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| 1 | Electrochemical reduction of CO_2 in solid oxide electrolysis cells显示文摘The effort on electrochemical reduction of CO_2 to useful chemicals using the renewable energy to drive the process is growing fast recently. In this review, we introduce the recent progresses on the electrochemical reduction of CO_2 in solid oxide electrolysis cells(SOECs). At high temperature, only CO is produced with high current densities and Faradic efficiency while the reactor is complicated and a better sealing technique is urgently needed. The typical electrolytes such as zirconia-based oxides, ceria-based oxides and lanthanum gallates-based oxides, anodes and cathodes are introduced in this review, and the cathode materials, such as conventional metal–ceramics(cermets), mixed ionic and electronic conductors(MIECs) are discussed in detail. In the future, to gain more value-added products, the electrolyte, cathode and anode materials should be developed to allow SOECs to be operated at temperature range of 573–873 K. At those temperatures, SOECs may combine the advantages of the low temperature system and the high temperature system to produce various products with high current densities. | Lixiao Zhang Shiqing Hu Xuefeng Zhu Weishen Yang | 2017 | Journal of Energy Chemistry2017，26，4： | 6 |
| 2 | Metal-organic framework nanosheets: a class of glamorous low-dimensional materials with distinct structural and chemical natures显示文摘Metal-organic framework nanosheets have gained great attention because of the diversified structures,tunable chemical functionalities,large surface area and ultrathin thickness.In this review,we introduce the recent progress in the favorable applications for catalysis,sensing,energy storage and gas separation,which has significantly addressed the advantages of the nanosheets.A summary of nanosheet fabrication approaches is put forward to establish a comprehension on the origin of the MOF nanosheets.And at last but not the least,we present the concerns on the challenges and opportunities of these materials from our perspectives. | Yuan Peng Weishen Yang | 2019 | Science China Chemistry2019，62，12： | 5 |
| 3 | Partial oxidation of methane to syngas in tubular oxygen-permeable reactor显示文摘A dense Ba0.5Sr0.5Co0.8Fe0.2O3-δ membrane tube was prepared by the extruding method. Furthermore, a membrane reactor with this tubular membrane was successfully applied to partial oxidation of methane (POM) reaction, in which the separation of oxygen from air and the partial oxidation of methane are integrated in one process. At 875°C, 94% of methane conversion, 98% of CO selectivity, 95% of H2 selectivity, and as high as 8.8 mL/(min·cm2) of oxygen flux were obtained. In POM reaction condition, the membrane tube shows a very good stability. | Wang Haihui Cong You Yang Weishen | 2002 | Chinese Science Bulletin2002，47，7： | 5 |
| 4 | Synthesis and pervaporation performance of high-reproducibility silicalite-1 membranes显示文摘High-reproducibility silicalite-1 membranes were synthesized on silica tubes by in-situ hydrothermal synthesis, and the relative standard deviation (R.S.D.) of average separation factor for eight membranes was only 7.5%. By using an effective method called 'solution-filling (SF)', the average flux of membranes prepared with SF method was improved by about 49% compared to membranes prepared without SF method, and the highest flux of membrane prepared with SF method towards ethanol/H2O mixture at 80℃ was 1.49 kg/(m2·h). Pervaporation experiments showed that the fluxes of silicalite-1 membranes at 60℃ were 2.63, 0.87, 0.24, and 0.20 kg/(m2·h) towards methanol/H2O, ethanol/H2O, 2-propanol/H2O, and 1-propanol/H2O mixtures, respectively, and the corresponding separation factors were 22, 69, 81, and159, respectively. | CHEN HongLiang LI YanShuo Zhu GuangQi LIU Jie YANG WeiShen | 2008 | Chinese Science Bulletin2008，53，22： | 3 |
| 5 | Partial oxidation of methane to syngas in a mixed-conducting oxygen permeable membrane reactor显示文摘Mixed-conducting oxygen permeable membranes represent a class of novel ceramic membranes, which exhibit mixed oxygen ionic and electronic conductivities. At high temperatures, oxygen can permeate through the membrane from the high to low oxygen pressure side under an oxygen concentration gradient. Theoretically, the permselectivity of oxygen is 100%. Recently, anovel mixed-conducting membrane-Ba0.5Sr0.5Coo.8Feo.2O3-δ has been developed, which showsextremely high oxygen permeability and promising stability. Furthermore, the reactor made with such membranes was successfully applied to the partial oxidation of methane to syngas reaction using air as the oxygen source, which realized the coupling of the separation of oxygen from air and the partial oxidation of membrane reaction in one process. At 850℃, methane conversion > 88%, CO selectivity >97% and oxygen permeation rate of about 7.8 mL/(cm2 ·min) were obtained. | Hui Dong Guoxing Xiong Zongping Shao Shenglin Liu Weishen Yang | 2000 | Chinese Science Bulletin2000，45，3： | 3 |
| 6 | Porous carbon layers wrapped CoFe alloy for ultrastable Zn-Air batteries exceeding 20,000 charging-discharging cycles显示文摘Developing high active and stable bifunctional electrocatalysts towards oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is essential for the development of rechargeable Zn-air batteries.Herein,a facile strategy to synthesize the porous carbon layers wrapped CoFe alloy(C/CoFe)through the pyrolysis of a homogeneous mixture containing Co,Fe ions and N-doped carbon quantum dots(Ndoped CQDs)was reported.The prepared carbon layers with multi-level pore structures provides more active sites and optimizes the homogeneity of the electron and mass transport.In addition,the carbon layers,which is doped by Co/Fe/N atoms,is responsible for high ORR activity,while the CoFe alloy plays a vital role in OER performance.The as-synthesized catalyst exhibits an excellent bifunctionality for electrochemical oxygen reactions,which is comparable to the commercial Pt/C and IrO2 benchmarks.Owing to the carbon layers protects CoFe alloy nanoparticles from the harsh environment,the rechargeable Znair battery with the C/CoFe catalyst delivers excellent stability during 20,000 charging-discharging cycles. | Fang Shi Kaiyue Zhu Xiaoke Li Erdong Wang Xuefeng Zhu Weishen Yang | 2021 | Journal of Energy Chemistry2021，30，10： | 2 |
| 7 | Perovskite-type B-site Bi-doped ceramic membranes for oxygen separation显示文摘Novel mixed conducting oxides, B-site Bi-doped perovskites were exploited and synthesized. Cubic perovskite structures were formed for BaBi0.2COyFe0.8-yO3-δ (y≤0.4) and BaBixCo0.2Fe0.8-xO3-δ (x=0.1 -0.5). The materials exhibited considerable high oxygen permeability at high temperature. The oxygen permeation flux of BaBi0.2Co0.35Fe0.45O3-δmembrane reached about0.77×106 mol/cm2 ·s under an air/helium oxygen partial pressure gradient at 900 ℃, which was much higher than that of other bismuth-contained mixed conducting membranes. The permeation fluxes of the materials increased with the increase of cobalt content, but no apparent simple relationship was found with the bismuth content. The materials also demonstrated excellent reversibility of oxygen adsorption and desorption. Stable time-related oxygen permeation fluxes were found for BaBi0.2Co0. | Zongping Shao You Cong Guoxing Xiong Shishan Sheng Weishen Yang | 2000 | Chinese Science Bulletin2000，45，10： | 2 |
| 8 | Metal-Organic Framework Membranes and Membrane Reactors:Versatile Separations and Intensified Processes显示文摘Metal-organic frameworks are an emerging and fascinating category of porous solids that can be self-assembled with metal-based cations linked by organic molecules.The unique features of MOFs in porosity(or surface areas),together with their diversity for chemical components and architectures,make MOFs attractive candidates in many applications.MOF membranes represent a long-term endeavor to convert MOF crystals in the lab to potentially industry-available commodities,which,as a promising alternative to distillation,provide a bright future for energy-efficient separation technologies closely related with chemicals,the environment,and energy.The membrane reactor shows a typical intensified process strategy by combining the catalytic reaction with the membrane separation in one unit.This review highlights the recent process of MOF-based membranes and the importance of MOF-based membrane reactors in relative intensified chemical processes. | Yujie Ban Na Cao Weishen Yang | 2020 | Research2020，，1： | 2 |
| 9 | Fast formation of NaA zeolite membrane in the microwave field显示文摘NaA zeolite membrane was successfully synthesized on the porous α-Al2O3 support by microwave heating. The synthesis of NaA zeolite membrane in the microwave field only needs 15 min and the synthesis time is 10 times shorter than that by conventional heating. SEM characterization indicates that the zeolite crystals in the NaA zeolite membrane synthesized by microwave heating are uniform in size; the membrane thickness is about 4 μm and is thinner than that of the NaA zeolite membrane synthesized by conventional heating. Gas permeation studies indicate that the permeances of the NaA zeolite membrane synthesized by microwave heating are 3-4 times higher than those of the NaA zeolite membrane synthesized by conventional heating, while their permselectivities are comparable. | Xiaochun Xu Weishen Yang Jie Liu Liwu Lin | 2000 | Chinese Science Bulletin2000，45，13： | 2 |
| 10 | Preparation of high selectivity silicalite-1 membranes by two-step in situ hydrothermal synthesis显示文摘High selectivity silicalite-1 membranes were synthesized on silica tubes by in situ hydrothermal synthesis. Using a two-step synthesis, a membrane with a separation factor of 99 was prepared for separating an ethanol/water mixture at 60°C. The average (n = 4) flux and separation factor of the membranes were 0.47 kg m-2 h-1 and 89, respectively. The membranes exhibited high reproducibility, and the relative standard deviation of the average (n = 4) flux and separation factor were only 5.3% and 9.2%, respectively. These results suggest that silica is a suitable support for synthesis of high-performance silicalite-1 membranes. | CHEN HongLiang LI YanShuo YANG JiSong HOU YongXia SONG XueYing HU XiaoJun YANG WeiShen | 2011 | Chinese Science Bulletin2011，56，33： | 2 |
| 11 | Metal-organic framework-based CO2 capture: from precise material design to high-efficiency membranes显示文摘A low-carbon economy calls for CO capture technologies.Membrane separations represent an energy-efficient and environment-friendly process compared with distillations and solvent absorptions.Metal-organic frameworks(MOFs),as a novel type of porous materials,are being generated at a rapid and growing pace,which provide more opportunities for high-efficiency CO capture.In this review,we illustrate a conceptional framework from material design and membrane separation application for CO capture,and emphasize two importance themes,namely(i)design and modification of CO-philic MOF materials that targets secondary building units,pore structure,topology and hybridization and(ii)construction of crack-free membranes through chemical epitaxy growth of active building blocks,interfacial assembly,ultrathin two-dimensional nanosheet assembly and mixed-matrix integration strategies,which would give rise to the most promising membrane performances for CO capture,and be expected to overcome the bottleneck of permeability-selectivity limitations. | Yujie Ban Meng Zhao Weishen Yang | 2020 | Frontiers of Chemical Science and Engineering2020，14，2： | 2 |
| 12 | Microwave synthesis of zeolite membranes : a review 显示文摘 | Li Yanshuo Yang Weishen | 2008 | Journal of Membrane Science2008，316，12： | 1 |
| 13 | Synthesis and Properties of A-Type Zeolite Membranes by Secondary Growth Method with Vacuum Seeding显示文摘 | Huang Aisheng Lin Yuesheng Yang Weishen | 2004 | J Membr Sci2004，245，12： | 1 |
| 14 | Molecular Sieving MFI-type zeolite membranes for pervaporation deparation of xylene isomers显示文摘 | Yuan Wenhui Lin Y S Yang Weishen | 2004 | J Am Chem Soc2004，126，： | 1 |
| 15 | Initiation of oxygen permeation and POM reaction in different mixed conducting ceramic membrane reactors 显示文摘 | Jianhua Tong Weishen Yang Hiroyuki Suda Kenji Haraya | 2006 | Catalysis Today2006，118，12： | 1 |
| 16 | Detrimental phase evolution triggered by Ni in perovskite-type cathodes for CO2 electroreduction显示文摘Perovskite oxides are popular as cathode materials of solid oxide electrolysis cells, because of their good redox stability and high resistance to coke formation.Unexpectedly, a negative effect of Ni doping is found on Sr2Fe(1.5-x)NixMo(0.5)O(x = 0, 0.05, 0.1, 0.2) cathode for pure CO2 electroreduction at 800 ℃, although Ni is highly active for CO2 electroreduction.The CO2 electroreduction performance degrades with the increase of Ni doping amount.Various characterization techniques are used to disclose the negative effect.Ni doping decreases the perovskite stability under electroreduction conditions, Fe and Ni cations in the B-site are reduced to metal nanoparticles and SrCO3 forms on the surface of the perovskite.The phase instability results from the weaker Ni–O bond.Although the Fe-Ni nanoparticles are in favor of the CO2 electroreduction, too much SrCO3 and carbon deposition block the charge transfer and diffusion of oxygenous species on the cathode surface. | Shiqing Hu Lixiao Zhang Huanying Liu Wenping Li Zhongwei Cao Lili Cai Yue Zhu Xuefeng Zhu Weishen Yang | 2019 | Journal of Energy Chemistry2019，28，9： | 1 |
| 17 | Synthesis and pervaporat- ion properties of NaA zeolite membranes prepared with vacuum- assisted method 显示文摘 | Huang Aisheng Yang Weishen Liu Jie | 2007 | Separation and Purification Technology2007，56，2： | 1 |
| 18 | Initiation of oxygen permeation and POM reaction in different mixed conducting ceramic membrane reactors 显示文摘 | Jianhua Tong Weishen Yang Hiroyuki Suda Kenji Haraya | 2006 | Catalysis Today2006，118，12： | 1 |
| 19 | Novel and Ideal Zirconium-Based Dense Membrane Reactors for Partial Oxidation of Methane to Syngas显示文摘 | Jianhua Tong Weishen Yang Rui Cai Baichun Zhu Liwu Lin | 2002 | Catalysis Letters (-)2002，，1： | 1 |
| 20 | A study by in situ techniques of the thermal evolution of the structure显示文摘 | Weishen Yang Yongman Kim Paul K T Liu | 2002 | Chemical Engineering Science2002，57，： | 1 |
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