Joint Laboratory of Advanced Adsorption and Separation Technology with Best Instruments, School of Chemical Engineering, Xi'an Jiaotong UniversityOver the past year, I have published academic papers in both international and domestic journals18Article, including Angewandte Chemie，Chemical Engineering Journal，ACS Catalysis，ACS Nano，Chem. Eng. J.，J. Mater. Chem. A Among them, there are factors with an impact factor greater than 109 Article, JCR Zone 115 Article.research fieldInvolving proton conduction, capture of sulfur dioxide and aromatic sulfides, coupled decarbonization of flue gas desulfurization, capture of SO2 in flue gas, separation of electron specific gases (SF6, NF3, CF4, Xe, Kr, etc.), separation of coalbed methane, and capture of greenhouse gas sulfur hexafluoride (SF)₆、CF₄、NF₃Multiple fields such as separation of alkanes and alkenes, photocatalytic CO2 reduction, etc. Here are some excellent articles published by the Joint Laboratory of Advanced Adsorption and Separation Technology in recent years:

List articles 1

Bipolar covalent organic framework: an attractive porous host for gas separation and anhydrous proton conduction

The research findings were published in the international journal ACS Nano under the title "Zwitterionic Covalent Organic Frameworks: Attractive Porous Host for Gas Separation and Anhydrous Proton Conductivity", with an impact factor of 15.881. The School of Chemical Engineering and Technology at Xi'an Jiaotong University is the unit for this article and is a doctoral studentFu YuFor the paperfirst author，Ma HepingResearcher forcorresponding author.

This research work utilizes covalent organic frameworks (COFs) as functional platforms and introduces both anionic and cationic functional groups into the COF pores, achieving the integration of zwitterionic concepts with porous crystalline materials. The structure of zwitterionic COFs with simultaneous arrangement of anionic and cationic sites can achieve charge density regulation in nanochannels, allowing for atomic level control of their structure and function, providing new ideas for designing functionally oriented materials. Three types of zwitterionic COF materials were designed and synthesized as porous hosts in SO₂/CO₂The fields of gas separation and anhydrous proton conduction have shown great potential for application. The positively and negatively charged groups dispersed within the pores of zwitterionic COF can serve as SO₂Two different polarity sites enable it to achieve high SO₂Adsorption capacity and prominent SO₂/CO₂Separation performance. In addition, the combination of opposite charge fragments endows the zwitterionic COF with abundant ion migration sites, enabling it to achieve excellent proton conductivity after loading with triazoles and imidazoles. The combination of theoretical calculations and dielectric constant analysis confirms that the presence of cationic and anionic groups in COF pores can effectively promote the release of protons in proton carriers. We believe that the successful combination of zwitterions in COF materials can provide unlimited possibilities for various applications of COF.

image (a) Schematic diagrams of ionic polymers, zwitterionic polymers, ionic COFs, and zwitterionic COFs; (b) Schematic diagram of the synthesis of three different structures of zwitterionic COFs (note: anionic and cationic sites are marked in blue and yellow, respectively).

List articles 2

Set a recordNickel based MOF material with CH4/N2 separation ratio for coalbed methane separation

The research findings were published in the international journal Angew. Chem. Int. Ed. (IF=15.336) under the title "Nickel Based Metal Organic Frameworks for Coal Bed Methane Purification with Record CH4/N2 Selectivity" and were selected as the cover article and hot topic paper of Angewandte Chemie. PhD student at the School of Chemical Engineering and TechnologyWang ShaominFor the paperfirst author，Yang QingyuanProfessor for this articlecorresponding authorThe School of Chemical Engineering at Xi'an Jiaotong University is the corresponding author unit of the paper.

To achieve the dual carbon goal, natural gas is currently the most realistic low-carbon clean energy source. However, China's conventional natural gas production capacity is insufficient, and unconventional natural gas such as coalbed methane needs to be developed as a supplement. Coalbed methane, commonly known as "gas", is mainly composed of methane, which is an unconventional natural gas that coexists with coal and is stored in the coal seam in an adsorbed state. China has abundant reserves of coalbed methane, with a proven reserve of about 420 billion cubic meters in 2020. However, over 70% of coalbed methane is mixed with a large amount of air during mining due to the mining technology (underground extraction), resulting in the formation of low concentration coalbed methane (methane concentration<30%) that cannot be well utilized. Low concentration coalbed methane is generally directly emitted into the atmosphere, causing resource waste and greenhouse effect. So at present, the separation and concentration technology of coalbed methane has become a bottleneck problem in the development and utilization of coalbed methane, and it is a key node that needs to be overcome. In response to the above issues, Professor Yang Qingyuan's research group from the School of Chemical Engineering at Xi'an Jiaotong University has developed a series of nickel based metal organic framework (MOF) materials, including the ultra porous MOF material Ni (ina)₂Has high selectivity for methane/nitrogen (15.8) and large adsorption capacity (46.7 cm)³/g) Fast diffusion rate of molecules (10.6-19.0 cm3g)^-1s^-1）The characteristics of this technology have effectively solved the "trade-off" effect in the field of gas separation, achieving efficient separation of methane and nitrogen in coalbed methane. Theoretical simulation calculations and single crystal structure analysis indicate that there is a strong interaction force between Ni (ina) 2 and methane molecules, which can selectively capture methane molecules from low concentration coalbed methane. In addition, Ni (ina) 2 has excellent thermal and chemical stability and can be prepared in batches, making it an ideal solid adsorbent. This work provides new ideas for the separation of coalbed methane in industry.

More exciting articles

Zwitterionic Covalent Organic Frameworks: Attractive Porous Host for Gas Separation and Anhydrous Proton Conduction

ACS Nano (IF = 18.027)

Tuning proton dissociation energy in proton carrier doped 2D covalent organic frameworks for anhydrous proton conduction at elevated temperature

J. Mater. Chem. A (IF = 14.511)

A 3D ultramicroporous porous organic frameworks for SO2 and aromatic sulfides capture with high capacity and selectivity

Chemical Engineering Journal (IF = 16.744)

Preparation of Ionic Organic Porous Polymers and Study on Their Coupled Decarbonization Properties in Flue Gas Desulfurization

Progress in Chemical Industry

Post modification of Oxo-clusters in robust Zirconium-Based metal organic framework for durable SO2 capture from flue gas

Separation and Purification Technology (IF = 9.136)

Aliphatic amine decorating metal–organic framework for durable SO2 capture from flue gas

Separation and Purification Technology (IF = 9.136)

Tuning surface inductive electric field in microporous organic polymers for Xe/Kr separation

Chemical Engineering Journal (IF = 16.744)

Enhancing Perfluorinated electron specialty gases separation selectivity in ultra-microporous metal organic framework

Separation and Purification Technology ( IF = 9.136)

Adsorption Interface-Induced H...F Charge Transfer in Ultramicroporous Metal-Organic Frameworks for Perfluorinated Gas Separation

Industrial & Engineering Chemistry Research (IF = 4.326)

HF Resistant Porous Aromatic Frameworks for Electronic Special Gases Separation

Langmuir (IF = 4.311)

Fluorine-functionalized Porous Organic Polymers for Durable F-gas Capture from Semiconductor Etching Exhaust

Macromolecules (IF = 6.057)

Fluorinated porous organic polymers for efficient recovery perfluorinated electronic specialty gas from exhaust gas of plasma etching

Separation and Purification Technology (IF = 9.136)

Fluorine-Induced Electric Field Gradient in 3D Porous Aromatic Frameworks for Highly Efficient Capture of Xe and F-Gases

ACS Appl. Mater. Interfaces (IF = 10.383)

Pore-Structure Control in Metal–Organic Frameworks (MOFs) for Capture of the Greenhouse Gas SF6 with Record Separation

Angew. Chem. Int. Ed. (IF = 16.82)

Nickel-Based Metal–Organic Frameworks for Coal-Bed Methane Purification with Record CH4/N2 Selectivity

Angew. Chem. Int. Ed. (IF = 16.82)

Amino-functionalized microporous MOFs for greenhouse gases CF4 and NF3 capture with record selectivity

ACS Applied Materials & Interfaces (IF=10.38)

Control of pore structure by the solvent effect for efficient ethane/ethylene separation

Separation and Purification Technology (IF=9.13)

Immobilizing Isatin-Schiff Base Complexes in NH2-UiO-66 for Highly Photocatalytic CO2 Reduction

ACS Catalysis (IF=13.7)