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| 1 | Mn3O4 nanoparticles@reduced graphene oxide composite:An efficient electrocatalyst for artificial N2 fixation to NH3 at ambient conditions显示文摘Currently,industrial-scale NH3 production almost relies on energy-intensive Haber-Bosch process from atmospheric N2 with large amount of CO2 emission,while low-cost and high-efficient catalysts are demanded for the N2 reduction reaction (NRR).In this study,Mn3O4 nanoparticles@reduced graphene oxide (Mn3O4@rGO) composite is reported as an efficient NRR electrocatalyst with excellent selectivity for NH3 formation.In 0.1 M Na2SO4 solution,such catalyst obtains a NH3 yield of 17.4 μg·h^-1·mg^-1cat.and a Faradaic efficiency of 3.52% at-0.85 V vs.reversible hydrogen electrode.Notably,it also shows high electrochemical stability during electrolysis process.Density functional theory (DFT) calculations also demonstrate that the (112) planes of Mn3O4 possess superior NRR activity. | Hong Huang Feng Gong Yuan Wang Huanbo Wang Xiufeng Wu Wenbo Lu Runbo Zhao Hongyu Chen Xifeng Shi Abdullah M.Asiri Tingshuai Li Qian Liu Xuping Sun | 2019 | Nano Research2019，12，5： | 8 |
| 2 | On-line catalytic upgrading of biomass fast pyrolysis products显示文摘Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was employed to achieve fast pyrolysis of biomass and on-line analysis of the pyrolysis vapors. Four biomass materials (poplar wood, fir wood, cotton straw and rice husk) were pyrolyzed to reveal the difference among their products. Moreover, catalytic cracking of the pyrolysis vapors from cotton straw was performed by using five catalysts, including two microporous zeolites (HZSM-5 and HY) and three mesoporous catalysts (ZrO2&TiO2, SBA-15 and Al/SBA-15). The results showed that the distribution of the pyrolytic products from the four materials differed a little from each other, while catalytic cracking could significantly alter the pyrolytic products. Those important primary pyrolytic products such as levoglucosan, hydroxyacetaldehyde and 1-hydroxy-2-propanone were decreased greatly after catalysis. The two microporous zeolites were ef-fective to generate high yields of hydrocarbons, while the three mesoporous materials favored the formation of furan, furfural and other furan compounds, as well as acetic acid. | LU Qiang ZHU XiFeng LI WenZhi ZHANG Ying CHEN DengYu | 2009 | Chinese Science Bulletin2009，54，11： | 8 |
| 3 | Cocrystallization of N-donor type compounds with 5-sulfosalicylic acid:The effect of hydrogen-bonding supramolecular architectures显示文摘Benzotriazole,N,N'-dimethylpiperazine and N-methylpiperazine were applied to crystallize with 5-sulfosalicylic acid(5-H2SSA),affording three new binary molecular cocrystals [(C6H6N3+).(C7H5O6S-)].H2O(1),[(C6H16N22+)1/2.(C7H5O6S-)].H2O(2) and [(C5H14N22+).(C7H5O6S-)2].3H2O(3) under general conditions.Proton-transferring occurs from acid to nitrogen of N-donor compounds in all compounds 1,2 and 3.Analysis of the hydrogen-bonding synthons and their effects on crystal packing were also presented in the context of crystal engineering and host-guest chemistry.In compound 1,1-D infinite chains are extended to a 2-D layered architecture via strong O-H...O hydrogen bonds and then to a 3-D network by N-H...O interactions.Compound 2 and 3 both have the 1-D chain which is formed by O-H...O bonds and weak C-H...O hydrogen bonds.A common intramolecular S(6) [synthon I] ring is formed by the hydroxyl with the carboxyl group in all three compounds. | WANG Lei XU LingYan XUE RuiFeng LU XiFeng CHEN RuiXin TAO XuTang | 2012 | Science China Chemistry2012，55，1： | 8 |
| 4 | Corrosion properties of bio-oil and its emulsions with diesel显示文摘Bio-oil is a new liquid fuel but very acidic. In this study, bio-oil pyrolyzed from rice husk and two bio-oil/diesel emulsions with bio-oil concentrations of 10 wt% and 30 wt% were prepared. Tests were carried out to determine their corrosion properties to four metals of aluminum, brass, mild steel and stainless steel at different temperatures. Weight loss of the metals immersed in the oil samples was recorded. The chemical states of the elements on metal surface were analyzed by X-ray photoelectron spectroscopy (XPS). The results indicated that mild steel was the least resistant to corrosion, followed by aluminum, while brass exhibited slight weight loss. The weight loss rates would be greatly enhanced at elevated temperatures. Stainless steel was not affected under any conditions. After corrosion, increased organic deposits were formed on aluminum and brass, but not on stainless steel. Mild steel was covered with many loosely attached corrosion materials which were easy to be removed by washing and wiping. Significant metal loss was detected on surface of aluminum and mild steel. Zinc was etched away from brass surface, while metallic copper was oxidized to Cu2O. Increased Cr2O3 and NiO were presented on surface of stainless steel to form a compact passive protection film. The two emulsions were less corrosive than the bio-oil. This was due to the protection effect of diesel. Diesel was the continuous phase in the emulsions and thus could limit the contact area between bio-oil and metals. | LU Qiang ZHANG Jian ZHU XiFeng | 2008 | Chinese Science Bulletin2008，53，23： | 5 |
| 5 | Preparation and Photocatalytic Properties of g-C_3N_4 /TiO_2 Hybrid Composite显示文摘g-C3N4/TiO2 composite were prepared by hydrolysis of Ti(OC4Hn9) 4 and the precursors of g-C3N4 at room temperature and annealing in nitrogen atmosphere.X-ray diffraction results revealed that all the products were anatase structure.The chemical nature of O,N of the g-C 3N4/TiO2 were identified by X-ray photoelectron spectroscopy,presenting N-Ti-O and N-Ti-N doping status of the composite.The g-C3N4 /TiO2 composite showed better photocatalytic activity for the UV and visible-light degradation of Rhodamine B. | Xifeng Lu Qilong Wang Deliang Cui | 2010 | Journal of Materials Science & Technology2010，26，10： | 4 |
| 6 | Construction of interesting organic supramolecular structures with synthons cooperation in the cocrystals of 1H-benzotriazole and hydroxybenzoic acids显示文摘Multifunctional molecules are capable of assembling via different supramolecular synthons,or hydrogen bond motifs,between the same or different functional groups,leading to the possibility of cocrystal.Utilization of the interplay of dimensionality(1-D,2-D and 3-D),orientation of functional groups of the building blocks,influence of rigid/flexible linking groups,and weak interactions provides an interesting route for the creation of novel supramolecular architectures in the crystal lattice.N-unsubstituted 1H-benzotriazole and carboxylic acid,being self-complementary molecules,offer a broad scope of study of binary compounds based on the complementary combination of H-bonding/donating sites.We report here the construction of three extended molecular networks in cocrystals of the carboxylic acid group of the acid and the 1H-benzotriazole triazole moiety.We have been able to identify four major supramolecualr synthons that would be helpful in the prediction of structural motifs for these kinds of studies.Interestingly,these heterosynthons are strikingly similar,to those of the homosynthons of the individual functional groups.The nature of the aza groups helps to enhance the overall volume of the crystal lattice thus leading to the formation of various supramolecular assemblies.Thermal stability of these compounds has been investigated by thermogravimetric analysis(TGA) of mass loss. | WANG Lei ZHAO Lei XUE RuiYu LU XiFeng WEN YongHong YANG Yu | 2012 | Science China Chemistry2012，55，12： | 2 |
| 7 | Li-ion battery material under high pressure:amorphization and enhanced conductivity of Li_4Ti_5O_(12)显示文摘Lithium titanium oxide(Li_4Ti_5O_(12),LTO),a‘zero-strain’anode material for lithium-ion batteries,exhibits excellent cycling performance.However,its poor conductivity highly limits its applications.Here,the structural stability and conductivity of LTO were studied using in situ high-pressure measurements and first-principles calculations.LTO underwent a pressure-induced amorphization(PIA)at 26.9 GPa.The impedance spectroscopy revealed that the conductivity of LTO improved significantly after amorphization and that the conductivity of decompressed amorphous LTO increased by an order of magnitude compared with its starting phase.Furthermore,our calculations demonstrated that the different compressibility of the Li O_6 and Ti O_6 octahedra in the structure was crucial for the PIA.The amorphous phase promotes Li^+ diffusion and enhances its ionic conductivity by providing defects for ion migration.Our results not only provide an insight into the pressure depended structural properties of a spinel-like material,but also facilitate exploration of the interplay between PIA and conductivity. | Yanwei Huang Yu He Howard Sheng Xia Lu Haini Dong Sudeshna Samanta Hongliang Dong Xifeng Li Duck Young Kim Ho-kwang Mao Yuzi Liu Heping Li Hong Li Lin Wang | 2019 | National Science Review2019，6，2： | 2 |
| 8 | Overview of fuel properties of biomass fast pyrolysis oils显示文摘 | Lu Qiang Li Wenzhi Zhu Xifeng | 2009 | Energy Conversion and Management2009，50，： | 1 |
| 9 | Overview of fuel properties of biomass fast pyrolysis oils 显示文摘 | Lu Qiang Li Wenzhi Zhu Xifeng | 2009 | Energy Convers Manage2009，50，5： | 1 |
| 10 | Parallel induction of cell proliferation and inhibition of cell differentiationin hepatic progenitor cells by hepatitis B virus X gene显示文摘 | Jiayi Huang Lihong Shen Yongliang Lu Hongli Li Xifeng Zhang Daixi Hu Tao Feng Fangzhou Song | 2012 | International Journal of Molecular Medicine2012，，4： | 1 |
| 11 | Overview of fuel properties of biomass fast pyrolysis oils显示文摘 | Lu Qiang Li Wenzhi Zhu Xifeng | 2009 | Energy Conversion and Management2009，50，5： | 1 |
| 12 | Overview of fuel properties of biomass fast pyrolysis oils 显示文摘 | Lu Qiang Li Wenzhi Zhu Xifeng | 2009 | Energy Conversion and Management2009，50，5： | 1 |
| 13 | Overview of fuel properties of biomass fast pyrolysis oils 显示文摘 | Lu Qiang Li Wenzhi Zhu Xifeng | 2009 | Energy Con- version and Management2009，50，5： | 1 |
| 14 | Overview of Fuel Properties of Biomass Fast Pyrolysis Oils显示文摘 | Lu Qiang Li Wenzi Zhu Xifeng | 2009 | Energy Convers Manage2009，50，5： | 1 |
| 15 | Hydrogen-bonding directed cocrystallization of flexible piperazine with hydroxybenzoic acid derivatives:Structural diversity and synthon prediction显示文摘Four hydroxybenzoic acid building blocks,m-hydroxybenzoic acid,2,4-dihydroxybenzoic acid,2,5-dihydroxyterephthalic acid,and 5-hydroxyisophthalic acid,have been synthesized as robust cocrystallizing agents and employed in reactions with piperazine,including [(C4H12N22+).(C7H5O3)2 ](1),[(C4H12N22+).(C 7H5O4)2 ](2),[(C4H12N22+).(C8H5O62)](3),and [(C4H12N22+)1/2.(C8H5O5)].2H2O(4).Hydrogen-bonded directed assemblies of four salts were validated by single-crystal X-ray diffraction analysis.In compounds 1-4,hydroxybenzoic acids are all deprotonated and piperazine molecules are all protonated to form piperazine dications and keep the chair conformation.Thermal stability of these compounds has been investigated. | WANG Lei XUE RuiFeng XU LingYan LU XiFeng CHEN RuiXin TAO XuTang | 2012 | Science China Chemistry2012，55，7： | 1 |
| 16 | Isothermal Crystallization Kinetics and Melting Behaviour of Poly( Ethylene Terephthalate) 显示文摘 | Lu Xifeng Hay J N | 2001 | Pol- ymer2001，42，23： | 1 |
| 17 | Catalytic FastPyrolysis of Cellulose to Prepare Levoglucosenone Using Sul-fated Zirconia显示文摘 | Wang Zhi Lu Qiang Zhu Xifeng | 2011 | ChemSusChem2011，4，1： | 1 |
| 18 | Overview of fuel properties of biomass fast pyrolysis oils 显示文摘 | Lu Qiang Li Weizhi Zhu Xifeng | 2009 | Energy Conversion and Management2009，50，5： | 1 |
| 19 | Synthesis, Characterization and Gas Sensing Properties of In(OH)_3 and In_2O_3 Nanorods through Carbon Spheres Template Method显示文摘Poly-crystalline In(OH) 3 nanorods have been successfully prepared via a urea-based precipitation using the colloidal carbon spheres as the templates. After calcinations, the resulted In 2 O 3 nanorods with poly-crystalline structure were fabricated. Structure and morphology of the product were characterized by X-ray diffraction (XRD), and transmission electron microscopy (TEM). The possible formation process was schemed. The sensor gas properties towards C 2 H 5 OH and CO were examined. | Xifeng Lu Lei Zhang Hui Zhao Kai Yan Yan Cao Lumin Meng | 2012 | Journal of Materials Science & Technology2012，28，5： | 1 |
| 20 | Overview of fuel properties of biomass fast pyrolysis oils显示文摘 | Lu Qiang Li Wenzi Zhu Xifeng | 2009 | Energy Conversion and Management2009，50，5： | 1 |
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