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Interfacial assembly of a series of Cu(Ⅱ)-coordinated Schiff bases complexes:Orderly nanostructures and supramolecular chirality

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Science China(Technological Sciences) 2013年第1期56卷 20-24页

作者： JIAO TiFeng LI XuHui ZHANG QingRui LI QiuRong ZHOU JingXin gao faming Hebei Key Laboratory of Applied Chemistry School of Environmental and Chemical EngineeringYanshan University State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences

Four achiral Cu(Ⅱ)-coordinated Schiff bases complexes containing aromatic structures were synthesized and their supramolecular assemblies at the air/water interface were *** the compounds could be spread on water surface although they have no alkyl *** Schiff base complex molecules with naphthyl groups tended to form J-aggregate in the Langmuir-Blodgett(LB) films transferred from water *** investigation of atomic force microscopy,a multilayer film or three-dimensional structures were *** was interesting to note that the LB films of achiral compound Cu-NA with naphthyl segment and without methyl groups transferred from water surface showed *** supramolecular chirality in the present LB films was suggested to be due to a cooperative stereoregular-stacking of the functional groups in a helical *** research work provides a helpful clue for regulating the nanostructures and supramolecular chiral assembly in organized films.

关键词： interfacial assembly Langmuir-Blodgett film supramolecular chirality Schiff base

Simultaneous structure and luminescence property control of barium carbonate nanocrystals through small amount of lanthanide doping

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Science Bulletin 2017年第18期62卷 1239-1244页

作者： Jianmin Gu Zhenpan Bian Baipeng Yin Cuihong Jin Xin Liu Yahui gao Jingxiao Wu Shoufeng Tang faming gao Yong Sheng Zhao Hebei Key Laboratory of Applied Chemistry School of Environmental and Chemical Engineering Yanshan University Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences

Rare earth doping has been widely applied in many functional nanomaterials with desirable properties and functions,which would have a significant effect on the growth process of the ***,the controlling strategy is limited into high concentration of lanthanide doping,which produces concentration quenching of the lanthanide ion luminescence with an increase in the Ln^(3+)concentration,resulting in lowering the fluorescence quantum yield of lanthanide ***,for the first time,we demonstrate simultaneous control of the structures and luminescence properties of BaCO_3nanocrystals via a small amount of Tb^(3+)doping *** fact,Tb^(3+)would partially occupy Ba^(2+)sites,resulting in the changes to the structures of the BaCO_3nanocrystals,which is primarily determined by charge modulation,including the contributions from the surfaces of crystal nuclei and building *** structurally modified nanocrystals exhibit tunable luminescence properties,thus emerging as potential candidates for photonic devices such as light-emitting diodes and color displays.

关键词： Lanthanide doping Small amount of doping Structure control Luminescence property Barium carbonate nanocrystals

A universal synthesis of N,S,Cl-doped carbon materials directly from dye waste liquid for high performance lithium storage

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Waste Disposal and Sustainable Energy 2021年第2期3卷 107-115页

作者： Junshuang Zhou Kuo Wei Lina Tian Zhuoran Hao Ying Bian Yuanzhe Wang faming gao Hebei Key Laboratory of Applied Chemistry School of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China

The complicated structured dyes produced by the textile industry have become a serious problem in the last few decades,which can be attributed to their stable chemical structures and difficult to ***,in this article,we described a method to fix dye macromolecules by flocculation process and then transform the colloid to N,S,Cl-doped porous carbon *** material can effectively improve the capacity and cycle stability of lithium ion batteries,and recycle the dyes in the *** N,S,Cl-doped porous carbon materials show a superior electrocatalytic performance of 473.5 mAhg^(−1) at the current density of 100 mAg^(−1) after 60 *** present work combines the lithium ion batteries with dyes waste treatment and has a broad prospect for development.

关键词： N,S-doped porous carbon Waste dye Lithium ion batteries

Identifying the Zn-Co binary as a robust bifunctional electrocatalyst in oxygen reduction and evolution reactions via shifting the apexes of the volcano plot

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Journal of Energy Chemistry 2021年第4期30卷 162-168页

作者： Jing Wang Rui Xu Yuling Sun Qian Liu Meirong Xia Yan Li faming gao Yufeng Zhao John S.Tse Key Laboratory of Applied Chemistry Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource ReuseSchool of Environmental and Chemistry EngineeringYanshan UniversityNo.438Hebei St(W)Qinhuangdao 066004HebeiChina Institute of Sustainable Energy/College of Science Shanghai UniversityShanghai 200444China Department of Physics and Engineering Physics University of SaskatchewanSaskatoonSK S7N 5B2Canada

The performance of an electrocatalyst is closely correlated with the binding strength of key oxygencontaining intermediates,i.e.,*OOH,*O and*OH,in the oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).Facile strategies to achieve favorable binding strength of these oxygen-containing species are urgently demanded,yet it still remains great ***,the Zn-Co bimetallic isolation,which serves as an ideal model,is studied systematically by the density functional theory(DFT).Reaction activity volcano plots are built from 48 models,among them the ZnCoN6-gra(I)configuration is confirmed to be the most stable,featured of the strongest interaction with the oxygen-containing *** △G*O(free energy change of an atomic oxygen containing intermediate)is facilitated,which effectively drifts the volcano peaks of ORR and OER closer to each other,enabling promising bifunctional ***,the small overpotential in the simulation of protonation and oxidation by hydroxy groups rationalizes the durability of the catalyst in both acid and alkaline media.

关键词： Single-atom catalyst Oxygen reduction Electrocatalysis DFT Reaction volcano

2D phosphides heterostructures on titanium microfiltration membrane for enhanced ampere-level current density overall seawater splitting

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Nano Research 2025年第1期18卷 249-259页

作者： Wenjing Dai Xin Wang Yulong Ma Sisi He Ming Chen Zhaohui Yin Shuheng Tian Maolin Wang Shixiang Yu Hang Zhang Yuanzhe Wang Hong Wang Jianxin Li faming gao Bowen Cheng Yun Wang Zhen Yin Ding Ma Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization College of Chemical Engineering and Materials ScienceTianjin University of Science and TechnologyTianjin 300457China State Key Laboratory of Biobased Fiber Manufacturing Technology Tianjin University of Science and TechnologyTianjin 300457China Haian Institute of High-Tech Research Nanjing UniversityHaian 226600China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Separation Membranes and Membrane Processes Separation Membrane Science and Technology International Joint Research CentreTiangong UniversityTianjin 300387China Centre for Catalysis and Clean Energy School of Environment and ScienceGold Coast CampusGriffith UniversitySouthportQueensland 4222Australia

The advancement of direct seawater electrolysis is a significant step towards sustainable hydrogen production,addressing the critical need for renewable energy sources and efficient resource ***,direct seawater electrolysis has to face several challenges posed by the corrosiveness of highly concentrated chloride and the competitive chlorine evolution reaction(ClER).To overcome these issues,we designed a novel NiP_(2)@CoP electrocatalyst on a porous titanium microfiltration(Ti MF)*** obtained bifunctional NiP_(2)@CoP catalyst outperforms the Pt/C and IrO_(2),as evidenced by its low overpotentials of 192 and 425 mV at a current density of 500 mA·cm^(-2) for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)in alkaline seawater(1 M KOH+0.5 M NaCl),***,only 231 and 569 mV overpotentials are required at the current density of 1500 mA·cm^(-2) towards HER and OER in alkaline seawater,*** importantly,no ClER was observed,demonstrating its excellent selectivity to *** selection of porous Ti MF membrane as an electrode substrate further enhances the performance by providing a robust structure that promotes the fast generation and release of gas *** promising outcomes obtained with NiP_(2)@CoP catalysts on Ti MF support,therefore,pave the way for the commercial viability of direct seawater electrolysis technologies at industrial-level current densities.

关键词： direct seawater electrolysis porous titanium microfiltration membrane phosphides heterostructures NiP_(2)@CoP electrocatalyst excellent selectivity to oxygen evolution reaction(OER)

Calculation of chemical bond parameters and Mssbauer isomer shift for layered crystals

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Calculation of chemical bond parameters and Mssbauer isome...

Identifying quasi-2D and 1D electrides in yttrium and scandium chlorides via geometrical identification

第十二届全国穆斯堡尔谱学会议

作者： faming gao Lihua gao Key Laboratory of Applied Chemistry Yanshan University

The chemical environmental factor was defined with the covalency and polarizability of a *** the factor can effectively describe the change trends of the chemical shifts in the above spectra,the bond nature of the chemical shifts was *** clear quantitative relations between the environmental factors and Mssbauer isomer shift of various ions such asFe andSn were *** can predict the isomer shifts in all kinds of complex crystals by using this *** the one hand,these relations will be useful for us to analyze Mssbauer spectroscopy,or otherwise,the experiments in Mssbauer spectroscopy can verify validity of the chemical bond dielectric theory for the complex *** this paper,a calculation method which was more suitable to calculate the chemical bond parameters of layered crystals was proposed based on the dielectric theory of complex *** the method,we calculated the chemical bond parameters and Mssbauer isomer shift values of lanthanide layered superconductors and a few of ferric ***,the chemical bond parameters and refractive index values of other crystals with different structures have also been *** quantitative relationship between isomer shift,refractive index and chemical bond parameters were *** calculated results indicated that the change of crystal parameters and bond length will alter the covalency of chemical bond and peripheral electron density of Fenuclear,which in turn leads to the change of the isomer shift and refractive *** good agreement between the calculated results and available experimental data proved the accuracy and universality of the theory.

关键词： Mssbauer isomer shift Chemical bond parameters Layered structure

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npj Computational Materials 2018年第1期4卷 17-25页

作者： Biao Wan Yangfan Lu Zewen Xiao Yoshinori Muraba Junghwan Kim Dajian Huang Lailei Wu Huiyang Gou Jingwu Zhang faming gao Ho-kwang Mao Hideo Hosono Key Laboratory of Metastable Materials Science and Technology College of Material Science and EngineeringYanshan University066004 QinhuangdaoChina Center for High Pressure Science and Technology Advanced Research 100094 BeijingChina Materials Research Center for Element Strategy Tokyo Institute of Technology4259 NagatsutachoMidori-ku Yokohama226-8503 KanagawaJapan Laboratory for Materials and Structures Institute of Innovative ResearchTokyo Institute of TechnologyMailbox R3-44259 Nagatsuta-choMidori-ku226-8503 YokohamaJapan Key Laboratory of Applied Chemistry College of Environmental and Chemical EngineeringYanshan University066004 QinhuangdaoChina Geophysical Laboratory Carnegie Institution of Washington5251 Broad Branch Road NWWashingtonDC 20015USA

Developing and understanding electron-rich electrides offers a promising opportunity for a variety of electronic and catalytic *** a geometrical identification strategy,here we identify a new class of electride material,yttrium/scandium chlorides Y(Sc)_(x)Cl_(y)(yx<2).Anionic electrons are found in the metal octahedral framework *** diverse electronic dimensionality of these electrides is quantified explicitly by quasi-two-dimensional(2D)electrides for[YCl]^(+)∙e−and[ScCl]^(+∙)e−and one-dimensional(1D)electrides for[Y_(2)Cl_(3)]^(+)∙e−,[Sc_(7)Cl_(10)]^(+)∙e−,and[Sc5Cl8]2+∙2e−with divalent metal elements(Sc^(2+):3d^(1) and Y^(2+):4d^(1)).The localized anionic electrons were confined within the inner-layer spaces,rather than inter-layer spaces that are observed in A_(2)B-type 2D electrides,***_(2)***,when hydrogen atoms are introduced into the host structures to form YClH and Y2Cl3H,the generated phases transform to conventional ionic compounds but exhibited a surprising reduction of work function,arising from the increased Fermi level energy,contrary to the conventional electrides reported so far.Y_(2C)l_(3) was experimentally confirmed to be a semiconductor with a band gap of 1.14 *** results may help to promote the rational design and discovery of new electride materials for further technological applications.

关键词： yttrium quasi rational

Mossbauer isomer shifts and chemical bond properties of rare earth orthoferrites

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Mossbauer isomer shifts and chemical bond properties of rare...

Photoresponsive organogel and organized nanostructures of cholesterol imide derivatives with azobenzene substituent groups

第十一届全国穆斯堡尔谱学会议

作者： Li Hou,faming gao~*,Lihua gao (Key Laboratory of Apllied Chemistry,Yanshan University,Hebei Qinhuangdao 066004)

Rare earth(RE) orthoferrites(REFeO) form an important class of weak ferromagnetic materials with interesting magnetic and magnetooptical *** this paper we we employ the dielectric theory of complex structure crystals to study their bonding properties,and apply the obtained chemical bond parameters to predict their hardness and Mossbauer isomer shifts.

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Progress in Natural Science:Materials International 2012年第1期22卷 64-70页

作者： Tifeng Jiao a,b,c,Yujin Wang a,Fengqing gao a,Jingxin Zhou a,faming gao a a Hebei Key Laboratory of Applied Chemistry,College of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,China b College of Chemistry & Materials Engineering,Wenzhou University,Wenzhou 325027,China c State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [a] Hebei Key Laboratory of Applied Chemistry College of Environmental and Chemical Engineering Yanshan University Qinhuangdao 066004 China [b] College of Chemistry & Materials Engineering Wenzhou University Wenzhou 325027 China [c] State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

Two new cholesterol imide derivatives with azobenzene substituent groups have been *** compounds possess headgroups of hydrogen or methyl units,*** gelation test revealed that a subtle change in the headgroup of azobenzene segment produced a dramatic change in the gelation behavior of both *** compound with headgroups of hydrogen units only gelated N,N-Dimethylformamide(DMF),while the other compound with headgroups of methyl units cannot gelate any solvent tested *** DMF gel and solution of the gelator,the reversible photoisomerization transitions by irradiation with ultraviolet(UV) and visible light are investigated by UV-vis absorption spectra,Fourier transform infrared spectrometer,scanning electron microscope,atomic force microscope,and X-ray diffraction *** UV irradiation of the gel,trans-cis photoisomerization of the azobenzene groups occurs,the change in molecular polarity leads to the breaking of van der Waals interactions,resulting in the gel-sol *** gel can be recovered by the reverse cis-trans photoisomerization after exposure to visible *** and spectral studies reveal that the gelator molecules selfassemble into one-dimensional fibers,which further crossed-linked to form regular *** results afford useful information for the development of new versatile low molecular mass gelators and soft matter.

关键词： Organogel Cholesterol Azobenzene Photoisomerization Soft material