检索结果-内蒙古大学图书馆

Industrial Chemistry & Materials 2024年第4期2卷 634-643页

作者： Jiayao Cui Junyong Min Hao Wang Jianglan Shui Lishan Peng Zhenye Kang Jieyuan Liu Qingjun Chen Shuo Bai Yanrong Liu CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and EngineeringBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Longzihu New Energy Laboratory Zhengzhou Institute of Emerging Industrial TechnologyHenan UniversityZhengzhou 450000China School of Materials Science and Engineering Beihang UniversityBeijingChina Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou 341000China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan Provincial Key Lab of Fine ChemistrySchool of Chemical Engineering and TechnologyHainan UniversityHaikou 570228China

Developing single-atom Fe–N_(4)/C catalysts is crucial for the large-scale implementation of proton exchange membrane fuel cells(PEMFCs).While Fe–N_(4)/C catalysts are inherently active in accelerating the slow ORR process,their performance is still inferior to that of Pt/***,a trace Co-doped Fe single-atom catalyst(Fe(tCo)–N–C)containing more active Fe_(2)N_(8) sites has been ***,compared with typical FeN4 sites in an Fe–N–C electrocatalyst,the Fe_(2)N_(8) sites generate a larger Fe–N bond length due to *** elongated Fe–N bond in Fe_(2)N_(8) lowers the d-band center and charge density of iron sites,enhancing the ORR process by facilitating the formation of*OOH and generation and desorption of****(tCo)–N–C manifested excellent acidic and alkaline ORR activity,with a half-wave potential(E_(1/2))of 0.80 V in HClO_(4) solution and 0.89 V in KOH *** importantly,high peak power densities(Pmax)were realized by applying Fe(tCo)–N–C in PEMFCs,with the Pmax reaching 890 mW cm^(-2) in H_(2)–O_(2) and 380 mW cm^(-2) in H_(2)–***,trace Co dopants in the catalyst improved carbon graphitization and provided high ORR catalytic *** research introduces an innovative approach to engineering highly active Fe_(2)N_(8) sites,providing valuable insights for the sustainable progress of PEMFC technology.

关键词： Proton exchange membrane fuel cells Oxygen reduction reaction Platinum-group-metal-free catalysts Single-atom catalysts Bimetallic active sites

来源：评论

学校读者我要写书评

暂无评论

Synergetic catalytic effects by strong metal-support interaction for efficient electrocatalysis

引用

eScience 2024年第6期4卷 1-21页

作者： Xue Teng Di Si Lisong Chen Jianlin Shi State Key Laboratory of Petroleum Molecular&Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China State Key Laboratory of High Performance Ceramics and Superfine Microstructures Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Institute of Eco-Chongming Shanghai 202162China

Strong metal–support interaction(SMSI),namely the strong electronic and structural interaction between metal nanoparticles and supports,one of the most typical synergetic catalytic effects in composite catalysts,has been found critically important in the design of catalyst for thermocatalysis in the ***,however,important and great progress of SMSI-based synergetic effects has been made in electrocatalysis,such as electrocatalyst design and electrocatalytic mechanism *** better understand the nature of the synergetic effect assisting the further development of electrocatalysts,a comprehensive and in-depth overview highlighting and discussing the recent advances of SMSI in electrocatalysis is necessary and highly desirable but still ***,this review firstly presents various strategies of designing and constructing composite catalysts featuring *** from the perspectives of electrocatalysis,the characterization techniques towards the electron structure,local interfacial and morphological features and active sites for SMSI-based electrocatalysts,have been summarized in ***,the recent advances in the design of single-and bi-functional electrocatalysts featuring SMSI-based synergetic catalytic effects,and the key roles of SMSI during the electrocatalytic reactions are ***,the challenges and prospects are discussed to highlight the key remaining issues in the future development of SMSI-based electrocatalysts.

关键词： Strong metal-support interaction Synergetic catalytic effects Synthetic methods Characterization technologies Single-and bi-functional electrocatalysis

来源：评论

学校读者我要写书评

暂无评论

Hollow multishelled structural TiN as multi-functional catalytic host for high-performance lithium-sulfur batteries

引用

Nano Research 2023年第11期16卷 12745-12752页

作者： Wei Xu Ruyi Bi Mei Yang Jiangyan Wang Ranbo Yu Dan Wang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBeijing 100190China

Lithium-sulfur(Li-S)battery has attracted extensive attention because of its ultrahigh theoretical energy density and low ***,its commercialization is seriously hampered by its short cycling life,mainly due to the shuttle of soluble lithium polysulfides(LiPSs)and poor rate capability due to sluggish reaction *** significant efforts have been devoted to solving the problems,it is still challenging to simultaneously address all the ***,titanium nitride hollow multishelled structure(TiN HoMS)sphere is designed as a multi-functional catalytic host for sulfur ***,with good conductivity,can effectively catalyze the redox conversion of S and LiPSs,while its surficial oxidation passivation layer can strongly anchor ***,HoMS enables TiN nanoparticle subunits to expose abundant active sites for anchoring and promoting conversion of LiPSs,while the multiple shells provide physical barriers to restrict the shuttle *** addition,HoMS can buffer the volume expansion of sulfur and shorten the charge transport *** a result,the sulfur cathode based on triple-shelled TiN HoMS exhibits an initial specific capacity of 1016 mAh·g-1 at a high sulfur loading of 2.8 mg·cm-2 and maintains 823 mAh·g-1 after 100 ***,it shows a four times higher specific capacity than the one without TiN host at 2 C.

关键词： lithium-sulfur batteries titanium nitride hollow multishelled structure shuttle effect rate capability

来源：评论

学校读者我要写书评

暂无评论

Hollow Multishelled Structure Reviving Lithium Metal Anode for High-energy-density Batteries

引用

Chemical Research in Chinese Universities 2024年第3期40卷 428-436页

作者： WANG Haoyu WEI Peng WANG Jiangyan WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeIjing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBeijing 100190P.R.China

Due to its highest theoretical capacity and its lowest redox potential,lithium(Li)metal has been considered as the ultimate anode choice for high-energy-density rechargeable ***,its commercialization is severely hindered by its poor cyclic stability and safety *** material structure design concepts have been raised to address these failure models,wherein,hollow structure has shown great power in solving the ***,a hollow multishelled structure(HoMs)featured with two or more shells has been proved to be more efficient to improve Li metal anode than their single-shelled ***,this up-to-date review summarizes the recent progress of the application of HoMs in Li metal anode,including their adoption as Li metal host,artificial solid electrolyte interphase film,electrolyte additive,solid state electrolyte,*** offers unique advantages,such as suppressing Li dendrite growth,stabilizing electrode-electrolyte interface,and improving overall battery *** research directions are outlined,emphasizing the need for multifunctional integrated smart HoMS design and large-scale fabrication of HoMS through low-cost accurate method to further advance the commercialization of Li metal batteries.

关键词： Hollow multishelled structure Lithium metal anode Solid electrolyte interphase Coulombic efficiency Cyclic stability

来源：评论

学校读者我要写书评

暂无评论

Hollow Multi-shelled Structure Photoelectric Materials: Multiple Shells Bring Novel Properties

引用

Chemical Research in Chinese Universities 2024年第3期40卷 413-427页

作者： SU Fengmei WAN Jiawei WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese AcademyofSciencesBeijing 100049P.R.China

Hollow multi-shelled structures(HoMSs)have made significant strides across a wide spectrum of scientific investigations since the inception of the sequential templating approach(STA)in 2009,revealing distinctive temporal-spatial ordering *** recent establishment of a mathematical model for STA has not only demystified the formation of concentration waves within the STA process but also extended its relevance to gentler solutionbased systems,thereby broadening the HoMs ***,focusing on photoelectric applications,this review first summarizes the unique temporal-spatial ordering features of ***,the greatly enhanced properties of light capture and absorption,exciton separation,and transfer are deeply ***,we conclude with a perspective on the potential challenges and burgeoning opportunities that lie ahead in the advancement of HoMs development.

关键词： Hollow multi-shelled structure Photoelectric conversion Sequential templating approach Light absorption Chargetransfer

来源：评论

学校读者我要写书评

暂无评论

Porous carbon material production from microwave-assisted pyrolysis of peanut shell

引用

Carbon Research 2023年第1期2卷 1-17页

作者： Qiu, Tianhao Li, Chengxiang Guang, Mengmeng Zhang, Yaning School of Energy Science and Engineering Harbin Institute of Technology Harbin150001 China State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Due to the complex porous structure, biochar usually has good adsorption capacity. Therefore, compared with direct combustion, conversion of peanut shell into biochar by pyrolysis is considered to be an environmentally friendly and efficient method for agricultural solid waste disposal. In this study, biochar production from microwave-assisted pyrolysis of peanut shell was detailed. The yields, surface topographies, and pore structures (pore size distribution and micropore volume) of biochars prepared at different pyrolysis temperatures (700, 750, 800, 850, 900, and 950 °C), microwave powers (350, 400, 450, 500, and 550 W), and residence times (0.5, 1.0, 1.5, 2.0, and 3.0 h) were elaborated. The results showed that the biochar yield gradually decreased and finally stabilized to around 30% while the specific surface area improved within the range of 4.68–67.29 m2/g when the pyrolysis temperature, microwave power, or residence time increased. Biochar with micropore was first obtained at pyrolysis temperature of 800 °C, microwave power of 500 W, and residence time of 2.0 h. This study further proposed quantitative relationships between the pore structures of peanut shell based biochars and experimental conditions (pyrolysis temperature, microwave power and residence time). The results presented in this study can provide guidance for the reuse of peanut shell and the production of porous biochar. The peanut shell biochar prepared in this study can be used in soil remediation, air purification, liquid purification and other fields for its porous structural characteristics. © 2023, The Author(s).

关键词： Waste incineration

来源：评论

学校读者我要写书评

暂无评论

Constructing BaTiO_(3)/TiO_(2)@polypyrrole composites with hollow multishelled structure for enhanced electromagnetic wave absorbing properties

引用

International Journal of Minerals,Metallurgy and Materials 2023年第3期30卷 581-590页

作者： Dan Mao Zhen Zhang Mei Yang Zumin Wang Ranbo Yu Dan Wang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Energy Storage Science and Engineering School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China University of Chinese Academy of Sciences Beijing 100049China

BaTiO_(3)/TiO_(2)@polypyrrole(PPy)composites with hollow multishelled structure(HoMS)were constructed to enhance the electromagnetic wave absorbing properties of BaTiO_(3)-based absorbing ***_(3)/TiO_(2)HoMSs were prepared by hydrothermal crystallization using TiO_(2)Ho MSs as ***,FeCl3 was introduced to initiate the oxidative polymerization of pyrrole monomer,forming BaTiO_(3)/TiO_(2)@PPy HoMSs *** electromagnetic wave absorbing properties of BaTiO_(3)/TiO_(2)HoMSs and BaTiO_(3)/TiO_(2)@PPy Ho MSs with different shell number were investigated using a vector network *** results indicate that BaTiO_(3)/TiO_(2)@PPy HoMSs exhibit improved microwave absorption compared with BaTiO_(3)/TiO_(2)*** particular,tripled-shelled BaTiO_(3)/TiO_(2)@PPy HoMS has the most excellent absorbing *** best reflection loss can reach up to-21.80 dB at 13.34 GHz with a corresponding absorber thickness of only 1.3 mm,and the qualified absorption bandwidth of tripled-shelled BaTiO_(3)/TiO_(2)@PPy HoMS is up to 4.2 *** work paves a new way for the development of high-performance composite microwave absorbing materials.

关键词： BaTiO_(3)/TiO_(2)@polypyrrole composites hollow multishelled structure electromagnetic wave absorbing

来源：评论

学校读者我要写书评

暂无评论

Peroxidase-like active Cu-ZIF-8 with rich copper(I)-nitrogen sites for excellent antibacterial performances toward drug-resistant bacteria

引用

Nano Research 2024年第8期17卷 7427-7435页

作者： Xiaoze Wang Hui Wang Jingkun Zhang Ning Han Wenjun Ma Donghai Zhang Mingshui Yao Xianliang Wang Yunfa Chen State Key Laboratory of Mesoscience and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of the Chinese Academy of Sciences Beijing 100049China Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory of Nanosystem and Hierarchial FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China China CDC Key Laboratory of Environment and Population Health National Institute of Environmental HealthChinese Center for Disease Control and PreventionBeijing 100021China

Bacterial pathogens pose a serious threat to human health,and there is an urgent need to develop highly effective antibacterial materials to eliminate the increasingly serious contamination of drug-resistant ***,a Cu-doped ZIF-8 particle with unsaturated copper exhibits high peroxidase-like activity.99.998%antibacterial efficiency against *** can be achieved for 30 min at a low concentration of 50μg·mL^(−1),as well as complete sterilization against ***(up to 8 log).99.999%antibacterial efficiency against Methicillin-resistant Staphylococcus aureus can be achieved,performing orders of magnitude higher than *** mechanism shows that the unsaturated Cu-Nx sites are enzyme-like active centers,which could promote the consumption of bacteria reducing substances by H_(2)O_(2),and the generated*OH further aggravates bacterial oxidative stress and membrane *** importantly,the oxidation activity of adsorbed oxygen species on Cu-ZIF-8 is enhanced by charge transfer and structural changes between the ligand and copper center like natural ***-doped ZIF-8 with peroxidase-like activity shows great potential in antibacterial application and the revealed catalytic mechanism is helpful for understanding the high antibacterial activity of nanoparticles with Cu-Nx sites.

关键词： Cu-doped ZIF-8 peroxidase-like reactive oxygen species(ROS) catalytic mechanism antibacterial activity

来源：评论

学校读者我要写书评

暂无评论

Apoferritin nanoparticle based dual-antigen influenza conjugate vaccine with potential cross-protective efficacy against heterosubtypic influenza virus

引用

Particuology 2022年第5期20卷 56-64页

作者： Yanan Sheng Jiangxue Wei Zhengjun Li Zhiguo Su Guanghui Ma Songping Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Ferritin nanoparticles with self-assembling properties have been widely explored as vaccine carrier by displaying foreign antigens through genetic fusion *** the present work,an apoferritin(AFt)nanoparticle was tested as influenza vaccine carrier by chemically conjugating a matrix protein 2 ectodomain(M2e)antigen peptide or/and the full-length hemagglutinin(HA)antigen on the outer surface of the AFt,with heterobifunctional sSMCC or SM(PEG)_(24) containing PEG chain as *** each AFt nanoparticle,about 30-32 M2e or 1.8 HA antigen could be *** AFt-(PEG)24-M2e,in which the M2e was coupled through SM(PEG)_(24) containing PEG chain,conferred higher protective efficacy in immunized mice than AFt-M2e did,but was less effective than AFt-(PEG)_(24)-*** both M2e and HA were coupled,the synthesized dual-antigen vaccine candidate AFt-(PEG)_(24)-M2e/HA elicited high level of M2e and HA antigen-specific antibodies and conferred 100%protection against lethal infection of homologous PR8 HI N1 virus strain and 70%protection against a heterologous A/FM/1/47(FM1,H1N1)strain,which was more effective than the M2e or HA single antigen vaccine *** potential cross-protective effect of the dual-antigen vaccine was further demonstrated by significant specific hemagglutination inhibition(HAI)titers in serum of the immunized mice against three other heterologous viral strains including A/Singapore/GPl908/2015(IVR-180)H1N1,A/Anhui/1/2005 H5N1,and A/Hong Kong H3N2.

关键词： Influenza vaccine Apoferritin nanoparticle Hemagglutinin M2e Conjugate vaccine

来源：评论

学校读者我要写书评

暂无评论

Mesenchymal Stem Cells Proliferation on Konjac Glucomannan Microcarriers:Effect of Rigidity

引用

Chinese Journal of Polymer Science 2022年第9期40卷 1080-1089页

作者： Xing-Ran Yan Juan Li Xiang-Ming Na Tong Li Yu-Fei Xia Wei-Qing Zhou Guang-Hui Ma State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Mesenchymal stem cells(MSCs)have attracted great attention as a source of cells for regenerative medicine owing to their self-renewal ability and multiple differentiation ***,the serious shortage of MSCs and the difficulty of maintaining the differentiation potential during culture in vitro limit their *** culture technology is an effective method to realize large-scale culture of MSCs,whereas the effect of microcarriers properties on MSCs proliferation and differentiation potential maintenance should be *** this study,Konjac glucomannan(KGM)microcarriers with a wide range of rigidity from 0.2 MPa to 10 MPa were prepared using water-in-oil emulsion *** was found that the microcarriers rigidity had great influence on MSCs by regulating cell spreading *** proliferation and good differentiation potential maintenance of MSCs were achieved on the intermediate rigidity about 2.51±0.65 MPa with the faster spreading rate of *** a result,MSCs on 2.51±0.65 MPa KGM microcarriers proliferated about 27 times,which was 1.7 times as much as MSCs cultured on the commercial microcarriers *** differentiation potential was also improved about 3.2 times compared to ***,it is indispensable to regulate microcarriers rigidity,especially for application of MSCs.

关键词： MSCs Proliferation Differentiation potential Rigidity Spreading

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：