein X(NIX)and induced mitophagy through its interaction with both NIX and ***,knockdown of NIX expression blocked mitophagy activation,maVS degradation,and IFN-I signaling pathway inhibition by *** with our observations,in the context of SARS-CoV-2 infection,ORF10 inhibited maVS expression and facilitated viral *** brief,our results reveal a novel mechanism by which SARS-CoV-2 inhibits the innate immune response;that is,ORF10 induces mitophagy-mediated maVS degradation by binding to NIX.

关键词： SARS-CoV-2 ORF10 maVS NIX mitophagy

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Investigation of Heterogeneous Ice Nucleation on the Micro-Cubic Structure Superhydrophobic Surface for Enhancing Icing-Delay Performance

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Journal of Renewable materials 2020年第12期8卷 1617-1631页

作者： Senyun Liu Qinglin Liu Xian Yi Yizhou Shen Long guo wenqing hou Haifeng Chen Zhen Wang State Key Laboratory of Aerodynamics China Aerodynamics Research and Development CenterMianyang621000China Key Laboratory of Icing and Anti/De-icing China Aerodynamics Research and Development CenterMianyang621000China Department of materials Chemistry Qiuzhen SchoolHuzhou UniversityHuzhou313000China College of materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing210016China

The aim of this study is to explore the heterogeneous ice nucleation behavior based on controllable micro-cubic array structure surfaces from the statistic *** this end,we firstly constructed a group of micro-cubic array structures on silicon substrates by a selective plasma etching *** grafting low-free-energy substance,the as-constructed micro-cubic array structure surfaces exhibited higher non-wettability with the water contact angle being up to 150°.On this basis,500 cycles of freezing and melting processes were accurately recorded to analyze the instantaneous ice nucleation behavior according to the statistical results of freezing *** a consequence,the statistical freezing temperature of the sample with micro-spacing distance of 40μm is as low as−17.13°*** microstructure configuration(conforming to Cassie-Baxter wetting regime)not only could entrap more air pockets,but also achieved lower solid-liquid contact area,resulting in lower ice nucleation rate(~2–3 orders of magnitude less than that on the flat substrate).Furthermore,the gradually increasing micro-spacing distance to 60μm would induce the transition from CassieBaxter to Wenzel wetting state,leading to higher freezing probability and ice nucleation *** complete understanding on microstructure configuration improving the ice nucleation will lay the foundation stone for the microstructure design of ice-repellent materials.

关键词： Microstructure configuration superhydrophobic ice nucleation antiicing/icephobic material

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Long-term storage of lipid-like nanoparticles for mRNA delivery

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Bioactive materials 2020年第2期5卷 358-363页

作者： Pengxuan Zhao Xucheng hou Jingyue Yan Shi Du Yonger Xue wenqing Li guangya Xiang Yizhou Dong Division of Pharmaceutics&Pharmacology College of PharmacyThe Ohio State UniversityColumbusOH43210United States School of Pharmacy Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Department of Biomedical Engineering The Ohio State UniversityColumbusOH43210United States The Center for Clinical and Translational Science The Ohio State UniversityColumbusOH43210United States The Comprehensive Cancer Center The Ohio State UniversityColumbusOH43210United States Dorothy M.Davis Heart&Lung Research Institute The Ohio State UniversityColumbusOH43210United States Department of Radiation Oncology The Ohio State UniversityColumbusOH43210United States

Lipid-like nanoparticles(LLNs)have been extensively explored for messenger RNA(mRNA)delivery in various biomedical ***,the long-term storage of these nanoparticles is still a challenge for their clinical *** this study,we investigated a series of conditions for the long-term storage of LLNs with encapsulation of *** evaluated the stability of LLNs with different concentrations of cryoprotectants(sucrose,trehalose or mannitol)under the conditions of freezing or lyophilization *** in vitro and in vivo mRNA delivery studies,we identified the optimal storage condition,and found that the addition with 5%(w/v)sucrose or trehalose to LLNs could remain their mRNA delivery efficiency for at least three months in the liquid nitrogen storage condition.

关键词： Lipid-like nanoparticles mRNA delivery Long-term storage

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