检索结果-内蒙古大学图书馆

Synergistic Nitrogen-Doping and Defect Engineering in Hard Carbon: Unlocking Ultrahigh Rate Capability and Long-Cycling Stability for Sodium-Ion Battery Anodes

引用

materials (Basel, Switzerland) 2025年第10期18卷 2397页

作者： Na Li Hongpeng Li Haibo Huang Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin 150040 China. School of Automotive Engineering Nantong Institute of Technology Nantong 226001 China. College of Mechanical Engineering Yangzhou University Yangzhou 225127 China.

Hard carbon (HC) anodes for sodium-ion batteries (SIBs) face challenges such as sluggish Na⁺ diffusion kinetics and structural instability. Herein, we propose a synergistic nitrogen-doping and defect-engineering strategy to unlock ultrahigh-rate capability and long-term cyclability in biomass-derived hard carbon. A scalable synthesis route is developed via hydrothermal carbonization of corn stalk, followed by controlled pyrolysis with urea, achieving uniform nitrogen incorporation into the carbon matrix. Comprehensive characterization reveals that nitrogen doping introduces tailored defects, expands interlayer spacing, and optimizes surface pseudocapacitance. The resultant N-doped hard carbon (NC-2) delivers a remarkable reversible capacity of 259 mAh g at 0.1 A g with 91% retention after 100 cycles. And analysis demonstrates a dual Na⁺ storage mechanism combining surface-driven pseudocapacitive adsorption (89% contribution at 1.0 mV s) and diffusion-controlled intercalation facilitated by reduced charge transfer resistance (56.9 Ω) and enhanced ionic pathways. Notably, NC-2 exhibits exceptional rate performance (124.0 mAh g at 1.0 A g) and sustains 95% capacity retention over 500 cycles at 1.0 A g. This work establishes a universal defect-engineering paradigm for carbonaceous materials, offering fundamental insights into structure-property correlations and paving the way for sustainable, high-performance SIB anodes.

关键词： N-doped anode defects hard carbon sodium-ion battery

来源：评论

学校读者我要写书评

暂无评论

Functionally modified zeolite powders for delivering antibacterial performance to cellulosic paper 10th

Functionally modified zeolite powders for delivering antibac...

引用

10th China Functional material technology and Industry Forum, CFMTIF 2018

作者： Lin, Yuan Xueren, Qian Key Laboratory of Bio-based Material Science and Technology of Ministry of Education Northeast Forestry University Harbin Heilongjiang Province150040 China

ISBN: (纸本)9783035714128

Zeolite powders were first treated with hydrochloric acid, then reacted with sodium chloride, and sodium zeolite (Na-Zeolite) powders were obtained. Further Antibacterial zeolite powders were prepared by loading metal ions such as, Ag+ and Zn2+, Ag+ and Cu2+, Zn2+and Cu2+, Ag+ and Cu2+and Zn2+, through ion exchange. The powders were characterized by minimum Inhibitory concentration (MIC), SEM/EDXA and XRD. Antibacterial paper with antibacterial zeolite powders as filler was fabricated. The results demonstrated that MIC of loading (Ag++Zn2+)zeolite was 125ppm against Staphylococcus aureus and Escherichia coli. MIC of loading (Ag++Cu2++Zn2+)zeolite was 62.5ppm against Candida albicans and Aspergillus Niger. By adding 6% of(Ag++Zn2+), (Ag++Cu2+), and(Ag++Cu2++Zn2+)antibacterial zeolite powders, respectively, antibacterial paper were prepared;and the antibacterial rate of these papers against Staphylococcus aureus, Escherichia coli, Candida albicans and Aspergillus Niger for 4h is close to 100%. © 2019 Trans Tech Publications Ltd, Switzerland

关键词： Ion exchange

来源：评论

学校读者我要写书评

暂无评论

Self-assembled Co-MOF@MXene heterostructures as bifunctional electrocatalysts for high-performance lithium-sulfur batteries

引用

materials Today Energy 2025年 52卷

作者： Xu-Dong Zhou Xiang-Xian Wu Hong-Jian Fu Pei-Xuan Lei Na Li Hong-Peng Li Hai-Bo Huang Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin 150040 PR China School of Automotive Engineering Nantong Institute of Technology Nantong 226001 PR China College of Mechanical Engineering Yangzhou University Yangzhou 225127 PR China

Lithium-sulfur (Li-S) batteries are hindered by the sluggish kinetics of polysulfide conversion and rapid capacity decay. Herein, we report a heterostructured electrocatalyst for addressing polysulfide shuttling and accelerating redox kinetics via self-assembly of cobalt-based metal-organic framework (Co-MOF, CM) nanoparticles onto MXene (MX) nanosheets. The 0D CM acts as catalytic nano-reactors for efficient polysulfide adsorption and bidirectional conversion, while the 2D MXene substrate ensures rapid electron/ion transport and structural stability. The hierarchical architecture, featuring abundant meso/macropores and strong interfacial Co-S/Ti-S interactions, synergistically suppresses polysulfide shuttling and lowers reaction barriers. The optimized CM@MX cathode delivers high-rate capability (1161.5 mAh g −1 at 0.1 C, 314.7 mAh g −1 at 5 C) and cycling stability (63% capacity retention after 250 cycles at 1 C). Mechanistic studies reveal accelerated sulfur redox kinetics enabled by dual-active sites and optimized Li 2 S nucleation/dissolution dynamics. This work provides a scalable heterostructure design paradigm for high-performance Li-S batteries.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A spontaneously sustainable bioinspired interfacial evaporation driven power generation strategy

Research Square

引用

Research Square 2021年

作者： Sun, Zhuangzhi Li, Zhaoxin Han, Changlong Jing, Mingxing Yu, Haipeng Wang, Zuankai Province Key Laboratory of Forestry Intelligent Equipment Engineering College of Mechanical and Electrical Engineering Northeast Forestry University Harbin150000 China Key Laboratory of Bio-based Material Science & Technology Ministry of Education Northeast Forestry University Harbin150000 China Department of Mechanical and Biomedical Engineering City University of Hong Kong Hong Kong

In nature, liquid evaporation occurs everywhere all the time. This low-grade energy absorption to drive liquid evaporation is greatly potential for sustainable spontaneously power generation. Here, a natural liquid evaporation strategy of interfacial evaporation driven nanogenerator (IENG) is developed in this work. Coupled by the phonon wind and a fluctuating Coulomb field, an induced direct current is generated. Simultaneously, inspired by the light-trapping properties of moth eye, a simple and efficient BLT-IENG including a hierarchical surface of bionic light-trapping and electrospinning perovskite conductivity with an enhanced thermally insulating and water storage capability is designed. This enhancement of the output performance is greatly attributed to the improvement of the interfacial evaporation characteristics driven by natural solar and wind energies. Hence, our BLT-IENG achieves a breakthrough in the unit area open-circuit voltage in the marine environment, which is improved by a factor of 7.6 over the currently reported average value. This work provides an unexplored strategy for multi-energies inspired natural interfacial evaporation driven power generation. © 2021, CC BY.

关键词： Nanogenerators

来源：评论

学校读者我要写书评

暂无评论

biomimetic construction of oxygen vacancy-rich In 2 O 3 /In 2 S 3 @C heterostructures with built-in electric field for boosting bidirectional regulation of polysulfides in lithium-sulfur batteries

引用

Chemical Engineering Journal 2025年 516卷

作者： Peixuan Lei Xudong Zhou Xiangxian Wu Hongjian Fu Hongpeng Li Haibo Huang Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin 150040 PR China State Key Laboratory of Utilization of Woody Oil Resource Northeast Forestry University Harbin 150040 PR China School of Automotive Engineering Nantong Institute of Technology Nantong 226001 PR China College of Mechanical Engineering Yangzhou University Yangzhou 225127 PR China

Lithium-sulfur (Li-S) batteries are plagued by polysulfide shuttling and sluggish sulfur redox kinetics, while previously reported heterojunction-based cathodes often suffer from ill-defined interfaces, inadequate active sites, and insufficient mechanistic understanding of interfacial charge modulation. Herein, we report a bio-templated In 2 O 3 /In 2 S 3 @C heterojunction cathode engineered with a built-in electric field (BIEF) to address these challenges. The BIEF, arising from Fermi-level alignment between In 2 S 3 and In 2 O 3 , drives directional electron transfer, reducing polysulfide conversion barriers by 1.2 eV. The bacterial cellulose derived carbon framework synergizes strong lithium polysulfides chemisorption ( via In 2 O 3 oxygen vacancies), metallic conductivity ( via In 2 S 3 ), and mechanical resilience against sulfur volume expansion. The optimized cathode delivers a high initial capacity of 1325.5 mAh g −1 at 0.1 C and retains 753.1 mAh g −1 at 2 C with ultralow decay (0.074% per cycle over 200 cycles). Density functional theory calculations validate a record Li 2 S 6 binding energy (−3.08 eV) and BIEF-enhanced charge transfer kinetics. This work resolves critical heterojunction design challenges, offering a scalable bioinspired blueprint for high-energy–density batteries.

关键词： Catalysts In2O3/In2S3 heterojunction Lithium-sulfur battery Polysulfide regulation Reaction kinetics

来源：评论

学校读者我要写书评

暂无评论

Effect of the atomic mass mismatch in nanopillars on surface localization

Thermal Advances

引用

Thermal Advances 2024年 1卷

作者： Zhuo Zhao Haobo Fan Yiyi Li Meng Yuan Daxin Liang Jian Zhang Key Laboratory of Bio-Based Material Science & Technology Ministry of Education Northeast Forestry University Harbin 150040 China Yangtze Delta Region Academy of Beijing Institute of Technology (Jiaxing) Jiaxing 314019 China School of Astronautics Harbin Institute of Technology Harbin 150001 China ChinaState Key Laboratory of Advanced Nuclear Energy Technology Nuclear Power Institute of China Chengdu 610213 China CNNC Key Laboratory of Nuclear Reactor Thermal and Hydraulic Engineering Nuclear Power Institute of China Chengdu 610213 China

In recent years, nanophononic metamaterials (NPMs) have attracted great interest from researchers. Theoretical calculations and experimental studies have revealed the mechanism of reducing thermal conductivity through localized resonant hybridization. In addition, researchers have studied the effects of nanopillar height, spacing, and atomic mass in nanopillars on surface localization. The atomic mass mismatch in nanopillars has important application in practice. Taking the silicon-based nanopillar structure as an example, this paper studies the effects of atomic mass mismatch in nanopillars on surface localization effect and heat flux. The results show that atomic mass mismatch in nanopillars can enhance the surface localization effect, and the greater the difference in atomic mass in nanopillars, the stronger the surface localization. Finally, the effect of atomic mass mismatch in nanopillars on heat flux was calculated by nonequilibrium molecular dynamics. The results of this study can provide useful guidance for the design of nanoscale heat flux regulation devices.

关键词： Crystalline silicon Phononic metamaterials Atomic mass mismatch Phonon localization Molecular dynamics

来源：评论

学校读者我要写书评

暂无评论

Environmental load of solid wood floor production from larch grown at different planting densities based on a life cycle assessment

引用

Journal of Forestry Research 2018年第5期29卷 1443-1448页

作者： Siying Hu Xin Guan Minghui Guo Jinman Wang Key Laboratory of Bio-Based Material Science and Technology of the Ministry of Education Northeast Forestry University College of Material Engineering Fujian Agriculture and Forestry University

As one of the main structural units in a building,a solid wood floor has significant strategic research value for low-carbon energy *** the production line of a solid larch wood floor as a case study,we assessed the environmental load during production based upon a life cycle *** GaBi 6.0 software,we analyzed the associated carbon sequestration during floor production,with the initial planting density serving as the disturbance factor in a modular *** results indicated that the cutting and finishing steps have relatively intense,negative influences on the environment,whereas transportation,ripping,and trimming do ***,recycling biomass waste has the potential to reduce greenhouse gas *** the initial planting density was 3.0×3.0 m,carbon sequestration was relatively *** the emissions of freshwater pollutants,volatile organic compounds,and fine particulate matter（matter with a 2.5-μm diameter） were comparatively high,the reduction of greenhouse gas emissions was still excellent at this planting density.

关键词： Environmental effect Larch Life cycle assessment Planting density Solid wood floor

来源：评论

学校读者我要写书评

暂无评论

[email protected] @SnO 2-x sandwich structure with electrostatic repulsion effect and oxygen deficiency: enhanced photocatalytic hydrogen evolution activity and inhibited photo-corrosion

引用

Chemical Engineering Journal 2022年 434卷

作者： Xing Liu Tingting Zhang Yudong Li Jian Zhang Yunchen Du Yulin Yang Yanqiu Jiang Kaifeng Lin MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 PR China Key Laboratory of Bio-based Material Science & Technology Ministry of Education Northeast Forestry University Harbin 150040 China

The activity and stability of photocatalysts are usually restricted to photo-corrosion issues. Here, an efficient electrostatic repulsion and anchor strategy via constructing a [email protected] @SnO 2-x sandwich structure with numerous oxygen vacancies through a simple chemical bath deposition approach. During the formation process, the CdS nanorods are wrapped by the catechol fragments from polydopamine (PDA) and display an electronegative surface. This strong electrostatic repulsion can effectively repel S 2- , thereby effectively preventing S 2- from being separated from CdS and being oxidized by holes or oxygen. Furthermore, the PDA employed as an interlayer of the heterojunction sandwich structure can fix the multivalent metal ions, such as Cd 2+ and Sn 4+ ions on CdS and SnO 2-x, which can be used as a bridge for electronic transmission. More importantly, the as-prepared SnO 2-x nanocrystals are found to possess a large amount of oxygen vacancies, which can effectively control the electronic structure of the catalyst, enhance the electron enrichment effect, promote the absorption of visible light and change the charge transfer ability. More importantly, the accumulation of [email protected] @SnO 2-x (411.37 mmol) photocatalytic hydrogen evolution is 34.3 times than pristine CdS (12.0 mmol) within 5 h, and the catalytic activity remains stable after 10 cycles. Photoelectrochemical characterization, Scanning Kelvin Probe (SKP), Finite Difference Time Domain (FDTD) simulations verified the mechanism of enhanced photocatalytic activity. Herein, this work displays a novel structure and mechanism to enhance the stability of sulfide semiconductors, which may further open a new path in the structural control strategy of photocatalysts.

关键词： Hydrogen evolution Oxygen vacancies Photocatalysis FDTD simulations Corrosion resistant

来源：评论

学校读者我要写书评

暂无评论

The properties of flax fiber reinforced wood flour/high density polyethylene composites

引用

Journal of Forestry Research 2018年第2期29卷 524-531页

作者： Jingfa Zhang Haigang Wang Rongxian Ou Qingwen Wang Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education) Northeast Forestry University College of Materials and Energy South China Agricultural University

Flax fiber(FF) was used to reinforce wood flour/high density polyethylene composites(WF/PE).WF/PE particles were uniformly mixed with FF via high-speed mixing and then extruded with a single screw extruder to prepare FF reinforced WF/PE composites(FF/WF/PE).Mechanical testing,dynamic mechanical analysis,scanning electron microscopy(SEM),creep measurement and Torque rheology were used to characterize the resulting *** results indicate that the mechanical performance of the composites could be remarkably improved by adding a limited amount of *** flexural strength and modulus increased by 14.6 and 51.4%,respectively(FF content of 9 wt%),while the unnotched impact strength could be increased by 26.5%(FF content of12 wt%).The creep resistance and toughness of thecomposite was markedly improved without changing the plastic content of the composite material.

关键词： Wood-plastic composites Flax fiber Reinforcement Processing Mechanical property Creep resistance

来源：评论

学校读者我要写书评

暂无评论

Acetal-thiol Click-like Reaction: Facile and Efficient Synthesis of Dynamic Dithioacetals and Recyclable Polydithioacetals

引用

Angewandte Chemie 2024年第31期136卷

作者： Shuai Du Shuaiqi Yang Binbo Wang Pengyun Li Prof. Dr. Jin Zhu Prof. Dr. Songqi Ma Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 P. R. China Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 P. R. China

Dithioacetals are heavily used in organic, material and medical chemistries, and exhibit huge potential to synthesize degradable or recyclable polymers. However, the current synthetic approaches of dithioacetals and polydithioacetals are overwhelmingly dependent on external catalysts and organic solvents. Herein, we disclose a catalyst- and solvent-free acetal-thiol click-like reaction for synthesizing dithioacetals and polydithioacetals. High conversion, higher than acid catalytic acetal-thiol reaction, can be achieved. High universality was confirmed by monitoring the reactions of linear and cyclic acetals (including renewable bio-sourced furan-acetal) with aliphatic and aromatic thiols, and the reaction mechanism of monomolecular nucleophilic substitution (S N 1) and auto-protonation (activation) by thiol was clarified by combining experiments and density functional theory computation. Subsequently, we utilize this reaction to synthesize readily recyclable polydithioacetals. By simple heating and stirring, linear polydithioacetals with w of ~110 kDa were synthesized from acetal and dithiol, and depolymerization into macrocyclic dithioacetal and repolymerization into polydithioacetal can be achieved; through reactive extrusion, a semi-interpenetrating polymer dynamic network with excellent mechanical properties and continuous reprocessability was prepared from poly(vinyl butyral) and pentaerythritol tetrakis(3-mercaptopropionate). This green and high-efficient synthesis method for dithioacetals and polydithioacetals is beneficial to the sustainable development of chemistry.

关键词： dynamic bond dithioacetal recyclable polymer closed-loop recycle covalent adaptable networks

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：