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Improvement in hydrogen storage performance of MgH_(2) by vanadium doped with ziF-8 derived a single-atom catalyst V-N-C

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Rare Metals 2024年第6期43卷 2623-2635页

作者： Fei-Fan Hong Wei-Tao Shi Ruo-Lin Zhao Yi Fan zi-qi liu Si-Zhi Ding Hai-Zhen liu Wen-Zheng Zhou Jin Guo Zhi-qiang Lan Guangxi Novel Battery Materials Research Center of Engineering Technology and Center on Nanoenergy Research Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems IntegrationCarbon Peak and Neutrality Science and Technology Development InstituteSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004China Nanning Engineering Technology Research Center for Power Transmission System of New Energy Vehicle Transportation CollegeNanning UniversityNanning 530200China

Herein,the successful preparation of a singleatom catalyst V-N-C using vanadium-doped zeolitic imidazolate framework(ziF)-8 as a precursor is *** experimental results showed that the V-N-C had a good promoting effect on the hydrogen storage performance of MgH_(2),and the optimal addition amount of V-N-C was 10wt%.The hydrogenation and dehydrogenation apparent activation energies of 10 wt%V-N-C-catalyzed MgH_(2)were reduced by 44.9 and 53.5 kJ·mol^(-1),respectively,compared to those of additive-free MgH_(2).The 10 wt%V-N-C-catalyzed MgH_(2)could reabsorb 5.92 wt%of hydrogen in 50 min at 150℃,with a capacity retention rate of 99.1%after 30 cycles of hydrogen absorption and *** analysis showed that V-N-C was partially transformed into VN and metallic V when it was milled with MgH_(2);the in-situ-formed VN and metallic V played an important role in improving the hydrogen storage performance of MgH_(2).This approach provides a potential solution for obtaining high-performance Mg-based hydrogen storage materials through synergistic interactions between V,N and C.

关键词： MgH_(2) Hydrogen storage materials Catalyst Hydrogen storage perormance

Integrating network pharmacology and molecular docking to explore the potential mechanism of Zanthoxylum bungeanum against gout

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TMR Integrative Medicine 2023年第11期7卷 1-10页

作者： zi-qi liu zi-Bo liu Xue Sun Li-Lin Zhang Chun-Jie Wu School of Pharmacy Chengdu University of Traditional Chinese MedicineChengdu 611137China Innovative Institute of Chinese Medicine and Pharmacy Chengdu University of Traditional Chinese MedicineChengdu 611137China

Background:Gout is an inflammatory joint *** pharmacological studies have shown that Zanthoxylum bungeanum(***)has significant anti-inflammatory and osteoprotective *** study is aimed to explore the therapeutic effect of *** on gouty ***:Firstly,the compounds in the water extract of ***(WZB)were analyzed by UPLC-QE-Orbitrap-MS/*** compounds and disease targets were predicted using SwissTargetPrediction platform and GeneCards database,and the candidate targets were acquired by taking the ***,the protein interaction network was constructed and the hub genes were screened using String platform and Cytoscape *** Ontology enrichment and Kyoto Encyclopedia of Genes and Genomes analysis of hub genes were performed using Metascape ***,the disease-pathway-target-drug-component network diagram was constructed to obtain the active components and targets for treating disease,and the affinity between components and targets were predicted by applying Discovery Studio *** vitro,using an acute gout model of RAW 264.7 macrophages induced by Monosodium Urate to evaluate the anti-inflammatory effect of WZB on ***,we established a mice model of hyperuricemia and measured the serum xanthine oxidase(XOD)activity and uric acid(UA)***:A total of 20 chemical components were identified from WZB,mainly alkaloid *** network pharmacology results showed that Dihydrobungeanool,Quercetin,Hydroxy-α-sanshool and Hydroxy-ɛ-sanshool were the main active components of WZB against ***1,PIK3CA,EGFR and TLR1 proteins were the main targets of WZB in the treatment of *** in cancer,PI3K/Akt signaling pathway,Th17 cell differentiation and MAPK signaling pathway were closely related to *** docking results have shown that Dihydrobungeanool may be the main active ingredient of WZB for gout treatment,and PIK3CA is the main potential ***

关键词： gout network pharmacology molecular docking PI3K-Akt inflammation arthritis

Ultrahigh luminescence quantum yield lanthanide coordination polymer as a multifunctional sensor

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Ultrahigh luminescence quantum yield lanthanide coordination...

Nucleocapsid protein from porcine epidemic diarrhea virus isolates can antagonize interferon-λ production by blocking the nuclear factor-κB nuclear translocation

中国化学会2019年中西部地区无机化学化工学术研讨会

作者： Kai Zheng zi-qi liu Ye-Fei Jiang Hao-Ran Li Cheng-Hui Zeng College of Chemistry and Chemical Engineering Research Center for Ultra Fine Powder Materials Key Laboratory of Functional Small Organic Molecule Ministry of Education and Jiangxi’s Key Laboratory of Green Chemistry Jiangxi Normal University

Investigation and development of advanced multifunctional and sensitive sensors with high luminescen quantum yield and capabilities of detecting different analytes such as metal ions are imperative. we present two series of alkali ions decorated lanthanide coordination polymers(Ln-CPs), which show ultrahigh luminescence quantum yields(QYs) of 77%(1a) and 92%(2a). To the best of our knowledge, 1a represents the first trifunctiona lanthanide complex sensor that can simultaneous detect and discriminate three different analytes, namely H/Cd/Cr through multimode optical response. Quantum yield of 92% is the senond highest value fo lanthanide complex.

关键词： Alkali ions decorated Luminescence quantum yields(QYs) Trifunctional lanthanide complex sensor

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2018年第7期19卷 570-580页

作者： Ying SHAN zi-qi liu Guo-wei LI Cong CHEN Hao LUO Ya-jie liu Xun-hui ZHUO Xing-fen SHI Wei-huan FANG Xiao-liang LI Zhejiang Province Key Lab of Preventive Veterinary Medicine Institute of Preventive Veterainary Medicine College of Animal Sciences Zhejiang University Hangzhou 310058 China Institute of Parasitic Disease Zhejiang Academy of Medical Sciences Hangzhou 310013 China Animal Products Quality Testing Center of Zhejiang Province Hangzhou 310020 China

Porcine epidemic diarrhea virus（PEDV） is a highly infectious pathogen that can cause severe diseases in pigs and result in enormous economic losses in the worldwide swine industry. Previous studies revealed that PEDV exhibits an obvious capacity for modulating interferon（IFN） signaling or expression. The newly discovered type III IFN, which plays a crucial role in antiviral immunity, has strong antiviral activity against PEDV proliferation in IPEC-J2 cells. In this study, we aimed to investigate the effect of PEDV nucleocapsid（N） protein on type III IFN-λ. We found that the N proteins of ten PEDV strains isolated between 2013 and 2017 from different local farms shared high nucleotide identities, while the N protein of the CV777 vaccine strain formed a monophyletic branch in the phylogenetic tree. The N protein of the epidemic strain could antagonize type III IFN, but not type I or type II IFN expression induced by polyinosinic-polycytidylic acid（poly（I：C）） in IPEC-J2 cells. Subsequently, we demonstrated that the inhibition of poly（I：C）-induced IFN-λ3 production by PEDV N protein was dependent on the blocking of nuclear factor-κB（NF-κB） nuclear translocation. These findings might help increase understanding of the pathogenesis of PEDV and its mechanisms for evading the host immune response.

关键词： Porcine epidemic diarrhea virus Nucleocapsid protein Interferon-λ(IFN-λ) Nuclear factor-κB(NF-κB) Intestinal epithelial cells

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基于BP人工神经网络的气体传感器温度补偿

仪表技术与传感器 2017年第4期 10-12页

作者：刘子骐杨留方云南民族大学电气信息工程学院云南昆明650031 云南省高校无线传感器网络重点实验室云南昆明650031

针对气体传感器存在输出特性极易受到外界温度干扰的特性,提出了基于BP神经网络的温度补偿方法。通过Matlab神经网络工具箱中提供的程序,对神经网络中的各种函数参数进行编程来实现对气体传感器的补偿功能。实验仿真结果表明该方法有效... 详细信息

针对气体传感器存在输出特性极易受到外界温度干扰的特性,提出了基于BP神经网络的温度补偿方法。通过Matlab神经网络工具箱中提供的程序,对神经网络中的各种函数参数进行编程来实现对气体传感器的补偿功能。实验仿真结果表明该方法有效地减小了外界温度对气体传感器输出的影响,提高了传感器的准确性和稳定性。

关键词：气体传感器温度补偿神经网络 Matlab

Laser direct writing of flexible multifunctional airflow sensors on the Kevlar fabric

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Nano Research 2025年第1期18卷 443-454页

作者： Wei Wang zi-qing Chen Yong-qi Li Yu-Long Wang Mei-Chen liu Yun-Bo Ruan Yang Zhang Shu-Juan liu qiang Zhao College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Zhe Jiang Topsun Logistic Control CO. LTD.Yuhuan 317600China Department of Rehabilitation Medicine School of Acupuncture-Moxibustion and Tuina and School of Health Preservation and RehabilitationNanjing University of Chinese MedicineNanjing 210023China

The growing interest in flexible devices has emerged as a global trend due to their advantages in flexibility,lightweight structure,and wearability,addressing the limitations of traditional *** wearable airflow sensors have been previously reported,the development of flexible fabric-based airflow sensors capable of functioning in environments with open flames—critical for fire rescue operations—has yet to be explored,largely due to the poor fire resistance of conventional *** this work,we first present a flexible,wearable,and multifunctional airflow sensor with excellent fire-resistant properties,fabricated through a simple direct laser writing *** sensor maintains airflow detection capabilities even in the presence of open ***,the fabrication of fabric-based sensors involves complex procedures such as carbon materials doping or vapor-phase deposition,leading to lengthy preparation cycles and high ***,fabric-based devices are inherently prone to *** address these challenges,we introduce twice-vertical laser-induced graphene(TVLIG)as a sensitive and reliable component for fire-resistant airflow *** resulting TVLIG/Kevlar fabric can be integrated into various garments,particularly protective suits,to form sensitive and fire-resistant airflow sensors capable of detecting airflow velocity and direction in both two-dimensional(2D)and three-dimensional(3D)spaces during fire ***,the TVLIG patterns can be expanded to multifunctional platforms,such as glucose detection for injured individuals,offering further applications in rescue *** functional expansion reduces the burden on rescue personnel and streamlines device *** its outstanding sensing capabilities,fire resistance,and expandability,the developed flexible airflow sensor shows great potential for various real-world rescue scenarios,promising advancements in wearable sensing technology for rescue enginee

关键词： flexible airflow sensor direct laser writing twice-vertical laser-induced graphene fire accident rescue Kevlar fabric

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming Zhang Hanyu Wu qi Chen Jiaxin Yang Bonan liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

Spin-glass behavior in the competing CoCrGaO_(4)cubic spinel system

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Nano Research 2025年第1期18卷 501-507页

作者： Jiyu Hu Jiangli Ni Zhenfa zi Chaocheng liu School of Physics and Materials Engineering Hefei Normal UniversityHefei 230009China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230026China

Spin glasses(SGs),generally defined as disordered systems with randomized competing interactions,are widely investigated complex *** the ground states of spin glasses is crucial for understanding the nature of disordered magnets and many other physical manifestations,while also helping to solve some hard combinatorial optimization problems across multiple ***,the intrinsic cause of SG has always been elusive,especially in spinel oxide ***,we report the SG behavior observed in the cubic spinel oxides CoCrGaO_(4),and provide a comprehensive understanding of its intrinsic *** results indicate a frustrated state under multi-magnetic competition,and the features of SG are confirmed by susceptibility *** fitting parameters ofτ0,T0,and zv of isothermal remanent magnetization further reveal the relaxation behavior and strong spin ***,the varying exchange coupling under different temperatures and magnetic fields is unveiled,which should be responsible for the disordered *** studies unravel the underlying mechanism responsible for doping-induced magnetic frustration and introduce CoCrGaO_(4)as a potential platform for investigating spin glass behavior,thereby advancing fundamental research on frustrated magnetism within the spinel system.

关键词： spin glass(SG) magnetic frustration magnetic competition spinel ferrites

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