Search results for: Yanying Wei

Items from 1 to 20 out of 55 results

article

Tuning the Stacking Modes of Ultrathin Two‐Dimensional Metal–Organic Framework Nanosheet Membranes for Highly Efficient Hydrogen Separation

Shizheng Song, Wei Wang, Yali Zhao, Wufeng Wu, more

Angewandte Chemie International Edition > 62 > 45 > n/a - n/a

Two‐dimensional (2D) metal–organic framework (MOF) membranes are considered potential gas separation membranes of the next generation due to their structural diversity and geometrical functionality. However, achieving a rational structure design for a 2D MOF membrane and understanding the impact of MOF nanosheet stacking modes on membrane separation performance remain challenging tasks. Here, we report...

article

Tuning the Stacking Modes of Ultrathin Two‐Dimensional Metal–Organic Framework Nanosheet Membranes for Highly Efficient Hydrogen Separation

Shizheng Song, Wei Wang, Yali Zhao, Wufeng Wu, more

Angewandte Chemie > 135 > 45 > n/a - n/a

article

Tubular MXene/SS membranes for highly efficient H₂/CO₂ separation

Mide Luo, Zong Lu, Yali Zhao, Yufei Wang, more

AIChE Journal > 69 > 8 > n/a - n/a

Accurately constructing membranes based on two‐dimensional (2D) materials on commercial porous substrates remains a significant challenge for H₂ purification. In this work, a series of tubular 2D MXene membranes are prepared on commercial porous stainless steel substrates via fast electrophoretic deposition. Compared with other methods, such as filtration or drop coating, and so on. such preparation...

article

Fast‐current‐driven synthesis of ultrathin ZIF‐8 membrane on ceramic tube for propene/propane separation

Yali Zhao, Xiayi Yang, Jiayu Luo, Yanying Wei, more

AIChE Journal > 69 > 4 > n/a - n/a

MOF membranes are very promising in molecular separation, but it is still a challenge for industrial applications due to the complex and time‐consuming synthesis. We use the fast current‐driven synthesis (FCDS) method to achieve controlled growth of ZIF‐8 membranes on porous graphite‐coated ceramic tubes by controlling the growth time and current density. Grown for 30 min at a current density of 0...

article

C₃H₆/C₃H₈ Adsorption Behavior Study of Stiffened ZIF‐8 Prepared under an Electric Field

Luxi Lyu, Houxiao Wu, Libo Li, Yanying Wei, more

Chemie Ingenieur Technik > 94 > 1-2 > 119 - 127

Metal‐organic frameworks (MOFs) show great potential for adsorption separation. However, MOFs' flexibility may influence their adsorption behaviors. Here, for the first time we prepare ZIF‐8 powder dominated with stiffened ZIF‐8_Cm phase under an external E‐field. By comparison, we find that the flexibility of ZIF‐8 has little influence in equilibrium‐based separation behavior for C₃H₆/C₃H₈. However,...

article

A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

Zong Lu, Ying Wu, Li Ding, Yanying Wei, more

Angewandte Chemie International Edition > 60 > 41 > 22265 - 22269

A two‐dimensional (2D) laminar membrane with Li⁺ selective transport channels is obtained by stacking MXene nanosheets with the introduction of poly(sodium 4‐styrene sulfonate) (PSS) with active sulfonate sites, which exhibits excellent Li⁺ selectivity from ionic mixture solutions of Na⁺, K⁺, and Mg²⁺. The Li⁺ permeation rate through the MXene@PSS composite membrane is as high as 0.08 mol m⁻² h⁻¹,...

article

A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

Zong Lu, Ying Wu, Li Ding, Yanying Wei, more

Angewandte Chemie > 133 > 41 > 22439 - 22443

article

Antibiotics Separation with MXene Membranes Based on Regularly Stacked High‐Aspect‐Ratio Nanosheets

Zhong‐Kun Li, Yanying Wei, Xue Gao, Li Ding, more

Angewandte Chemie > 132 > 24 > 9838 - 9843

The uncontrolled release of antibiotics and pharmaceuticals into the environment is a worldwide increasing problem. Thus, highly efficient treatment technologies for wastewater are urgently needed. In this work, seven kinds of typical antibiotics (including water and alcohol soluble ones) are successfully separated from the corresponding aqueous and ethanolic solutions using highly regular laminated...

article

Antibiotics Separation with MXene Membranes Based on Regularly Stacked High‐Aspect‐Ratio Nanosheets

Zhong‐Kun Li, Yanying Wei, Xue Gao, Li Ding, more

Angewandte Chemie International Edition > 59 > 24 > 9751 - 9756

article

Oppositely Charged Ti₃C₂T_x MXene Membranes with 2D Nanofluidic Channels for Osmotic Energy Harvesting

Li Ding, Dan Xiao, Zong Lu, Junjie Deng, more

Angewandte Chemie > 132 > 22 > 8798 - 8804

Membrane‐based reverse electrodialysis (RED) is considered as the most promising technique to harvest osmotic energy. However, the traditional membranes are limited by high internal resistance and low efficiency, resulting in undesirable power densities. Herein, we report the combination of oppositely charged Ti₃C₂T_x MXene membranes (MXMs) with confined 2D nanofluidic channels as high‐performance...

article

Oppositely Charged Ti₃C₂T_x MXene Membranes with 2D Nanofluidic Channels for Osmotic Energy Harvesting

Li Ding, Dan Xiao, Zong Lu, Junjie Deng, more

Angewandte Chemie International Edition > 59 > 22 > 8720 - 8726

article

Solvent‐free route for metal–organic framework membranes growth aiming for efficient gas separation

Jiamin Hou, Xilu Hong, Sheng Zhou, Yanying Wei, more

AIChE Journal > 65 > 2 > 712 - 722

Industrial applications of membranes based on metal–organic frameworks (MOFs) are challenged by their complex fabrication procedures and poor processability, despite their huge potential for efficient gas separation. Especially, the consumption of a large amount of toxic, expensive solvent, and harsh operation by conventional solvothermal growth also make it less attractive for industrial production...

article

Inside Cover: Ultra‐Tuning of the Aperture Size in Stiffened ZIF‐8_Cm Frameworks with Mixed‐Linker Strategy for Enhanced CO₂/CH₄ Separation (Angew. Chem. Int. Ed. 1/2019)

Qianqian Hou, Ying Wu, Sheng Zhou, Yanying Wei, more

Angewandte Chemie International Edition > 58 > 1 > 2 - 2

Suppressing the linker mobility and tuning the aperture size of a MOF membrane is important to achieve promising gas sieving performance. In their communication on page 327 ff., Y. Wei, J. Caro, H. Wang et al. proposed a double strategy of “stiffening and narrowing” to prepare a roughly 500 nm thin hybrid mixed‐linker ZIF‐7x‐8 membrane with suppressed flexibility and narrowed window aperture through...

article

Ultra‐Tuning of the Aperture Size in Stiffened ZIF‐8_Cm Frameworks with Mixed‐Linker Strategy for Enhanced CO₂/CH₄ Separation

Qianqian Hou, Ying Wu, Sheng Zhou, Yanying Wei, more

Angewandte Chemie International Edition > 58 > 1 > 327 - 331

ZIF‐8 membrane has the potential for CO₂/CH₄ separation based on size exclusion. But if traditionally prepared by solvothermal methods, it shows only negligible selectivity due to the linker mobility. Here, ≈500 nm‐thin hybrid ZIF‐7_x‐8 membranes with suppressed linker mobility and narrowed window aperture are prepared by a fast current‐driven synthesis (FCDS) within 20 min. The in situ electric field...

article

Fein‐Tuning der Porengröße in versteiften ZIF‐8_Cm‐Gerüsten durch eine Mixed‐Linker‐Strategie für verbesserte permeative CO₂/CH₄‐Trennung

Qianqian Hou, Ying Wu, Sheng Zhou, Yanying Wei, more

Angewandte Chemie > 131 > 1 > 333 - 337

ZIF‐8‐Membranen könnten nach dem Prinzip des Größenausschlusses zur CO₂/CH₄‐Trennung eingesetzt werden. Wenn die ZIF‐8‐Schicht jedoch – wie üblich – solvothermal abgeschieden wird, zeigt sie aufgrund der Linker‐Mobilität nur eine geringe Trennselektivität. Wir können ≈500 nm dünne Hybrid‐ZIF‐7_x‐8‐Membranen mit unterdrückter Linker‐Mobilität und verengter Apertur durch eine schnelle gesteuerte Elektro‐Synthese...

article

Innentitelbild: Fein‐Tuning der Porengröße in versteiften ZIF‐8_Cm‐Gerüsten durch eine Mixed‐Linker‐Strategie für verbesserte permeative CO₂/CH₄‐Trennung (Angew. Chem. 1/2019)

Qianqian Hou, Ying Wu, Sheng Zhou, Yanying Wei, more

Angewandte Chemie > 131 > 1 > 2 - 2

Die Unterdrückung der Linkerbeweglichkeit und die Anpassung der Aperturgröße einer MOF‐Membran sind wichtige Faktoren, um eine gute Gastrennleistung zu erreichen. In ihrer Zuschrift auf S. 333 beschreiben Y. Wei, J. Caro, H. Wang und Mitarbeiter eine doppelte Strategie des “Versteifens und Verengens”, um eine circa 500 nm dünne hybride Mixed‐Linker‐ZIF‐7×‐8‐Membran mit unterdrückter Flexibilität und...

article

Phase-inversion synthesize of asymmetric-structured La5.5W0.6Mo0.4O11.25-δ membranes with enhanced hydrogen permeation flux

Huiqi Xie, Libin Zhuang, Yan Chen, Yanying Wei, more

Journal of Alloys and Compounds > 2017 > 729 > C > 890-896

Asymmetric-structured La_5.5W_0.6Mo_0.4O_11.25-δ (LWM) ceramic membranes were fabricated by phase-inversion process followed by sintering. Finger-like pores with distributed small pores extend through most bulk of the membrane and reduce the thickness of the dense layer. The hydrogen permeation properties of the LWM asymmetric membranes were investigated as a function of temperature and H₂ partial pressures...

article

CO2-tolerant Ni-La5.5WO11.25-δ dual-phase membranes with enhanced H2 permeability

Huiqi Xie, Libin Zhuang, Yanying Wei, Jian Xue, more

Ceramics International > 2017 > 43 > 17 > 14608- 14615

Enhancing the ambi-polar conductivity of the ceramic hydrogen permeable membrane by introducing an electron conductive metallic phase is quite effective, which is helpful for the hydrogen permeation flux improvement. To develop CO₂-tolerant hydrogen permeable membranes with better hydrogen permeability, Ni-La_5.5WO_11.25-δ (Ni-LWO) cermet membranes are fabricated. The alkaline earth metal-free ceramic...

article

Effect of the La/W ratio in lanthanum tungstate on the structure, stability and hydrogen permeation properties

Yan Chen, Yanying Wei, Huiqi Xie, Libin Zhuang, more

Journal of Membrane Science > 2017 > 542 > C > 300-306

Lanthanum tungstates are the kind of attractive mixed proton-electron conductive (MPEC) oxides, which can be used as the hydrogen permeable membrane with almost infinite hydrogen selectivity in dry hydrogen-containing atmosphere theoretically. A series of lanthanum tungstates with different La/W ratios, La_5.3WO_11.25-δ (LWO53), La_5.4WO_11.25-δ (LWO54), La_5.5WO_11.25-δ (LWO55) and La_5.6WO_11.25-δ (LWO56),...

article

CO2-stable Ce0.9Gd0.1O2−δ-perovskite dual phase oxygen separation membranes and the application in partial oxidation of methane to syngas

Jian Xue, Li Chen, Yanying Wei, Haihui Wang

Chemical Engineering Journal > 2017 > 327 > C > 202-209

To improve the chemical stability of perovskite materials (alkaline earth metal containing) in CO₂-containing atmosphere, based on the dual phase structure membranes, we prepared three CO₂-stable CGO (Ce_0.9Gd_0.1O_2−δ)-perovskite dual phase membranes, which takes the perovskite oxides as the electrons conducting phase and the fluorite CGO oxide (possesses inherently high chemical stability against CO...

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INFONA - science communication portal

Search results for: Yanying Wei

Tuning the Stacking Modes of Ultrathin Two‐Dimensional Metal–Organic Framework Nanosheet Membranes for Highly Efficient Hydrogen Separation

Tuning the Stacking Modes of Ultrathin Two‐Dimensional Metal–Organic Framework Nanosheet Membranes for Highly Efficient Hydrogen Separation

Tubular MXene/SS membranes for highly efficient H₂/CO₂ separation

Fast‐current‐driven synthesis of ultrathin ZIF‐8 membrane on ceramic tube for propene/propane separation

C₃H₆/C₃H₈ Adsorption Behavior Study of Stiffened ZIF‐8 Prepared under an Electric Field

A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

Antibiotics Separation with MXene Membranes Based on Regularly Stacked High‐Aspect‐Ratio Nanosheets

Antibiotics Separation with MXene Membranes Based on Regularly Stacked High‐Aspect‐Ratio Nanosheets

Oppositely Charged Ti₃C₂T_x MXene Membranes with 2D Nanofluidic Channels for Osmotic Energy Harvesting

Oppositely Charged Ti₃C₂T_x MXene Membranes with 2D Nanofluidic Channels for Osmotic Energy Harvesting

Solvent‐free route for metal–organic framework membranes growth aiming for efficient gas separation

Inside Cover: Ultra‐Tuning of the Aperture Size in Stiffened ZIF‐8_Cm Frameworks with Mixed‐Linker Strategy for Enhanced CO₂/CH₄ Separation (Angew. Chem. Int. Ed. 1/2019)

Ultra‐Tuning of the Aperture Size in Stiffened ZIF‐8_Cm Frameworks with Mixed‐Linker Strategy for Enhanced CO₂/CH₄ Separation

Fein‐Tuning der Porengröße in versteiften ZIF‐8_Cm‐Gerüsten durch eine Mixed‐Linker‐Strategie für verbesserte permeative CO₂/CH₄‐Trennung

Innentitelbild: Fein‐Tuning der Porengröße in versteiften ZIF‐8_Cm‐Gerüsten durch eine Mixed‐Linker‐Strategie für verbesserte permeative CO₂/CH₄‐Trennung (Angew. Chem. 1/2019)

Phase-inversion synthesize of asymmetric-structured La5.5W0.6Mo0.4O11.25-δ membranes with enhanced hydrogen permeation flux

CO2-tolerant Ni-La5.5WO11.25-δ dual-phase membranes with enhanced H2 permeability

Effect of the La/W ratio in lanthanum tungstate on the structure, stability and hydrogen permeation properties

CO2-stable Ce0.9Gd0.1O2−δ-perovskite dual phase oxygen separation membranes and the application in partial oxidation of methane to syngas

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