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火炸药学报 2024年第3期47卷 209-219,I0003页

作者： Mohammed Dourari Ahmed Fouzi Tarchoun Djalal Trache Amir Abdelaziz Roufaida Tiliouine Tessnim Barkat Weiqiang Pang Energetic Materials Laboratory(EMLab) Teaching and Research Unit of Energetic ProcessesEcole Militaire PolytechniqueBP 17Bordj El-Bahri16046AlgiersAlgeria Xi′an Modern Chemistry Research Institute Xi′an 710065China

The transition metal complexes of triaminoguanidine(TAG-M,where M=Cobalt(Co)or Iron(Fe))have been prepared.The catalytic effect of these complexes on the thermolysis of energetic composite based on nitrocellulose and diethylene glycol dinitrate,has been investigated.Extensive characterization of the resulting energetic composites was carried out using scanning electron microscopy(SEM),X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),and differential scanning calorimetry(DSC).Isoconversional kinetic analysis was performed to determine the Arrhenius parameters associated with the thermolysis of the elaborated energetic formulations.It is found that TAG-M complexes have strong catalytic effect on the thermo-kinetic decomposition of NC/DEGDN by decreasing the apparent activation energy and significantly increased the total heat release.The models that govern the decomposition processes are also studied,and it is revealed that different reaction processes are accomplished by introduction metal complexes of triaminoguanidine.Overall,this study serves as a valuable reference for future research focused on the investigation of catalytic combustion features of solid propellants.

关键词： triaminoguanidine transition metal complexes nitrocellulose diethylene glycol dinitrate catalytic effect

catalytic effect in lithium metal batteries: From heterogeneous catalyst to homogenous catalyst

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Journal of Energy Chemistry 2024年第3期90卷 305-326,I0008页

作者： Haining Fan Xuan-Wen Gao Hailong Xu Yichun Ding Shi-Xue Dou Wen-Bin Luo School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong 100872China Institute for Energy Electrochemistry and Urban Mines Metallurgy School of MetallurgyNortheastern UniversityShenyang 110819LiaoningChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghai 200000China State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710000ShaanxiChina

Lithium metal batteries are regarded as prominent contenders to address the pressing needs owing to the high theoretical capacity.Toward the broader implementation,the primary obstacle lies in the intricate multi-electron,multi-step redox reaction associated with sluggish conversion kinetics,subsequently giving rise to a cascade of parasitic issues.In order to smooth reaction kinetics,catalysts are widely introduced to accelerate reaction rate via modulating the energy barrier.Over past decades,a large amount of research has been devoted to the catalyst design and catalytic mechanism exploration,and thus the great progress in electrochemical performance has been realized.Therefore,it is necessary to make a comprehensive review toward key progress in catalyst design and future development pathway.In this review,the basic mechanism of lithium metal batteries is provided along with corresponding advantages and existing challenges detailly described.The main catalysts employed to accelerate cathode reaction with emphasis on their catalytic mechanism are summarized as well.Finally,the rational design and innovative direction toward efficient catalysts are suggested for future application in metal-sulfur/gas battery and beyond.This review is expected to drive and benefit future research on rational catalyst design with multi-parameter synergistic impacts on the activity and stability of next-generation metal battery,thus opening new avenue for sustainable solution to climate change,energy and environmental issues,and the potential industrial economy.

关键词： Energy storage and conversion Metal battery Sulfur battery Air battery catalytic effect Heterogeneous catalyst Homogeneous catalyst

From non-carbon host toward carbon-free lithium-sulfur batteries

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Nano Research 2024年第3期17卷 1337-1365页

作者： Yanqi Feng Hui Liu Qiongqiong Lu School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi’an 710021China Institute of Materials Henan Key Laboratory of Advanced Conductor MaterialsHenan Academy of SciencesZhengzhou 450046China Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. Helmholtzstraβe 2001069 DresdenGermany School of Materials&Environment Engineering Chengdu Technological UniversityChengdu 611730China

Lithium-sulfur(Li-S)batteries with advantages of high energy densities(2600 Wh·kg^(-1)/2800 Wh·L^(-1))and sulfur abundance are regarded as promising candidates for next-generation high-energy batteries.However,the conventional carbon host used in sulfur cathodes suffers from poor chemical adsorption towards Li-polysulfides(LPS)in liquid electrolyte and sluggish redox kinetics,leading to low capacity and rate capability.Besides,carbon host used in Li metal anode with the intrinsic property of poor lithiophilicity and high Li-nucleation barrier gives rise to uncontrollable dendrite growth and further battery failure.Therefore,non-carbon hosts with chemical adsorption toward LPS and catalytic activity for accelerating LPS redox conversion as well as lithiophilic property for guiding uniform Li deposition are proposed and demonstrated a high efficiency in both sulfur cathodes and Li metal anodes.In this review,the principle and challenges of Li-S batteries are first presented,then recent work using non-carbon hosts in Li-S batteries is summarized comprehensively,and the mechanism of non-carbon host in improving sulfur utilization and stabilizing Li metal anode is discussed in detail.Furthermore,remaining challenges and outlook on the implementation of non-carbon host for practical carbon-free Li-S batteries are also provided.

关键词： sulfur cathode Li metal anode polysulfides adsorption catalytic effect Li dendrite carbon-free lithium-sulfur batteries

catalytic effect Analysis of Metallic Catalyst During Diamond Single Crystal Synthesis

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Acta Metallurgica Sinica(English Letters) 2014年第1期27卷 161-167页

作者： Li Li Shibo Xing School of Mechanical and Electrical Engineering Hebei University of Engineering

By transition metals （Fe, Ni, Mn, Co） and their alloys as catalysts during the diamond synthesis, some transition phases will be formed, such as FeaC type carbides and y solid solutions. Based on the empirical electron theory of the solid and molecules, the valence electron structures of different kinds of carbides and y solid solutions and the relative electron density differences of various diamond/carbide and y solid solution/carbide interfaces were calculated and analyzed in this paper. The electron structure conditions of the ideal catalyst were presented by analyzing the different catalytic effects of the catalysts, which provide a new theoretical path to the optimal design of the catalyst composition

关键词： Diamond catalytic effect Carbide Electronic structure

catalytic effect of Activated Carbon and Activated Carbon Fiber in Non-Equilibrium Plasma-Based Water Treatment

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Plasma Science and Technology 2008年第3期10卷 358-362页

作者：张延宗郑经堂曲险峰于维钊陈宏刚 State Key Laboratory of Heavy Oil Processing China University of PetroleumDongying 257061 China

Catalysis and regeneration efficiency of granular activated carbon （GAC） and activated carbon fiber （ACF） were investigated in a non-equilibrium plasma water treatment reactor with a combination of pulsed streamer discharge and GAC or ACF. The experimental results show that the degradation efficiency of methyl orange （MO） by the combined treatment can increase 22% （for GAC） and 24% （for ACF） respectively compared to pulsed discharge treatment alone, indicating that the combined treatment has a synergetic effect. The MO degradation efficiency by the combined treatment with pulsed discharge and saturated GAC or ACF can increase 12% and 17% respectively compared to pulsed discharge treatment alone. Both GAC and ACF show catalysis and the catalysis of ACF is prominent. Meanwhile, the regeneration of GAC and ACF are realized in this process. When H202 is introduced into the system, the utilization efficiency of ozone and ultraviolet light is improved and the regeneration efficiency of GAC and ACF is also increased.

关键词： non-equilibrium plasma water treatment activated carbon activated carbon fiber catalytic effect

Kinetics of Carbothermic Reduction of MnO_2 and catalytic effect of La_2O_3

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Journal of University of Science and Technology Beijing 2002年第1期9卷 40-44页

作者： HuiqingTang XingminGuo 等 InstituteofProcessEngineering ChineseAcademyofSciencesBeijing100080 MetallurgySchool UniversityofSciencesandTechnologyBeijingBeijing100083China

Kinetics of carbothermic reduction of manganese oxide and the catalyticeffect of La_2O_3 on the reduction have been studied by the measurement of mass loss in N_2atmosphere at different temperatures and followed by SEM analysis. It is concluded that the kineticsof carbothermic reduction of manganese oxide is divided into three stages: gas diffusioncontrolling stage, carbon gasification con-trolling stage and solid state diffusion controllingstage. La_2O_3 has catalytic effect on the reduction. The catalytic effect of La_2O_3 increases withthe added amount of La_2O_3. SEM analysis shows that the catalytic mechanism is that La_2O_3promotes the transfer of oxygen ions so that carbon gasifying is catalyzed and thus carbothermicreduction of MnO_2 is catalyzed.

关键词： lanthanum oxide carbothermic reduction catalytic effect

catalytic effect of SCN^- on Electrodeposition of Zinc-Nickle Alloy

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Journal of Shanghai University(English Edition) 2001年第2期5卷 160-163页

作者： FANGZheng－hua YINRen－he 等 DepartmentofChemistry CollegeofScienceShanghaiUniversityShanghai200436China

The electrodeposition of zinc nickle alloy was obtained on a copper cathode of 1×1cm 2. The deposited alloys are quantitatively analyzed by atomic absorption spectrometry. The morphology of the deposits was observed by means of scanning electron microscopy(SEM).We observed that the electrodeposition of zinc nickle alloy is an anomalous codeposition. The catalytic effects of SCN - on the electrochemical behavior of Ni deposition and hydrogen discharge are obvious. SEM analysis shows that the surface morphology of the coating appears to be more compact and homogeneous with the increase of SCN - concentration.

关键词： zinc nickle alloy anomalous codeposition catalytic effect

Synergic catalytic effect of Ti hydride and Nb nanoparticles for improving hydrogenation and dehydrogenation kinetics of Mg-based nanocomposite

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Progress in Natural Science:Materials International 2017年第1期27卷 99-104页

作者： Xiujuan Ma Xiubo Xie Peng Liu Li Xu Tong Liu Key Laboratory of Aerospace Materials and Performance (Ministry of Education) School of Materials Science and Engineering Beihang University State Grid Smart Grid Research Institute Future Science and Technology City Changping

The Mg-9.3 wt%(TiH;-TiH)-0.7 wt% Nb nanocomposite has been synthesized by hydrogen plasma-metal reaction（HPMR） approach to enhance the hydrogen sorption kinetics of Mg at moderate temperatures by providing nanosizing effect of increasing H "diffusion channels" and adding transition metallic catalysts. The Mg nanoparticles（NPs） were in hexagonal shape range from 50 to 350 nm and the average size of the NPs was 177 nm. The small spherical TiH;, TiH and Nb NPs of about 25 nm uniformly decorated on the surface of the big Mg NPs. The Mg-TiH;-TiH-Nb nanocomposite could quickly absorb 5.6 wt% H;within 5 min at 573 K and 4.5 wt% H;within 5 min at 523 K, whereas the pure Mg prepared by HPMR could only absorb 4 and 1.5 wt% H;at the same temperatures. TiH;, TiH and Nb NPs transformed into TiH;and Nb H during hydrogenation and recovered after dehydrogenation process. The apparent activation energies of the nanocomposite for hydrogenation and dehydrogenation were 45.0 and 50.7 kJ mol;, which are much smaller than those of pure Mg NPs, 123.8 and 127.7 kJ mol;. The improved sorption kinetics of the Mg-based nanocomposite at moderate temperatures and the small activation energy can be interpreted by the nanostructure of Mg and the synergic catalytic effects of Ti hydrides and Nb NPs.

关键词： Magnesium Nanocomposite catalytic effect Hydrogen storage

catalytic mechanism of in-situ Ni/C co-incorporation for hydrogen absorption of Mg

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Journal of Magnesium and Alloys 2023年第5期11卷 1815-1824页

作者： Bogu Liu Bao Zhang Haixiang Huang Xiaohong Chen Yujie Lv Zhongyu Li Jianguang Yuan Ying Wu Central Iron&Steel Research Institute Advanced Technology&Materials Co.LtdNo.76 XueyuannanluHaidian DistrictBeijing 100081China Advanced Materials Research Institute North China Electric Power UniversityNo.2 Beinonglu Changping DistrictBeijing 102206China

Ni and carbon materials exhibit remarkable catalysis for the hydriding reaction of Mg.But the underlying mechanism of Ni/C hybrid catalysis is still unclear.In this work,density functional theory(DFT)calculation is applied to investigate the effect of Ni/C co-incorporation on the hydriding reaction of Mg crystal.The morphology and crystal structure of the Ni/C co-incorporated Mg sample show that the coincorporated structure is credible.The transition state searching calculation suggests that both the incorporations of Ni and C are beneficial for the H_(2) dissociation.But Ni atom has a dramatic improvement for H_(2) dissociation and makes the H diffusion become limiting step of the hyriding reaction.The Ni dz_(2)orbit and H s orbit accept the electrons and combine together compactly,while the Ni d_(xy) orbit is half-occupied.The catalytic effect of Ni on H_(2) dissociation can be ascribed to the bridging effect of Ni d_(xy) orbit.The incorporation of C can weaken the over-strong interaction between Ni and H which hindered the H diffusion on Mg(0001).The Ni/C co-incorporated Mg(0001)shows the best performance during hyriding reaction compared with the clean and single incorporated Mg(0001).

关键词： Magnesium Ni/C co-incorporation Density functional theory catalytic effect Hydriding reaction

Removal of iodide anions in water by silver nanoparticles supported on polystyrene anion exchanger

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Journal of Environmental Sciences 2023年第6期128卷 45-54页

作者： Li Li Su-Juan Yu Rong-Gang Zheng Peng Li Qing-Cun Li Jing-Fu Liu State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Hubei Key Laboratory of Environmental and Health effects of Persistent Toxic Substances Institute of Environment and HealthJianghan UniversityWuhan 430056China University of Chinese Academy of Sciences Beijing 100049China Department of Ecology and Resources Engineering He Tao CollegeInner Mongolia 015000China

The removal of iodide(I^(−))from source waters is an effective strategy to minimize the formation of iodinated disinfection by-products(DBPs),which are more toxic than their brominated and chlorinated analogues.In this work,a nanocomposite Ag-D201 was synthesized by multiple in situ reduction of Ag-complex in D201 polymer matrix,to achieve highly efficient removal of iodide from water.Scanning electron microscope/energy dispersive spectrometer characterization showed that uniform cubic silver nanoparticles(AgNPs)evenly dispersed in the D201 pores.The equilibrium isotherms data for iodide adsorption onto Ag-D201 was well fitted with Langmuir isotherm with the adsorption capacity of 533 mg/g at neutral pH.The adsorption capacity of Ag-D201 increased with the decrease of pH in acidic aqueous solution,and reached themaximum value of 802 mg/g at pH 2.This was attributed to the oxidization of I^(−),by dissolved oxygen under the catalysis of AgNPs,to I2 which was finally adsorbed as AgI3.However,the aqueous solutions at pH 7–11 could hardly affect the iodide adsorption.The adsorption of I^(−)was barely affected by real water matrixes such as competitive anions(SO_(4)^(2−),NO_(3)^(−),HCO3−,Cl^(−))and natural organic matter,of which interference of NOM was offset by the presence of Ca^(2+).The proposed synergistic mechanism for the excellent performance of iodide adsorption by the absorbent was ascribed to the Donnan membrane effect caused by the D201 resin,the chemisorption of I^(−)by AgNPs,and the catalytic effect of AgNPs.

关键词： Ag-D201 Iodide removal Donnan membrane effect Chemisorption catalytic effect High selectivity