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Furfural residues derived nitrogen-sulfur co-doped sheet-like carbon: An excellent electrode for dual carbon lithium-ion capacitors

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Green Energy & Environment 2024年第9期9卷 1427-1439页

作者： Xiaoying guo Yan qiao Zonglin Yi Christian Marcus Pedersen Yingxiong Wang Xiaodong Tian Peide Han College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan030024China College of Chemistry Taiyuan University of TechnologyTaiyuan030024China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan030001China CAS Key Laboratory of Carbon Materials Institute of Coal ChemistryChinese Academy of SciencesTaiyuan030001China University of Chinese Academy of Sciences Beijing100049China Department of Chemistry University of CopenhagenUniversitetsparken 5DK-2100 CopenhagenDenmark

The state-of-the-art lithium-ion capacitors (LICs),consisting of high-capacity battery-type anode and high-rate capacitor-type cathode,can deliver high energy density and large power density when comparing with traditional supercapacitors and lithium-ion batteries,***,the ion kinetics mismatch between cathode and anode leads to unsatisfied cycling lifetime and anode *** efforts have been devoted to solving the abovementioned *** promising strategy is altering high conductive hard carbon anode with excellent structural stability to match with activated carbon cathode,assembling dual-carbon *** this contribution,one-pot in-situ expansion and heteroatom doping strategy was adopted to prepare sheet-like hard carbon,while activated carbon was obtained involving *** persulfate was used as expanding and doping agent *** furfural residues (FR) were served as carbon *** resulting hard carbon (FRNS-HC) and activated carbon (FRNS-AC)show excellent electrochemical performance as negative and positive electrodes in a lithium-ion battery (LIB).To be specific,374.2 m Ah g^(-1)and 123.1 m Ah g^(-1)can be achieved at 0.1 A g^(-1)and 5 A g^(-1)when FRNS-HC was tested as *** combined with a highly porous carbon cathode (S_(BET)=2961 m^(2)g^(-1)) synthesized from the same precursor,the LIC showed high specific energy of147.67 Wh kg^(-1)at approximately 199.93 W kg^(-1),and outstanding cycling life with negligible capacitance fading over 1000 *** study could lead the way for the development of heteroatom-doped porous carbon nanomaterials applied to Li-based energy storage applications.

关键词： Furfural residue Ammonium persulfate Sheet-like carbon Lithium-ion capacitors Hard carbon

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Development of a model to simulate soil heavy metals lateral migration quantity based on SWAT in Huanjiang watershed,China

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Journal of Environmental Sciences 2019年第3期31卷 115-129页

作者： Pengwei qiao Mei Lei Sucai Yang Jun Yang Xiaoyong Zhou Nan Dong Guanghui guo Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing Key Laboratory of Remediation of Industrial Pollution Sites Environmental Protection Research Institute of Light Industry Comprehensive Institute of Geotechnical Investigation and Surveying Ltd.

Lateral transportation of soil heavy metals in rainfall events could significantly increase the scope of pollution. Therefore, it is necessary to develop a model with high accuracy to simulate the migration quantity of heavy metals. A model for heavy metal migration simulation was developed based on the SWAT(Soil and Water Assessment Tool) model. This model took into consideration the influence of soil p H value, soil particle size, runoff volume, sediment amount,concentration of water-soluble heavy metals dissolved in runoff and insoluble absorbed to the soil particles. This model was reasonable in Huanjiang watershed, Guangxi Zhuang Autonomous Region, south China, covering an area of 273 km^2. The optimal drainage area threshold was determined by analyzing the effects of watershed subdivision on the simulation results to ensure the simulation accuracy. The main conclusions of this paper were:(1) watershed subdivision could affect simulation migration quantity of heavy metals;(2) the quantity of heavy metals transported by sediment accounted for 97%–99% of the total migration quantity in the study watershed. Therefore, sediment played the most important role in heavy metal migration;(3) the optimal drainage area threshold percentage to ensure high simulation accuracy was determined to be 2.01% of the total watershed;(4) with the optimal threshold percentage, this model could simulate the migration quantity of As, Pb and Cd accurately at the total watershed and subwatershed level. The results of this paper were useful for identifying the key regions with heavy metal migration.

关键词： Soil heavy metal migration Simulation model Watershed subdivision Optimal drainage area threshold percentage Simulation accuracy

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Effect of Adsorption of ZrO2 in Catalysts on the Efficiency of Hydrolysis of Cellulose to Sugar in Aqueous System under Microwave Radiation

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Chinese Journal of Chemistry 2020年第4期38卷 399-405页

作者： Ying qiao Lixin Feng Zhongqiu Li Zhenyu Zhang Jing Chen Haining Na Jin Zhu lai Chen Department of Polymer College of Material Science and EngineeringShanghai UniversityShanghai 200444Chino Key Laboratory of Bio-based Polymeric Materials of Zhejiang Province Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboZhejiang 315201China Chemical College Shijiazhuang UniversityShijiazhuangHebei 050035Chino Hebei Building Ceramics Engineering Research Center Shijiazhuang UniversityShijiazhuangHebei 050035Chino

Summary of main observation and conclusion Five types of ZrO2 are used to simply establish an effective aqueous catalytic system with sulfuric acid for the hydrolysis of cellulose to sugar,*** adjusting surface roughness and particle size of ZrO2 dfferent adsorption is ***,following the thought to inhibit the self-aggregation nature of cellulose,after the introduction of ZrO2 with adsorption in catalysts,the efficiency of the hydrolysis of cellulose to sugar is *** results show different ZrO2 can produce different effects during the hydrolysis of the cellulose with rela-tively low *** the optimal conditions,the conversion of cellulose and TRS yield reaches 95.5%and 93.6%,*** this re-search,it reveals the critical point to organize a feasible and useful way for the hydrolysis of cellulose to sugar with high efficiency in an aqueous *** important theoretical and technical support is also provided for the conversion and utiliation of cellulose in the future.

关键词： hydrolysis sugar adsorption

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Role of farnesoid X receptor in establishment of ontogeny of phase-I drug metabolizing enzyme genes in mouse liver

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Acta Pharmaceutica Sinica B 2016年第5期6卷 453-459页

作者： lai Peng Stephanie Piekos Grace L.guo Xiao-bo Zhong Department of Pharmaceutical Sciences School of PharmacyUniversity of Connecticut Key Laboratory of System Biomedicine Center for Comparative BiomedicineInstitute of Systems BiomedicineShanghai Jiao Tong University Department of Pharmacology and Toxicology School of PharmacyRutgers University

The expression of phase-I drug metabolizing enzymes in liver changes dramatically during postnatal liver *** X receptor(FXR) is critical for bile acid and lipid homeostasis in ***,the role of FXR in regulating ontogeny of phase-I drug metabolizing genes is not ***,we applied RNA-sequencing to quantify the developmental expression of phase-I genes in both Fxr-null and control(C57BL/6) mouse livers during *** samples of male C57BL/6 and Fxr-null mice at6 different ages from prenatal to adult were *** Fxr-null showed an overall effect to diminish the "day-1 surge" of phase-I gene expression,including cytochrome P450 s at neonatal *** the 185 phase-I genes from 12 different families,136 were expressed,and differential expression during development occurred in genes from all 12 phase-I families,including hydrolysis: carboxylesterase(Ces),paraoxonase(Pon),and epoxide hydrolase(Ephx); reduction: aldoketo reductase(Akr),quinone oxidoreductase(Nqo),and dihydropyrimidine dehydrogenase(Dpyd); and oxidation: alcohol dehydrogenase(Adh),aldehyde dehydrogenase(Aldh),flavin monooxygenases(Fmo),molybdenum hydroxylase(Aox and Xdh),cytochrome P450(P450),and cytochrome P450 oxidoreductase(Por).The data also suggested new phase-I genes potentially targeted by *** results revealed an important role of FXR in regulation of ontogeny of phase-I genes.

关键词： Drug metabolizing enzymes Farnesoid X receptor Liver Ontogeny Fxr-null mouse Gene expression

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Mg-doped ZnO radial spherical structures via chemical vapor deposition

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Rare Metals 2011年第3期30卷 292-297页

作者： PENG Jiangqiang guo Jian DING Shulong XU qiao LI Hang TAN Xuwei ZHAO Xian Faculty of Materials Optoelectronics and Physics Xiangtan University Xiangtan 411105 China

Mg-doped ZnO radial spherical structures with nanorods grown on both sides of the spherical shell were successfully prepared via chemical vapor deposition （CVD） of Zn and Mg powders in the absence of a catalyst. The structures associated with different growth temperatures （700, 800, and 850°C） were monitored by scanning electron microscopy （SEM）, and the result shows that the length of the nanorods increase progressively with the growth temperature increasing. X-ray diffraction （XRD） shows that the as-obtained samples can be indexed to high crystallinity with wurtzite structure. The growth of the nanostructures mainly depends on the formation of sphere-like Mg-doped Zn droplets before adding oxygen. Photoluminescence （PL） spectra that show a 39 meV blue shift indicates that the band gap becomes large, because Mg substitutes Zn in the lattice.

关键词： zinc oxide magnesium doping nanorods chemical vapor deposition photoluminescence spectroscopy

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Coordinated control for medium voltage DC distribution centers with flexibly interlinked multiple microgrids

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Journal of Modern Power Systems and Clean Energy 2019年第3期7卷 599-611页

作者： Lei qiao Xialin LI Di HUANG Li guo Yutao XU Zhukui TAN Chengshan WANG The Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin300072China Electric Power Research Institute Guizhou Power Grid Co.Ltd.Guiyang550002China

From flexible interconnection among feeders to hybrid alternating current(AC) and direct current(DC)distribution structures of future smart distribution systems medium-voltage DC distribution centers with flexibly interlinked multiple microgrids(MGs) will have wide applications on the demand side. A generic coordinated control framework based on a distributed cooperation scheme is proposed for such DC centers, as opposed to centralized control structures. A novel unified control only using local measurements is proposed for these interlinking converters. During normal power disturbances, automatic coordinated power control and mutual support among sub-systems can be realized, thereby improving DC voltage and AC frequency stability to enable multiple MGs to be treated as a real unified cluster. Moreover, with this method, interlinking converters can realize seamless transition in power dispatching mode, common DC bus voltage control mode, and MG support mode without communication and control system switching. A simplified dynamic model has been developed to verify the proposed control strategy. This work is expected to provide a new solution for flexible interconnection and operational control of large-scale MG clusters.

关键词： Medium-voltage direct current(DC) distribution centers Multiple microgrids(MGs) Flexible interconnection Coordinated control Seamless transition

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Hybrid PdAg alloy-Au nanorods： Controlled growth, optical properties and electrochemical catalysis

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Nano Research 2013年第8期6卷 571-580页

作者： qiao Zhang Xia guo Zhenxing Liang Jianhuang Zeng Jian Yang Shijun Liao School of Chemistry and Chemical Engineering South China University of Technology Guangzhou S 10640 China Key Laboratory of Fuel Cell Technology of Guangdong Province Guangzhou 510640 China Department of Chemistry Shandong University Jinan 250100 China

Controllable growth of high-quality hybrid nanostructures is highly desirable for the fabrication of hierarchical, complex and multifunctional devices. Here, PdAg alloys have been controllably grown at different locations on gold nanorods, producing dumbbell-like nanostructures with PdAg at the ends of the gold nanorods or branched nanostructures with PdAg grown almost perpendicular to the gold nanorods. The nucleation sites of PdAg alloys on the gold nanorods can be effectively tuned by varying the concentrations of H2PdC14, AgNO3 and cetyltrimethylammonium bromide （CTAB）. The dumbbell-like and branched nanostructures were characterized by transmission electron microscopy （TEM）, high-resolution TEM （HRTEM）, line-scanning energy-dispersive X-ray spectros-copy （EDS）, X-ray photoelectron spectroscopy （XPS） and UV-Vis absorption spectroscopy. Their electrocatalytic performance was evaluated using ethanol oxidation as a probe reaction. The dumbbelMike nanostructures show a better anti-poisoning performance, but a worse electrochemical activity than the branched ones. The results provide guidelines for the controlled growth of complicated nanostructures for either fundamental studies or potential applications.

关键词： nanostructures hybrid materials metals controlled growth electrochemical catalysis optical properties

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Delivering substance use prevention interventions for adolescents in educational settings:A scoping review

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World Journal of Psychiatry 2023年第7期13卷 409-422页

作者： Xin-qiao Liu Yu-Xin guo Xin Wang School of Education Tianjin UniversityTianjin 300350China

Currently,a proportion of adolescents use alcohol,tobacco,and illicit drugs,which inevitably harms their health and academic *** is a peak period for substance use initiation and a critical time for preventing substance use *** entities,such as families,schools,and communities,have implemented a variety of interventions to alleviate adolescent substance use problems,and schools play a unique *** explore the types,characteristics,and effectiveness of substance use interventions in educational settings for adolescents,we conducted a scoping review and identified 32 studies after *** divided the 32 studies according to intervention type,including curriculum interventions focusing on cognitive-behavioral skill enhancement,exercise interventions,peer interventions and family-school cooperation,and electronic *** for the mixed results on electronic interventions,the results showed that the other interventions were beneficial to different extents in alleviating adolescent substance use *** addition,we analyzed and summarized the advantages and challenges of intervening in adolescent substance use in educational *** can use equipment and human resources to provide adolescents with various types of intervention measures,but they also face challenges such as stigmatization,ineffective coordination among multiple resources,and poor implementation *** the future,school-based intervention measures can fully utilize big data and artificial intelligence technology and collaborate with families and communities to intervene appropriately while paying attention to the comorbidity risks of substance use disorders and psychological health issues.

关键词： Substance use Prevention Adolescents Educational settings Artificial intelligence Digital interventions

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Numerical Simulation and Sensitivity Analysis of Parameters for Multistand Roll Forming of Channel Section With Outer Edge

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Journal of Iron and Steel Research International 2009年第1期16卷 32-37页

作者： ZENG guo lai Xin-min YU Zhong-qi LIN Zhong-qin School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Mechanical System and Vibration Shanghai 200240 China

Cold roll forming is a high production but complex metal forming process under the conditions of coupled effects with multi-factor. A new booting finite element method （FEM） model using the updated Lagrangian （IAL） method for multistand roll forming process is developed and validated. Compared with most of the literatures related to roll forming simulation, the new model can take the roll rotation into account and is well suited for simulating multistand roll forming. Based on the model, the process of a channel section with outer edge formed with twelve passes is simulated and the sensitivity analysis of parameters is conducted with orthogonal design combined FEM model. It is found that the multistand roll forming process can be efficiently analyzed by the new booting model, and sensitivity analysis shows that the yield strength plays an important role in controlling the quality of the products.

关键词： cold roll forming multistand roll forming sensitivity FEM model

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Synthesis of reversible PAD4 inhibitors via copper-catalyzed C-H arylation of benzimidazole

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Science China Chemistry 2019年第5期62卷 592-596页

作者： Zhengwei guo lai Shi Bo Wang Gang He Yanming Wang Gong Chen State Key Laboratory and Institute of Elemento-Organic Chemistry College of ChemistryNankai University School of Life Sciences Henan University Department of Biochemistry and Molecular Biology The Pennsylvania State University

PAD4 is a promising epigenetic drug target for various cancers and immune diseases. In this work, we applied a Cu-catalyzed C–H arylation reaction of N-heteroarene to the synthesis of complex non-covalent PAD4 inhibitors bearing a bi-heteroaryl pharmacophore. This strategy allowed us to access various analogs of C_2-aryl substituted benzimidazoles from a common benzimidazole core and easily accessible aryl iodides. Preliminary SAR studies revealed the indole motif of GSK-484 is critical to its activity. Replacing the N-cyclopropylmethyl group to N-benzyl group on the indole ring of GSK-484 resulted in more than5-fold increase in cell killing efficacy against 4T1 cell line.

关键词： C–H arylation benzimidazoles PAD4 inhibitor copper catalysis

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