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Low-energy adsorptive separation by zeolites

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National Science Review 2022年第9期9卷 120-134页

作者： Ruobing Bai Xiaowei Song wenfu yan Jihong Yu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University International Center of Future Science Jilin University

Separation of mixture is always necessarily required in modern industry, especially in fine chemical,petrochemical, coal chemical and pharmaceutical industries. The challenge of the separation process is usually associated with small molecules with very similar physical and chemical properties. Among the separation techniques, the commonly used high-pressure cryogenic distillation process with combination of high pressure and very low temperature is heavily energy-consuming, which accounts for the major production costs as well as 10–15% of the world's energy consumption. To this end, the adsorptive separation process based on zeolite sorbents is a promising lower-energy alternative and the performance is directly determined by the zeolite sorbents. In this review, we surveyed the separation mechanisms based on the steric, equilibrium, kinetic and ‘trapdoor' effect, and summarized the recent advances in adsorptive separation via zeolites including CO2, light olefins, C8aromatics and hydrogen isotopes. Furthermore, we provided the perspectives on the rational design of zeolite sorbents for the absolute separation of mixtures.

关键词： zeolites adsorptive separation olefin/paraffin separation CO2 separation hydrogen isotope separation

Condensed-matter chemistry:from materials to living organisms

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National Science Review 2019年第2期6卷 191-194页

作者： Ruren Xu Kui Wang Gang Chen wenfu yan State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University State Key Laboratory of Natural and Biomimetic Drugs Department of Chemical Biology School of Pharmaceutical Sciences Peking University Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education) College of Physics Jilin University

We have proposed, in a recent essay entitled ‘Towards a new discipline of condensed matter chemistry’[1], a new research field to study the functionalities and chemical reactions of condensed matter [2] with multi-level structures,characterized by strong intermolecular forces and local organizational order. In this perspective, we suggest possible ways to study their properties and reactions in relevance to specific organizational

关键词： Condensed-matter chemistry:from materials to living organisms

Defect Engineering on Carbon‑Based Catalysts for Electrocatalytic CO2 Reduction

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Nano-Micro Letters 2021年第1期13卷 56-78页

作者： Dongping Xue Huicong Xia wenfu yan Jianan Zhang Shichun Mu College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001People’s Republic of China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry and College of ChemistryJilin University2699 Qianjin StreetChangchun 130012People’s Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China

Electrocatalytic carbon dioxide(CO2)reduction(ECR)has become one of the main methods to close the broken carbon cycle and temporarily store renewable energy,but there are still some problems such as poor stability,low activity,and *** the most promising strategy to improve ECR activity is to develop electrocatalysts with low cost,high activity,and long-term ***,defective carbon-based nanomaterials have attracted extensive attention due to the unbalanced electron distribution and electronic structural distortion caused by the defects on the carbon ***,the present review mainly summarizes the latest research progress of the construction of the diverse types of defects(intrinsic carbon defects,heteroatom doping defects,metal atomic sites,and edges detects)for carbon materials in ECR,and unveil the structure-activity relationship and its catalytic *** current challenges and opportunities faced by high-performance carbon materials in ECR are discussed,as well as possible future *** can be believed that this review can provide some inspiration for the future of development of high-performance ECR catalysts.

关键词： Electrocatalytic CO2 reduction Carbon-based nanomaterials Intrinsic defects Heteroatom doping defects Metal atomic sites

The structure-directing effect of n-propylamine in the crystallization of open-framework aluminophosphates

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Science China Chemistry 2014年第1期57卷 127-134页

作者： LU HuiYing yan yan TONG XiaoQiang yan wenfu YU JiHong XU RuRen State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University

Using n-propylamine as a template,deioned water and secondary-butanol(butan-2-ol)as solvents,a three-dimensional(3D)open-framework aluminophosphate[C3NH10]·[HAl3P3O13](1)and a two-dimensional layered aluminophosphate[C3NH10]3·[Al3P4O16](2)were crystallized from the initial mixtures with compositions of Al2O3:2.4 P2O5:5.0 n-propylamine:100 H2O/butan-2-ol,*** are characterized by X-ray powder diffraction(XRD),thermogravimetric(TG),and elemental(CHN)analyses and structurally determined by single-crystal X-ray diffraction *** 1 crystallizes in the monoclinic space group P21/c with a=0.85831(13)nm,b=1.7677(3)nm,c=1.04353(12)nm,=123.887(9)°,and V=1.3143(3)*** 2 crystallizes in the monoclinic space group P21/c with a=1.1313(2)nm,b=1.4874(3)nm,c=1.8020(6)nm,=125.07(2)°,and V=2.4817(11)*** results show that the properties of solvent have a significant influence on the structure-directing effect of n-propylamine in the crystallization of the open-framework aluminophosphates.

关键词： zeolite,aluminophosphate,open-framework,hydro solvothermal synthesis,structure-directing effect

Mechanism of interfacial effects in sodium-ion storage devices

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Nano Research 2024年第3期17卷 1313-1326页

作者： Yifan Wei Lingxing Zan Huicong Xia wenfu yan Jia-Nan Zhang College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China Key Laboratory of Advanced Energy Catalytic and Functional Material Preparation of Zhengzhou City Zhengzhou 450001China Key Laboratory of Chemical Reaction Engineering of Shaanxi Province College of Chemistry&Chemical EngineeringYan’an UniversityYan’an 716000China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry and College of Chemistry Jilin UniversityChangchun 130012China

Rechargeable sodium-ion batteries(SIBs)are considered as the next-generation secondary *** performance of SIB is determined by the behavior of its electrode surface and the electrode–electrolyte interface during charging and ***,the characteristics of these surfaces and interfaces should be analyzed to realize large-scale energy storage systems with high energy density and long-cycle *** various studies have investigated the properties of electrode materials,few studies have focused on the construction of stable and efficient SIB interfaces,and even fewer have explored the mechanisms of interfacial effects;however,the strategies of regulating interfacial effects are yet to be completely ***,the results obtained thus far are insufficient to draw systematic *** present study reviews the literature on the mechanism of interfacial effects in Na+storage *** interfaces in a sodium-ion storage device include a heterogeneous interface between electrode materials,a solid electrolyte interphase,and a cathode electrolyte *** interfacial effects during the intercalation,transformation,and alloy reactions and the resulting overall battery performance were theoretically *** this review,we aim to provide a theoretical basis for optimizing the structures of electrode surface and electrode–electrolyte interface to optimize the performance of *** addition,the challenges of investigating interfacial effects and several possible helpful methods and opportunities for studying the mechanisms of interfacial effects in SIBs will be presented.

关键词： sodium-ion storage interfacial effects solid electrolyte interphase cathode electrolyte interphase

Polydopamine modified Au/FAU catalytic membrane for CO preferential oxidation

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Chinese Journal of Chemical Engineering 2019年第10期27卷 2560-2565页

作者： Li Peng Limin Wang Feng Zhu Jinyun Liu wenfu yan Xuehong Gu State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech University5 Xinmofan RoadNanjing 210009China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China

A hollow-fiber-supported stable Au/FAU catalytic membrane was successfully synthesized through a polydopamine coating modification-removal strategy and used as a flow-through catalytic membrane reactor for preferential oxidation of *** Au nanoparticles can be efficiently isolated by dopamine and the dopamine-derived carbon *** interactions between Au nanoparticles and zeolite layer support are enhanced during annealing at high temperature under an inert atmosphere.A zeolite membrane supported Au nanoparticle catalyst was obtained after the removal of carbon shells,which showed high catalytic activity and stability for the removal of CO from hydrogen.

关键词： Zeolite membrane CO oxidation Gold catalyst Surface modification

Synthesis of Pure Silica Zeolites

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Chemical Research in Chinese Universities 2022年第1期38卷 9-17页

作者： MI Zhenrui LU Tingting ZHANG Jia-Nan XU Ruren yan wenfu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012P.R.China Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang 110034P.R.China College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001P.R.China

Pure silica zeolite has become an important porous material in the chemical industry due to its excellent stability and hydrophobicity. However, there are still some problems in the synthesis process of pure silica zeolite, such as environmental pollution, complex operation and high cost. How to effectively and environmentally synthesize pure silica zeolite still remains a significant challenge. This review summarizes the pure silica zeolitetype frameworks that have been discovered currently, introduces the progresses achieved in the synthesis of pure silica zeolite and prospects the areas for future exploration in the synthesis and development of pure silica zeolite.

关键词： Pure silica zeolite Framework type Synthetic method

Synthesis, characterization and properties of ruthenium-substituted polyoxometallic acid H_6Ru(H_2O)FeW_(11)O_(39)·18H_2O with Keggin structure

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Chinese Science Bulletin 2011年第25期56卷 2679-2682页

作者： XU ShengXian WU XueFei WU QingYin yan wenfu Department of Chemistry Zhejiang University Hangzhou 310027 China School of Chemistry and Chemical Engineering Jiangxi Science and Technology Teachers' College Nanchang 330013 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130012 China

The ruthenium-substituted polyoxometallic acid H6 [Ru(H2O)FeW 11O39 ]·18H2O was synthesized by stepwise acidification and stepwise addition of solutions of the component elements, and an ion-exchange-cooling method. The product was characterized using inductively coupled plasma spectrometry (ICP), Infrared Spectroscopy (IR), Ultraviolet Spectroscopy (UV), and X-ray diffraction (XRD). The results show that this complex has the Keggin structure. The determination of the thermal stability and proton conductivity of this polyoxometallic acid was carried out by a thermogravimetric-differential thermal analysis (TG-DTA) and electrochemical impedance spectroscopy (EIS).

关键词： Keggin结构 H2O 电感耦合等离子体光谱法合成性质表征电化学阻抗谱钌

Zeolites for the separation of ethylene,ethane,and ethyne

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Frontiers of Chemical Science and Engineering 2024年第9期18卷 137-146页

作者： Binyu Wang Qiang Li Haoyang Zhang Jia-Nan Zhang Qinhe Pan wenfu yan State Key Laboratory of Inorganic Synthesis&Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China Key Laboratory of Advanced Energy Catalytic and Functional Materials Preparation College of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450012China Key Laboratory of Advanced Materials of Tropical Island Resources(Ministry of Education) School of Chemistry and Chemical EngineeringHainan UniversityHaikou 570228China

The cost-effective separation of ethylene(C_(2)H_(4)),ethyne(C_(2)H_(2)),and ethane(C_(2)H_(6))poses a significant challenge in the contemporary chemical *** contrast to the energy-intensive high-pressure cryogenic distillation process,zeolite-based adsorptive separation offers a low-energy *** review provides a concise overview of recent advancements in the adsorptive separation of C_(2)H_(4),C_(2)H_(2),and C_(2)H_(6)using zeolites or zeolite-based *** commences with an examination of the industrial significance of these compounds and the associated separation ***,it systematically examines the utilization of various types of zeolites with diverse cationic species in such separation *** then it explores how different zeolitic structures impact adsorption and separation capabilities,considering principles such as cation-πinteraction,π-complexation,and steric separation concerning C_(2)H_(4),C_(2)H_(2),and C_(2)H_(6)***,it discusses methods to enhance the separation performance of zeolites and zeolite-based adsorbents,encompassing structural design,modifications,and ion exchange ***,it summarizes current research trends and future directions,highlighting the potential application value of zeolitic materials in the field of C_(2)H_(4),C_(2)H_(2),and C_(2)H_(6)separation and offering recommendations for further investigation.

关键词： zeolite ethylene ethane cation-πinteraction π-complexation