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Recent advances and perspectives on vanadium-and manganese-based cathode materials for aqueous zinc ion batteries

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Journal of Energy Chemistry 2021年第8期30卷 134-159,I0004页

作者： Na Liu Bin Li Zhangxing He Lei Dai Haiyan wang Ling wang School of Chemical Engineering North China University of Science and TechnologyTangshan 063009China Hunan Provincial Key Laboratory of Chemical Power Sources Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese ResourcesCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China

The growing demand for energy storage has inspired researchers’exploration of advanced *** zinc ion batteries(ZIBs)are promising secondary chemical battery system that can be selected and *** ZIBs possess merits of high security,low cost,environmental friendliness,and competitive performance,and they are received a lot of ***,the development of suitable zinc ion intercalation-type cathode materials is still a big challenge,resulting in failing to meet the commercial needs of *** vanadium-based and manganese-based compounds are representative of the most advanced and most widely used rechargeable ZIBs *** valence state of vanadium is+2~+5,which can realize multi-electron transfer in the redox reaction and has a high specific *** of the manganese-based compounds have tunnel structure or three-dimensional space frame,with enough space to accommodate zinc *** order to understand the energy storage mechanism and electrochemical performance of these two materials,a specialized review focusing on state-of-the-art developments is *** review offers access for researchers to keep abreast of the research progress of cathode materials for *** latest advanced researches in vanadium-based and manganese-based cathode materials applied in aqueous ZIBs are *** article will provide useful guidance for future studies on cathode materials and aqueous ZIBs.

关键词： Zinc ion batteries Cathode Vanadium-based materials Manganese-based materials Recent advances

Application of graphene oxides and graphene oxide-based nanomaterials in radionuclide removal from aqueous solutions

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Science Bulletin 2016年第20期61卷 1583-1593页

作者： Xiangxue wang Shujun Yu Jie Jin Hongqing wang Njud S. Alharbi Ahmed Alsaedi Tasawar Hayat Xiangke wang School of Environment and Chemical Engineering North China Electric Power University Beijing 102206 China School of Chemistry and Chemical Engineering University of South China Hengyang 421001 China Biotechnology Research Group Department of Biological Sciences Faculty of Science King Abdulaziz UniversityJeddah 21589 Saudi Arabia NAAM Research Group Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia

With the fast development of nanoscience and nanotechnology,the nanomaterials have attracted multidisciplinary *** high specific surface area and large numbers of oxygen-containing functional groups of graphene oxides(GOs) make them suitable in the preconcentration and solidification of radionuclides from *** this paper,mainly based on the recent work carried out in our laboratory,the efficient elimination of radionuclides using GOs and GO-based nanomaterials as adsorbents are summarized and the interaction mechanisms are discussed from the results of batch techniques,surface complexation modeling,spectroscopic analysis and theoretical *** review is helpful for the understanding of the interactions of radionuclides with GOs and GO-based nanomaterials,which is also crucial for the application of GOs and GO-based nanomaterials in environmental radionuclide pollution management and also helpful in nuclear waste management.

关键词： Graphene oxides Radionuclides Sorption Interaction mechanism Theoretical calculation Spectroscopic analysis

Mesopore-encaged V-Mn oxides:Progressive insertion approach triggering reconstructed active sites to enhance catalytic oxidative desulfuration

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Chinese Journal of Chemical Engineering 2022年第5期35卷 182-193页

作者： Fu Yang Ruyi wang Shijian Zhou Xuyu wang Yan Kong Shuying Gao School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 210009China

The oxidative desulphurization(ODS)has become mainly popular by rapid catalytic oxidation of dibenzothiophene(DBT)relied on efficient heterogeneous catalyst,V-based catalytic active species were regarded as the potential option in the activity-preferred ODS ***,we reported the redispersion of vanadium oxide(VO_(χ))on the mesoporous silica modified with manganese oxide(Mn_(3)O_(4)) through one progressive insertion approach of metal oxides in the ***,mesoporeencaged vanadium-manganese oxides in the silica(VMn-MS)as the admirable output of excellent ODS catalyst was demonstrated compared to other monometal-modified counterparts and one-pot implanted *** characterization results revealed the post-implanted VO_(χ) species not only deposited around the pre-covered Mn_(3)O_(4) on the mesoporous surface but also inserted the surface layer of Mn_(3)O_(4) inducing the amorphous evolution of aggregated Mn_(3)O_(4) and the reconstruction of final active *** integrated approach made the reconstructed active species afford more exposed catalytic sites and the tailored surface redox cycles owing to the electronic communication of *** catalytic results demonstrated the excellent catalytic desulphurization efficiency(~100%)during 60 min at 80℃,which made the sulphur content reduce to 6 mg·L^(-1),remarkably superior to other comparative *** outstanding catalytic performance of VMn-MS catalyst can be ascribed to the synergistic effect of V-Mn dual metals rendering two different reaction pathways,which includes free-radical reaction and ring-forming reaction,where Mn site acted as active center triggering reactive free radicals which could be further optimized by surrounded V sites around Mn sites to promote the ODS process.

关键词： Nanomaterials Moleclar sieves Oxidative desulphurization Radicals Synergetic effect Surface

Microbe-derived non-necrotic glycoside hydrolase family 12 proteins act as immunogenic signatures triggering plant defenses

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Journal of Integrative Plant Biology 2022年第10期64卷 1966-1978页

作者： Lan wang Hanmei Liu Mingmei Zhang Yu Ye Lei wang Jinyi Zhu Zhaodan Chen Xiaobo Zheng Yan wang Yuanchao wang Department of Plant Pathology Nanjing Agricultural UniversityNanjing 210095China Key Laboratory of Soybean Disease and Pest Control(Ministry of Agriculture and Rural Affairs) Nanjing Agricultural University210095NanjingChina The Key Laboratory of Plant Immunity Nanjing Agricultural UniversityNanjing 210095China

Plant pattern recognition receptors(PRRs)are sentinels at the cell surface sensing microbial invasion and activating innate immune *** infection,certain microbial apoplastic effectors can be recognized by plant PRRs,culminating in immune responses accompanied by cell ***,the intricated relationships between the activation of immune responses and cell death are ***,we studied the glycoside hydrolase family12(GH12)protein,Ps109281,secreted by Phytophthora sojae into the plant apoplast during ***109281 exhibits xyloglucanase activity,and promotes *** infection in a manner dependent on the enzyme ***109281 is recognized by the membranelocalized receptor-like protein RXEG1 and triggers immune responses in various plant *** other characterized GH12 members,Ps109281 fails to trigger cell death in *** loss of cell death induction activity is closely linked to a sequence polymorphism at the *** sequence polymorphism does not affect the in planta interaction of Ps109281 with the recognition receptor RXEG1,indicating that cell death and immune response activation are determined using different regions of the GH12 *** GH12 protein also exists in other Phytophthora and fungal *** together,these results unravel the evolution of effector sequences underpinning different immune outputs.

关键词： apoplastic effector cell death glycoside hydrolases immune recognition immune responses

Controlled Radical Polymerization of Styrene Mediated by Xanthene-9-thione and Its Derivatives

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Chinese Journal of Polymer Science 2018年第12期36卷 1303-1311页

作者： Hao-Yu Yu Jiao wang Jian-Wei Shao Dong Chen Shi-Chao wang Li wang Wan-Tai Yang College of Materials Science and Engineering Beijing University of Chemical Technology State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing Advanced Innovation Centre for Soft Matter Science and Engineering Beijing University of Chemical Technology

In our present work, a novel controlled radical polymerization system is developed based on xanthene-9-thione （XT）. It was found that the radical polymerization of styrene （St） became controlled in the presence of a small amount of XT. At the early stage of the polymerization, the polymerization rate was relatively low and the as-formed polystyrene （PS） had low number-average molecular weight （Mn） and narrow polydispersity （D）. After XT was consumed, the polymerization rate increased dramatically and the Mn of PS increased gradually with polymerization proceeding. When the polymerization of St was carried out with a proper molar ratio of initiator to XT and at an appropriate temperature, shortened slow polymerization stage and good control over Mn could be achieved. To further improve the regulating ability of XT, a series of substituent groups （-CF3, --CH（CH3）2, --N（CH3）2） were introduced onto the xanthene ring of XT, and the effects of these derivatives on the polymerization of St were investigated in detail. UV-Vis spectroscopy was carried out to monitor the concentration of XT during the polymerization and the chemical structure of the as-formed PS was fully characterized by IH- NMR and ESI-MS analysis. A possible mechanism involving the formation and evolution of the cross-termination products was proposed to interpret the observed polymerization behavior.

关键词： Controlled radical polymerizaton Xanthene-9-thione Styrene Substituent ESI-MS

On the rumpling mechanism in nanocrystalline coatings:Improved by reactive magnetron sputtering with oxygen

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Journal of Materials Science & Technology 2023年第1期132卷 69-80页

作者： Bo Meng Jinlong wang Lanlan Yang Minghui Chen Shenglong Zhu Fuhui wang Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

Surface rumpling is detrimental to high temperature protective coatings as it shortens their lifetime and leads to adhesion losses and unexpected corrosion *** driving force and mass transport mechanism behind of rumpling remains to be *** the present investigation,we subjected two types of nanocrystalline coating systems to avoid the influence of interdiffusion on rumpling *** group was an ordinary nanocrystalline coating,and the other group was designed and prepared with trace oxygen by reactive magnetron *** cyclic oxidation test at 1100°C was also car-ried *** show the ordinary nanocrystalline coating oxidized rapidly,which leads to the fast consumption of Al and the acceleration of phase transition in the ***,severe surface rumpling is observed due to the stress release of nanocrystals through plastic ***,the reactive doping of oxygen can significantly reduce the consumption process of Al in nanocrystalline *** rumpling is controlled due to the improvement of coefficient of thermal expansion and Young’s modulus of the ***,the cyclic oxidation resistance is improved.

关键词： High temperature oxidation Thermal cycling oxidation Surface rumpling Nanocrystalline coating Residual stress

Factors affecting forensic electric network frequency matching-A comprehensive study

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Digital Communications and Networks 2024年第4期10卷 1121-1130页

作者： Guang Hua Qingyi wang Dengpan Ye Haijian Zhang Guoyin wang Shuyin Xia School of Electronic Information Wuhan UniversityWuhan430072China Institute for Infocomm Research(I2R) Agency for ScienceTechnology and Research(A*STAR)Singapore138632Singapore School of Cyber Science and Engineering Wuhan UniversityWuhan430072China School of Computer Science and Technology Chongqing University of Posts and TelecommunicationsChongqing400065China

The power system frequency fluctuations could be captured by digital recordings and extracted to compare with a reference database for forensic timestamp *** is known as the Electric Network Frequency(ENF)criterion,enabled by the properties of random fluctuations and intra-grid *** essence,this is a task of matching a short random sequence within a long reference,whose accuracy is mainly concerned with whether this match could be uniquely *** this paper,we comprehensively analyze the factors affecting the reliability of ENF matching,including the length of test recording,length of reference,temporal resolution,and Signal-to-Noise Ratio(SNR).For synthetic analysis,we incorporate the first-order AutoRegressive(AR)ENF model and propose an efficient Time-Frequency Domain noisy ENF synthesis ***,the reliability analysis schemes for both synthetic and real-world data are respectively *** a comprehensive study,we quantitatively reveal that while the SNR is an important external factor to determine whether timestamp verification is viable,the length of test recording is the most important inherent factor,followed by the length of ***,the temporal resolution has little impact on ***,a practical workflow of the ENF-based audio timestamp verification system is proposed,incorporating the discovered results.

关键词： Digital forensics Audio forensics Data authentication Timestamp verification Electric network frequency criterion

Differential metabolite analysis of the pharmacodynamic differences between different ratios of Dahuang(Radix Et Rhizoma Rhei Palmati)-Taoren(Semen Persicae) herb pair

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Journal of Traditional Chinese Medicine 2024年第3期44卷 515-523页

作者： wang Xiang HUANG Jianping wang Yupeng wang Qilong JING Yajiang ZHANG Gang PENG Liang GAO Jing wang Hongyan YAN Yonggang Department of Key Laboratory of"Qin Pharmaceutical"Research and Development Shaanxi University of Traditional Chinese MedicineXianyang 712046China Department of Yupeng Shaanxi Haitian Pharmaceutical Co. Ltd.Xianyang 712046China Department of Acupuncture and Tuina Shaanxi University of Traditional Chinese MedicineXianyang 712000China

OBJECTIVE: To explore the material basis of the difference of efficacy of Dahuang(Radix Et Rhizoma Rhei Palmati)-Taoren(Semen Persicae)(DT) drugs with different proportions. METHODS: Samples of different ratios of Dahuang(Radix et Rhizoma Rhei Palnati, DH) to Taoren(Semen Persicae, TR)(Group A 1∶1, B 2∶3, C 3∶2) were analyzed based on gas chromatography time-of-flight mass spectrometry untargeted metabolomics technique. RESULTS: A total of 240 primary metabolites were detected. Forty-one differential metabolites involved nine differential metabolic pathways, of which four were closely related to the efficacy of DT in the treatment of heat and blood stasis syndrome. These pathways included the biosynthesis of amino acid(phenylalanine tyrosine and tryptophan), flavonoids, unsaturated fatty acids, and the glycolysis/glycogenesis pathway. CONCLUSION: There are significant differences in the efficacy of different ratios of DT drugs, and their optimal ratio for the treatment of heat and blood stasis syndrome should be 1∶1.

关键词： metabolomics metabolic networks and pathways differential metabolites Dahuang(Radix Et Rhizoma Rhei Palmati) Taoren(Semen Persicae) kernel drug pairs

Selective removal of iron(Ⅲ) from highly salted chloride acidic solutions by solvent extraction using di(2-ethylhexyl) phosphate

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Frontiers of Chemical Science and Engineering 2021年第3期15卷 528-537页

作者： Guoping Hu Yue Wu Desheng Chen Yong wang Tao Qi Lina wang Institute of Process Engineering Chinese Academy of SciencesBeijing 100190China Department of Chemical Engineering The University of MelbourneVictoria 3010Australia

Metal ions including Fe^(3+),Ca^(2+),Mg^(2+),Ni^(2+),Co^(2+) and Cu^(2+) are commonly found in the leaching solution of laterite-nickel ores,and the pre-removal of Fe^(3+) is extremely important for the recovery of nickel and ***(2-ethylhexyl)phosphate acid(D2EHPA)showed high extraction rate and selectivity of Fe^(3+) over other metal *** acidity of the aqueous solution is crucial to the extraction of Fe^(3+),and the stoichiometry ratio between Fe^(3+) and the extractant is 0.86:*** enthalpy for the extraction of Fe^(3+) using D2EHPA was 19.50 kJ/*** extraction of Fe^(3+)was ≥99% under the optimized conditions after a three-stage solvent extraction *** iron stripping effects of different reagents showed an order of H_(2)C_(2)O_(4)>NH_(4)HCO_(3)>HCl>NaCl>NaHCO_(3)>Na_(2)SO_(3).The stripping of Fe was ≥99% under the optimized conditions using H_(2)C_(2)O_(4) as a stripping reagent.

关键词： solvent extraction iron di(2-ethylhexyl)phosphate acid separation