检索结果-南通市图书馆

Rare Metals 2021年第2期40卷 489-498页

作者： Shan Liu Xiao Wang Hong-Guang Yu ya-pan wu Bo Li ya-Qian Lan Tao wu Jian Zhang Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang443002China

Searching for non-noble metal catalysts with high activities and low price is critical to the commercialization of methanol oxidation in the process of fuel ***,two new pseudo-isomeric Ni metal-organic frameworks(Ni-MOFs)(CTGU-17/CTGU-18)have been prepared with 1,4-naphthalenedi-carboxylate(H_(2)NDC),4,4’-dipyridyl amine(DPA)and Ni(ClO_(4))_(2)under hydrothermal *** phase contains one water molecule,but differs dramatically in its bonding to the framework,resulting in different topological networks with fourfold interpenetrating 4-connected dia net(CTGU-17)and(3,7)-connected net(CTGU-18)and diverse electrocatalytic performance for methanol oxidation reaction(MOR).Remarkably,by combining each MOF with the conductive additive,acetylene black(AB),a composite material,AB&CTGU-18(2:4)was confirmed to have an excellent performance for MOR with a high mass specific peak current of 442.3 mA·mg^(-1).The enhanced electrocatalytic activities and robustness might be attributed to the synergetic effect of acetylene black and the active metal centers of MOFs particles for methanol *** present work would provide a new insight for the rational design of MOFs-based composites with enhanced methanol oxidation reaction performance.

关键词： Nickel(Ⅱ) MOFs Composite materials Electrocatalysis Methanol oxidation

维普期刊数据库

A 3D Ni_(8)-cluster-based MOF as a molecular electrocatalyst for alcohol oxidation in alkaline media

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2023年第2期42卷 5-8页

作者： Wei-Juan Chen Tian-Yu Zhang Xue-Qian wu Yong-Shuang Li Yunling Liu ya-pan wu Zhao-Bo He Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang443002China College of Electrical Engineering&New Energy China Three Gorges UniversityYichang443002China Hubei Three Gorges Laboratory Yichang443007China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun130012China

*** DAFCs offer significant promise for compact electric devices through the consumption of liquid fuels as one of the renewable energy sources,with minimal environmental effects and prominent energy density[1-4].Beca... 详细信息

关键词： alcohol alkaline cluster

A small D-A molecule with highly heat-resisting room temperature phosphorescence for white emission and anti-counterfeiting

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2024年第3期43卷 3-9页

作者： Kun Zhang Ni Dan Dan-Dan Ren Ruo-Yu Zhang Xiaoyan Lu ya-pan wu Li-Lei Zhang Hong-Ru Fu Dong-Sheng Li College of Materials and Chemical Engineering China Three Gorges UniversityYichang443002PR China College of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang471934PR China

Achieving high heat-resisting room temperature phosphorescence(RTP)performance and robust white emission from pure small molecules is a meaningful but challenging ***,a simple donor-acceptor(D-A)molecule,9-(1H-benzotriazol-1-ylmethyl)-9H-carbazole(CzBtrz),was *** simple molecule not only exhibits multiple emissions including white light,thermally activated delayed fluorescence(TADF)and ultralong RTP with a lifetime of 988.54 ms at 545 nm,but also shows superhigh heat-resisting phosphorescence property which can maintain stability in a large temperature region from 77 to 350 K(ΔT=273 K),exceeding those of other RTP ***,this molecule shows the time-evolved dynamic *** experimental and theoretical an-alyses from CzBtrz crystal demonstrate that the intramolecular charge transfer(ICT)interaction and molecular stacking play an important role in the generation of ***,this work provides an efficient strategy to design ultrahigh heat-resistant RTP,ultralong RTP and single-phased white-light emitting materials.

关键词： Ultralong RTP TADF D-A molecule Heat-resisting White light

Two isostructural Co/Ni-MOF materials: synthesis, crystal structures and electrochemical properties

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Two isostructural Co/Ni-MOF materials: synthesis, crystal st...

2018年中西部地区无机化学化工学术研讨会

作者： Wang Xiao ya-pan wu Xiao-Kun Wang Jing-Wei Yi Dong-Sheng Li College of Materials and Chemical Engineering China Three Gorges University

In recent years, metal-organic frameworks(MOFs) has shown potential applications such as gas sorption and separation, chemical sensing, magnetism, molecular recognition and catalysis due to tailored structures, high surface area, tunable pore size and channels and unsaturated active sites[1-3].Herein, an undeveloped 1,3-di(3’,5’-dicarboxylphenyl)benzene(H4 Ddbp) ligand is employed to build two uncommon isostructural Co/Ni-MOFs materials. The electrocatalytic hydrogen evolution reaction of Co/Ni-MOF confirm that the activity of Co-MOF is superior to that of Ni-MOF, which achieve low overpotential of 249 m V and a small Tafel slope of 107 m V·dec-1 under the current density of 10 mA·cm.

关键词： 1,3-di(3’,5’-dicarboxylphenyl)benzene Co/Ni-MOFs water splitting hydrogen evolution reaction

A multi-responsive luminescent sensor based on a super-stable sandwich-type terbium(Ⅲ) metal-organic framework

在线全文

cnki会议

学校读者我要写书评

暂无评论

A multi-responsive luminescent sensor based on a super-stabl...

河南省化学会2016年学术年会

作者： Min-Le Han Guo-Xuan Wen Xue-Qian wu ya-pan wu Jun Zhao Dong-Sheng Li Lu-Fang Ma College of Materials& Chemical Engineering Collaborative Innovation Centre for Microgrid of New Energy of Hubei Province Key laboratory of inorganic nonme tallic crystalline and energy conversion materialsChina Three Gorges University College of Chemistry and Chemical Engineering and Henan Key Laboratory of Function-Oriented Porous Materials Luoyang Normal University

A super-stable multifunctional terbium(III) metal-organic framework, namely {[Tb(TATAB)(HO)]·NMP·HO}(Tb-MOF, HTATAB = 4,4′,4′′-s-triazine-1,3,5-triyltri-m-aminobenzoic acid, NMP =N-methyl-2-pyrrolidone) was synthesized. Tb-MOF exhibits a mono-nodal 4-connected 2D sql structure with binuclear [Tb(COO)(HO)] units. The free water and NMP molecules are inserted between the layers through hydrogen-bonding interactions, forming a sandwich-type architecture. The MOF remains intact in both common solvent and aqueous solutions with metal cations, inorganic anions, and p H ranging from 1 to 13, a remarkably extensive environment that a MOF can sustain. Tb-MOF is capable of high sensitive and high selectivity sensing small organic molecules, metal cations, inorganic anions, and detect highly explosive 2-nitrophenol, 3-nitrophenol, 4-nitrophenol and 2,4,6-trinitrophenol in water, especially 4-nitrophenol and 2,4,6-trinitrophenol. In addition, the luminescence intensity of Tb-MOF is strongly correlated with the p H value in the p H range from 1 to 13.

关键词： terbium(Ⅲ) metal-organic framework sandwich-type multi-responsive luminescent sensor

Co-production of hydrogen, oxygen, and electricity via an integrated solar-driven system with decoupled water electrolyzer and Na-Zn ion battery

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： Fei Lv Longjie Liu Jiazhe wu Pengfei Wang Lixia pan Dengwei Jing Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （H2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNiHCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce H2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNiHCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting Si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： Hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery Solar energy

Sky location of massive black hole binaries in the foreground of Galactic white dwarf binaries

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 97-108页

作者： pan Guo Hong-Bo Jin Cong-Feng Qiao Yue-Liang wu The International Centre for Theoretical Physics Asia-Pacific University of Chinese Academy of Sciences The School of Physical Sciences University of Chinese Academy of Sciences Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University National Astronomical Observatories Chinese Academy of Sciences Institute of Theoretical Physics Chinese Academy of Sciences

For space-based gravitational wave （GW） detection,the main noise source for massive black hole binaries （MBHBs） is attributed to approximately 10～7double white dwarf binaries in the *** a GW source,the amplitude of the detector response,recorded by a space-based gravitational wave detector,exhibits a modulation effect with a year period when observing the source from various orbital *** the adverse conditions mentioned above,where there is a strong foreground noise and annual modulation in the signals,we employed the wavelet transform and the strong-amplitude relevant orbital position search methods,which allows the weak MBHB sources to achieve higher locating *** detail,for two MBHB sources of lower intensity,the precision of luminosity distance,represented by the ratio ?DL/DLat the 95%confidence level,is enhanced by factors of ～*** angular resolutions,denoted by??s,are enhanced by a factor of ～*** improvements increase the number of detectable GW sources,facilitate multi-messenger follow-up observations and provide constraints on the cosmological constant.

关键词： space-based gravitational wave detection gravitational waves massive black hole binaries

Structural characterization and solvent-sensing properties of two new CuⅡ/CoⅡ-metal-organic frameworks

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Structural characterization and solvent-sensing properties o...

第六届全国物理无机化学会议

作者： ya-pan wu,Yi-Qiang Mu,Jing-Jing yang,Liang Bai,Dong-Sheng Li~* College of Mechanical & Material Engineering,Research Institute of Materials,China Three Gorges University,Yichang,443002,P.R.China

＜正＞The rapid development of a new class of porous materials known as crystalline metal-organic frameworks （MOFs） materials is stimulating exploitation in the fields of crystal engineering,chemistry,and materials science. MOFs’ diversified topological networks,as well as especial physicochemical properties,make these materials

关键词：

Structural characterization and photocatalytic properties of a new Zn（Ⅱ）-based metal-organic framework

在线全文

cnki会议

学校读者我要写书评

暂无评论

Structural characterization and photocatalytic properties of...

中国化学会第六届全国结构化学学术会议

作者： ya-pan wu,Jing-Jing yang,Yi-Qiang Mu,Jun Zhao,Dong-Sheng Li~* College of Mechanical & Material Engineering,Research Institute of Materials,China Three Gorges University,Yichang,443002,P.R.China

＜正＞Considerable attention has been paid to exploiting new photocatalytic catalysts based on crystalline metal-organic frameworks（MOFs） materials in recent ***,MOFs crystalline materials usually exhibit absorption bands in the visible region due to the organic linkers coordinating to transition metal centers,which indicate MOFs may undergo photochemical processes and exhibit responses upon

关键词：

Broadband and perfect terahertz absorber based on multilayer metamaterial with cross-ring patterned structures

在线全文

cnki会议

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年第1期21卷 1-6页

作者： WEN Jin LIU Zhanzhi wu Zhengwei pan Yu ZHANG Ying School of Science Xi'an Shiyou University Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells

Broadband and perfect terahertz absorber based on multilayer metamaterial using cross-ring patterned structures is proposed and investigated. The structure of the absorber is double absorption layers consisting of a chromium cross ring and eight isosceles right triangles. The unique structure of the double absorbing layers excites the electric dipole multimode resonance, giving rise to high absorption performance. Meanwhile, the influence of construal parameters on absorber behavior is also discussed. The numerical results show that the absorption achieves over 90% ranging from 2.45 THz to 6.25 THz and 99% absorption in the range of 3.7—5.3 THz. The realization of broadband and perfect absorber is described using the impedance matching principle. It is obviously found that the absorber is insensitive to the high angle of incidence for both transverse electric(TE) and transverse magnetic(TM) polarizations. Compared with the former reports, this absorber has remarkable improved absorption efficiency and smaller period. The terahertz absorber may be found applications in the fields of energy capture and thermal detection.

关键词： Metamaterials