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Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen Liu Xuliang Lin Xueqing Qiu Yanlin Qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and fine Chemical Engineering Jieyang center Guangdong Basic research center of Excellence for Ecological Security and Green development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Spin-modulated near-infrared-Ⅰ emission in a xanthene-decorated Fe(Ⅱ) spin-crossover complex

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Science China Chemistry 2025年

作者： Cheng Yi Duyong Chen Shihui Zhang Rui Cai Chunying Duan Yinshan Meng Tao Liu State Key Laboratory of fine chemicals Frontier Science Center for Smart Materials and Chemical Engineering School of Chemical Engineering Dalian University of Technology Instrumental Analysis center Dalian University of Technology School of Chemistry Dalian University of Technology Liaoning Binhai Laboratory

Molecular materials showing synergetic coupling of near-infrared （NIR） fluorescence and spin-crossover （SCO） are promisingly applicable in in-vivo bioimaging,temperature sensing,and spintronic *** the related study faces formidable *** this work we graft the NIR fluorophore xanthene onto the dipyridyl substituted triazole ligand and construct a new Febased SCO material,{FeⅡ（ddxc-abpt）2[N（CN）2]2}(1,ddxc-abpt:（E）-4-(((3,5-di（pyridin-2-yl）-4H-1,2,4-triazol-4-yl)imino)methyl)-N,N-diethyl-2,3-dihydro-1H-xanthen-6-amine).Magnetic studies indicate that compound 1 exhibits thermally induced SCO property in both the solid and solution ***-temperature fluorescence emission spectra reveal a remarkable 7-fold increase in photoluminescence intensity upon the transition from the low-spin state at 110 K to the high-spin state at 280 K,which is the record of all reported coupled fluorescence-SCO ***-temperature ultraviolet-visible （UV-Vis）absorption spectra show a significant change in absorption intensity within the fluorescence emission window,consistent with the F?rster resonance energy transfer （FRET） ***-dependent density functional theory （TD-DFT） calculations demonstrate that the strong coupling is attributed to disrupted energy transfer between the xanthene fluorophore and high-spin *** work provides a feasible approach for expanding the synergetic SCO-fluorescence materials to the NIR-Iwavelength region,and hopefully contributes to the applications of tunable NIR-SCO molecule-based sensors and devices.

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Sequence-activated chemiluminescence probes: programmable illumination for high-contrast in vivo sensing and imaging

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Science China Chemistry 2025年第01期 26-34页

作者： Yutao Zhang Juan Li Wei-Hong Zhu Zhiqian Guo Shanghai Key Laboratory of Functional Materials Chemistry Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry and Molecular Engineering East China University of Science and Technology State Key Laboratory of Bioreactor Engineering Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell MetabolismEast China University of Science & Technology

Sequence-activated chemiluminescence(CL) technique offers a unique approach to detecting specific biomolecules or cellular events with high sensitivity and spatial resolution. The fundamental principle behind sequence-activated CL probes involves tailoring highly-controllable CL signals in response to specific sequences or events of interest, thus enabling high-contrast signals under complex physiological conditions. This sequential activation could be triggered by enzymes, reactive oxygen species(ROS), biothiols or changes in the microenvironment. These unique sequence-activated CL probes bestow several advantages, including minimal background, deep-tissue penetration, and the ability of non-invasive or minimally invasive detection. The sequence-activated CL techniques represent a significant advancement in molecular imaging and diagnostics. In this mini-review, we focus on the latest developments in sequential CL probes, addressing the technical challenges and discussing the future trajectory by harnessing CL signaling and molecular recognition.

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Catalytic hydrogenation performance of ZIF-8 carbide for electrochemical reduction of carbon dioxide

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Chinese Journal of Chemical Engineering 2021年第11期34卷 144-153页

作者： Shuai Fan Huiyuan Cheng Manman Feng Xuemei Wu Zihao Fan Dongwei Pan Gaohong He State Key Laboratory of fine chemicals Research and Development Center of Membrane Science and TechnologySchool of Chemical EngineeringDalian University of TechnologyDalian 116024China

The conversion of CO_(2) electrocatalytic hydrogenation into energy-rich fuel is considered to be the most effective way to carbon ***-doping carbonized ZIF-8 is proposed as carrier of the earth-rich Sn catalyst to overcome the limit of electron transfer and CO_(2) adsorption capacity of *** porous structure of Sn doped carbonized ZIF-8 is controlled by hydrothermal and carbonization conditions,which induces much higher specific surface area than that of the commercial Sn nanoparticle(1003.174 vs.7.410 m^(2)·g^(-1)).The shift of nitrogen peaks in X-ray Photoelectron Spectroscopy spectra indicates interaction between ZIF-8 and Sn,which induces the shift of electron cloud from Sn to the chemical nitrogen to enhance conductivity and regulate electron transfer from catalyst to CO_(2).Lower mass transfer resistance and Warburg resistance are investigated through EIS,which significantly improves the catalytic activity for CO_(2) reduction reaction(CO_(2)RR).Onset potential of the reaction is reduced from-0.74 V to less than-0.54 V *** total Faraday efficiency of HCOOH and CO reaches 68.9%at-1.14 V ***,which is much higher than that of the commercial Sn(45.0%)and some other Sn-based catalyst reported in the literature.

关键词： Carbon dioxide Electrochemistry Selective catalytic reduction Electrochemical hydrogen pump Nitrogen-doping carbonized ZIF-8

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Synthesis and Antifungal Activity of Novel Chiral α-Aminophosphonates Containing Fluorine Moiety

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Chinese Journal of Chemistry 2006年第11期24卷 1581-1588页

作者：杨松高兴文刁春玲宋宝安金林红徐广芳张国平王伟胡德禹薛伟周霞卢平 Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Center for Research and Development of Fine Chemicals Guizhou University Guiyang Guizhou 550025 China

Chiral α-aminophosphonates were synthesized using （R） or （S）-1-phenylethylamine in the presence of BF3·Et2O under microwave irradiation in moderate to good yields. The new compounds were identified by ^1H NMR, ^19F NMR, IR and elemental analysis. Their antifungal activities were evaluated and some compounds were found to exhibit excellent antifungal activities. To the best of our knowledge, this is the first report on antifungal activity of chiral α-aminophosphonates containing fluorine moiety.

关键词： chiral aminophosphonate fluorine moiety antifungal activity microwave irradiation synthesis

Synthesis and Anticancer Activity of 2,3,4-Trimethoxyacetophenoxime Ester Containing Benzothiazole Moiety

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Chinese Journal of Chemistry 2005年第9期23卷 1236-1240页

作者：宋宝安刘新华杨松胡德禹金林红张华 Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Center for Research and Development of Fine Chemicals Guizhou University Guiyang Guizhou 550025 China

A series of 2,3,4-trimethoxyacetophenoxime esters containing benzothiazole moiety were synthesized by the reaction of oxime with acyl chloride in alkaline medium. Their structures were established by elemental analysis, IR, and ^1H NMR spectra. The bioassay tests showed that these title compounds exhibit moderate anticancer activity in vitro by MTT method and compounds 6c and 6d could inhibit ERK phosphorylation in NIH 3T3 cell induced by PDGF.

关键词： oxime ester synthesis anticancer activity

[BMIM]CI Catalyzed One-Pot Synthesis of a-Aminophospho- nate Derivatives Containing a 4-Phenoxyquinazoline Moiety under Microwave Irradiation

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Chinese Journal of Chemistry 2011年第1期29卷 109-117页

作者： Bai, Song Song, Baoan Bhadury, Pinaki S. Yang, Song Hu, Deyu Xue, Wei research and development center for fine chemicals Education Ministry Key Laboratory of Green Pesticide and Bioengineering Guizhou University Guiyang Guizhou 550025 China

[BMIM]Cl catalyzed three component Mannich-type reaction of 4-（quinazolin-4-yloxy）benzenamine and aldehyde with dialkyl phosphite under microwave irradiation has been described. The salient features of the reaction leading to new a-aminophosphonates include shorter reaction time and good yields. The method is environmentally friendly and does not require toxic catalysts or solvents. To the best of our knowledge, this is the first report for [BMIM]Cl induced one-pot synthesis of a-aminophosphonate derivatives.

关键词： quinazoline a-aminophosphonates [BMIM]Cl microwave chemistry multicomponent reaction

The control and optimization of macro/micro-structure of ion conductive membranes for energy conversion and storage

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Chinese Journal of Chemical Engineering 2016年第5期24卷 558-571页

作者： Xiaoming Yan Wenji Zheng Xuehua Ruan Yu Pan Xuemei Wu Gaohong He State Key Laboratory of fine chemicals School of Petroleum and Chemical EngineeringDalian University of Technology research and development center of Membrane Science and Technology School of Chemical EngineeringDalian University of Technology

Ion conductive membranes(ICMs)are frequently used as separators for energy conversion and storage technologies of fuel cells,flow battery,and hydrogen pump,because of their good ion-selective conduction and low electronic ***,this feature article reviews the recent studies on the development of new nonfluorinated ICMs with low cost and their macro/micro-structure *** general,these new nonfluorinated ICMs have lower conductivity than commercial perfluorinated ones,due to their poor ion transport *** ion exchange capacity(IEC)would create more continuous hydrophilic channels,thus enhancing the ***,high IEC also expands the overall hydrophilic domains,weakens the interaction between polymer chains,enhances the mobility of polymer chains,and eventually induces larger *** micro-scale expansion and macro-scale swelling of the ICMs with high IEC could be controlled by limiting the mobility of polymer *** on this strategy,some ef ficient techniques have been developed,including covalent crosslinking,semi-interpenatrating polymer network,and ***,this review introduces the optimization of macro/microstructure of both perfluorinated and nonfluorinated ICMs to improve the ***-scale multilayer composite is an ef ficient way to enhance the mechanical strength and the dimensional stability of the ICMs,and could also decrease the content of per fluorosulfonic acid resin in the membrane,thereby reducing the cost of the perfluorinated *** side chain,multiple functionalization,small molecule inducing micro-phase separation,electrospun nano fiber,and organic–inorganic hybrid could construct more ef ficient ion transport channels,improving the ion conductivity of ICMs.

关键词： Ion conductive membranes Macrostructure Microstructure Optimization

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Comparative Studies of Non-noble Metal Modified Mesoporous M-Ni-CaO-ZrO2 （M=Fe, Co, Cu） Catalysts for Simulated Biogas Dry Reforming

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Chinese Journal of Chemistry 2017年第1期35卷 113-120页

作者： Changzhen Wang Yin Zhang Yongzhao Wang Yongxiang Zhao Engineering research center of Ministry of Education for fine chemicals Shanxi University Taiyuan Shanxi 030006 China

The present work is aimed to improve the performance of Ni-based catalysts for biogas dry reforming by adding a second non-noble metal （Fe, Co, Cu） into a previously studied mesoporous Ni-CaO-ZrO2 nanocomposite. Biogas was simulated with equivalent methane and carbon dioxide for the dry reforming reaction. X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, N2 adsorption, temperature-programmed reduction （TPR）, thermogravi- metric analysis （TGA）, and transmission electron microscopy （TEM） measurements were taken to characterize the structural and textual properties of the bimetallic catalysts as well as the accumulated carbon deposition. The addition of Fe leads to a less ordering growth of mesopores of Fe-Ni-CaO-ZrO2 sample, and the existence of Cu results in a relatively larger portion of free NiO in Cu-Ni-CaO-ZrO2. Compared with Fe and Cu, the presence of Co could efficiently form a beneficial dual metal effect and enhance the strong metal support interaction between Ni and CaO-ZrO2, thus enhancing the activity and stability of the catalyst in biogas dry reforming reaction.

关键词： nickel catalyst non-noble metal modified bimetallic catalyst biogas dry reforming carbon deposition