检索结果-内蒙古大学图书馆

Unraveling the reaction reversibility and structure stability of nickel sulfide anodes for lithium ion batteries

Journal of Energy Chemistry 2023年第5期80卷 392-401,I0010页

作者： Yu Huang Chunyuan Liang Yueling Cai Yi Zhou Bingkun Guo Jipeng Cheng Heguang Liu Peng Wang Qianqian Li Anmin Nie Hongtao Wang Jinsong Wu Tongyi Zhang Materials Genome Institute Shanghai UniversityShanghai 200444China Center for X-mechanics Zhejiang UniversityHangzhou 310027ZhejiangChina School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027ZhejiangChina School of Materials Science and Engineering Xi'an University of TechnologyXi'an 048ShaanxChin Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200444China Center for High Pressure Science State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004HebeiChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Nanostructure Research CenterWuhan University of TechnologyWuhan 430070HubeiChina

The electrochemical performance of lithium-ion batteries,*** capacity and cyclability,is primarily determined by chemical reversibility and structural stability of the electrodes in *** we have investigated the fundamental reaction behaviors of nickel sulfide(NixSy)as lithium-ion battery anodes by in-situ *** find that Ni_(3)S_(2)is the electrochemically stable phase,which appears in the first cycle of the *** the second cycle,conversion between Ni_(3)S_(2)and Li_(2)S/Ni is the dominant electrochemical *** lithiation,the NixSynanoparticles evolve into a mixture of Ni nanocrystals embedded in Li_(2)S matrix,which form a porous structure upon full lithiation,and with the recrystallization of the Ni_(3)S_(2)phase in delithiation,a compact and interconnected network is *** stability in cycles is susceptible to particle size and substrate *** substrate can certainly improve the tolerance for size-dependent pulverization of *** NixSynanoparticle exceeds the critical size value,the morphology of the particle is no longer well maintained even under the constraints of the carbon *** work deepens the understanding of electrochemical reaction behavior of conversiontype materials and helps to rational design of high-energy density battery anodes.

关键词： Nickel sulfide anodes Reaction reversility Structure rebuilding In-situ TEM Lithium-ion battery

来源：评论

学校读者我要写书评

暂无评论

Playdough-like carbon electrode: A promising strategy for high efficiency perovskite solar cells and modules

引用

eScience 2024年第2期4卷 101-107页

作者： Aodong Zhu Lin Chen Ao Zhang Chenpu Zhu Xinxin Zhang Jie Zhong Fuzhi Huang Yi-Bing Cheng Junyan Xiao School of Materials Science and Engineering Wuhan University of Technology122 Luoshi RoadWuhanHubeiChina State Key Laboratory of Advanced Technologies for Materials Synthesis and Processing Wuhan University of Technology122 Luoshi RoadWuhanHubeiChina School of Chemistry and Chemical Engineering Huazhong University of Science and Technology1037 Luoyu RoadWuhanHubeiChina Research Centre for Advanced Thin Film Photovoltaics Wuhan University of Technology122 Luoshi RoadWuhanHubeiChina Jinan Municipal Bureau of Industry and Information Technology JinanShandongChina

Carbon-based perovskite solar cells(C-PSCs)are promising candidates for large-scale photovoltaic applications due to their theoretical low cost and high ***,the fabrication of high-performance C-PSCs with large-area electrodes remains *** this work,we propose a novel playdough-like graphite putty as top electrode in the perovskite *** electrode with soft nature can form good contact with the holetransporting layer and the conductive substrate at room temperature by a simple pressing technique,which facilitates the fabrication of both small-area devices and perovskite solar *** this preliminary research,the corresponding small devices and modules can achieve efficiencies of 20.29%(~0.15 cm^(2))and 16.01%(~10 cm^(2)),***,we analyze the limitations of the optical and electrical properties of this playdough-like graphite electrode on the device performance,suggesting a direction for further improvement of C-PSCs in the future.

关键词： Perovskite solar cells Large-area module Carbon electrode Conductive playdough

来源：评论

学校读者我要写书评

暂无评论

In Vitro Angiogenic Behavior of HUVECs on Biomimetic SF/SA Composite Scaffolds

引用

Journal of Wuhan University of technology(materials Science) 2021年第3期36卷 456-464页

作者： KOMBO Omar Ramadhan WANG Xinyu SHEN Ying LIU Jiawei DONG Xianzhen SHAO Qi LONG Yanpiao DONG Kuo BAKHET Shahd Fateh El-Rahman Elkhider LI Binbin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Biomedical Materials and Engineering Research Center of Hubei Province Wuhan 430070China

The 60Fc and 70Fc SF/SA blend scaffolds were prepared to mimic the functions of the native ECM for skin *** Umbilical Vein Endothelial Cells(HUVECs)were used to examine the cell cytotoxicity,adhesion,growth factors secretion and the gene expression of associated angiogenic *** proliferation,adhesion and live-dead analyses showed that HUVECs could better attach,grow,and proliferate on the 70Fc scaffolds compared with 60Fc scaffolds and unmodified ***,the 70Fc scaffolds showed higher levels of specific angiogenic proteins and genes expression as *** study suggests that the involvement of higher composition of SF(about 70%)than that of SA on the blended scaffolds could be advantageous as it is more suitable to promote angiogenesis,which is potential for vascularization during skin repair.

关键词： vascularization scaffold HUVECs tissue engineering

来源：评论

学校读者我要写书评

暂无评论

Abnormal Shrinkage Behavior and Sintering Mechanism of Alumina Nanoparticles

SSRN

引用

SSRN 2024年

作者： Wang, Dangqiang Li, Jun Liu, Lisheng Mei, Hai Zhang, Jinyong Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics Wuhan University of Technology Wuhan China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China

In ultrafast high-temperature sintering process, the green body can be rapidly densified during the heating stage, and many experimental researches prove that sintering temperature and heating rate play an important role. Thus, to further explore the synergistic effect of sintering temperature and heating rate on densification process and reveal the underlying mechanism, equal-sized and unequal-sized alumina nanoparticles are selected to perform molecular dynamic simulations, and sintering behaviors, microstructure evolution, atomic migration and diffusion activation entropy are monitored during heating stages. Results show that high temperature leads to the amorphization of crystal structure of nanoparticles, and fast heating rate retains large sintering driving force at high temperature, making it easier for atoms to cross the migration barrier, thereby, in addition to the enhancement of surface, lattice and interface diffusion, the appearance of viscous flow accelerate the polymerization process of the nanoparticles, leading to two different abnormal shrinkage behaviors. These findings are expected to lay the theoretical foundation for the development and popularization of ultrafast high-temperature sintering (UHS) technology. © 2024, The Authors. All rights reserved.

关键词： Heating rate

来源：评论

学校读者我要写书评

暂无评论

Enhanced polysulfide redox kinetics by niobium oxynitrides via insitu adsorptive and catalytic effect in wide temperature range

引用

Nano Research 2022年第7期15卷 6200-6207页

作者： Benben Wei Chaoqun Shang Qiao Cu Le Hu Xuelian Fu Guofu Zhou Xin Wang School of Materials Science and Engineering&Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Wuhan Institute of TechnologyWuhan 430205China Faculty of Materials Science and Chemistry China University of GeosciencesWuhan 430074China Guangdong Provincial Key Laboratory of Optical Information Materials and Technology&South China Academy of Advanced Optoelectronics South China Normal UniversityGuangzhou 510006China School of Materials Science and Engineering&State Key Laboratory of Material Processing and Die and Mold Technology Huazhong University of Science and TechnologyWuhan 430074China

The development of Li-S batteries(LSBs)is hindered by the low utilization of S species and sluggish redox reaction *** metal oxides always possess high adsorption to polar S species,while conductive metal nitrides show fast electron transport and ensure fast redox reaction of S *** combination merits of metal oxides and metal nitrides in one provide an effective strategy to improve the electrochemical performance of *** this work,defect design of niobium oxynitrides highly dispersed on graphene(NbON-G)is evaluated as effective trapper and catalyst for S *** to the effective structural merits including enriched active sites,alleviated volume variation,defect modulated electronic property,and in-situ chemisorption and catalytic conversion of soluble lithium polysulfides(LiPSs),the LSBs with NbON-G modified separator show remarkably enhanced performance compared to NbN-G and Nb_(2)O_(5)-***,even at low temperature of−40°C,the LSBs with NbON-G can operate for 1,000 cycles with 0.04%capacity decay per cycle(Rate:2 C).

关键词： lithium polysulfides Li-S batteries niobium oxynitrides catalyst low temperature

来源：评论

学校读者我要写书评

暂无评论

Unraveling the reaction mechanisms of electrode materials for sodiumion and potassium‐ion batteries by in situ transmission electron microscopy

引用

Interdisciplinary materials 2022年第2期1卷 196-212页

作者： Hong Wang Fang Liu Ruohan Yu Jinsong Wu Nanostructure Research Center(NRC) Wuhan University of TechnologyWuhanHubeiChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhanHubeiChina School of Mathematics and Physics Jingchu University of TechnologyJingmenHubeiChina

Sodium ion batteries(SIBs)and potassium ion batteries(PIBs)have caught numerous attention due to the low cost and abundant availability of sodium and ***,their power density,cycling stability and safety need further improvement for practical *** on the reaction mechanisms and structural degradation when cycling are of great *** situ transmission electron microscopy(TEM)is one of the most significant techniques to understand and monitor electrochemical processes at an atomic scale with real-time *** this review,the current progress in unraveling reaction mechanisms of electrode materials for SIBs and PIBs via in situ TEM is ***,the importance of in situ TEM is ***,based on the three types of electrochemical reaction,i.e.,intercalation reac-tion,conversion reaction and alloying reaction,the structural evolution and reaction kinetics at atomic resolution,and their relation to the electrochemical performance of electrode materials are reviewed and described in ***-nally,future directions of in situ TEM for SIBs and PIBs are ***,the in‐depth understanding revealed by in situ TEM will give an instructive guide in rational design of electrode materials for high performance electrode materials of SIBs and PIBs.

关键词： in situ transmission electron microscopy potassium ion batteries sodiumion batteries

来源：评论

学校读者我要写书评

暂无评论

Potential-Dependent Activities in Interpreting the Reaction Mechanism of Dual-Metal Atom Catalysts for Li-Co2 Batteries

SSRN

引用

SSRN 2024年

作者： Liu, Xiaolin Zhou, Mengjun Liao, Xiaobin Zhao, Yan State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China State Key Laboratory of Silicate Materials for Architectures Wuhan University of Science and Technology China

The utilization of CO2 electrochemistry in energy storage has been considered as a promising power source due to its high theoretical energy density, high electrochemical potential, and ability to fix CO2. However, the low efficiency and poor reversibility of Li-CO2 evolution significantly impede the applications of Li-CO2 batteries. Herein, first-principles calculations were employed to investigate the 21 M1M2N4C active sites and explore the catalytic mechanism for the Li-CO2 evolution reaction. The adsorption and activation of CO2 on the thermodynamically stable DACs show that the TM atoms in M1M2N4C center sites with decreasing d-band center appeared to increase CO2 adsorption energy. Among the active sites, the MoMoN4C shows the most robust activation interaction with CO2 due to its high d-center and strong d-p orbital coupling. The implicit solvent CEP simulations verify the effects of dual-atom sites on the products' activities and selectivity by searching the possible reaction pathways toward the battery-discharging processes in the ether electrolyte. The decomposition of *Li2CO3 was simulated by the NEB calculations. The results prove that the MoMoN4C active site can boost the reaction dynamics and exhibit high reversibility for the Li-CO2 battery. © 2024, The Authors. All rights reserved.

关键词： Carbon dioxide

来源：评论

学校读者我要写书评

暂无评论

Threee-dimensionally ordered macroporous materials for pollutants abatement,environmental sensing and bacterial inactivation

引用

中国科学：化学（英文版） 2023年第7期66卷 1886-1904页

作者： Yang Ding Chun-Hua Wang Jia-Song Zhong Qi-Nan Mao Run-Tian Zheng Yun Hau Ng Ming-Hui Sun Soumyajit Maitra Li-Hua Chen Bao-Lian Su Center of Advanced Optoelectronic Materials College of Materials and Environmental EngineeringHangzhou Dianzi UniversityHangzhou 310018China Laboratory of Inorganic Materials Chemistry(CMI) University of NamurNamur B-5000Belgium School of Energy and Environment City University of Hong KongHong Kong 999000China Center of Advanced Optoelectronic Materials College of Materials and Environmental EngineeringHangzhou Dianzi UniversityHangzhou 310018China Laboratory of Inorganic Materials Chemistry(CMI) University of NamurNamur B-5000Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Materials University of OxfordOxford OX1 3PHUK Laboratory of Inorganic Materials Chemistry(CMI) University of NamurNamur B-5000Belgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Clare Hall University of CambridgeCambridge CB2 1EWUK

Owing to their facile reactants migration channels,large surface area,maximized exposure of reaction sites and efficient light utilization,three-dimensionally ordered macroporous(3DOM)materials have been extensively adopted in environmental fields such as pollutants removal,environmental detection as well as bacterial *** this review,the up-to-date 3DOM materials,the corresponding synthesis protocols and the related environmental applications involving photo/electrocatalytic pollutants decomposition,thermocatalytic volatile organic compounds(VOCs)elimination,hazardous substances sensing and bacteria inactivation are completely ***,the inherent advantages and mechanisms of 3DOM materials in different environmental utilization are thoroughly demonstrated and ***,the improved performance of environmental applications and the methods of fabricating 3DOM materials are correlated in depth,being favorable for readers to obtain the fundamental knowledge and to motivate some innovative thoughts for modifying 3DOM materials with further elevated environmental remediation ***,the current difficulties and prospects of 3DOM materials for large-scale and commercial applications are *** critical review is anticipated to promote the optimization of 3DOM materials and to ripen the related environmental remediation techniques.

关键词： 3DOM environmental remediation catalysis VOCs disinfection

来源：评论

学校读者我要写书评

暂无评论

A novel method of long-term aging prediction for proton exchange membrane fuel cell under the dynamic load cycling condition

引用

International Journal of Hydrogen Energy 2024年

作者： Yu, Xiaoran Yang, Yang Liu, Yanjun Zhu, Wenchao Xie, Changjun School of Automation Wuhan University of Technology Wuhan430070 China Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Hubei Wuhan430073 China

Estimating the remaining useful life (RUL) of proton exchange membrane fuel cell (PEMFC) is beneficial for deploying control strategies. Long-term aging prediction forms the foundation for RUL estimation, but currently long-term aging prediction and RUL estimation for dynamic load cycling conditions have not been achieved, and uncertainty during the prediction and estimation processes has not been considered. Therefore, in this study, a novel hybrid prediction framework based on Bayesian gated recurrent unit, model uncertainty and state estimation (MUSE), and convolutional neural network-long short-term memory (CNN-LSTM) is proposed. First, MUSE is used to simultaneously quantify the state of health (SOH) and predict aging trend to generate a guiding sequence Next, based on the sequence and historical experimental data, CNN-LSTM is trained and multi-step prediction is performed. Subsequently, Bayesian gated recurrent unit is employed to fuse the MUSE-based prediction sequence with the CNN-LSTM-based prediction, and confidence interval is provided. This results in a novel model and data-driven long-term aging prediction structure. Finally, SOH during the prediction stage is evaluated by MUSE and RUL is estimated. The proposed method is validated using experimental data under a dynamic load cycling condition, demonstrating accurate long-term aging prediction and RUL estimation while considering uncertainty. © 2024

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

Extended Phase Homogeneity and Improved Out-of-Plane Charge Transfer in Sb and Te Co-Alloyed N-Type Bise Layered Compound with Extraordinary Thermoelectric Performance

SSRN

引用

SSRN 2023年

作者： Yang, Xinru Xie, Chenghao Sun, Jinchang Xu, Weibin Li, Songlin Tang, Xinfeng Tan, Gangjian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

BiSe is a promising n-type layered thermoelectric compound near room temperature. However, its full potential is not realized because of its overall high electron density and inferior interlayer charge transport. In this study, we demonstrate that these drawbacks are well addressed by a feasible Sb and Te co-alloying approach. Sb, preferably substituting Bi atoms in the Bi2Se3 quintuplet layer, effectively neutralizing excess electrons of BiSe by suppressing positively charged Se vacancies. On the other hand, Te exclusively replaces Se, and promotes interlayer charge transfer by increasing chemical bond covalency. In addition, Te alloying significantly impedes phonon propagation of BiSe by introducing considerable size and mass disorders. More importantly, it is found that co-alloying expands the phase homogeneity of BiSe, which further intensifies the respective functions of Sb and Te alloying. As a consequence, a peak ZT value of 0.6 at 425 K is realized in the sample Bi0.6Sb0.4Se0.6Te0.4, which is 2.5 times that of pristine BiSe. Our work suggests that Sb and Te co-alloyed BiSe is a robust candidate for thermoelectric application near room temperature. © 2023, The Authors. All rights reserved.

关键词： Charge transfer

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：