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Synthesis, Characterization and Luminescent Properties of Two Copper(Ⅰ) Complexes Based on 2,2？-Biquinoline and Phosphorous Ligand

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Chinese Journal of Structural Chemistry 2018年第8期37卷 1313-1322页

作者：孙凌志王宇林森刘建明李中峰张江威金琼花 Department of Chemistry Capital Normal University School of Mathematical Sciences Peking University gold catalysis research center State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of Sciences

Three new copper（Ⅰ） complexes, namely [Cu（DPEphos）（Biq）]CF3SO3（1） and [Cu（PPh3）2（Biq）]CF3SO3（2） and [Cu（PPh3）2（Biq）]ClO4（3）（DPEphos = bis[2-（diphenylphosp hino）phenyl]ether, PPh3 = triphenylphosphine and Biq = 2,2A-biquinoline）, are synthesized and characterized by IR, ~1H NMR, ^（31） P NMR, fluorescence spectra and terahertz time-domain spectroscopy（THz-TDS）. Complex 1 crystallizes in triclinic, space group P1 with a = 12.6997（5）, b = 13.2813（5）, c = 15.3593（6） A, α = 80.211（3）°, β = 88.752（3）°, γ = 70.113（3）°, V = 2398.85（15） A^3, C（55）H（41.2）CuF3N2O（4.6）P2S, Mr = 1018.27, Z = 2, Dc = 1.410 g/cm3, F（000） = 1048, μ = 0.628 mm-1, the final R = 0.0450 and w R = 0.1105 for 9419 observed reflections（I 〉 2σ（I））. Complex 2 crystallizes in monoclinic, space group C2/c with a = 19.9961（7）, b = 15.9774（5）, c = 17.7908（6） A, β = 119.758（4）°, V = 4982.8（3） A^3, C（56.47）H（47.88）CuF3N2O（4.47）P2S, Mr = 1040.54, Z = 4, Dc = 1.387 g/cm^3, F（000） = 2154, μ = 0.606 mm-1, the final R = 0.0430 and w R = 0.1218 for 4897 observed reflections（I 〉 2σ（I））. Complex 3 crystallizes in monoclinic, space group C2/c with a = 19.7534（8）, b = 15.0797（5）, c = 17.8097（7） A, β = 116.400（5）°, V = 4751.8（3） A^3, C（56）H（45）ClCuN3O4P2, Mr = 984.88, Z = 4, Dc = 1.377 g/cm^3, F（000） = 2040, μ = 0.635 mm-1, the final R = 0.0731 and w R = 0.2180 for 4670 observed reflections（I 〉 2σ（I））. In the emission spectra, shifts of emission peak are derived from ligand-centered（π-π＊） transition.

关键词： copper crystal structures 2 2'-biquinoline luminescence

Designing long lifespan aqueous Zn-ion battery by learning from natural ion channels

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National Science Review 2024年第8期11卷 55-56页

作者： Huijun Zhao Centre for catalysis and Clean Energy Gold Coast Campus Griffith University

Aqueous Zn-ion batteries (AZIBs) have been regarded as an indispensable class of energy storage devices for sustainable energy systems because of their low cost, considerable storage capacity and rate capability, environmentally friendly nature, and importantly, high safety characteristics even when damaged or under extreme environmental conditions.

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Synthesis and structure of Au_(19)Ag_4(S-Adm)_(15) nanocluster:Polymorphs and optical properties

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Chinese Chemical Letters 2021年第1期32卷 565-568页

作者： Xuemei Fu Xinzhang Lin Xiuqing Ren Hengjiang Cong Chao Liu Jiahui Huang gold catalysis research center State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China College of Chemistry and Molecular Sciences Engineering Research Center of Organosilicon Compounds&MaterialsMinistry of EducationWuhan UniversityWuhan 430072China

Polymorphism is a common phenomenon in ***,we report one-pot wet chemical method to synthesize two polymorphs of Au_(19)Ag_(4)(S-Adm)_(15) nanocluster protected by 1-adamantanethiol(HSAdm),which adopt P-1 and P2_(1)/c space group *** crystal structures of two polymorphs were determined by X-ray *** to the previously reported Au_(19)Ag_(4)(S-Adm)_(15)nanocluster adopting P2_(1)/n space group,polymorphs of Au_(19)Ag_(4)(S-Adm)_(15) with P-1 and P2_(1)/c space group show the different optical *** r,Au_(19)Ag_(4)(S-Adm)_(15) with P-1 space group exhibits good thermal ***,we investigated the effect of solvent and molar ratio of metal precursors on the *** work provides an insight to polymorphs of metal nanoclusters.

关键词： Au_(19)Ag_4(S-Adm)_(15) Alloy nanocluster Polymorph Fluorescence Thermal stability

Synthesis gas production using oxygen storage materials as oxygen carrier over circulating fluidized bed

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Journal of Rare Earths 2008年第1期26卷 76-80页

作者：代小平余长春李然家吴琼郝郑平 The Key Laboratory of catalysis CNPC University of Petroleum The Key Laboratory of catalysis CNPC University of Petroleum research center for Eco-Environmental Science Chinese Academy of Sciences

A novel process for synthesis gas production over Circulating Fluidized Bed （CFB） using oxygen storage materials as oxygen carder was reported. First, oxygen in the air was chemically fixed and converted to lattice oxygen of oxygen storage materials over regenerator, and then methane was selectively oxidized to synthesis gas with lattice oxygen of oxygen storage materials over riser reactor. The results from simulation reaction of CFB by sequential redox reaction on a fixed bed reactor using lanthanum-based perovskite LaFeO3 and La0.8Sr0.2Fe0.9CO0.1O3 oxides prepared by sol-gel, suggested that the depleted oxygen species could be regenerated, and methane could be oxidized to synthesis gas by lattice oxygen with high selectivity. The partial oxidation of methane to synthesis gas over CFB using lattice oxygen of the oxygen storage materials instead of gaseous oxygen should be possibly applicable.

关键词： oxygen storage materials air separation partial oxidation synthesis gas circulating fluidized bed rare earths

DEA/TEAOH templated synthesis and characterization of nanostructured NiAPSO-34 particles:Effect of single and mixed templates on catalyst properties and performance in the methanol to olefin reaction

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Particuology 2015年第2期13卷 69-81页

作者： Parisa Sadeghpour Mohammad Haghighi Chemical Engineering Faculty Sahand University of Technology Reactor and catalysis research center(RCRC) Sahand University of Technology

A nanostructured NiAPSO-34 catalyst was hydrothermally synthesized and the effect of the template （diethylamine （DEA）, tetraethylammonium hydroxide （TEAOH） and DEA/TEAOH） on the physicochemical properties and catalytic performance in the methanol to olefin （MTO） reaction was investigated. The samples were characterized by X-ray diffraction, field emission scanning electron microscopy （FESEM）, particle size distribution analysis, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller anal- ysis and Fourier transform infrared spectroscopy. The X-ray diffraction patterns indicated a higher crystallinity and larger crystallite size for the catalyst synthesized using the DEA template. The FESEM results indicated that the nature of the template could affect the morphology of the nanostructured NiAPSO-34 catalyst because of its effect on the rate of crystal growth. The catalytic performance of the samples was studied in the MTO reaction at atmospheric pressure and a space velocity of 4200 cm^3 /（g h^-1 ） in a fixed bed reactor. The stability and activity of the NiAPSO-34 catalyst were improved using the DEA template because of its higher crystallinity, surface area and the greater extent of Ni incorporation into its framework. The possible stages of synthesis and the reaction mechanism for the MTO process over NiAPSO-34 are discussed in detail.

关键词： NiAPSO-34 DEA TEAOH Methanol Olefins MTO

Exploration of chromene-based BioAIEgens

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National Science Review 2024年第3期11卷 47-48页

作者： Fritz E.Kühn Department of Chemistry&catalysis research center School of Natural Sciences Technical University of Munich

Photoemission efficiency is usually higher in solution than in solid *** compounds however, display a reverse behavior. Such a behavior is called aggregation-induced emission(AIE).

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Effect of calcination temperature and reaction conditions on methane partial oxidation using lanthanum-based perovskite as oxygen donor

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Journal of Rare Earths 2008年第3期26卷 341-346页

作者：代小平余长春李然家吴琼史凯娇郝郑平 The Key Laboratory of catalysis CNPC University of Petroleum research center for Eco-Environmental Science Chinese Academy of Sciences Beijing 100085 China research center for Eco-Environmental Science Chinese Academy of Sciences

We investigated the effect of calcination temperature, reaction temperature, and different amounts of replenished lattice oxygen on the partial oxidation of methane （POM） to synthesis gas using perovskite-type LaFeO3 oxide as oxygen donor instead of gaseous oxygen, which was prepared by the sol-gel method, and the oxides were characterized by XRD, TG/DTA, and BET. The results indicated that the particle size increased with the calcination temperature increasing, while BET and CH4 conversion declined with the calcination temperature increasing using LaFeO3 oxide as oxygen donor in the absence of gaseous oxygen. CO selectivity remained at a high level such as above 92%, and increased slightly as the calcination temperature increased. Exposure of LaFeO3 oxides to methane atmosphere enhanced the oxygen migration of in the bulk with time online owing to the loss of lattice oxygen and reduction of the oxidative stated Fe ion simultaneously, The high reaction temperature was favorable to the migration of oxygen species from the bulk toward the surface for the synthesis gas production with high CO selectivity. The product distribution and evolution for POM by sequential redox reaction was determined by amounts of replenished lattice oxygen with gaseous oxygen. The optimal process should decline the total oxidation of methane, and increase the selectivity of partial oxidation of methane.

关键词： perovskite LaFeO3 lattice oxygen synthesis gas redox reaction rare earths

Mechanistic insight into the synergy between nickel single atoms and nanoparticles on N-doped carbon for electroreduction of CO2

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Journal of Energy Chemistry 2025年第1期100卷 327-336页

作者： Mingdong Sun Wenwen Guan Cailing Chen Chao Wu Xiaoling Liu Biao Meng Tao Chen Yu Han Jun Wang Shibo Xi Yu Zhou State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Advanced Membranes and Porous Materials center Physical Sciences and Engineering Division King Abdullah University of Science and Technology Institute of Sustainability for Chemicals Energy and Environment A*STAR (Agency for Science Technology and Research) College of Materials Science and Engineering Sichuan University

The synergy of single atoms （SAs） and nanoparticles （NPs） has demonstrated great potential in promoting the electrocatalytic carbon dioxide reduction reaction （CO2RR）;however,the rationalization of the SAs/NPs proportion remains one challenge for the catalyst ***,a Ni2+-loaded porous poly（ionic liquids）(PIL) precursor synthesized through the free radical self-polymerization of the ionic liquid monomer,1-allyl-3-vinylimidazolium chloride,was pyrolyzed to prepare the Ni,N co-doped carbon materials,in which the proportion of Ni SAs and NPs could be facilely modulated by controlling the annealing *** catalyst Ni-NC-1000 with a moderate proportion of Ni SAs and NPs exhibited high efficiency in the electrocatalytic conversion of CO2into *** Ni K-edge X-ray absorption near-edge structure （XANES） spectra and theoretical calculations were conducted to gain insight into the synergy of Ni SAs and *** charge transfer from Ni NPs to the surrounding carbon layer and then to the Ni SAs resulted in the electron-enriched Ni SAs active *** the electroreduction of CO2,the coexistence of Ni SAs and NPs strengthened the CO2activation and the affinity towards the key intermediate of*COOH,lowering the free energy for the potential-determining*CO2→*COOH step,and therefore promoted the catalysis efficiency.

关键词： Single atom catalyst Synergy effect Carbon catalyst Electrocatalysis

纤维素催化转化为高附加值化学品的研究进展(英文)

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催化学报 2011年第5期32卷 716-722页

作者： Hirokazu KOBAYASHI Atsushi FUKUOKA catalysis research center Hokkaido University

Currently,under huge pressure from energy demands and environmental problems,much attention is being paid to biomass conversion,which will play an important role in meeting the requirements for a sustainable *** the most abundant biomass on earth, cellulose is usually used as the first research target for biomass *** this review,the recalcitrant structure of cellulose is discussed and non-catalytic hydrolysis by hot-compressed water and catalytic hydrolysis using solid acids are then *** also review the catalytic conversion of cellulose into valuable chemicals including hexitols(sorbitol and mannitol),ethylene glycol,and related compounds using various heterogeneous catalysts.

关键词： biomass cellulose heterogeneous catalyst glucose sorbitol hot-compressed water hydrolysis hydrogenation