检索结果-内蒙古大学图书馆

Insight into CO2/CH4 Separation by Ionic Liquids Confined in Mxene Membrane from Molecular Level

学校读者我要写书评

暂无评论

SSRN 2024年

作者： Zhang, Xiaochun Xu, Peng Kong, Yunhan Liu, Yiming Zhang, Xiangping Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of Education East China University of Science and Technology Shanghai200237 China State Key Laboratory of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology Beijing100029 China College of Chemical Engineering and Environment China University of Petroleum Beijing102249 China Shenyang University of Chemical Technology Liaoning 110142 China Bohai University China

Composite membranes incorporating ionic liquids (ILs) within MXene demonstrate promising potential for CO2 separation. However, studies on the separation of CO2/CH4 using MXene-confined ILs membranes are limited, especially in terms of understanding the mechanisms at the molecular level. In this work, the system of CO2/CH4 in MXene-confined ILs membranes was studied by molecular dynamic simulations. The number density results reveal that MXene stratifies the ILs between the layers, with higher concentrations of ILs near MXene and lower concentrations in the middle layer. Notably, MXene has a greater impact on cations distribution compared to anions. As the layer spacing of MXene expands from 1.5 to 3nm, the interaction between MXene and IL weakens, while that between the cations and anions strengthens. The confined ILs enhance gas adsorption capability but impede gas diffusion. CO2 is distributed closer to anions, while CH4 tends to be closer to cations, with the distance between CH4 and cations decreasing as the layer spacing increases. Additionally, with the increase of layer distance, the proportion of confined ILs gradually decreases, and the gas diffusion coefficient gradually increases. Furthermore, compared to [EMIM][BF4] and [EMIM][PF6], MXene-confined [EMIM][TF2N] is identified as the most effective for CO2/CH4 separation, owing to its superior CO2 dissolution and highest diffusion selectivity. © 2024, The Authors. All rights reserved.

关键词： Ionic liquids

Modulation of the cobalt species state on zincosilicate to maximize propane dehydrogenation to propylene

学校读者我要写书评

暂无评论

Chinese Journal of Catalysis 2024年第11期66卷 168-180页

作者： Hao Liu Bingxian Chu Tianxiang Chen Jie Zhou Lihui Dong Tsz Woon Benedict Lo Bin Li Xiaohui He Hongbing Ji Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education Fine Chemical Industry Research InstituteSchool of ChemistryIGCMESun Yat-sen UniversityGuangzhou 510275GuangdongChina State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology Institute of Green Petroleum Processing and Light Hydrocarbon ConversionCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014ZhejiangChina Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004GuangxiChina State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityHunghomHong KongChina Guangdong Technology Research Center for Synthesis and Separation of Thermosensitive Chemicals Guangzhou 510275GuangdongChina

Dispersing metals from nanoparticles into clusters or single atoms often exhibits unique properties such as the inhibition of structure-sensitive side ***,we reported the use of ion exchange(IE)methods and direct hydrogen reduction to achieve high dispersion of Co species on *** obtained 2Co/Zn-4-IE catalyst achieved an initial propane conversion of 41.4%at a temperature of 550℃in a 25%propane and 75%nitrogen atmosphere for propane *** of the presence of Co species within specific rings(alpha-α,beta-βand delta-δ)was obtained by aberration-corrected scanning transmission electron microscopy.A series of Fourier transform infrared spectra confirmed the anchoring of Co by specific hydroxyl groups in zincosilicate and the specific coordination environment of Co and its presence in the rings essentially as a single *** framework Zn for the modulation of the microenvironment and the presence of Co species as Lewis acid active sites(Co-O4)was also supported by density functional theory calculations.

关键词： Zincosilicate zeolite Anchoring effect Microenvironment modification Isolated Co site Propane dehydrogenation

Hollow Multishelled Structure: Synthesis Chemistry and Application

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2024年第3期40卷 346-393页

作者： MAO Dan WANG Chao LI Wei ZHOU Liang LIU Jian ZHENG Zjian ZHAO Yong CAO An-min WANG Shutao HUANG Jiaxing HUO Fengwei CHEN Hongyu MAI Liqiang YU Ranbo WANG Lianzhou LU Yunfeng YU Chengzhong YANG Qihua YANG Zhenzhong ZENG Hua Chun ZHAO Hujun TANG Zhiyong ZHAO Dongyuan WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChineseAcademy of SciencesBeijing 100190P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBejing 100190P.R.China School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong SARP.R.China Department of Chemistry Fudan UniversityShanghai 200433P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023P.R.China School of Chemistry Beihang UniversityBejing 100191P.R.China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China CAS Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190P.R.China School of Engineering Westlake UniversityHangzhou 310024P.R.China School of Flexible Electronics(Future Technologies) Nanjing Tech UniversityNanjing 211816P.R.China School of Science Westlake UniversityHangzhou 310024P.R.China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070P.R.China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083P.R.China School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia College of Life Science and Technology Bejing University of Chemical TechnologyBejing 100029P.R.China School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200241P.R.China College of Life Sciences Zhejiang Normal UniversityJinhua 321004P.R.China Department of Chemical Engineering Tsinghua UniversityBeijing 100

Hollow multishelled structure(HoMS),a promising and complex multifunctional structural system,features at least two shells that are separated by internal *** unique structure endows it with numerous advantages including low density,high loading capacity,large specific surface area,facilitated mass transport,and multiple spatial confinement *** the past twenty years,benefiting from the booming development of synthesis methods,various HoMS materials have been prepared and show promising applications in diverse areas.

关键词： Hollow multishelled structure Synthesis chemistry Energy storage Catalysis Electromagnetic wave absorption Drug delivery Sensor

Performance of Synergistic Solvent Extraction System of Bpmda and Dnnsa for Simultaneous Recovery of Nickel and Cobalt

学校读者我要写书评

暂无评论

SSRN 2023年

作者： Sharma, Bharat Prasad Li, Zheng Xiong, Jinping Wang, Tian-Zhang Liang, Yu-Feng Yang, Liangrong Beijing Key Laboratory of Electrochemical Process and Technology of Materials Beijing University of Chemical Technology Beijing100029 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemistry and Chemical Engineering Shandong University Jinan250100 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing101408 China CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Key Laboratory of Green and High-end Utilization of Salt Lake Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Simultaneous recovery of nickel and cobalt from other transition and base metals, especially trivalent Fe3+ and Al3+, is challenging. In this work, a new synergistic solvent extraction (SSX) system consisting of a novel pyridine analog, N,N-bis(pyridin-2-ylmethyl)dodecan-1-amine (BPMDA) and dinonylnaphthalene sulfonic acid (DNNSA) with tributyl phosphate (TBP) as phase modifier has been developed. The resulting SSX system has outstanding performance with high selectivity for the simultaneous recovery of nickel and cobalt. The selectivity of the system at optimum conditions has been found in the order of Co2+ (>97%) > Ni2+ (> 90 %) > Mn2+ ( Fe3+ ( Mg2+ ( Al3+ ( Ca2+ ( © 2023, The Authors. All rights reserved.

关键词： Pyridine

Efficient Separation of Co2/ch4 By Covering Ultrathin Ionic Liquid Film on Cof Membrane

学校读者我要写书评

暂无评论

SSRN 2024年

作者： Wang, Qixin Guo, Yandong Long, Yan Liu, Yawei Wang, Zhenlei Liu, Yiming Zhang, Xiaochun College of Mathematics Science Bohai University Liaoning Jinzhou121013 China Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of Education East China University of Science and Technology Shanghai200237 China Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Henan Institute of Advanced Technology Zhengzhou University Zhengzhou450000 China Qingdao University China

Covalent organic framework (COF) membranes show great potential for gas separation, but their large pore size make it hard to effectively separate gases with similar kinetic diameters. A promising strategy is to cover the surface of COF membranes with an ultrathin film of ionic liquids (ILs) to improve the selectivity of gas permeation. Here, we investigated the CO2/CH4 separation performance of composite membranes composed of COF (CTF-1) and 20 kinds of ILs, respectively, using molecular simulations. The [BMIM][PF6]/COF membrane is found to exhibit the best separation performance, with CO2 permeability up to 7.93×104 GPU and CO2/CH4 selectivity of 12.33 when the IL thickness is 8 Å. By studying the microstructure of the composite membrane, it was found that there is a relatively dispersed distribution of cations and anions on the COF surface, which is beneficial to the diffusion of gas molecules. The gas permeation process results reveal that CO2 rapidly achieves equilibrium in both the adsorption and dissolution layers simultaneously, thereby enhancing the permeation rate of gas molecules. The analysis of interaction energy and PMF indicates that the improved selectivity is due to the stronger interaction between IL and CO2 than that for CH4 © 2024, The Authors. All rights reserved.

关键词： Carbon dioxide

3D printing for tissue/organ regeneration in China

学校读者我要写书评

暂无评论

Bio-Design and Manufacturing 2025年第2期8卷 169-242,I0001,I0002页

作者： Chaofan He Jiankang He Chengtie Wu Changshun Ruan Qi Gu Yongqiang Hao Yang Wu Shuo Bai Xiaoxiao Han Liliang Ouyang Jun Yin Hongzhao Zhou Zhuo Xiong Maobin Xie Lei Shao Jing Nie Liang Ma Cijun Shuai Changchun Zhou Xin Zhao Xuetao Shi Mengfei Yu Jiayin Fu Peng Wen Huixia Xuan Yuan Pang Yan’en Wang Yuan Sun Ziqi Gao Abdellah Aazmi Jingbo Zhang Tianhong Qiao Qixiang Yang Ke Yao Mao Mao Jianxin Hao Pinpin Wang Jirong Yang Huawei Qu Xinhuan Wang Xin Liu Shen Ji Shasha Liu Jingke Fu Bingxian Lu Mohan Wu Feng Chen Zihao Zheng Boqing Zhang Muyuan Chai Chaoying Zhang Mouyuan Sun Bo Peng Huayong Yang Yong He State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Research Center for Human Tissue and Organ Degeneration Institute of Biomedicine and BiotechnologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Organ Regeneration and Reconstruction State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Shanghai Engineering Research Center of Innovative Orthopaedic Instruments and Personalized Medicine Clinical and Translational Research Center for 3D Printing TechnologyShanghai 200011China School of Biomedical Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Key Laboratory of Biopharmaceutical Preparation and Delivery Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China National Engineering Research Centre for High Efficiency Grinding Hunan UniversityChangsha 410082China Biomanufacturing Center Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China The Fourth Affiliated Hospital of Guangzhou Medical University Guangzhou 511436China School of Biomedical Engineering Guangzhou Medic

As surgical procedures transition from conventional resection to advanced tissue-regeneration technologies,human disease therapy has witnessed a great leap *** particular,three-dimensional(3D)bioprinting stands as a landmark in this setting,by promising the precise integration of biomaterials,cells,and bioactive molecules,thus opening up a novel avenue for tissue/organ *** by the editorial board of Bio-Design and Manufacturing,this review brings together a cohort of leading young scientists in China to dissect the core functionalities and evolutionary trajectory of 3D bioprinting,by elucidating the intricate challenges encountered in the manufacturing of transplantable *** further delve into the translational pathway from scientific research to clinical application,emphasizing the imperativeness of establishing a regulatory framework and rigorously enforcing quality-control ***,this review outlines the strategic landscape and innovative achievements of China in this field and provides a comprehensive roadmap for researchers worldwide to propel this field collectively to even greater heights.

关键词： 3D printing Bioprinting Tissue engineering Regenerative medicine

Span Secondary Particles Enabled High Energy Density Lithium-Sulfur Battery

学校读者我要写书评

暂无评论

SSRN 2024年

作者： Zuo, Weijing Li, Rui Wu, Xiangkun Guo, Yawei Wen, Bohua Luo, Jiayan Zhang, Lan CAS Key Laboratory of Green Process and Engineering Beijing KeyLaboratory of Ionic Liquids Clean Process State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen518055 China State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai200240 China Langfang Green Industrial Technology Center Institute of Process Engineering Chinese Academy ofSciences Hebei065001 China LongzihuNewEnergyLaboratory ZhengzhouInstituteofEmergingIndustrialTechnology Henan University Zhengzhou450000 China

High-areal-capacity electrodes and lean electrolyte are practical approaches for batteries to enhance their energy density, while it’s challenge for the lithium-sulfur batteries using nano-sized sulfurized polyacrylonitrile (SPAN) cathodes due to the sluggish charge transportation. Here, a spray-drying (SD) technique for mass production of micron-sized SPAN secondary particles (PC-SPAN) with composite coating is proposed. The composite involves polydopamine (PDA), polyacrylic acid (PAA) and polyvinyl alcohol (PVA) that physiochemically crosslinking. The rich catecholamine, hydroxyl and carboxyl groups not only construct strong and flexible adhesion among the SPAN primary particles to keep the electrode integrity, but also render built-in ion passage within the secondary particles to allow the electrode working under lean electrolyte condition. Consequently, PC-SPAN electrode with a high areal loading of 8.4 mg cm-2 delivers a higher specific capacity of 547.4 mAh g-1 at 0.3C when that of SPAN is less than 400.0 mAh g-1. In the meantime, prototype Li-SPAN battery with high energy density of 530.2 Wh kg-1 is achieved using PC-SPAN electrode with an areal capacity of 19.1 mAh cm-2 and low electrolyte/SPAN ratio of 0.93 μL mg-1, which demonstrates the feasibility of this strategy toward applicable high energy LSBs. © 2024, The Authors. All rights reserved.

关键词： Electrolytes

Inside-out assembly of viral antigens for the enhanced vaccination

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2023年第6期8卷 3144-3157页

作者： Fengqiang Cao Sha Peng Yaling An Kun Xu Tianyi Zheng Lianpan Dai Kenji Ogino To Ngai Yufei Xia Guanghui Ma State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190PR China Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and Technology2-24-16 NakachoKoganeiTokyo184-8588Japan Institute of Global Innovation Research Tokyo University of Agriculture and Technology2-24-16 NakachoKoganei-shiTokyo184-8588Japan CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing100101PR China Savaid Medical School University of Chinese Academy of SciencesBeijingPR China Key Laboratory of Tropical Translational Medicine of Ministry of Education School of Tropical Medicine and Laboratory MedicineThe First Affiliated HospitalHainan Medical UniversityHainan571199PR China Zhejiang University School of Medicine Hangzhou310058PR China Department of Chemistry The Chinese University of Hong KongShatinN.T.Hong Kong999077PR China University of Chinese Academy of Sciences Beijing100049PR China Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190PR China

Current attempts in vaccine delivery systems concentrate on replicating the natural dissemination of live pathogens,but neglect that pathogens evolve to evade the immune system rather than to provoke *** the case of enveloped RNA viruses,it is the natural dissemination of nucleocapsid protein(NP,core antigen)and surface antigen that delays NP exposure to immune ***,we report a multi-layered aluminum hydroxide-stabilized emulsion(MASE)to dictate the delivery sequence of the *** this manner,the receptor-binding domain(RBD,surface antigen)of the spike protein was trapped inside the nanocavity,while NP was absorbed on the outside of the droplets,enabling the burst release of NP before *** with the natural packaging strategy,the inside-out strategy induced potent type I interferon-mediated innate immune responses and triggered an immune-potentiated environment in advance,which subsequently boosted CD40+DC activations and the engagement of the lymph *** both H1N1 influenza and SARS-CoV-2 vaccines,rMASE significantly increased antigen-specific antibody secretion,memory T cell engagement,and Th1-biased immune response,which diminished viral loads after lethal *** simply reversing the delivery sequence of the surface antigen and core antigen,the inside-out strategy may offer major implications for enhanced vaccinations against the enveloped RNA virus.

关键词： vaccination outside evolve

One-Pot Three-Dimensional Printing Robust Self-Supporting MnO_(x)/Cu-SSZ-13 Zeolite Monolithic Catalysts for NH_(3)-SCR

学校读者我要写书评

暂无评论

CCS Chemistry 2022年第5期4卷 1708-1719页

作者： Yingzhen Wei Mengyang Chen Xiaoyu Ren Qifei Wang Jinfeng Han Wenzheng Wu Xiangguang Yang Shuang Wang Jihong Yu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012 International Center of Future Science Jilin UniversityChangchun 130012 School of Mechanical and Aerospace Engineering Jilin UniversityChangchun 130025 State Key Laboratory of Rare Earth Resource Utilization Jilin Province Key Laboratory of Green Chemistry and ProcessChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022 Henan Province Function-Oriented Porous Materials Key Laboratory College of Chemistry and Chemical EngineeringLuoyang Normal UniversityLuoyang 471934

Honeycomb cordierite coated with Cu-SSZ-13 zeolite is widely used for the selective catalytic reduction of NO_(x) with NH_(3)(NH_(3)-SCR)to reduce pollutants from vehicle ***,conventional honeycomb catalysts fabricated via coating techniques are limited by low zeolite loadings,loss of the deposited zeolites,and complicated preparation ***,a facile,one-step three-dimensional(3D)printing strategy is developed to construct MnO_(x)/Cu-SSZ-13 monolithic catalysts with excellent catalytic performance for NH_(3)-***-containing halloysite nanotubes(Fe-HNTs)are introduced as printing ink additives to ensure mechanical stability and modulate the NH_(3)-SCR performance of monolithic catalysts in high temperature *** situ incorporation of Mn into the Cu-SSZ-13 zeolite monoliths during the 3D printing process boosts the mechanical strength of the monolithic structures from 2.54 MPa to 4.33 MPa as well as broadens the temperature window(165-550℃)of the catalysts for NH_(3)-SCR with NO_(x) conversion of above 80%.Such robust multicomponent-integrated 3D-printed selfsupporting catalysts not only possess high zeolite loading and excellent catalytic activity,but also avoid complicated manufacturing processes,which contrasts with conventional honeycomb catalysts fabricated by extrusion coupled with coating.

关键词： 3D printing metal-doped Cu-SSZ-13 zeolites NH_(3)-SCR monolithic catalysts mechanical strength