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| 1 | Achieving high conversion of syngas to aromatics显示文摘Realizing high CO conversion and high aromatics selectivity simultaneously in syngas-to-aromatics(STA)reaction is still challenging.Herein,we report a 57.5%CO conversion along with 74%aromatics selectivity over a composite catalyst consisting of Fe/ZnCr_(2)O_(4)(Fe modified ZnCr_(2)O_(4)spinel)oxide and H-ZSM-5 zeolite.Impregnation of only 3 wt%of Fe onto ZnCr_(2)O_(4)can remarkably increase CO conversion without sacrificing the aromatics selectivity.Oxygen vacancy concentration is improved after impregnating Fe.The highly dispersed iron carbide species is formed during the reaction over Fe/ZnCr_(2)O_(4)spinel oxide.The synergistic effect of oxygen vacancy and iron carbide results in a rapid formation of abundant oxygenated intermediate species,which can be continuously transformed to aromatics in H-ZSM-5.This study provides a new insight into the design of highly efficient catalyst for syngas conversion. | Yi Fu Youming Ni Zhiyang Chen Wenliang Zhu Zhongmin Liu | 2022 | Journal of Energy Chemistry2022,31,3: | 2 |
| 2 | Functionalized lignin by grafting phosphorus-nitrogen improves the thermal stability and flame retardancy of polypropylene显示文摘 | Yu Youming Fu Shenyuan Song Ping'an | | 0,,: | 1 |
| 3 | Functionalized lignin by grafting phosphorus-nitrogen improves the thermal stability and flame retardancy of polypropylene显示文摘 | Youming Yu Shenyuan Fu Ping’an Song Xiping Luo Yongming Jin Fengzhu Lu Qiang Wu Jiewang Ye | 2012 | Polymer Degradation and Stability2012,,4: | 1 |
| 4 | Few-layered MoS_(2)anchored on 2D porous C_(3)N_(4)nanosheets for Ptfree photocatalytic hydrogen evolution显示文摘The Pt-free photocatalytic hydrogen evolution(PHE)has been the focus in the photocatalytic field.The catalytic system with the large accessible surface and good mass-transfer ability,as well as the intimate combination of co-catalyst with semiconductor is promising for the promotion of the application.Here,we have reported the design of the two-dimensional(2D)porous C_(3)N_(4)nanosheets(PCN NS)intimately combined with few-layered MoS_(2)for the high-effective Pt-free PHE.The PCN NS were synthesized based on peeling the melamine–cyanuric acid precursor(MC precursor)by the triphenylphosphine(TP)molecular followed by the calcination,mainly due to the matched size of the(100)plane distance of the precursor(0.8 nm)and the height of TP molecular.The porous structure is favorable for the mass-transfer and the 2D structure having large accessible surface,both of which are positive to promote the photocatalytic ability.The few-layered MoS_(2)are grown on PCN to give 2D MoS_(2)/PCN composites based on anchoring phosphomolybdic acid(PMo_(12))cluster on polyetherimide(PEI)-modified PCN followed by the vulcanization.The few-layered MoS_(2)have abundant edge active sites,and its intimate combination with porous PCN NS is favorable for the faster transfer and separation of the electrons.The characterization together with the advantage of 2D porous structure can largely promote the photocatalytic ability.The MoS_(2)/PCN showed good PHE activity with the high hydrogen production activity of 4,270.8μmol·h^(−1)·g^(−1)under the simulated sunlight condition(AM1.5),which was 7.9 times of the corresponding MoS_(2)/bulk C_(3)N_(4)and 12.7 times of the 1 wt.%Pt/bulk C_(3)N_(4).The study is potentially meaningful for the synthesis of PCN-based catalytic systems. | Nan Wang Dongxu Wang Aiping Wu Siyu Wang Zhihui Li Chengxu Jin Youming Dong Fanyi Kong Chungui Tian Honggang Fu | 2023 | Nano Research2023,16,2: | 1 |
| 5 | Functionalized lignin bygrafting phosphorus-nitrogen improves the thermalstability and flame retardancy of polypropylene显示文摘 | Yu Youming Fu Shenyuan | 2012 | Polymer Degradation and Stability2012,97,: | 1 |
| 6 | Functionalized lignin by grafting phosphorus-nitrogen improves the thermal stability and flame retardancy of polypropylene显示文摘 | YU Youming FU Shenyuan SONG Ping'an | 2012 | Polymer Degradation and Stability2012,97,4: | 1 |
| 7 | Performance Analysis for Multimedia Communication Systems with a Multilayer Queuing Network Model显示文摘Software performance evaluation in multimedia communication systems is typically formulated into a multi-layered client-server queuing network(MLCSQN) problem. However, the existing analytical methods to MLCSQN model cannot provide satisfactory solution in terms of accuracy, convergence and consideration of interlocking effects. To this end, this paper proposes a heuristic solving method for MLCSQN model to boost the performance prediction of distributed multimedia software systems. The core concept of this method is referred to as the basic model, which can be further decomposed into two sub-models: client sub-model and server sub-model. The client sub-model calculates think time for server sub-model, and the server sub-model calculates waiting time for client sub-model. Using a breadthfirst traversal from leaf nodes to the root node and vice versa, the basic model is then adapted to MLCSQN, with net sub-models iteratively resolved. Similarly, the interlocking problem is effectively addressed with the help of the basic model. This analytical solver enjoys advantages of fast convergence, independence on specific average value analysis(MVA) methods and eliminating interlocking effects.Numerical experimental results on accuracy and computation efficiency verify its superiority over anchors. | Xuehua Tang Zhongyuan Wang Xiaojun Li Zhen Han Zheng He Youming Fu | 2018 | China Communications2018,15,8: | 1 |
| 8 | Functionalized lignin by grafting phosphorus-nitrogen improves the thermal stability and flame retardancy of polypropylene显示文摘 | Youming Yu Shenyuan Fu Ping’an Song Xiping Luo Yongming Jin Fengzhu Lu Qiang Wu Jiewang Ye | 2012 | Polymer Degradation and Stability2012,,4: | 1 |
| 9 | A dual-bed catalyst for producing ethylene and propylene from syngas显示文摘Ethylene and propylene(C_(2)^(–)3=)are the two most demanded olefin products,which are mainly produced by thermal and catalytic cracking of petroleum-derived hydrocarbons now[1].With the depletion of petroleum resources,the use of non-petroleum resources such as natural gas,coal,biomass,even CO_(2)etc. | Youming Ni Zhaopeng Liu Peng Tian Zhiyang Chen Yi Fu Wenliang Zhu Zhongmin Liu | 2022 | Journal of Energy Chemistry2022,31,3: | 0 |
| 10 | Thermo-controlled,self-released smart wood tailored by nanotechnology for fast clean-up of highly viscous liquids显示文摘Designing highly porous materials is of great importance for liquid separation,water purification,and disinfection,such as spill oil cleaning and recycling,seawater desalting,and oil/water separation.However,a remaining challenge is to produce porous materials with the characteristics of fast absorption,continuous directional transport,and self-release of viscous liquid.Herein,a functional cellulosic composite is reported by the chemical treatment and functionalization of wood resulting in a smart wood that can thermally selfrelease and separate high viscosity oil.The smart wood has a high absorption speed of 1398 mL/(m_(2)·s)(ethylene glycol)and a maximum absorption capacity of 47.2 g/g(chloroform)due to its intrinsic vertical micro/nanoscale channel structure,low tortuosity,and high porosity.Moreover,the switchable wettability is achieved by the surface coating of poly(N-isopropylacrylamide)on the porous wood,which enables the collection and removal of oil from the oil/water mixture.The high viscosity oil can be automatically released due to the passive oil release at room temperature.The release capacity of the smart wood remains above 91%after 15 cyclic tests.We envision that this functional smart wood could be extended to a wide range of applications in smart hydrogels,microfluidics,artificial drug release,and environmental restoration. | Yahui Cai Jianfei Wu Kaili Wang Youming Dong Jundie Hu Jiafu Qu Dan Tian Jianzhang Li Qiliang Fu | 2023 | SmartMat2023,4,1: | 0 |
| 11 | Insights into the size effect of ZnCr_(2)O_(4)spinel oxide in composite catalysts for conversion of syngas to aromatics显示文摘Direct conversion of syngas to aromatics(STA)over oxide-zeolite composite catalysts is promising as an alternative method for aromatics production.However,the structural effect of the oxide component in composite catalysts is still ambiguous.Herein,we investigate the size effect by selecting ZnCr_(2)O_(4)spinel,as a probe oxide,mixing with H-ZSM-5 zeolite as a composite catalyst for STA reaction.The CO conversion,aromatics selectivity and space-time yield(STY)of aromatics are all significantly improved with the crystal size of ZnCr_(2)O_(4)oxide decreases,which can mainly attribute to the higher oxygen vacancy concentration and thus the rapid generation of more C1oxygenated intermediate species.Based on the understanding of the size-performance relationship,ZnCr_(2)O_(4)-400 with a smaller size mixing with H-ZSM-5 can achieve32.6%CO conversion with 76%aromatics selectivity.The STY of aromatics reaches as high as 4.79 mmol g_(cat)^(-1)h^(-1),which outperforms the previously reported some typical catalysts.This study elucidates the importance of regulating the size of oxide to design more efficient oxidezeolite composite catalysts for conversion of syngas to value-added chemicals. | Yi Fu Youming Ni Wenhao Cui Xudong Fang Zhiyang Chen Zhaopeng Liu Wenliang Zhu Zhongmin Liu | 2023 | Green Energy & Environment2023,8,2: | 0 |
| 12 | A recombineering system for Bacillus subtilis based on the native phage recombinase pair YqaJ/YqaK显示文摘Bacillus subtilis plays an important role in fundamental and applied research,and it has been widely used as a cell factory for the production of enzymes,antimicrobial materials,and chemicals for agriculture,medicine,and industry.However,genetic manipulation tools for B.subtilis have low efficiency.In this work,our goal was to develop a simple recombineering system for B.subtilis.We showed that genome editing can be achieved in B.subtiliis 1A751 through co-expression of YqaJ/YqaK,a native phage recombinase pair found in B.sub-tilis 168,and the competence master regulator ComK using a double-stranded DNA substrate with short ho-mology arms(100 bp)and a phosphorothioate modification at the 5′-end.Efficient gene knockouts and large DNA insertions were achieved using this new recombineering system in B.subtilis 1A751.As far as we know,this is the first recombineering system using the native phage recombinase pair YqaJ/YqaK in B.subtilis.In conclusion,this new recombineering system provides a simple and fast tool for genetic manipulation of B.sub-tilis,and it will promote studies of genome function,construction of production strains,and genome mining in B.subtilis. | Qingshu Liu Ruijuan Li Hongbo Shi Runyu Yang Qiyao Shen Qingwen Cui Xiuling Wang Aiying Li Youming Zhang Jun Fu | 2023 | Engineering Microbiology2023,3,3: | 0 |
| 13 | The emerging role of recombineering in microbiology显示文摘Recombineering is a valuable technique for generating recombinant DNA in vivo,primarily in bacterial cells,and is based on homologous recombination using phage-encoded homologous recombinases,such as Red βγ from the lambda phage and RecET from the Rac prophage.The recombineering technique can efficiently mediate homol-ogous recombination using short homologous arms(∼50 bp)and is unlimited by the size of the DNA molecules or positions of restriction sites.In this review,we summarize characteristics of recombinases,mechanism of recombineering,and advances in recombineering for DNA manipulation in Escherichia coli and other bacteria.Furthermore,the broad applications of recombineering for mining new bioactive microbial natural products,and for viral mutagenesis,phage genome engineering,and understanding bacterial metabolism are also reviewed. | Ruijuan Li Aiying Li Youming Zhang Jun Fu | 2023 | Engineering Microbiology2023,3,3: | 0 |
| 14 | PINK1-mediated Drp1^(S616) phosphorylation modulates synaptic development and plasticity via promoting mitochondrial fission显示文摘Dynamic change of mitochondrial morphology and distribution along neuronal branches are essential for neural circuitry formation and synaptic efficacy.However,the underlying mechanism remains elusive.We show here that Pink1 knockout(KO)mice display defective dendritic spine maturation,reduced axonal synaptic vesicles,abnormal synaptic connection,and attenuated long-term synaptic potentiation(LTP).Drp1 activation via ^(S616) phosphorylation rescues deficits of spine maturation in Pink1 KO neurons. | Qingtao Gao Runyi Tian Hailong Han Jesse Slone Caifang Wang Xiao Ke Tongmei Zhang Xiangyu Li Yuhong He Panlin Liao Fang Wang Ye Chen Shiqing Fu Kexuan Zhang Fangfang Zeng Yingxuan Yang Zhuo Li Jieqiong Tan Jiada Li Youming Lu Taosheng Huang Zhonghua Hu Zhuohua Zhang | 2022 | Signal Transduction and Targeted Therapy2022,7,5: | 0 |