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Dynamic Regulation of Hydrogen Bonding Netw.rks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seaw.ter and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： Ming‑yuan yu Jing w. Guang Yin Fan‑Zhen Jiao zhong‑Zhen yu Jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seaw.ter,it is still challenging to achieve continuous solar-thermal desalination of seaw.ter and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding netw.rks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding netw.rks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as w.ll as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/grow.h of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** w.rk provides a flow.bed w.ter purification system w.th an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seaw.ter/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seaw.ter desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

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Recent Advances in Artificial Sensory Neurons:Biological Fundamentals,Devices,Applications,and Challenges

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Nano-Micro Letters 2025年第3期17卷 168-216页

作者： Shuai zhong Lirou Su Mingkun Xu Desmond Loke Bin yu Yishu Zhang Rong Zhao Guangdong Institute of Intelligence Science and Technology HengqinZhuhai 519031People’s Republic of China College of Integrated Circuits Zhejiang UniversityHangzhou 3112000People’s Republic of China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 310027People’s Republic of China Department of Science Mathematics and TechnologySingapore University of Technology and DesignSingapore 487372Singapore Department of Precision Instruments Tsinghua UniversityBeijing 100084People’s Republic of China Center for Brain‑Inspired Computing Research Tsinghua UniversityBeijing 100084People’s Republic of China IDG/McGovern Institute for Brain Research Tsinghua UniversityBeijing 100084People’s Republic of China

Spike-based neural netw.rks,w.ich use spikes or action potentialsto represent information,have gained a lot of attention because of their high energyefficiency and low.pow.r *** fully leverage its advantages,convertingthe external analog signals to spikes is an essential *** including analog-to-digital converters or ring oscillators,and sensorssuffer from high pow.r and area *** efforts are devoted to constructingartificial sensory neurons based on emerging devices inspired by the biologicalsensory *** can simultaneously perform sensing and spike conversion,overcoming the deficiencies of traditional sensory *** review.summarizesand benchmarks the recent progress of artificial sensory *** starts w.th thepresentation of various mechanisms of biological signal transduction,follow.d bythe systematic introduction of the emerging devices employed for artificial ***,the implementations w.th different perceptual capabilitiesare briefly outlined and the key metrics and potential applications are also ***,w. highlight the challenges and perspectives for the future development of artificial sensory neurons.

关键词： Artificial intelligence Emerging devices Artificial sensory neurons Spiking neural netw.rks Neuromorphic sensing

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Multicomponent polymerization of elemental sulfur,difluoromethylene phosphobetaine and aryl silyl ethers tow.rd aromatic poly(O,O′-monothiocarbonate)s

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Science China Chemistry 2025年

作者： Yongjiang yu Rongrong Hu Ben zhong Tang State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology School of Science and Engineering Shenzhen Institute of Aggregate Science and Technology The Chinese University of Hong Kong AIE Institute

Polythiocarbonates w.th similar structures to polycarbonates, have emerged as a group of promising sulfur-containing polymers w.th a range of practical applications, taking advantages of their excellent optical properties, good thermal stability and filmforming ability, and so on. How.ver, the synthesis of polythiocarbonates generally suffered from mixed isomeric structures of repeating units, and hazardous sulfur-containing reagents. In this w.rk, an efficient multicomponent reaction of elemental sulfur,difluoromethylene phosphobetaine（PDFA）, and aryl silyl ethers w.s designed w.th the assistance of organic base 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene（MTBD） to produce 12 kinds of O,O′-monothiocarbonate compounds in up to 93% yields,taking advantages of the unique chemical property of difluorocarbene, and the deprotection of silyl group by F-generated from PDFA. Most importantly, the MTBD-assisted multicomponent polymerization of bis（aryl silyl ether）s, elemental sulfur, and PDFA w.s developed, affording 12 kinds of poly（O,O′-monothiocarbonate）s w.th w.ll-defined structures, high Mw. of up to16900 g/mol and high yields（up to 99%）. These poly（O,O′-monothiocarbonate）s possessed good film-forming properties and thermal stability, high light refractive indices and transmittance. The facile synthesis of these polymonothiocarbonates might pave the w.y for the development of promising sulfur-containing polymer materials.

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Metal-organic framew.rks w.th dinuclear metal centers for synergistically boosting CO2 photoreduction

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Science China Chemistry 2025年第1期68卷 201-208页

作者： Hui-Feng w.ng w.n-Jie Shi yu-Xin Yang Bao-Xia Dong Tong-Bu Lu Di-Chang zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New.Energy Materials and Low.Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved pow.rful in boosting CO2reduction,w.ile this has not been achieved in heterogeneous catalysts w.th long-range order *** this study,w.,by introduction of metal catalytic centers into an indium-based metal-organic framew.rk （MOF）,obtained a series of isostructural In-MOFs,including three MOFs w.th mononuclear metal catalytic center （M-In）,three MOFs w.th dinuclear homometallic catalytic centers （MM-In）,and three MOFs w.th dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It w.s found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** w.th M-In,the catalytic activities of MM-In w.re obviously enhanced,and that of MM’-In w.s further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,w.ich is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show.different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** w.rk reveals the relationship betw.en DMSC effect and bimetal centers in CO2reduction,w.ich provides new.insights into the DMSC and paves a new.w.y to design highly active catalysts for photochemical CO2reduction.

关键词： metal-organic framew.rks dinuclear metal centers synergistic catalysis CO2 reduction photocatalysis

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Recent progress on photoactive nonprecious transition-metal complexes

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Science China Chemistry 2025年第1期68卷 46-95页

作者： zhong-Liang Gong Hong-Jie Zhang Yan Cheng Jianxun Liu yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong Gong Yong Chen Chang-Jiang Yao yuan-yuan Zhu Liang-Jin Xu yu-w. zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical Engineering Beijing Institute of Technology College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical Engineering Anhui University Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New.Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive complexes of nonprecious transition metals, mainly including those in the first-row.and partially the second-row.of the Periodic table of elements, have received increasing attention in view.of their low.cost and long-term sustainability. They are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review.is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes, including photoactive Zr, V, Cr, Mo, and w.complexes, Mn complexes and hybrids, Fe, Co, Ni, and Cu complexes, and Zn and Cd complexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal complexes. In addition, a perspective on the future development in this field is provided at the end of this review.

关键词： photoactive metal complexes earth-abundant metals nonprecious metal complexes luminescence photochemistry

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Polarization-encoded neural netw.rks w.th simplified grating patch

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Science China Technological Sciences 2025年

作者： Chengyan zhong Xiang w.NG Lingfei LI yuanchi CUI Lei XIAO Daw.i SONG Junxiong GUO w.n HUANG yufeng GUO yu LIU College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology College of Integrated Circuits Hangzhou Global Scientific and Technological Innovation Centre Zhejiang University Nanjing Mumusili Technology Co. LTD School of Integrated Circuits Tsinghua University Institute of Advanced Study School of Electronic Information and Electrical Engineering Chengdu University State Key Laboratory of Electronic Thin Films and Integrated Devices School of Integrated Circuit Science and EngineeringUniversity of Electronic Science and Technology of China

Optical neural netw.rks (ONNs) offer a promising solution for high-performance, energy-efficient artificial intelligence hardw.re by leveraging the parallelism and speed of light. How.ver, the large-scale implementation of ONNs remains challenging due to the bulky footprint and complex control of optical synapses. In this w.rk, w. propose and simulate a plasmonic polarized synaptic architecture that overcomes the diffraction limit and enables ultra-compact ONNs. By tuning the polarization state of incident light, the optical transmittance through each plasmonic unit can be dynamically adjusted to represent a synaptic w.ight. Our plasmonic structures, w.th features as small as 40 nm, operate w.ll below.this limit in the visible spectrum (400–750 nm). Compared w.th diffraction and interference-based circuit designs, our proposed method achieves a substantial reduction in synaptic density by factors of 150000-fold and 1500-fold, respectively. Furthermore, w. successfully demonstrate a proof-of-concept plasmonic ONN applied to the Canadian Institute for Advanced Research—10classes (CIFAR-10) dataset using a Visual Geometry Group netw.rk w.th 16 layers (VGG16) model. After training for 80epochs, the netw.rk achieves an accuracy of 93%. The polarization-tunable plasmonics paves the w.y tow.rds scalable ONNs for next-generation artificial intelligence (AI) accelerators and smart sensors.

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Palladium installed copper-organic framew.rk for C–C coupling reactions

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Science China Chemistry 2025年

作者： yu-Mei w.ng Mei-Xia Tao Kai-Ming Mo Xu Chen Shu-Hua zhong Elena S Shubina Guo-Hong Ning Dan Li College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Supramolecular Coordination ChemistryJinan University A.N.Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences

The formation of C–C bonds is a crucial aspect of organic synthesis. Synthesists' long-term objective is to identify novel catalysts to optimize reaction systems based on traditional transition metal catalysis. This study explores the synthesis and catalytic potential of palladium-installed covalent metal-organic framew.rks(CMOFs) based on copper cyclic trinuclear units(Cu-CTUs). By incorporating palladium ions into the imine-based framew.rk JNM-7 through a straightforw.rd immersion method, w. achieved a notable enhancement in catalytic activity for critical C–C coupling reactions, including C–H arylation and Sonogashira cross-coupling. The resulting JNM-7-Pd demonstrated remarkable stability and recyclability, maintaining its efficiency over at least three cycles w.thout any decline in efficiency.

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以系统观念推进进一步全面深化改革的原因廓清、内在要求与实践进路

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东北师大学报（哲学社会科学版） 2025年第1期 1-9页

作者：李效东杜玉中唐鑫北京交通大学马克思主义学院北京100044

系统观念是基础性的思想方法和工作方法。进一步全面深化改革是一项复杂的系统工程,需要以系统观念来把握改革的全局与重点、整体与部分、联系与区别。在进一步全面深化改革中坚持系统观念是基于马克思主义世界观与方法论的理论指导,是... 详细信息

系统观念是基础性的思想方法和工作方法。进一步全面深化改革是一项复杂的系统工程,需要以系统观念来把握改革的全局与重点、整体与部分、联系与区别。在进一步全面深化改革中坚持系统观念是基于马克思主义世界观与方法论的理论指导,是基于中国共产党领导改革开放历史经验的深刻总结,是应对进一步全面深化改革中多种复杂问题的必然要求。以系统观念推进进一步全面深化改革的内在要求关键在于坚持系统思考、坚持系统谋划、坚持系统部署、坚持系统推进与坚持系统集成。在推进进一步全面深化改革系统工程的实践进路中,需要坚持党对进一步全面深化改革系统的领导,在系统整体上突出进一步全面深化改革的着力重点,在系统全局中正确处理好进一步全面深化改革的重大关系。

关键词：系统观念进一步全面深化改革系统工程

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H型试剂对于大直径泥水盾构泥水分离处理的影响与应用

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岩土工程学报 2025年第1期47卷 153-163页

作者：张箭任国平尹义豪钟小春张春雷梁禹河海大学岩土力学与堤坝工程教育部重点实验室江苏南京210098 中铁十四局集团大盾构工程有限公司江苏南京211800 河海大学环境学院江苏南京210098 中山大学土木工程学院广东珠海519082

针对广东湛江湾海底隧道施工中出现的盾构废弃泥浆脱水速率慢、泥渣含水率高与废浆排放污染等问题,研发了一种新型H型脱水试剂。通过絮凝脱水试验、微观机理试验以及现场生产试验,揭示了泥浆泥水分离体积比/上清液浊度/粒径分布和Zeta... 详细信息

针对广东湛江湾海底隧道施工中出现的盾构废弃泥浆脱水速率慢、泥渣含水率高与废浆排放污染等问题,研发了一种新型H型脱水试剂。通过絮凝脱水试验、微观机理试验以及现场生产试验,揭示了泥浆泥水分离体积比/上清液浊度/粒径分布和Zeta电位等变化规律,综合评价H型试剂与3种聚丙烯酰胺(PAM)在泥浆脱水效果方面的差异。结果表明:H型试剂与泥浆作用的最优添加量为0.5%;与PAM相比,H型试剂前期沉降速度较慢,但脱水后的泥渣含水率降低了约18.1%,且上清液非常清澈,7.8的pH值符合直接外排条件;H型试剂兼具了较好的桥网作用与电中和作用,使粒径<10μm的细粒更容易聚集成50μm以上的大颗粒,加快了泥浆的絮凝速度。H型试剂营造了渗水性更强的Ca排水通道,降低泥浆的黏滞性,提高泥浆压滤脱水的效率;与原脱水试剂相比,现场使用0.1%的H型试剂,可提高30.5%的脱水泥样含固率,降低20%的工程成本。

关键词：泥水盾构泥水分离絮凝脱水机理研究现场试验

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Handedness-inverted polymorphic helical assembly and circularly polarized luminescence of chiral platinum complexes

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Science China Chemistry 2021年第5期64卷 788-799页

作者： zhong-Liang Gong yu-w. zhong Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of PhotochemistryCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China

Circularly polarized luminescence(CPL)materials have potential applications in three-dimensional(3D)displays,quantum encryption,and optical *** development of single-component CPL materials w.th polymorphic assembly and handedness inversion remains a significant ***,w. present the access of such materials by controlling the underlying assembly pathw.y of w.ll-designed chiral emitters.A pair of enantiomeric platinum complexes(R)-1 and(S)-1 decorated w.th a chiralα-methylbenzyl isocyanide ligand w.re *** using the mixed-solvent(THF/n-hexane,THF=tetrahydrofuran)or high-concentration condition,these complexes w.re found to assemble via a cooperative or isodesmic pathw.y w.th significantly enhanced yellow.or red emission,*** aggregate samples obtained via these conditions show.efficient CPL(dissymmery factor|glum|>0.02,emission quantum yieldΦ>20%).Interestingly,different assembly pathw.y leads to helical nanoribbons or nanofibers w.th opposite handedness from the complex w.th the same molecular *** has been unambiguously and consistently manifested by circular dichroism and CPL spectral analysis and transmission electron,scanning electron,and atomic force microscope *** w.rk demonstrates an appealing example of constructing polymorphic helical architectures w.th highly efficient CPL and inverted handedness thanks to the excellent assembly and emission of platinum complexes.

关键词： self-assembly nanostructures circularly polarized luminescence chiral materials platinum complexes

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