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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

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： xiaoqin Li Jian xiang Lu qiu xiaohan Chen Yinkun Zhao Yujue Wang Qu Yue Taotao Gao Wenlong Liu Dan xiao Zhaoyu Jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

ELECTROChEMICAL IMPEDANCE SPECTROSCOPY STUDY OF CORROSION INhIBITION OF MODIFIED LIGNOSULPhONATE FOR CARBON STEEL

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Acta Metallurgica Sinica(English Letters) 2005年第4期18卷 519-524页

作者： C.h. Yi x. Q. qiu D.J. Yang h.M. Lou College of Chemical and Energy Engineering South China University of TechnologyGuangzhou 510640 China

The corrosion inhibition for carbon steel in circulating cooling water by modified lignosulphonate has been investigated using electrochemical impedance spectroscopy technique. Results show that the inhibition efficiency of modified lignosulphonate GCL2 is a great improvement on that of lignosulphonate. The maximum inhibition efficiency of GCL2 reaches 99.21% at the concentration of 400mg·L^-1 at 303K. The corrosion inhibition of GCL2 is attributed to forming adsorption film on the metal surface for the electrochemical impedance spectroscopy in GCL2 solution shows more than one ***,results also indicate that it is more efficient in stirring solution than in still solution for GCL2 because the constant of adsorption in stirring solution is much larger than that in still solution. The adsorption of inhibitor GCL2 follows Langmuir＇s adsorption isotherm.

关键词： electrochemical impedance spectroscopy EIS corrosion inhibition modified lignosulphonate

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The η-Pairing Superconductivity in Spin-Density Wave Background

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Chinese Physics Letters 1993年第10期10卷 616-619页

作者： x.M.qiu Z.J.Wang Southwestern Institute of Physics P.O.Box 432Chengdu 610041

In this letter,we propose a modified attractive hubbard model at half filling that can exhibit sup er con ductivity through η-pairing *** in spin-density wave representation and derive a concise relationship between the energy disparity and the single-particle energy *** relationship,in the two limits of U,clearly shows that the system does not display sup er con ductivity for very low doping concen・*** *** s up ere on ductivity when the doping concentration exceeds a certain critical *** conclusion is in quaJitative agreement with the familiar experiments on higli-T_(c) supcrconductivity.

关键词： spectrum value doping

Application of kernel ridge regression in predicting neutron-capture reaction cross-sections

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Communications in Theoretical Physics 2022年第9期74卷 98-104页

作者： T x huang x h Wu P W Zhao State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China

This article provides the first application of the machine-learning approach in the study of the cross-sections for neutron-capture reactions with the kernel ridge regression(KRR)*** is found that the KRR approach can reduce the root-mean-square(rms)deviation of the relative errors between the experimental data of the Maxwellian-averaged(n,γ)cross-sections and the corresponding theoretical predictions from 69.8%to 35.4%.By including the data with different temperatures in the training set,the rms deviation can be further significantly reduced to 2.0%.Moreover,the extrapolation performance of the KRR approach along different temperatures is found to be effective and reliable.

关键词： kernel ridge regression machine learning neutron-capture reaction

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Model on L-to h-Mode Transition Driven with Lower-hybrid Wave

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Chinese Physics Letters 1994年第11期11卷 677-680页

作者： qiu xiaoming(x.M.qiu) BAI Lin(L.Bai) Southwestern Institute of Physics P.O.Box 432Chengdu 610041

In this letter,a model for active suppressing tokamak edge turbulence and hence inducing the L-mode to h-mode transition with lower-hybrid wave(LhW)is *** model includes the two contents:(a)The poloidal sheared flow of plasma is generated by the ponderomotive potential and induced magnetization acting on a tokamak plasma resulting from the oscillating electric field of the injected LhW.(b)During the time the LhW is injected into tokamak edge,the edge turbulence and the LhW-generated plasma poloidal flow compete with each other;if the shear of plasma poloidal flow is large enough to suppress the edge turbulence,the confinement will be remarkably improved and hence the system will enter the h operating *** model leads us to find that the threshold LhW power required for edge-turbulence suppression is proportional to A(ω)≡(ω/ωLh)^(2)|(ω/ωLh)^(2)-1|,which enables us to explain the experiment in the JT-60 tokamak with lower-hybrid current drive.

关键词： turbulence hence flow

Bifunctional bridging capping layer enables 24.5% efficiency of perovskite solar cells with polymer-based hole transport materials

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Science China Chemistry 2025年第1期 350-359页

作者： Can Zhu Yiyang Wang Lei Meng Beibei qiu Jing Li Shucheng Qin Ke hu xin Jiang Wenbin Lai Minchao Liu Zhe Liu Chenxing Lu Jinyuan Zhang Yongfang Li Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of Sciences Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials ScienceSoochow University

Developing a bridge capping layer between perovskite and hole transport layer materials（hTMs） in the n-i-p perovskite solar cells（pero-SCs） is an effective approach to modify the morphology of hTMs and passivate the perovskite ***, we select the quinoxaline-based bifunctional passivation agent, quinoxalin-6-yl-methylamine hydrochloride（Qx MACl）,as the bridging layer, and a D-A copolymer PBQ12 containing the same quinoxaline unit as an hTM for the n-i-p pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and hTM, Qx MACl induces the π-π stacking of the PBQ12 film and improves the film morphology of hTMs with better conductivity. Additionally, Qx MACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with PBQ12/Qx MACl treatment showed a higher power conversion efficiency（PCE） of 24.05% and outstanding stability, maintaining 95.4% and 92.1% of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85 °C, respectively. To further enhance the PCE of the PBQ12/Qx MACl-based devices, we developed a non-metal ion dopant for the PBQ12 hTM. Through trace doping of PBQ12 hTM by the non-metal ion dopant, the PCE of the PBQ12/Qx MACl-based devices reached 25.24%（the calibrated PCE of 24.55% by the National Institute of Metrology, China）.

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In-plane crushing behavior and energy absorption design of composite honeycombs

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Acta Mechanica Sinica 2018年第6期34卷 1108-1123页

作者： h.x.Wu Y.Liu x.C.Zhang School of Civil Engineering Northeast Forestry UniversityHarbin 150040China Institute of Mechanics Beijing Jiaotong UniversityBeijing 100044China Department of Mechanical Engineering North China Electric Power UniversityBaoding 071003China

Theoretical analysis and numerical simulation methods were used to study the in-plane crushing behavior of single-cell structures and regular and composite ***,hexagonal,and circular honeycombs were selected as honeycomb layers to establish composite honeycomb models in the form of composite structures and realize the complementary advantages of honeycombs with type Ⅰ and type Ⅱ *** effects of honeycomb layer arrangement,plastic collapse strength,relative density,and crushing velocity on the deformation mode,plateau stress,load uniformity,and energy absorption performance of the composite honeycombs were mainly considered.A semi-empirical formula for plateau stress and energy absorption rate per unit mass for the composite honeycombs was *** results showed that the arrangement mode of honeycomb layers is an important factor that affects their mechanical *** selecting the arrangement of honeycomb layers and the proportion of honeycomb layers with different structures in a composite honeycomb can effectively improve its load uniformity and control the magnitude of plateau stress and energy absorption capacity.

关键词： Composite honeycombs Dynamic crushing Load uniformity Energy absorption Finite element analysis

A MAThEMATICAL MODEL FOR ThE STABILITY OF ThEhYDRIDES OF Ca CONTAINING RNi_5 COMPOUNDS

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Acta Metallurgica Sinica(English Letters) 1998年第2期11卷 116-120页

作者： x.h.Wang Zhejiang Univ Hangzhou China

In this paper, a mathematical model for the stability of hydrides of Ca containing compounds was proposed on the basis of introducing the geometrical and electric factors. The data on (R, Ca)Ni5 compounds are in good agreement with the theoretical curve obtained from the model. For Ml1-x CaxNi5 compounds, the variation of dissociation pressure with cell volume is the joint effects of geometrical and electric factors, and the controlling factor changes gradually from geometrical factor to electric factor with increasing x.

关键词： hydride hydrogen storage alloy intermetallic compound rare earth

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