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Post-tunable salt gel electrolytes toward flexible supercapacitor switches

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Journal of Energy Chemistry 2025年第1期100卷 114-124页

作者： Hui Wang Shuang Chen Xuming Liu Qin Zhang Xin Liu Polymeric and soft Materials laboratory School of Chemistry and Life Science and Advanced Institute of Materials ScienceChangchun University of TechnologyChangchun 130012JilinChina Polymeric and soft Materials laboratory School of Chemical Engineering and Advanced Institute of Materials ScienceChangchun University of TechnologyChangchun 130012JilinChina

Convertible hydrogel supercapacitors have emerged as promising energy storage devices in switches,diodes,and ***,inherent weaknesses in ionic conductivity,mechanical properties,and water retention of hydrogel electrolytes seriously hinder their *** by the hardness conversion of sea cucumber skin,a conductivity and mechanics dual-tunable salt gel electrolyte is successfully *** salt gel presents a reversible switching of conductors-insulators and a mechanical regulation between softness and hardness via the dissolution-crystallization transition of sodium acetate trihydrate(SAT).Meanwhile,the salt gels spontaneously grow a layer of“armor”through saturated phase-change salt crystals effectively reducing water evaporation of hydrogel ***,this phase-change soft-rigid conversion strategy will expand the capabilities of gel-based flexible supercapacitors(area capacitance:258.6 mF cm^(-2)),and the capacitance retention rate could still reach 86.9%after 3000 cycles at high ***,the salt gel supercapacitor is potentially used in over-heat alarm *** is anticipated that the strategy of conductivity and mechanics of dual-tunable salt gel would provide a new perspective on the development of energy storage devices,wearable electronics,and flexible robots.

关键词： Supercapacitors Salt gels Reversible phase transition Post-tuning Conductivity switching

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Novel photoresponsive dinuclear nickel catalysts for ethylene (co)polymerization

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Science China Chemistry 2025年第2期68卷 714-722页

作者： Chenlong Nan Tong Pang Jiaxing Zhao Lijia Fan Chen Zou Xin-Qi Hao Mao-Ping Song Jun-Fang Gong Changle Chen Hui Jiang College of Chemistry Pingyuan LaboratoryZhengzhou UniversityZhengzhou 450001China CAS Key laboratory of soft Matter Chemistry Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

Compared with the conventional strategies of electronic and/or steric perturbation,catalytic olefin polymerization modulated by light irradiation or metal-metal cooperativity effect is a fascinating challenge that attracts considerable attention in the academic *** this context,we design a strategy that could employ both effects to influence the polymerization *** dinuclear salicylaldimine andα-imino-ketone nickel complexes bearing a stiff-stilbene bridge were prepared,which could transfer between(E)-isomers and(Z)-isomers under ultraviolet *** isomerization can tune the electronic,steric and metal-metal cooperativity effects of the nickel *** this way,the catalytic activity,as well as polymer microstructures including molecular weight and branching density can be modulated in ethylene polymerization and copolymerization *** strategy is generally applicable to other olefin polymerization catalytic systems and other types of transition metal mediated catalysis.

关键词： photoresponsive dinuclear catalyst nickel(II) polar monomer olefin copolymerization

In-situ liquid-phase transmission electron microscopy for two-dimensional energy materials

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Science China Chemistry 2025年第2期68卷 414-429页

作者： Junyu Zhang Liangping Xiao Mi Lu School of Materials Science and Engineering Xiamen University of TechnologyXiamen 361024China Instrumental Analysis Center Laboratory and Equipment Management DepartmentHuaqiao UniversityXiamen 361021China Department of Physics Research Institute for Biomimetics and Soft MatterFujian Provincial Key Laboratory for Soft Functional MaterialsJiujiang Research InstituteXiamen UniversityXiamen 361005China

Two-dimensional(2D)materials are vital for the development of advanced materials in the next-generation energy conversion and storage ***-situ liquid-phase transmission electron microscopy(LP-TEM)acts as a powerful tool for characterizing the dynamic evolution of materials under work condition in real time and in ***,this mini-review highlights the considerable advances in the utilization of in-situ LP-TEM for studying the physical and chemical process dynamics of 2D materials,such as their nucleation growth and phase *** electrocatalytic water splitting reactions and CO_(2) electroreduction of 2D energy materials are *** underlying electrochemical reaction mechanisms of the 2D electrode materials in rechargeable batteries are discussed and ***,the current challenges and perspectives for future research are *** min-review aims to inspire and stimulate further innovation and encourage the broader adoption of LP-TEM in exploring the fascinating dynamics of 2D energy materials.

关键词： two-dimensional(2D)materials liquid-phase transmission electron microscopy electrochemical reaction electrode materials

Fe3+ ion quantification with reusable bioinspired nanopores

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Chinese Chemical Letters 2025年第2期36卷 207-212页

作者： Yanqiong Wang Yaqi Hou Fengwei Huo Xu Hou Institute of Flexible electronics (IFE Future Technologies) Xiang’an Campus Xiamen University State Key laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Institute of Artificial Intelligence Xiamen University Department of Physics Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Materials Research Jiujiang Research Institute College of Physical Science and Technology Xiamen University Innovation laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Engineering Research Center of Electrochemical Technologies of Ministry of Education Xiamen University

Excessive Fe3+ion concentrations in wastewater pose a long-standing threat to human *** low-cost,high-efficiency quantification of Fe3+ion concentration in unknown solutions can guide environmental management decisions and optimize water treatment *** this study,by leveraging the rapid,real-time detection capabilities of nanopores and the specific chemical binding affinity of tannic acid to Fe3+,a linear relationship between the ion current and Fe3+ion concentration was *** this linear relationship,quantification of Fe3+ion concentration in unknown solutions was ***,ethylenediaminetetraacetic acid disodium salt was employed to displace Fe3+from the nanopores,allowing them to be restored to their initial conditions and reused for Fe3+ion *** reusable bioinspired nanopores remain functional over 330 days of *** recycling capability and the long-term stability of the nanopores contribute to a significant reduction in *** study provides a strategy for the quantification of unknown Fe3+concentration using nanopores,with potential applications in environmental assessment,health monitoring,and so forth.

关键词： Bioinspired nanopores Chemical binding affinity Fe3+ ion quantification Reusability Tannic acid

Coating colloidal particles with a well-defined polymer layer by surface-initiated photoinduced polymerization-induced self-assembly and the subsequent seeded polymerization

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Chinese Chemical Letters 2025年第2期36卷 213-217页

作者： Bing Niu Honggao Huang Liwei Luo Li Zhang Jianbo Tan Department of Polymeric Materials and Engineering School of Materials and EnergyGuangdong University of Technology Guangdong Provincial Key laboratory of Functional soft Condensed Matter

Core-shell colloidal particles with a polymer layer have broad applications in different ***,we developed a two-step method combining aqueous surface-initiated photoinduced polymerization-induced self-assembly and photoinduced seeded reversible addition-fragmentation chain transfer (RAFT) polymerization to prepare a diverse set of core-shell colloidal particles with a well-defined polymer *** compositions,structures,and thicknesses of polymer layers could be conveniently regulated by using different types of monomers and feed[monomer]/[chain transfer agent]ratios during seeded RAFT polymerization.

关键词： Core-shell colloidal particles Photoinduced polymerization-induced self-assembly RAFT polymerization Seeded polymerization Surface-initiated polymerization

On load dependence of detachment rate of kinesin motor

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Chinese Physics B 2025年第1期34卷 498-505页

作者： Xiao-Xuan Shi Yao Wang Yu-Ru Liu Ping Xie School of Pharmaceutical Engineering Chongqing Chemical Industry Vocational CollegeChongqing 401220China laboratory of soft Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

Kinesin is an archetypal microtubule-based molecular motor that can generate force to transport cargo in cells. The load dependence of the detachment rate is an important factor of the kinesin motor, the determination of which is critically related to the chemomechanical coupling mechanism of the motor. Here, we use three models for the load dependence of the detachment rate of the kinesin motor to study theoretically and numerically the maximal force generated and microtubuleattachment duration of the motor. By comparing the theoretical and numerical results with the available experimental data,we show that only one model can explain well the available experimental data, indicating that only this model can be applicable to the kinesin motor.

关键词： kinesin detachment rate generated force chemomechanical coupling mechanism optical trapping

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An electrically activable nanochip to intensify gas-ionic-immunotherapy

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Science Bulletin 2025年第3期70卷 390-406页

作者： Gang Wang Jingrui Li Shumin Sun Yuqi Yang Zhihui Han Zifan Pei Liang Cheng Institute of Functional Nano&soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China

Excess intracellular H_(2)S induces destructive mitochondrial toxicity,while overload of Zn^(2+)results in cell pyroptosis and potentiates the tumor immunogenicity for ***,the precise delivery of both therapeutics remains a great ***,an electrically activable ZnS nanochip for the controlled release of H_(2)S and Zn^(2+)was developed for enhanced gas-ionic-immunotherapy(GIIT).Under an electric field,a locality with particularly high concentrations of H_(2)S and Zn^(2+)was established by the voltage-controlled degradation of the ZnS nanoparticles(NPs).Consequently,the ZnS nanochip-mediated gas-ionic therapy(GIT)resulted in mitochondrial membrane potential depolarization,energy generation inhibition,and oxidative stress imbalance in tumor ***,the cyclic guanosine monophosphate-adenosine monophosphate synthase-stimulator of interferon genes(cGAS-STING)signaling pathway was activated due to the mitochondrial ***,the released Zn^(2+)resulted in the increase of the intracellular Zn levels and cell pyroptosis,which enhanced the immunogenicity via the release of damage-associated molecular patterns(DAMPs).In vitro and in vivo studies revealed that the ZnS nanochip-based GIT effectively eliminated the tumors under an electric field and mobilized the cytotoxic T lymphocytes for *** combination withαCTLA-4 further promoted the adaptive immune response and inhibited tumor metastasis and long-term tumor *** work presented an electrically activable ZnS nanochip for combined immunotherapy,which might inspire the development of electric stimulation therapy.

关键词： H_(2)S gas therapy lonic interference therapy Electrically controll eddelivery Cell pyroptosis CGAS-STING pathway

Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong Xin Wang Junwu Zhu Yongsheng Fu Key laboratory for soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and TechnologyNanjing 210094JiangsuChina Jiangsu Pylon Battery Co.Ltd Yangzhou 211400JiangsuChina

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene (PP) *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance(145.88 MPa) of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm^(-2)with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

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Hybrid conductive-lithophilic-fluoride triple protection interface engineering:Dendrite-free reverse lithium deposition for high-performance lithium metal batteries

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Journal of Energy Chemistry 2025年第2期101卷 416-428页

作者： Huiying Li Chang Hong Runming Tao Xiaolang Liu Jianxing Wang Jianyu Chen Shuhao Yao Jiazhi Geng Guang Zheng Jiyuan Liang Key laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Optoelectronic Materials & Technology Jianghan University Applied Materials Division Argonne National Laboratory State Key laboratory of Organic electronics and Information Displays & Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications

Lithium metal batteries（LMBs） with high energy density are impeded by the instability of solid electrolyte interface（SEI） and the uncontrolled growth of lithium（Li） *** mitigate these challenges,optimizing the SEI structure and Li deposition behavior is the key to stable *** study novelty proposes a facile synthesis of MgF2/carbon（C） nanocomposite through the mechanochemical reaction between metallic Mg and polytetrafluoroethylene（PTFE） powders,and its modified polypropylene（PP）separator enhances LMB *** in-situ formed highly conductive fluorine-doped C species play a crucial role in facilitating ion/electron transport,thereby accelerating electrochemical kinetics and altering Li deposition *** cycling,the in-situ reaction between MgF2and Li leads to the formation of LiMg alloy,along with a LiF-rich SEI layer,which reduces the nucleation overpotential and reinforces the interphase strength,leading to homogeneous Li deposition with dendrite-free *** from these merits,the Li metal is densely and uniformly deposited on the MgF2/C@PP separator side rather than on the current collector ***,the symmetric cell with MgF2/C@PP exhibits superb Li plating/stripping performance over 2800 h at 1 mA cm-2and 2 mA h *** importantly,the assembled Li@MgF2/C@PPILiFePO4full cell with a low negative/positive ratio of 3.6delivers an impressive cyclability with 82.7% capacity retention over 1400 cycles at 1 C.

关键词： Lithium metal batteries Mechanochemical reaction MgF2 Reverse deposition Separator modification