检索结果-南通市图书馆

A flexible metal-organic framework with double interpenetration for highly selective CO2 capture at room temperature

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2016年第8期59卷 965-969页

作者： Bin Li banglin chen Department of Chemistry University of Texas at San Antonio San Antonio Texas 78249-0698 USA

A flexible metal-organic framework of la Cu（FMA）（4,4＇-Bpe）0.s （FMA=fumarate; 4,4＇Bpe=trans-bis-（4-pyridyl）ethylene） that exhibits guest molecule-controlled gate-opening adsorption has been reported, in which the flexible pores can be enlarged by CO2 molecules rather than CH4 and N2 under a certain gate-opening pressure. The CO2 uptake can be sharply improved from 6.85 cm3 gq at 0.60 atm to 33.7 cm3 g^-1 at 1 atm due to the gate-opening effect, thus resulting in the notably enhanced adsorption selectivities for CO2/CH4 （32：1, v/v） and CO2/N2 （48：1, v/v） separations at room temperature.

关键词： metal-organic framework flexible C02 capture selectivity gate-opening effect

A dynamic MOF for efficient purification of propylene

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2021年第12期64卷 2053-2054页

作者： Rui-Biao Lin banglin chen MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of ChemistrySun Yat-Sen UniversityGuangzhou510006China Department of Chemistry University of Texas at San AntonioSan AntonioTX78249USA

Propylene is an important chemical feedstock for making chemical products such as polypropylene and acrylonitrile,whereas propane is well-known for heating and *** and propane are usually found as a mixture since they come from steam cracking of heavy hydrocarbons like *** two differ by just two hydrogen atoms and have the same alkyl part,i.e.

关键词： propylene hydrocarbons dynamic

Microporous metal-organic framework materials for efficient capture and separation of greenhouse gases

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2023年第8期66卷 2181-2203页

作者： Shan-Qing Yang Tong-Liang Hu banglin chen School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin300350China Department of Chemistry University of Texas at San AntonioSan AntonioTexas78249-0698USA

The release of anthropogenic greenhouse gases into the atmosphere poses serious risks to the environment and human health,and is a global threat of growing *** order to ameliorate the greenhouse gas emission problems,the efficient capture and separation of these greenhouse gases are greatly ***-organic framework(MOF)materials,a relatively new kind of organic-inorganic hybrid porous materials with unique framework features,tunable pore environment and high surface areas,have been widely studied as regards their applicability to this *** the well-defined structures of MOF materials greatly promote the understanding of structure-property *** this review,we intend to provide a profound account of significant progress in the field of capture and separation of greenhouse gases using MOFs as adsorbents,including carbon dioxide,methane,nitrous oxide and fluorocompounds(such as perfluorocarbons,sulfur hexafluoride,hydrochlorocarbons,and hydrofluocarbons).The strategies used to realize the efficient capture and separation of greenhouse gases have been summarized,and the relationships between the frameworks,their capture and separation performances and mechanisms are ***,the existing challenges and perspectives with regard to the development of MOF materials for the capture and separation of greenhouse gases and industrial practical application are outlined to further promote this very significant and active emerging topic.

关键词： porous materials metal-organic frameworks greenhouse gases capture and separation structure-property relationship

Emerging 2D functional metal-organic framework materials

在线全文

学校读者我要写书评

暂无评论

National Science Review 2020年第1期7卷 3-5页

作者： Bin Liang Rui-Biao Lin banglin chen Department of Chemistry University of Texas at San Antonio

Two-dimensional metal-organic frameworks (2D MOFs) have been explored intensively in the fields of materials science, chemistry and nanotechnology over the past decade [1]. Their unique features such as the ultrathin thickness,more exposed accessible surface atoms and active sites have enabled 2D MOFs to exhibit superior applications for

关键词： BDC Emerging 2D functional metal-organic framework materials

Controllable broadband multicolour single-mode polarized laser in a dye-assembled homoepitaxial MOF microcrystal

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2020年第1期9卷 686-695页

作者： Huajun He Yuanjing Cui Hongjun Li Kai Shao banglin chen Guodong Qian State Key Laboratory of Silicon Materials Cyrus Tang Center for Sensor Materials and ApplicationsSchool of Materials Science and EngineeringZhejiang University310027 HangzhouChina Department of Chemistry University of Texas at San AntonioSan AntonioTX 78249USA Present address:Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang LinkSingapore 637371Singapore

Multicolour single-mode polarized microlasers with visible to near-infrared output have very important applications in photonic integration and multimodal biochemical sensing/imaging but are very difficult to ***,we demonstrate a single crystal with multiple segments based on the host-guest metal-organic framework ZJU-68 hierarchically hybridized with different dye molecules generating controllable single-mode green,red,and nearinfrared lasing,with the lasing mode mechanism revealed by computational *** segmented and oriented assembly of different dye molecules within the ZJU-68 microcrystal causes it to act as a shortened resonator,enabling us to achieve dynamically controllable multicolour single-mode lasing with a low three-colour-lasing threshold of ~1.72 mJ/cm^(2)(approximately seven times lower than that of state-of-the-art designed heterostructure alloys,as reported by Fan F et al.(***.10:796-803,2015)considering the single pulse energy density)and degree of polarization>99.9%.Furthermore,the resulting three-colour single-mode lasing possesses the largest wavelength coverage of ~186 nm(ranging from ~534 to ~720 nm)ever *** findings may open a new route to the exploitation of multicolour single-mode micro/nanolasers constructed by MOF engineering for photonic and biochemical applications.

关键词： polarization resonator mode

A microporous aluminum-based metal-organic framework for high methane,hydrogen,and carbon dioxide storage

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

Nano Research 2021年第2期14卷 507-511页

作者： Bin Wang Xin Zhang Hongliang Huang Zhangjing Zhang Taner Yildirim Wei Zhou Shengchang Xiang banglin chen Fujian Provincial Key Laboratory of Polymer Materialsy College of Chemistry and Materials Science Fujian Normal University32 Shangsan RoadFuzhou 350007China Department of Chemistry University of Texas at San AntonioOne UTSA Circlet San AntonioTexas 78249-0698USA Center for Neutron Research National Institute of Standards and TechnologyGaithersburgMaryland 20899-6102USA State Key Laboratory of Separation Membranes and Membrane Processes Tianjin Polytechnic UniversityTianjin 300387China

We report a microporous aluminum-based metal-organic framework(MOF),BUT-22 for high methane(CH_(4)),hydrogen(H_(2)),and carbon dioxide(CO2)*** 296 K and 80 bar,BUT-22 exhibits a high gravimetric CH4 storage capacity of 530 cm^(3)(STP)/g(0.379 g/g).BUT-22 also has a high gravimetric H_(2)storage capacity of 12 wt.%at 100 bar and 77 *** addition,the CO_(2)adsorption studies revealed that BUT-22 exhibits a high absolute gravimetric CO2 uptake of 1.7 g/g at 296 K and 40 bar.

关键词： metal-organic frameworks(MOFs) gas storage methane hydrogen carbon dioxide

Metal-organic framework coated titanium dioxide nanorod array p-n heterojunction photoanode for solar water-splitting

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

Nano Research 2019年第3期12卷 643-650页

作者： Hui Yang Joeseph Bright Sujan Kasani Peng Zheng Terence Musho banglin chen Ling Huang Nianqiang Wu Department of Mechanical and Aerospace Engineering West Virginia University Morgantown WV 26506-6106 USA C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV 26506-6045 USA Department of Pharmaceutical Science West Virginia University Morgantown WV 26506-9530 USA Lane Department of Computer Science and Electrical Engineering West Virginia University Morgantown WV 26506 USA Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-1604 USA Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211816 China

This paper presents a p-n heterojunction photoanode based on a p-type porphyrin metal-organic framework (MOF) thin film and an n-type rutile titanium dioxide nanorod array for photoelectrochemical water splitting. The TiO2@MOF core-shell n anorod array is formed by coati ng an 8 nm thick MOF layer on a vertically aligned TiO2 nanorod array scaffold via a layer-by-layer self-assembly method. This vertically aligned core-shell nanorod array enables a long optical path length but a short path length for extraction of photogenerated minority charge carriers (holes) from TiO2 to the electrolyte. A p-n junction is formed between TiO2 and MOF, which improves the extraction of photogenerated electr ons and holes out of the TiO2 nano rods. In additi on, the MOF coati ng sign ificantly improves the efficie ncy of charge in jecti on at the photoanode/electrolyte interface. Introduction of Co(lll) into the MOF layer further enhances the charge extraction in the photoanode and improves the charge injection efficiency. As a result, the photoelectrochemical cell with the TiO2@Co-MOF nanorod array photoanode exhibits a photocurrent density of 2.93 mA/cm^2 at 1.23 V (vs. RHE), which is ~ 2.7 times the photocurrent achieved with bare T1O2 nanorod array under irradiation of an unfiltered 300 W Xe lamp with an output power density of 100 mW/cm^2.

关键词： metal-organic framework water-splitting p-n junction photoanode titanium dioxide

Reversed ethane/ethylene adsorption in a metal–organic framework via introduction of oxygen

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 Chemical Engineering 2020年第2期28卷 593-597页

作者： Ling Yang Wei Zhou Hao Li Ali Alsalme Litao Jia Jiangfeng Yang Jinping Li Libo Li banglin chen College of Chemistry and Chemical Engineering Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of TechnologyTaiyuan 030024China NIST Center for Neutron Research National Institute of Standards and TechnologyGaithersburgMD 20899-6102United States Department of Chemistry University of Texas at San AntonioOne UTSA CircleSan AntonioTX 78249-0698United States Chemistry Department College of ScienceKing Saud UniversityP O Box 2455Riyadh 11451Saudi Arabia State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030024China Key Laboratory of Coal Science and Technology Taiyuan University of TechnologyTaiyuan 030024China Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024China

Separation of ethane from ethylene is a very important but challenging process in the petrochemical *** an alternative method would reduce the energy needed to make 170 million tons of ethylene manufactured worldwide each *** separation using C2H6-selective porous materials to directly produce high-purity C2H4 is more *** herein report the"reversed C2H6/C2H4 adsorption"in a metal–organic framework Cr-BTC via the introduction of oxygen on its open metal *** oxidized Cr-BTC(O2)can bind C2H6 over C2H4 through the active Cr-superoxo sites,which was elucidated by the gas sorption isotherms and density functional theory *** material thus exhibits a good performance for the separation of 50/50 C2H6/C2H4 mixtures to produce 99.99%pure C2H4 in a single separation operation.

关键词： Metal–organic frameworks Adsorptive separation Open metal sites Reversed ethane/ethylene adsorption Density-functional theory calculation Breakthrough curves

A two-dimensional microporous metal–organic framework for highly selective adsorption of carbon dioxide and acetylene

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2017年第8期28卷 1653-1658页

作者： Osamah Alduhaish Bin Li Hadi Arman Rui-Biao Lin John Cong-Gui Zhao banglin chen Deportment of Chemistry University of Texas at San AntonioSon AntonioTX 78249-0698USA

Solvothermal reaction of 3-aminoisonicotinic acid（Haina） and Cu（NO_3）_2·2.5H_2O gave a novel twodimensional（2D） microporous metal–organic framework, [Cu（aina）_2（DMF）]·DMF（1, DMF = N,N-dimethylformamide）. Single-crystal X-ray crystallographic study of compound 1 revealed that Cu（II）ions are linked by ainaàligands forming square grid-like layers, which stack together via multiple hydrogen bonding interactions. The solvent-free framework of 1a displayed considerable porosity（void = 46.5%） with one-dimensional（1D） open channels（4.7 ？？ 4.8 ？） functionalized by amino *** sorption measurements of 1 revealed selective carbon dioxide（CO_2） and acetylene（C_2H_2） adsorption over methane（CH_4） and nitrogen（N_2） at ambient temperature.

关键词： Metal–organic frameworks Two-dimensional structure 3-Aminoisonicotinic acid Hydrogen bonding Gas separation Acetylene