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Enhanced potassium storage of carbon nanofibers as binderfree anodes enabled by coupling ultra-small amorphous Sb_(2)O_(3),graphene modification and sulfur doping

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Rare Metals 2024年第1期43卷 51-64页

作者： Zhao Huang yu-Kang lou Lin Peng yuan Peng Meng-Meng Wang Ming Zhang College of Railway Transportation Hunan University of TechnologyZhuzhou 412007China College of Semiconductors(College of Integrated Circuits) Changsha Semiconductor Technology and Application Innovation Research InstituteHunan UniversityChangsha 410082China Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education College of Semiconductors(College of Integrated Circuits)Hunan UniversityChangsha 410082China

Considering the intrinsic advantages of natural copiousness and cost-effectiveness of potassium resource,potassium-ion batteries(KIBs) are booming as prospective alternatives to lithium-ion batteries(LIBs) in large-scale energy storage scenarios. Nevertheless, lacking desirable electrodes for reversibly hosting the bulky K+hinders the widespread application of KIBs, and it needs to be urgently solved. Hereon, the porous S-doped Sb_(2)O_(3)-graphene-carbon(SAGC) nanofibers are manufactured through an adjustable and facile approach, which involves electrospinning, in situ etching and sulfuration. The synthesized SAGC is featured by the ultra-small amorphous Sb_(2)O_(3) homogeneously wrapped inside the carbon matrix, as well as the co-incorporation of graphene and sulfur. Tentatively,the SAGC nanofiber sheets are applied as binder-free anodes for KIBs, exhibiting a prominent cycling life(256.72 m Ah·g^(-1) over 150 cycles at 100 m A·g^(-1)) and rate·g^(-1) over 100 cycles at 1 A·g^(-1)). The positive synergy among all the active components accounts for the distinguished performances of the SAGC. By reinforcing the tolerability to the swelling stress, producing the valid electrochemical active sites, and promoting the charge transferring for reversible K+uptake, the SAGC finally renders the excellent cyclability, capacity, and rate capability. Moreover, the extrinsic electrochemical pseudocapacitance characteristics induced by the porous carbon substrate elevate the K-storage capacity of the SAGC as well. It is hoped that the conclusions drawn may offer new insights into a direction for the high-performance binderfree KIB anodes.

关键词： S-doped Sb_(2)O_(3)-graphene-carbon Nanofibers Binder-free Anodes Potassium-ion batteries

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新就业形态职业伤害保障制度的法理障碍及纾解从“不完全劳动关系”教义学出发

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中外法学 2024年第3期36卷 669-689页

作者：娄宇中国政法大学民商经济法学院

工伤保险系基于劳动关系的人格从属性建立的雇主责任险,旨在为工业时代的劳动者提供个人无力解决的职业伤害保障。新就业形态就业人员职业伤害保障制度的法理障碍是劳动关系,应当从“不完全劳动关系”教义学入手,再结合保险法的一般原... 详细信息

工伤保险系基于劳动关系的人格从属性建立的雇主责任险,旨在为工业时代的劳动者提供个人无力解决的职业伤害保障。新就业形态就业人员职业伤害保障制度的法理障碍是劳动关系,应当从“不完全劳动关系”教义学入手,再结合保险法的一般原理设计结构性制度。相关就业人员受到平台算法的指挥控制,同时也可能受到站点以及相关企业的管理,长期服务于某一平台也可以解读出稳定的工作预期,将工伤保险制度应用于这一群体原则上具备法理正当性,但是要满足合理性要求,还需要做到“靶向施策”:具备部分人格从属性的新就业形态就业人员应当强制加入职业伤害保障制度,由平台企业以合理方式负担缴费,在承担外部连带责任的同时赋予其内部的追偿权利;职业伤害认定应当恪守人格从属性决定的“三工原则”,规避工作任务“原子化”带来的道德风险;在确定工作预期的前提下,由平台企业承担经济从属性决定的生活保障费、伤残津贴、伤残就业补助金等待遇。

关键词：新就业形态职业伤害保障工伤保险不完全劳动关系人格从属性经济从属性

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Fabrication of Ni–Mo–Nb metallic glass/micro-nano lattice composite for nonenzymatic glucose sensing

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Progress in Natural Science:Materials International 2023年第5期33卷 601-606页

作者： Sihan Zhang Wentao Zhang yu lou Zixin Rui Zhongzheng Yao Ao Yan Lan Tan Sinan Liu Jiacheng Ge He Zhu Si Lan Herbert Gleiter Institute of Nanoscience School of Materials Science and Engineering Nanjing University of Science and Technology School of Materials Science and Engineering Henan University of Technology Center for Neutron Scattering City University of Hong Kong Shenzhen Research Institute

The rising global diabetic population has ignited significant interest in enzyme-free electrochemical glucose sensors.However,their widespread usage has been severely impeded by the lack of sensing probes with both high sensitivity and stability.In this work,we present a novel approach for conformally depositing a Ni-Mo-Nb metallic-glass film onto a three-dimensional printed polymer skeleton for glucose detection.The printing template is designed based on a six-membered tricapped trigonal prism(6M-TTP) structure,which is derived from a medium-range order structure motif observed in amorphous alloys.The fabricated composite combines the high electrochemical activity of Ni-Mo-Nb amorphous alloy with the stability afforded by the micro-nano lattice structure,resulting in a high sensitivity(482 μA mM-1cm-2),a wide linear range(0-1 mM and 1-5 mM),a low detection limit(2.94 μM),and good long-term stability and selectivity in alkaline solution.Our work has proposed a new avenue to fabricate complex micro-nano electrodes,potentially offering significant versatility and great promise for widespread applications in the field of electrochemistry.

关键词： Glucose

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Pd–Ni–P metallic glass nanoparticles for nonenzymatic glucose sensing

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Progress in Natural Science:Materials International 2023年第2期33卷 244-249页

作者： yu lou Zhongzheng Yao Shu Fu Sinan Liu Xindong Zhu Wen Huang Min Dong Jianrong Zeng He Lin He Zhu Si Lan Herbert Gleiter Institute of Nanoscience School of Materials Science and Engineering Nanjing University of Science and Technology Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai Institute of Applied Physics Chinese Academy of Sciences Center for Neutron Scattering City University of Hong Kong Shenzhen Research Institute

Metallic glass nanoparticles hold great promise as nonenzymatic glucose sensors due to their rich low-coordinated active sites and high biocompatibility. However,their non-periodic atomic structure and unclear structure-property relationship pose significant challenges for realizing and optimizing their sensing performance. In this work, Pd–Ni–P metallic glass nanoparticles with variable compositions were successfully prepared as nonenzymatic glucose sensors via a laser-evaporated inertgas condensation method. The electrochemical tests show that the sensor based on Pd41.25Ni41.25P17.5nanoparticles shows a wide linear detection range(0.003–1.31m M), high sensitivity(516 μA m M-1cm-2), and high stability(～97.8% current retention after 1000 cycles). Local structural investigations using synchrotron pair distribution function and high-resolution microscopic techniques reveal a strong structural correlation within short-to medium-range orders in the Pd41.25Ni41.25P17.5nanoparticles, which can be well retained after electrochemical cycling. These atomic-scale structural characteristics might be responsible for the high sensing performance. This study demonstrates the high applicability of Pd–Ni–P metallic glass nanoparticles as sensitive and stable non-enzymatic glucose sensors.

关键词： Nanoparticles

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双向视角下受助者心理困境及其化解路径

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心理科学 2024年第2期47卷 502-511页

作者：娄宇谢晓非北京大学心理与认知科学学院北京100080 行为与心理健康北京市重点实验室北京100080

利他行为由助人者发起,旨在使受助者获益。受助者的获益是衡量利他行为有效性的关键指标。然而,并非所有利他行为都使受助者获益。助人者帮助受助者解决现实难题,但若其帮助行为伴随对受助者心理的负性影响,受助者将陷入现实和心理的双... 详细信息

利他行为由助人者发起,旨在使受助者获益。受助者的获益是衡量利他行为有效性的关键指标。然而,并非所有利他行为都使受助者获益。助人者帮助受助者解决现实难题,但若其帮助行为伴随对受助者心理的负性影响,受助者将陷入现实和心理的双重困境。从助人者和受助者双向视角出发,有助于分析受助者心理困境的成因,发掘来自助人者和受助者两个视角的影响因素,并提出化解受助者心理困境的两条路径。未来研究可进一步厘清不同帮助类型对受助者心理的影响,增加对受助者个体和群体差异的关注,丰富对受助后人际互动和长期结果的探索。双向视角的观点也为提升公益和慈善实践的有效性提供启发。

关键词：利他行为受助者助人者视角差异

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我国“十四五”煤层气勘探开发新进展与前景展望

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中国石油勘探 2024年第1期29卷 1-13页

作者：吴裕根门相勇娄钰自然资源部油气资源战略研究中心

煤层气开发有助于推动我国早日实现碳达峰碳中和目标。我国煤层气开发已基本实现产业化,但受理论技术等因素制约,发展规模与丰富的资源条件不匹配。“十四五”以来,我国煤层气勘探开发取得5个方面的新进展:一是我国开始进入深层煤层气... 详细信息

煤层气开发有助于推动我国早日实现碳达峰碳中和目标。我国煤层气开发已基本实现产业化,但受理论技术等因素制约,发展规模与丰富的资源条件不匹配。“十四五”以来,我国煤层气勘探开发取得5个方面的新进展:一是我国开始进入深层煤层气规模开发新阶段,煤层气产量增速明显加快;二是深层煤层气勘探开发取得重大突破,极大拓展了产业发展空间;三是老气田低效区、薄煤层等难采资源增产改造效果显著;四是与“十三五”期间相比,攻关领域由中—浅层煤层气为主转为以深层煤层气为主,以水平井大规模分段压裂技术为代表的煤层气理论技术在地质认识、钻完井、压裂、排采四大关键环节均取得重大创新,产气效果明显提升;五是煤层气产业发展政策环境持续优化。初步研判,我国深层煤层气资源丰富,埋深大于1500m的煤层气资源量约是1500m以浅的资源量2倍以上;我国已探明煤层气储量以中—浅层为主,但采出程度仅为7%,剩余资源规模可观,而老气田还发育丰富的薄煤层气,已证实是现实接替资源。因此,深层煤层气的重大突破和老气田增产改造的成功成为引领我国煤层气产业加速发展的主要推动力,发展前景良好。在综合多家机构和专家研究结果的基础上,研究认为我国煤层气产量2025年有望达到100×10^(8)m^(3),2035年达到300×10^(8)m^(3)。但我国煤层气快速发展面临着深煤层、薄煤层等新领域煤层气地质理论认识有待深入系统研究,深层煤层气勘探开发工程技术仍处于攻关阶段,产业发展政策支持力度仍有待完善等挑战。因此,建议加强新领域煤层气风险勘探和选区评价、加强高效勘探开发理论技术攻关以及加强煤层气产业政策支持和发展引导。

关键词：深层煤层气薄煤层理论技术产业政策

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Fabricating polymer/HEA-hybrid topological lattice structure for enhanced mechanical properties

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Progress in Natural Science:Materials International 2022年第6期32卷 800-805页

作者： Wentao Zhang Zhongzheng Yao Sihan Zhang Sinan Liu Huiqiang Ying Jiacheng Ge Shu Fu yu lou Xiang Li Zhenduo Wu He Zhu Shuangqin Chen Si Lan Herbert Gleiter Institute of Nanoscience School of Materials Science and Engineering Nanjing University of Science and Technology School of Sciences Nanjing University of Science and Technology Center for Neutron Scattering and Physics Department City University of Hong Kong Dongguan Research Institute Shenzhen Research Institute City University of Hong Kong

Metamaterials such as architected lattice structures have aroused broad interest in being applied as mechanical supports for their lightweight and custom-shaped capabilities.Although various prior efforts have been devoted,a multiscale fabrication of micro-nano lattice structures without penalizing the mechanical properties is still a challenging but highly desirable task.Here we put forward a strategy to produce a mechanically enhanced micro-nano lattice structure by conformally depositing a CoCrFeNiTi high-entropy alloy(HEA) coating layer onto a three-dimensional(3D) printed polymer skeleton.The template for the 3D printing employs a six-membered tricapped trigonal prism(6M-TTP) structure derived from a medium-range order structure motif in amorphous alloys.The topological complexity of the 6M-TTP can substantially avoid the stress concentration by offering stress-release channels,while the HEA film incorporating with amorphous and nanocrystalline constituents can further reinforce the lattice architecture through its size hardening effect.Benefitting from the above,the fabricated polymer/HEA-hybrid lattice exhibits a high specific compressive strength(～0.055 MPa kg-1m3at a density below 500 kg m-3),a superior elastic recoverability(～70% recovery rate under>30% compression),an enhanced plasticity(40% strain) and a high specific modulus(0.135 MPa kg-1m3).Our strategy initiates a perspective way to fabricate multiscale micro-nano lattice structures with improved mechanical properties,which could be extended to widespread metamaterial research.

关键词： Nanocrystals

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Exact solutions of the nonlocal Gerdjikov-Ivanov equation

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Communications in Theoretical Physics 2021年第10期73卷 47-54页

作者： Miao Li Yi Zhang Rusuo Ye yu lou Department of Mathematics Zhejiang Normal UniversityJinhua 321004China

The nonlocal nonlinear Gerdjikov-Ivanov(GI)equation is one of the most important integrable equations,which can be reduced from the third generic deformation of the derivative nonlinear Schr?dinger equation.The Darboux transformation is a successful method in solving many nonlocal equations with the help of symbolic computation.As applications,we obtain the bright-dark soliton,breather,rogue wave,kink,W-shaped soliton and periodic solutions of the nonlocal GI equation by constructing its 2 n-fold Darboux transformation.These solutions show rich wave structures for selections of different parameters.In all these instances we practically show that these solutions have different properties than the ones for local case.

关键词： nonlocal Gerdjikov-Ivanov equation Darboux transformation rogue wave mixed soliton solutions

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Immunometabolism:A novel perspective of liver cancer microenvironment and its influence on tumor progression

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World Journal of Gastroenterology 2018年第31期24卷 3500-3512页

作者： Qi Zhang yu lou Xue-Li Bai Ting-Bo Liang Department of Hepatobiliary and Pancreatic Surgery the Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310009Zhejiang ProvinceChina

The initiation and progression of liver cancer, including hepatocellular carcinoma and intrahepatic cholangiocarcinoma, are dependent on its tumor microenvironment. Immune cells are key players in the liver cancer microenvironment and show complicated crosstalk with cancer cells. Emerging evidence has shown that the functions of immune cells are closely related to cell metabolism. However, the effects of metabolic changes of immune cells on liver cancer progression are largely undefined. In this review, we summarize the recent findings of immunometabolism and relate these findings to liver cancer progression. We also explore the translation of the understanding of immunometabolism for clinical use.

关键词： Cholangiocarcinoma Hepatocellular carcinoma Tumor microenvironment Local immune status Metabolite

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Intratumoral heterogeneity of hepatocellular carcinoma: From singlecell to population-based studies

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World Journal of Gastroenterology 2020年第26期26卷 3720-3736页

作者： Qi Zhang yu lou Xue-Li Bai Ting-Bo Liang Department of Hepatobiliary and Pancreatic Surgery the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina Key Laboratory of Pancreatic Disease of Zhejiang Province Hangzhou 310003Zhejiang ProvinceChina Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province Hangzhou 310003Zhejiang ProvinceChina Zhejiang Clinical Research Center of Hepatobiliary and Pancreatic Diseases Hangzhou 310003Zhejiang ProvinceChina

Hepatocellular carcinoma(HCC)is characterized by high heterogeneity in both intratumoral and interpatient manners.While interpatient heterogeneity is related to personalized therapy,intratumoral heterogeneity(ITH)largely influences the efficacy of therapies in individuals.ITH contributes to tumor growth,metastasis,recurrence,and drug resistance and consequently limits the prognosis of patients with HCC.There is an urgent need to understand the causes,characteristics,and consequences of tumor heterogeneity in HCC for the purposes of guiding clinical practice and improving survival.Here,we summarize the studies and technologies that describe ITH in HCC to gain insight into the origin and evolutionary process of heterogeneity.In parallel,evidence is collected to delineate the dynamic relationship between ITH and the tumor ecosystem.We suggest that conducting comprehensive studies of ITH using single-cell approaches in temporal and spatial dimensions,combined with population-based clinical trials,will help to clarify the clinical implications of ITH,develop novel intervention strategies,and improve patient prognosis.

关键词： Hepatocellular carcinoma Tumor heterogeneity Tumor microenvironment Single-cell analysis Local immunity

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