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Stable nanobubbles on ordered water monolayer near ionic model surfaces

Chinese Physics B 2025年第1期34卷 143-148页

作者： Luyao Huang Cheng Ling Limin Zhou Wenlong Liang Yujie Huang Lijuan Zhang Phornphimon Maitarad Dengsong Zhang Chunlei Wang Research Center of Nano Science and Technology Department of ChemistryCollege of SciencesShanghai UniversityShanghai 200444China International Joint Laboratory of Catalytic Chemistry College of SciencesShanghai UniversityShanghai 200444China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China

The stable nanobubbles adhered to mineral surfaces may facilitate their efficient separation via flotation in the mining ***,the state of nanobubbles on mineral solid surfaces is still *** this study,molecular dynamics(MD)simulations are employed to examine mineral-like model surfaces with varying degrees of hydrophobicity,modulated by surface charges,to elucidate the adsorption behavior of nanobubbles at the *** findings not only contribute to the fundamental understanding of nanobubbles but also have potential applications in the mining *** observed that as the surface charge increases,the contact angle of the nanobubbles increases accordingly with shape transformation from a pancake-like gas film to a cap-like shape,and ultimately forming a stable nanobubble upon an ordered water *** the solid–water interactions are weak with a small partial charge,the hydrophobic gas(N_(2))molecules accumulate near the solid ***,we have found,for the first time,that gas molecules assemble a nanobubble on the water monolayer adjacent to the solid surfaces with large partial *** phenomena are attributed to the formation of a hydrophobic water monolayer with a hydrogen bond network structure near the surface.

关键词： nanobubbles molecular dynamic simulation ordered water monolayer hydrogen bond network

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Temperature Sensitivity of Modulation Depth in a SWCNT/PDMS Saturable Absorber

Temperature Sensitivity of Modulation Depth in a SWCNT/PDMS ...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Hamilton, Rhona L. Horiuchi, Moeri Shirahata, Takuma Set, Sze Y. Yamashita, Shinji Research Center for Advanced Science and Technology The University of Tokyo 4-6-1 Komaba Meguro-ku Tokyo153-8904 Japan

Threshold pump power for modelocking decreased by 18% over 75◦C when a temperature dependent SWCNT/PDMS coated tapered fiber was used as the saturable absorber in a fiber laser. © Optica Publishing Group 2024 ... 详细信息

ISBN: (纸本)9781957171395

关键词： Laser excitation

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Robust Magnetism Against Pressure in Non-Superconducting Samples Prepared from Lutetium Foil and H2/N2 Gas Mixture

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Chinese Physics Letters 2023年第9期40卷 78-81页

作者：郭静蔡树王东束海云杨留响王鹏玉汪文韬田焕芳杨槐馨周亚洲赵金瑜韩金宇李建奇吴奇丁阳杨文革向涛毛河光孙力玲 Institute of Physics Chinese Academy of SciencesBeijing 100190China Center for High Pressure Science&Technology Advanced Research Beijing 100094China University of Chinese Academy of Sciences Beijing 100190China

We report the observation of a magnetic transition at the temperature about 56 K,through the high-pressure heat capacity and magnetic susceptibility measurements on the samples that have been claimed to be a nearroom-temperature superconductor[Dasenbrock-Gammon et *** 615,244(2023)].Our results show that this magnetic phase is robust against pressure up to 4.3 GPa,which covers the critical pressure of boosting the claimed superconductivity.

关键词： claimed magnetic superconductor

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Hierarchical Fe-Bi/Bi_7O_9I_(3)/OVs microspheres coupled with natural air diffusion electrode to achieve efficient heterogeneous visible-light-driven photoelectro-Fenton degradation of tetracycline without aeration

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Chinese Chemical Letters 2025年第4期36卷 384-391页

作者： Ruiheng Liang Huizhong Wu Zhongzheng Hu Ge Song Xuyang Zhang Omotayo A.Arotiba Minghua Zhou Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Tianjin Advanced Water Treatment Technology International Joint Research Center College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Department of Chemical Sciences University of JohannesburgDoornfontein 2028South Africa Centre for Nanomaterials Science Research University of JohannesburgDoornfontein 2028South Africa

A novel Fe-doping three-dimensional fiower-like Bi_(7)O_(9)I_(3) microspheres with plasmonic Bi and rich surface oxygen vacancies(Fe-Bi/Bi_(7)O_(9)I_(3)/OVs)was prepared as catalysts,and further coupled with natural air diffusion electrode(NADE)to construct the heterogeneous visible-light-driven photoelectro-Fenton(HEVL-PEF)process to enhance the degradation and mineralization of tetracycline(TC).Interfacial≡Fe sites,OVs and Bi metal were simultaneously constructed via Fe doping,which effectively improved visible light absorption and the separation efficiency of photogenerated carriers to further accelerate the transformation of Fe(Ⅲ)to Fe(Ⅱ),achieving Fenton reaction ***-VL-PEF process could achieve enhanced treatment of pollutants,thanks to the synergistic effect of electro-Fenton(EF)and photo-Fenton(PF).NADE exhibited excellent H_(2)O_(2) electrosynthesis without external oxygen-pumping *** the irradiation of visible light,Fe-Bi/Bi_(7)O_(9)I_(3)/OVs could achieve more photoelectrons to accelerate the transformation of Fe(Ⅲ)to Fe(Ⅱ)or directly activate *** calculations also clearly demonstrated that except for the fast charge separation and transfer,Fe-Bi/Bi_(7)O_(9)I_(3)/OVs could achieve a faster electron transport between Fe-O,facilitating Fe site acquire more ***,the Fe-Bi/Bi_(7)O_(9)I_(3)/OVs in HE-VL-PEF process presented performance superiorities including excellent pollutant removal(91.91%),low electric energy consumption of 66.34 k Wh/kg total organic carbon(TOC),excellent reusability and wide p H adaptability(3–9).

关键词： Bi_7O_9I_(3) Fe doping Heterogeneous visible-light-driven photoelectron-Fenton Plasmonic Bi Oxygen vacancies

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Highly crystalline and water-wettable benzobisthiazole-based covalent organic frameworks for enhanced photocatalytic hydrogen production

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National science Review 2023年第1期10卷 268-276页

作者： Wei Huang Yongpan Hu Zhengyuan Qin Yujin Ji Xuan Zhao Yunling Wu Qing He Youyong Li Chunfeng Zhang Jun Lu Yanguang Li Institute of Functional Nano and Soft Materials(FUNSOM) Soochow University Jiangsu Key Laboratory for Advanced Negative Carbon Technologies Soochow University National Laboratory of Solid State Microstructures School of Physics and Collaborative Innovation Center for Advanced MicrostructuresNanjing University Macao Institute of Materials Science and Engineering (MIMSE) MUST-SUDA Joint Research Center for Advanced Functional Materials Macau University of Science and Technology College of Chemical and Biological Engineering Zhejiang University

Two-dimensional covalent organic frameworks are promising for photocatalysis by virtue of their structural and functional diversity,but generally suffer from low activities relative to their inorganic *** fulfill their full potential re quires a rational tailoring of their structures at different scales as well as their surface ***,we demonstrate benzobisthiazole-based covalent organic frameworks as a superior photocatalyst for hydrogen *** product features high crystallinity with ordered 2.5-nm-wide cylindrical mesopores and great water *** structural advantages afford our polymeric photo catalyst with fast charge carrier dynamics as evidenced by a range of spectroscopic characterizations and excellent catalytic performances when suspended in solution or supported on melamine *** visible-light irradiation,it enables efficient and stable hydrogen evolution with a production rate of 487 μmol h-1(or a mass-specific rate of 48.7 mmol g-1h-1)—far superior to the previous state of the *** also demonstrate that hydrogen production can be stoichiometrically coupled with the oxidation conversion of biomass as exemplified by the conversion of furfuryl alcohol to 2-furaldehyde.

关键词： covalent organic frameworks photocatalysis hydrogen evolution benzobisthiazole water-wettable

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Bi2S3 and NiBiS3 electrocatalysts for alkaline hydrogen evolution reactions

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International Journal of Hydrogen Energy 2025年 143卷 1330-1338页

作者： Aksaray, Goncagül Mert, Mehmet Erman Mert, Başak Doğru Kardaş, Gülfeza Çukurova University Arts and Sciences Faculty Chemistry Dep. Adana01330 Turkey Adana Alparslan Türkeş Science and Technology University Advanced Technology Research and Application Center Adana01250 Turkey Adana Alparslan Türkeş Science and Technology University Engineering Faculty Energy Systems Engineering Dep. Adana01250 Turkey

Developing efficient and available catalysts is important for advancing hydrogen evolution reaction (HER) in alkaline water electrolysis, a promising technology for sustainable hydrogen production. This study reports the synthesis and electrochemical performance of Bi2S3 and NiBiS3 catalysts for the HER in alkaline water electrolysis. The catalysts were prepared via a hydrothermal method and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). The electrochemical behavior was evaluated using cyclic voltammetry (CV), cathodic current-potential curves (Tafel polarization), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA) in 1 M KOH. The graphite electrode modified with NiBiS3 exhibited high catalytic activity. The significant increase in current density and decrease in polarization resistance from 3000 Ω cm2 (bare graphite) to 18.55 Ω cm2 were detected. The G/NiBiS3 electrode outperformed both the bare graphite and G/Bi2S3 electrodes, with the current density reaching −2.3 × 10−3 A cm−2 at −0.26 V. Morphological analysis revealed that Bi2S3 forms flower-like structures, while NiBiS3 exhibits a cauliflower-like morphology, providing increased active surface areas important for catalytic activity. The Tafel slope analysis confirmed the Volmer step as the rate-determining step in the HER mechanism, with the adsorbed hydrogen subsequently forming molecular hydrogen. Stability testing through CA demonstrated consistent catalytic activity, with the current density maintained at −0.014 A cm−2 over 75000 s. These findings demonstrate the potential of NiBiS3 as a reliable and effective catalyst for alkaline electrolysis-based sustainable hydrogen production. © 2025

关键词： Cyclic voltammetry

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Amorphous-to-crystalline transition-induced two-step thin film growth of quasi-one-dimensional penta-telluride ZrTe5

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材料科学技术（英文版） 2025年第7期210卷 246-253页

作者： Yi Shuang Yuta Saito Shogo Hatayama Paul Fons Ando Daisuke Yuji Sutou WPI Advanced Institute for Materials Research Tohoku University2-1-1 KatahiraAoba-kuSendai 980-8577Japan Research Center for Green X-Tech Tohoku University6-6-11 Aoba-yamaAoba-kuSendai 980-8579Japan Department of Materials Science Graduate School of EngineeringTohoku University6-6-11 Aoba-yamaSendai 980-8579Japan Device Technology Research Institute National Institute of Advanced Industrial Science and Technology(AIST)Tsukuba Central 2Umezono 1-1-1Tsukuba 305-8568Japan Device Technology Research Institute National Institute of Advanced Industrial Science and Technology(AIST)Tsukuba Central 2Umezono 1-1-1Tsukuba 305-8568Japan Department of Electronics and Electrical Engineering Faculty of Science and TechnologyKeio University3-14-1 HiyoshiKohoku-kuYokohamaKanagawa 223-8522Japan Department of Materials Science Graduate School of EngineeringTohoku University6-6-11 Aoba-yamaSendai 980-8579Japan WPI Advanced Institute for Materials Research Tohoku University2-1-1 KatahiraAoba-kuSendai 980-8577Japan Department of Materials Science Graduate School of EngineeringTohoku University6-6-11 Aoba-yamaSendai 980-8579Japan

Quasi-one-dimensional(quasi-1D)van der Waals(vdWs)materials,such as ZrTe5,exhibit unique elec-trical properties and quantum phenomena,making them attractive for advanced electronic ***,large-scale growth of ZrTe5 thin films presents *** address this by employing sput-tering,a common semiconductor industry *** as-deposited ZrTe5 film is amorphous,and post-annealing induces a crystallization process akin to transition-metal *** study in-vestigates the electrical and optical properties during this amorphous-to-crystalline transition,reveal-ing insights into the underlying *** work contributes to the fundamental understanding of quasi-1D materials and introduces a scalable fabrication method for ZrTe5 which offers the possibility of fabricating unique future electronic and optical devices.

关键词： Quasi-one-dimensional ZrTe5 Large-scale Thin film Phase-change

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Cosolvent electrolyte chemistries for high-voltage potassium-ion battery

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National science Review 2024年第11期11卷 172-182页

作者： Mengkang Shen Zhongqin Dai Ling Fan Hongwei Fu Yuanhui Geng Jie Guan Fanfei Sun Apparao M.Rao Jiang Zhou Bingan Lu School of Physics and Electronics Hunan University School of Physical Science and Technology Shanghai Tech University Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai Institute of Applied Physics Chinese Academy of Sciences Department of Physics and Astronomy Clemson Nanomaterials Institute Clemson University School of Materials Science and Engineering Central South University State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan University

The poor oxidation resistance of traditional electrolytes has hampered the development of high-voltage potassium-ion battery technology. Here, we present a cosolvent electrolyte design strategy to overcome the high-voltage limitations of potassium-ion electrolyte chemistries. The cosolvent electrolyte breaks the dissolution limitation of the salt through ion–dipole interactions, significantly enlarging the anion-rich solvation clusters, as verified by the in situ synchrotron-based wide-angle X-ray scattering ***, the large anion-rich solvation clusters also facilitate the formation of an effective electrode–electrolyte interphase, thereby enhancing compatibility with high-voltage electrodes. The cosolvent electrolyte enables K||Prussian blue cells (2–4.5 V) to operate for >700 cycles with a capacity retention of 91.9%. Our cosolvent electrolyte design strategy paves new avenues for the development of high-voltage potassium-ion batteries and beyond.

关键词： potassium-ion battery cosolvent electrolyte high-voltage anion-rich solvation large solvation clusters

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Enantiospecific Photoresponsive Metallacages Based on Sterically Hindered Diarylethenes for Chiral Recognition

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CCS Chemistry 2025年第4期7卷 1005-1015页

作者： Shaomeng Guo Mengqi Li Cheng Lian Weiwei Zhang Honglong Hu Ning Lv Wei-Hong Zhu Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237

Dynamic chiral materials with noncontactable,lightactivated,and reversible features have attracted considerable attention in photoprogrammable liquid crystals and chiral optoelectronic ***,most attempts to construct three-dimensional(3D)supramolecular chiral nanocages are limited to using nonresponsive chiral building blocks,which often results in the formation of architectures in shortage of tunable capacity,especially for the desirable dynamic,photoresponsive,and reversible chirality *** we report the construction of the first photoswitchable intrinsic chiral metallacages,(P)-and(M)-MOC1 and MOC_(2) based on sterically hindered diarylethene-based subcomponents,thereby achieving the unique light-driven reversible enantiospecific transformation between axial helicity and central asymmetry in 3D *** the increasing cage tension during cyclization,it can be explored as a chiral encapsulant in nanocavity windows while possessing prominent enantioselectivity toward a pair of chiral camphor sulfonate *** work opens a new avenue to construct the unprecedented light-activated intrinsic chiral metallacages,aiming at their potential applications for chiral recognition,separation,and asymmetric catalysis.

关键词： photochromism diarylethenes metallcages intrinsic chirality chiral recognition

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End-group modulation of phenazine based non-fullerene acceptors for efficient organic solar cells with high open-circuit voltage

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Journal of Energy Chemistry 2024年第1期88卷 461-468,I0011页

作者： Yahui Zhang Yafeng Li Ruixiang Peng Yi Qiu Jingyu Shi Zhenyu Chen Jinfeng Ge Cuifen Zhang Zheng Tang Ziyi Ge School of Materials Science and Engineering Shanghai UniversityShanghai 200444China Zhejiang Business Technology Institute Ningbo 315012ZhejiangChina Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201ZhejiangChina Center for Advanced Low-dimension Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Phenazine-based non-fullerene acceptors(NFAs)have demonstrated great potential in improving the power conversion efficiency(PCE)of organic solar cells(OSCs).Halogenation is known to be an effective strategy for increasing optical absorption,refining energy levels,and improving molecular packing in organic ***,a series of NFAs(Pz IC-4H,Pz IC-4F,Pz IC-4Cl,Pz IC-2Br)with phenazine as the central core and with/without halogen-substituted(dicyanomethylidene)-indan-1-one(IC)as the electron-accepting end group were synthesized,and the effect of end group matched phenazine central unit on the photovoltaic performance was systematically *** photophysical and morphological analyses revealed that the PM6:Pz IC-4F blend involves efficient exciton dissociation,higher charge collection and transfer rates,better crystallinity,and optimal phase ***,OSCs based on PM6:Pz IC-4F as the active layer exhibited a PCE of 16.48%with an open circuit voltage(Voc)and energy loss of 0.880 V and 0.53 e V,***,this work demonstrated a promising approach by designing phenazine-based NFAs for achieving high-performance OSCs.

关键词： Organic solar cells Non-fullerene acceptor Phenazine Central core End group

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