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Preparation of low Ratio magnesium Ccement by Acid leaching Treatment of Boron mud

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Journal of Wuhan University of Technology(materials Science) 2025年第1期40卷 120-129页

作者： YANG mei ZHANG mingzhe CHEN hao School of materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China School of Physical Science and Technology Shenyang Normal UniversityShenyang 110168China

The effects of liquid-solid ratio and reaction time on the leaching rate of magnesium at room temperature were investigated,as well as the effects of the molar ratio of mgO/mgCl_(2),the amount of water added,and the amount of acid-impregnated slag dosed on the compressive strength and water resistance of *** results showed that the magnesium el.m.nt in the boron mud could be maximally leached under the conditions of 1:1 concentration of hydrochloric acid at room temperature,liquid-solid ratio of 2.5 ml·g^(-1),and reaction time of 5 h,and the main products were amorphous SiO_(2) as well as a small amount of magnesium olivine which had not been completely *** lR-mOC prepared using the acid-soaked mixture could reach a softening coefficient of 0.85 for 28 d of water immersion when the molar ratio of mgO/mgCl_(2) was 2.2,the amount of water added was 0 g,and the acid-soaked slag dosing was 40 wt%,which also led to an appreciable late-strength,with an increase of 19.4%in compressive strength at 28 d compared to that at 7 *** previous studies,lR-mOC prepared in this way has a final strength phase that is not the more easily hydrolysed 3-phase but the lath-like *** this phenomenon,we analyzed the mechanism and found that,during the acid leaching process,a part of amorphous SiO_(2) dissolved in the acid leaching solution formed a silica sol,in which mg^(2+)played a bridging role to make the silica sol.m.re *** the addition and hydrolysis of mgO,the silica sol gel coagulation slows down,providing a capping layer to inhibit the hydrolysis of the 5-phase crystals and providing some strength after *** amorphous SiO_(2) in the other part of the acid-impregnated slag generated m-S-H gel with mg^(2+)and OH-,which synergised with the dense structure composed of interlocking crystals to improve the water resistance of lR-mOC.

关键词： boron mud magnesium chloride-oxygen cement acid immersion water resistance silica sol

Gradient‑layered mXene/Hollow lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors

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Nano-micro letters 2025年第2期17卷 447-462页

作者： haonan Zhang Cheng hao Tongtong Fu Dian Yu Jane Howe Kaiwen Chen Ning Yan hao Ren Huamin Zhai Jiangsu Provincial Key lab of Sustainable Pulp and Paper Technology and Biomass materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HlNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) mXene)for fabricating highly stretchable and durable *** depositing and inserting HlNPs in the mXene layers with a bottom-up decreasing gradient,a multilayered porous mXene structure with smooth ion channels was constructed by reducing the overstacking of mXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and mXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HlNPs,which acted as a protective phase for mXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres mXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

Ultra‑High Sensitivity Anisotropic Piezoelectric Sensors for Structural Health monitoring and Robotic Perception

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Nano-micro letters 2025年第2期17卷 432-446页

作者： hao Yin Yanting li Zhiying Tian Qichao li Chenhui Jiang Enfu liang Yiping Guo State Key laboratory of metal.m.trix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Beijing Vacuum Electronics Research Institute Beijing 100015People’s Republic of China Fundamental Science On Vibration Shock and Noise LaboratoryState Key Laboratory of Mechanical System and VibrationSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

monitoring minuscule mechanical signals,both in magnitude and direction,is imperative in many application scenarios,e.g.,structural health monitoring and robotic sensing ***,the piezoelectric sensor struggles to satisfy the requirements for directional recognition due to the l.m.ted piezoelectric coefficient matrix,and achieving sensitivity for detecting micrometer-scale deformations is also ***,we develop a vector sensor composed of lead zirconate titanate-electronic grade glass fiber composite fil.m.nts with oriented arrangement,capable of detecting minute anisotropic *** as-prepared vector sensor can identify the deformation directions even when subjected to an unprecedented nominal strain of 0.06%,thereby enabling its utility in accurately discerning the 5μm-height wrinkles in thin films and in monitoring human pulse *** ultra-high sensitivity is attributed to the formation of porous ferroelectret and the efficient load transfer efficiency of continuous lead zirconate titanate ***,when integrated with machine learning techniques,the sensor’s capability to recognize multi-signals enables it to differentiate between 10 types of fine textures with 100%*** structural design in piezoelectric devices enables a more comprehensive perception of mechanical stimuli,offering a novel perspective for enhancing recognition accuracy.

关键词： Flexible piezoelectric fil.m.nts Anisotropic Ultra-high sensitivity Structural health detection Texture recognition

A mild, configurable, flexible CoNi-lDH（v）/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation

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Journal of Energy Chemistry 2025年第1期100卷 498-508页

作者： Xinyue Cheng Dingsheng Wu hao Gao Qingqing Wang Pengfei lv Sam S.Yoon Qufu Wei Key laboratory of Eco-textiles Ministry of Education Jiangnan University School of mechanical Engineering Korea University

Flexible Zn-based batteries have attracted increasing research interest as essential components of wearable energy storage ***,the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide （CoNi-lDH） as the cathode material is hampered by their poor cycling stability and the corrosiveness of alkaline ***,CoNi-lDH nanosheets enriched with H vacancies (CoNi-lDH（v）) were constructed on a flexible carbon cloth （CC） substrate via electrochemical deposition and *** Zn-based battery comprising CoNi-lDH（v）@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 m ZnSO4electrolyte （pH=4）.The battery delivered an excellent specific capacity (225 mA h g-1,0.26 mA h cm-2),acceptable cycling stability（53.9%,900 cycles）,and high discharging *** abundant H vacancies served as active sites for the reversible intercalation of Zn2+and the extravasation of NO3-generated channels and space for Zn2+transport and storage,together enabling an excellent Zn2+storage ***,a sandwich-structured solid-state CoNi-lDH（v）@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical *** a proof of concept,the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 ***,the flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.

关键词： CoNi/Zn battery H vacancies mild aqueous electrolyte Tailorable battery Wearable energy storage device

Emerging role of A-kinase anchoring protein 5 signaling in reward circuit function

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Neural Regeneration Research 2025年第10期20卷 2913-2914页

作者： William J.Flerlage mark l.Dell’Acqua Brian m.Cox Fereshteh S.Nugent Uniformed Services University of the Health Sciences Department of Pharmacology and Molecular TherapeuticsBethesdaMDUSA Department of Pharmacology University of Colorado School of MedicineAnschutz Medical CampusAuroraCOUSA

There is a strong evidence supporting the hypothesis of synaptic dysfunction as a major contributor to neural circuit and network disruption underlying emotional and mood dysregulation in psychiatric disorders(Simmons et al.,2024).Diverse sets of distinct molecular signaling pathways converge on the synapse to regulate synaptogenesis,synaptic function,and synaptic plasticity in brain regions and circuits through complex interactions organized by numerous multivalent protein scaffolds,including the family of proteins known as A-kinase anchoring proteins(AKAPs).

关键词： function supporting

Controllably elevating the initial Coul.m.ic efficiency of li3VO4 anode via a facile electrode pre-lithiation technique for lithium-ion batteries

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Science China Chemistry 2025年

作者： haoyue liang Xingguo Zhong Guxin Huang Wenpan liu Yao liu Shuhao Wang Deyu Wang hao liu hao Wang Tianyou Zhai Huiqiao li State Key laboratory of materials Processing and Die & mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Shenzhen Research Institute of Huazhong University of Science and Technology Key laboratory of Optoelectronic Chemical.m.terials and Devices (ministry of Education) School of Optoelectronic Materials &Technology Jianghan University Centre for Clean Energy Technology Faculty of Science University of Technology Sydney Yichang Brunp Recycling Technology Co. Ltd.

li3VO4has been a promising insertion anode material for li-ion batteries,which has high theoretical capacity (up to～600 mAh g-1) and safe li insertion voltage （0.5–1 V ***/li+）.However,the low initial Coul.m.ic efficiency （ICE） has always been the bottleneck l.m.ting its ***,we propose a facile pre-lithiation method to controllably elevate the ICE by the post-treatment of the prepared li3VO4composite electrode based on an immersion *** this process,the whole electrode was immersed in the liquid li source,via which the ICE of the li3VO4electrode can be controllably elevated from 80%to over 100%within 5 min of *** than the traditional powder treatment for pre-lithiation,this process we proposed minimizes the impact of pre-lithiation on the battery assembly ***,we further investigated the effect of this pre-lithiation process on the functional components in the *** the first time the ICE of li3VO4electrode was elevated to 100%.As a result,the initial reversible capacity of liFePO4||li3VO4full cell was improved from 44.0 to146.3 m Ah g-1,demonstrating the feasibility and great potential of the process.

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moS_(2)lubricate‑Toughened mXene/ANF Composites for multifunctional Electromagnetic Interference Shielding

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Nano-micro letters 2025年第2期17卷 358-371页

作者： Jiaen Wang Wei ming longfu Chen Tianliang Song moxi Yele hao Zhang long Yang Gegen Sarula Benliang liang luting Yan Guangsheng Wang School of Physical Science and Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China Key laboratory of Bio‑Inspired Smart Interfacial Science and Technology of ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

The design and fabrication of high toughness electromagnetic interference(EmI)shielding composite films with diminished reflection are an imperative task to solve electromagnetic pollution *** mXene/ANF(aramid nanofibers)–moS_(2)composite films with nacre-like layered structure here are fabricated after the introduction of moS_(2)into binary mXene/ANF composite *** introduction of moS_(2)fulfills an impressive“kill three birds with one stone”improvement effect:lubrication toughening mechanical performance,reduction in secondary reflection pollution of electromagnetic wave,and improvement in the performance of photothermal *** the introduction of moS_(2)into binary mXene/ANF(mass ratio of 50:50),the strain to failure and tensile strength increase from 22.1±1.7%and 105.7±6.4 mPa and to 25.8±0.7%and 167.3±9.1 mPa,*** toughness elevates from 13.0±4.1 to 26.3±0.8 mJ m^(−3)(~102.3%)*** the reflection shielding effectiveness(SE_(R))of mXene/ANF(mass ratio of 50:50)decreases~10.8%.EmI shielding effectiveness(EmI SE)elevates to 41.0 dB(8.2–12.4 GHz);After the introduction of moS_(2)into binary mXene/ANF(mass ratio of 60:40),the strain to failure increases from 18.3±1.9%to 28.1±0.7%(~53.5%),the SE_(R)decreases~22.2%,and the corresponding EmI SE is 43.9 *** moS_(2)also leads to a more efficient photothermal conversion performance(~45 to~55℃).Additionally,mXene/ANF–moS_(2)composite films exhibit excellent electric heating performance,quick temperature elevation(15 s),excellent cycle stability(2,2.5,and 3 V),and long-term stability(2520 s).Combining with excellent mechanical performance with high mXene content,electric heating performance,and photothermal conversion performance,EmI shielding ternary mXene/ANF–moS_(2)composite films could be applied in many industrial *** work broadens how to achieve a balance between mechanical properties and versatility of composites in the case of high-function fillers.

关键词： mXene-moS_(2) lubrication toughening EmI shielding Photothermal conversion Electric heating performance

low‑Temperature Fabrication of Stable Black‑Phase CsPbI_(3)Perovskite Flexible Photodetectors Toward Wearable Health monitoring

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Nano-micro letters 2025年第3期17卷 232-245页

作者： Yingjie Zhao Yicheng Sun Chaoxin Pei Xing Yin Xinyi li Yi hao mengru Zhang meng Yuan Jinglin Zhou Yu Chen Yanlin Song College of Chemistry and Pingyuan laboratory Zhengzhou UniversityZhengzhou 450001People’s Republic of China Key laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key laboratory of Bio‑Inspired materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China

Flexible wearable optoelectronic devices fabricated fromorganic–inorganic hybrid perovskites significantly accelerate the developmentof portable energy,biomedicine,and sensing fields,but their poor thermal stabilityhinders further ***,all-inorganic perovskites possessexcellent thermal stability,but black-phase all-inorganic perovskite filmusually requires high-temperature annealing steps,which increases energy consumptionand is not conducive to the fabrication of flexible wearable *** this work,an unprecedented low-temperature fabrication of stable blackphaseCsPbI3perovskite films is demonstrated by the in situ hydrolysis reactionof diphenylphosphinic chloride *** released diphenyl phosphateand chloride ions during the hydrolysis reaction significantly lower the phasetransition temperature and effectively passivate the defects in the perovskitefilms,yielding high-performance photodetectors with a responsivity of 42.1 AW−1 and a detectivity of 1.3×10^(14)***,high-fidelity imageand photoplethysmography sensors are demonstrated based on the fabricated flexible wearable *** work provides a newperspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

Smart windows with high optical transparency and structural color

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Science China Chemistry 2025年

作者： Youtong Wu Xueting li Yiwen li hao Wang Yuqi Zhang Xihua lu College of Chemistry and Chemical Engineering Donghua University Fujian Nano-micro Advanced materials Sci.& Tech.Co.ltd. Jinjiang Innovation Entrepreneurship and Creativity Park Shanghai Evanston Advanced materials Sci.& Tech.Co.ltd.

In recent years, thermochromic smart windows have played an important role in enhancing energy efficiency and contributing to carbon neutrality in building energy consumption. However, thermal-shielding smart windows with high visible light modulation and structural colors are rarely reported. This study focuses on the development of thermochromic smart windows utilizing poly（N-isopropylacryl.m.de）(PNIPAm)-based nanogels, which exhibit dynamic solar modulation and high visible light transmission without additional energy input. Unlike traditional electrochromic materials such as tungsten trioxide, these smart windows achieve structural color states through the self-assembly of nanogels, el.m.nating the need for inorganic materials. The fabricated hydrogel contains thermo-responsive poly（N-isopropylacryl.m.de-random-acrylic acid-random-N-tert-butyl acryl.m.de）P（NIPAm-r-AA-r-TBA）(PNTA) nanogels with tunable phase transition temperatures（Tp） that align with ambient *** smart windows demonstrate excellent stability over 100 heating-cooling cycles and significant temperature regulation,achieving an indoor temperature modulation of 10 °C and energy savings of 14.24 KJ m-3compared with normal windows. The production process is simple and scalable, making it feasible for industrial applications. Furthermore, these smart windows offer additional functionalities such as information encryption, adding value to their practical application.

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