检索结果-内蒙古大学图书馆

Heterostructural NiFeW disulfide and hydroxide dual‐trimetallic core‐shell nanosheets for synergistically effective water oxidatio

引用

Carbon Energy 2024年第8期6卷 192-204页

作者： Peng‐Fei Guo Yang Yang Bing Zhu Qian‐Nan Yang Yan Jia Wei‐Tao Wang Zhao‐Tie Liu Shi‐Qiang Zhao Xun Cui Key Laboratory of Chemical Additives for China National Light Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and TechnologyXi'anChina School of Chemistry and Chemical Engineering Shaanxi Normal UniversityXi'anChina Key Laboratory of Carbon Materials of Zhejiang Province Wenzhou Key Lab of Advanced Energy Storage and ConversionZhejiang Province Key Lab of Leather EngineeringCollege of Chemistry and Materials EngineeringWenzhou UniversityWenzhouChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanChina

A stable and highly active core‐shell heterostructure electrocatalyst is essential for catalyzing oxygen evolution reaction(OER).Here,a dual‐trimetallic core‐shell heterostructure OER electrocatalyst that consists of a NiFeWS_(2) inner core and an amorphous NiFeW(OH)_(z)outer shell is designed and synthesized using in situ electrochemical *** electrochemical measurements of different as‐synthesized catalysts with a similar mass loading suggest that the core‐shell Ni_(0.66)Fe_(0.17)W_(0.17)S_(2)@amorphous NiFeW(OH)_(z) nanosheets exhibit the highest overall performance compared with that of other bimetallic reference catalysts for the ***,the nanosheet arrays were in situ grown on hydrophilic‐treated carbon paper to fabricate an integrated three‐dimensional electrode that affords a current density of 10 mA cm^(−2) at a small overpotential of 182 mV and a low Tafel slope of 35 mV decade^(−1) in basic *** Faradaic efficiency of core‐shell Ni_(0.66)Fe_(0.17)W_(0.17)S_(2)@amorphous NiFeW(OH)_(z) is as high as 99.5% for *** scanning electron microscope,transmission electron microscope,and X‐ray photoelectron spectroscopy analyses confirm that this electrode has excellent stability in morphology and elementary composition after long‐term electrochemical ***,density functional theory calculations further indicate that the core‐shell heterojunction increased the conductivity of the catalyst,optimized the adsorption energy of the OER intermediates,and improved the OER *** study provides a universal strategy for designing more active core‐shell structure electrocatalysts based on the rule of coordinated regulation between electronic transport and active sites.

关键词： amorphous NiFeW hydroxide core‐shell heterojunction in situ electrochemical tuning NiFeW disulfide oxygen evolution reaction

来源：评论

学校读者我要写书评

暂无评论

Regeneration of the absorbent by the PTFE hollow fiber membranes using vacuum membrane regeneration technology 13th

Regeneration of the absorbent by the PTFE hollow fiber membr...

引用

13th International Wool Research Conference, IWRC 2015 and AATCC Sustainability Symposium, AATCC-SS 2015

作者： Wang, Kun Wang, Feng Guo, Yuhai Tang, Hongyan Zhang, Huapeng National Local Joint Engineering Laboratory of Textile Fiber Material and Processing Technology Zhejiang Sci-Tech University Hangzhou310018 China Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China

ISBN: (纸本)9783038355724

The polytetrafluoroethylene (PTFE) hollow fiber membranes were prepared through a cold pressing method including paste extruding, stretching and sintering in this study. Membrane vacuum regeneration technology (MVR) was developed as a novel regeneration technology for regeneration of the absorbent. The membrane structures of the PTFE hollow fiber membranes were investigated. The mixture of N-methyldiethanolamine and piperazine was selected as the absorbent. The PTFE hollow fiber membranes were used for regeneration through vacuum membrane regeneration technology. The CO2 regeneration flux and regeneration ratio increased with the increase of the regeneration temperature and the CO2 loading. The regeneration pressure was negative to the regeneration flux and regeneration ratio. When the flow rate of the rich solution increased, the regeneration ratio decreased and CO2 regeneration flux increased significantly. © (2016) Trans Tech Publications, Switzerland.

关键词： Carbon dioxide

来源：评论

学校读者我要写书评

暂无评论

CO2 desorption by hydrophilic PTFE hollow fiber membranes via a membrane flash process 13th

CO2 desorption by hydrophilic PTFE hollow fiber membranes vi...

引用

13th International Wool Research Conference, IWRC 2015 and AATCC Sustainability Symposium, AATCC-SS 2015

作者： Lv, Pengpeng Wang, Feng Guo, Yuhai Tang, Hongyan National Local Joint Engineering Laboratory of Textile Fiber Material and Processing Technology Zhejiang Sci-Tech University Hangzhou310018 China Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China

ISBN: (纸本)9783038355724

In this study, hydrophilic PTFE hollow fiber membranes were prepared and applied for CO2 desorption via a membrane flash process, which is a new CO2 desorption process by utilizing waste thermal energy. The methyldiethanolamine was selected as the absorbent. Effects of the flashing temperature, flashing pressure, rich solution flow rate and MDEA concentration on CO2 release ratio and CO2 desorption flux were deeply investigated. The results show that flashing temperature is positive to the CO2 release ratio and CO2 desorption flux. However, the flashing pressure, rich solution flow rate and MDEA concentration are negative to the CO2 release ratio and CO2 desorption flux. © (2016) Trans Tech Publications, Switzerland.

关键词： Desorption

来源：评论

学校读者我要写书评

暂无评论

Hollow [email protected] oxide core–shell composite for high-performance Li–S batteries

引用

Journal of Alloys and Compounds 2015年 650卷 604-609页

作者： Jiawei Zhang Ning Yang Xiaogang Yang Shengji Li Juming Yao Yurong Cai The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education National Engineering Lab for Textile Fiber Materials and Processing Technology Zhejiang College of Materials and Textiles Zhejiang Sci-Tech University Hangzhou 310018 China

In this paper, a hollow [email protected] oxide core–shell composite is synthesized for high-performance lithium-sulfur batteries through a facile two-step solution method with the assistance of polyvinylpyrrolidone. Scanning electron microscope observation shows that the hollow sulfur sphere is coated by the homogeneous graphene oxide nanolayer, and thermogravimetric analysis demonstrates the composite holds sulfur loading as high as 92 wt%. The composite served as cathode in lithium-sulfur batteries shows its capacity as high as 745 mAh g −1 at 0.2C after 20 cycles. It also has an excellent cycling stability even at a high current density of 1C (73% retention and 96% coulombic efficiency after 150 cycles), implying that the diffusion of the polysulfides into electrolyte can be greatly inhibited. It is believed that the structure design of graphene oxide coated hollow sulfur sphere can be developed for the practical application of high-performance lithium-sulfur batteries.

关键词： Core–shell structure Graphene oxide Sulfur loading High-performance Lithium-sulfur batteries

来源：评论

学校读者我要写书评

暂无评论

Super‑elastic Scintillating fibers and Fabrics for Efficient and Visual Radiation Detection

引用

Advanced fiber materials 2023年第4期5卷 1493-1504页

作者： Minghui Du Jin Wang Sijia Xu Hongwei Li Zhihao Zhang Yankun Qi Shichao Lv Jianrong Qiu Yurong Yan Shifeng Zhou State Key Laboratory of Luminescent Materials and Devices School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641China Institute of Photonics Technology Jinan UniversityGuangzhou 510632China National Engineering Research Center of Novel Equipment for Polymer Processing School of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China Key Lab Guangdong High Property&Functional Polymer Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510641China Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and DevicesGuangzhou 510641China College of Optical Science and Engineering State Key Laboratory of Modern Optical InstrumentationZhejiang UniversityHangzhou 310027China

The fabrication of advanced radiation detectors is an important subject due to the wide use of radiation sources in scientific instruments,medical services,security check,non-destructive inspection,and nuclear ***,the manufacture of flexible and stretchable radiation detectors remains a ***,we report the scalable fabrication of super-elastic scintillating fibers and fabrics for visual radiation detection by thermal drawing and melt-spinning methods using styrene-b-(ethylene-co-butylene)-b-styrene,and scintillating Gd_(2)O_(2)S:Tb(GOS).Microstructure evolution,rheological properties,and radiation-composite interaction are studied to reveal the excellent processability,elasticity,and radiation detection ability of the fabricated *** from the physical crosslinking structural features of the polymer matrix and the excellent radiation absorption capacities of GOS,the resulting fiber can sustain high strains of 765%with a high content of GOS dopants(2 wt.%)and has excellent X-ray detection performance with the limit down to 53 nGy_(air)s^(-1).Furthermore,stretchable fabrics are constructed,and their applications in various fields,such as radiation warning,and X-ray imaging,are *** work not only provides a new type of super-elastic scintillating fibers and fabrics for smart textiles but also demonstrates their potential applications in the nuclear field.

关键词： Elastic fiber Radiation detection Optical materials X-ray imaging

来源：评论

学校读者我要写书评

暂无评论

Preparation of Nanofibrillated Cellulose and Application in Reinforced PLA/Starch Nanocomposite Film

Preparation of Nanofibrillated Cellulose and Application in ...

引用

2019国际造纸技术报告会

作者： Kaiyan Jin Jiangchun Mao Yanjun Tang Ruonan Zhao Yiming Zhou Xinhua Hong National Engineering Laboratory of Textile Fiber Materials and Processing Technology Zhejiang Sci-Tech University

Polylactic acid(PLA),one of the most promising biopolymers with exceptional properties,is being used in a wide variety of applications in diverse ***,low degradation rate,relatively high cost and inherently high brittleness of PLA severely hamper its further development,particularly in functional nanocomposites for bio-based *** the present work,green,biodegradable and reinforced PLA-based nanocomposite films were designed and prepared,where starch was incorporated for reducing the overall cost of nanocomposites for largescale application,and nanofibrillated cellulose(NFC) isolated from microcrystalline cellulose(MCC) via a completely green process was employed as a reinforcing ***,the morphology structure and dimension of the NFC samples isolated by high-pressure homogenization(HPH) coupled with hot water pretreatment were characterized using SEM,FT-IR,XRD,and laser scattering particle ***,the effect of NFC loadings on the rheological behavior of the PLA based nanocomposite suspensions and the overall properties of the corresponding nanocomposite films were *** indicated that increased NFC loadings reduced the shear viscosity and shear stress of the nanocomposite ***,the desired PLA/starch/NFC nanocomposite films were found to exhibit improved tensile strength,Young's modulus and reduced air permeability in comparison to pure PLA/starch *** work offered an effective route for the preparation of biodegradable and reinforced PLA-based nanocomposite films,which may be promising bio-nanocomposite materials for food packaging applications.

关键词： PLA Preparation of Nanofibrillated Cellulose and Application in Reinforced PLA/Starch Nanocomposite Film

来源：评论

学校读者我要写书评

暂无评论

Preparation of Properties of Polylactic Acid-Polyaniline-Nanocrystalline Cellulose

Preparation of Properties of Polylactic Acid-Polyaniline-Nan...

引用

2019国际造纸技术报告会

作者： Keli Ye Xiaoyu Wang Yanjun Tang Yiming Zhou Xingqi Zhang National Engineering Laboratory of Textile Fiber Materials and Processing Technology Zhejiang Sci-Tech University

Polylactic acid(PLA),imparted with electro-conductive,may hold considerable promise for diversified applications in such areas as electrode,electromagnetic shielding and functional biological *** the present work,an electro-conductive PLA/polyaniline(PANI)/nanocrystalline cellulose(NCC) nanocomposite film was successfully *** effects of NCC loadings on the rheological behavior of PLA/PANI/NCC suspensions and the microscopic,thermal,mechanical and conductive properties of corresponding nanocomposite films were systematically *** obtained PLA/PANI/NCC films exhibited that PLA was wrapped with PANI particles,as evidenced by *** revealed that the rheological behavior of suspensions showed dependence on the NCC ***,the PLA/PANINCC film with4 wt% NCC exhibited increases of 38.10% and 89.1% in tensile strength(TS) and tensile modulus(TM),respectively,as compared to PLA/***,the expected electrical conductivity of PLA/PANI/NCC films were reached and the highest value of which was achieved to2.16 S·m～(-1).These results demonstrated that the as-prepared PLA/PANI/NCC nanocomposite film is found to be ideal for use as a bio-based conductive material.

关键词： PLA Preparation of Properties of Polylactic Acid-Polyaniline-Nanocrystalline Cellulose NCC

来源：评论

学校读者我要写书评

暂无评论

Reactive Dyeing of Electrospun Cellulose Nanofibers by Pad-steam Method

引用

Chemical Research in Chinese Universities 2021年第3期37卷 535-540页

作者： Winges FATIMA Muhammad TARIQUE LI Min CHEN Mingyi Muzamil KHATRI Muhammad Nauman SARWAR Icksoo KIM Farooq AHMED Zeeshan KHATRI CHEN Rouxi WEI Kai National Engineering Laboratory for Modern Silk College of Textile and Clothing EngineeringSoochow UniversitySuzhou215123P.R.China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen518055P.R.China Nano Fusion Technology Research Lab Division of Frontier FibersInstitute for Fiber Engineering(IFES)Interdisciplinary Cluster for Cutting Edge Research(ICCER)Shinshu University3-15-1TokidaUedaNagano386-8567Japan Department of Textile Engineering Mehran University of Engineering and TechnologyJamshoro76062Pakistan

Based on the functional properties of electrospun cellulose nanofibers(CNF),scientists are showing substantial interest to enhance the aesthetic ***,the lower color yield has remained a big challenge due to the higher surface area of *** this study,we attempted to improve the color yield properties of CNF by the pad-steam dyeing *** CNF was obtained by deacetylation of electrospun cellulose acetate(CA)*** different kinds of reactive dyes were used and pad-steam dyeing parameters were *** images revealed smooth morphology with an increase in the average diameter of *** results showed no change in the chemical structure after dyeing of *** fastness results demonstrated excellent ratings for reactive dyes,which indicate good dye fixation properties and no color loss during the washing *** results confirm that the pad-steam dyeing method can be potentially considered to improve the aesthetic properties of CNF,which can be utilized for functional garments,such as breathable raincoats and disposable face masks.

关键词： Electrospun nanofiber Aesthetic property Color yield pad-steam dyeing Cellulose nanofiber Reactive dye

来源：评论

学校读者我要写书评

暂无评论

Fabrication of thermoresponsive cotton fabrics using oxygen plasma graft polymerisation of N-isopropylacrylamide

Fabrication of thermoresponsive cotton fabrics using oxygen ...

引用

作者： Li, Y.Q. Liu, J.Q. Engineering Research Center for Dyeing and Finishing of Textiles Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China Textile Fiber Materials and Processing Technology Local Joint National Engineering Laboratory Zhejiang Sci-Tech University Hangzhou310018 China

Plasma induced graft copolymerisation of N-isopropylacrylamide (NIPAAm) was investigated on cotton to develop a thermosensitive material. The oxygen plasma treatment was used to activate the cotton surface for graft polymerisation of poly (N-isopropylacrylamide). The effects of reaction conditions, such as monomer concentration, reaction time and reaction temperature on the grafting, were investigated. Moreover, morphological, structural and thermal properties of prepared grafted cotton were investigated using field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) analysis respectively. The results show that after initiation by the oxygen plasma, the cotton can be graft polymerised with NIPPAm. The grafted cotton fabric presented temperature stimuli responsiveness around 32-34°C. © 2014 W. S. Maney & Son Ltd.

关键词： Cotton

来源：评论

学校读者我要写书评

暂无评论

Catalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid by potassium ferrate

Catalytic oxidation of 5-hydroxymethylfurfural to 2,5-furand...

引用

The 4th International Conference on Biorefinery towards Bioenergy(第四届国际生物炼制会议)

作者： Junhua Zhang Junke Li Lei Li Guoxin Xue Key Lab. of Biomass Energy and Material Nanjing 210000China National Engineering Lab of Textile Fiber Materials & Processing TechnologyZhejiang Sci-Tech UniversityHangzhou 310018China National Engineering Lab of Textile Fiber Materials & Processing Technology Zhejiang Sci-Tech UniversityHangzhou 310018China

Green synthesis of 2,5-furandicarboxylic acid(FDCA),one of the most important platform chemical from biomass,via oxidation of biobased 5-hydroxymethylfurfural(HMF)by potassium ferrate(K2FeO4)catalyst has been demonstr... 详细信息

关键词： 5-hydroxymethylfurfural 2,5-furandicarboxylic acid oxidation potassium ferrate

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：