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High-pseudocapacitance of porous and square NiO@NC nanosheets for high-performance lithium-ion batteries

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Rare Metals 2021年第6期40卷 1451-1458页

作者： Ze-Lin Cai Zi-Lin Peng meng-qi wang Jia-Yan Wu Hao-Sen Fan Yu-Fei Zhang School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China

Layered nickel oxides have been focused with intense research interests as high-performance lithium-ion batterie(LIB)***,it is hard to obtain few layered nickel oxides material directly as it easily forms bulk material with the strong interaction between the *** this work,two-dimensional(2 D)nickel-based coordination polymers were successfully prepared according to aqueous phase copolymerization *** then uniform carbondoped NiO nanosheets were successfully obtained from facile solution assembly and post-thermal *** detailed electrochemical testing shows that the uniform NiO nanocrystals encapsulated into porous N-doped carbon(NiO@NC)nanosheets present much higher rate capability with the discharge specific capacity of 782.7 mAh·g^(-1) at high current density of 2.0 A·g^(-1) than pure NiO(690 mAh·g^(-1)).It also shows long-term cycling performance with 91%retention after 50 cycles at 1.0 A·g^(-1).The high rate capability,cycling stability and the easy synthesis make NiO@NC nanosheets as a promising candidate for LIB anode and build up new way for the fabrication of metal oxides anode materials.

关键词： Anode Batteries Square NiO@NC nanosheets Pseudocapacitive

Galactosylation of rhamnogalacturonan-Ⅱ for cell wall pectin biosynthesis is critical for root apoplastic iron reallocation in Arabidopsis

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Molecular Plant 2021年第10期14卷 1640-1651页

作者： Jia-Shi Peng Bao-Cai Zhang Hao Chen meng-qi wang Ya-Ting wang Hong-Mei Li Shao-Xue Cao Hong-Ying Yi Hang wang Yi-Hua Zhou Ji-Ming Gong National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization School of Life ScienceHunan University of Science and TechnologyXiangtan 411201China University of Chinese Academy of Sciences Beijing 100049China School of Life Science and Technology Shanghai Tech UniversityShanghai 201210China

Apoplastic iron(Fe)in roots represents an essential Fe storage *** of apoplastic Fe is of great importance to plants experiencing Fe deprivation,but how this reallocation process is regulated remains elusive,likely because of the highly complex cell wall structure and the limited knowledge about cell wall biosynthesis and ***,we present genetic and biochemical evidence to demonstrate that the Cdi-mediated galactosylation of rhamnogalacturonan-II(RG-II)is required for apoplastic Fe *** is expressed in roots and up-regulated in response to Fe *** encodes a putative glycosyltransferase localized to the Golgi *** and mass spectrometry assays showed that Cdi catalyzes the transfer of GDP-L-galactose to the terminus of side chain A on *** of Cdi essentially decreased RG-II dimerization and hence disrupted cell wall formation,as well as the reallocation of apoplastic Fe from roots to *** transcriptomic,Fourier transform infrared spectroscopy,and Fe desorption kinetic analyses coincidently suggested that Cdi mediates apoplastic Fe reallocation through extensive modulation of cell wall components and consequently the Fe adsorption capacity of the cell *** study provides direct evidence demonstrating a link between cell wall biosynthesis and apoplastic Fe reallocation,thus indicating that the structure of the cell wall is important for efficient usage of the cell wall Fe pool.

关键词： Fe reallocation pectin galactosyltransferase Cdi

Atmospheric reductive catalytic fractionation of lignocellulose integrated with one-pot catalytic conversion of carbohydrate yielding valuable lignin monomers and platform chemicals from corn straw

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Green Energy & Environment 2025年第1期10卷 161-172页

作者： meng-Ying Liu Zhe-Hui Zhang Xue-qi wang qian Sun Chen Zhang Yu Li Zhuohua Sun Katalin Barta Feng Peng Tong-qi Yuan State Key Laboratory of Efficient Production of Forest Resources Beijing Forestry UniversityBeijing100083China Beijing Key Laboratory of Lignocellulosic Chemistry Beijing Forestry UniversityBeijing100083China Department of Chemistry Organic and Bioorganic ChemistryUniversity of GrazHeinrichstrasse 28/II8010 GrazAustria

Developing a cost-effective and environmentally friendly process for the production of valuable chemicals from abundant herbal biomass receives great attentions in recent ***,taking advantage of the“lignin first”strategy,corn straw is converted to valuable chemicals including lignin monomers,furfural and 5-methoxymethylfurfural via a two steps *** key of this research lies in the development of a green and low-cost catalytic process utilizing magnetic Raney Ni catalyst and high boiling point ethylene *** utilization of neat ethylene glycol as the sole slovent under atmospheric conditions obviates the need for additional additives,thereby facilitating the entire process to be conducted in glass flasks and rendering it highly convenient for scaling *** the initial step,depolymerization of corn straw lignin resulted in a monomer yield of 18.1 wt%.Subsequently,in a dimethyl carbonate system,the carbohydrate component underwent complete conversion in a one-pot process,yielding furfural and 5-methoxymethylfurfural as the primary products with an impressive yield of 47.7%.

关键词： Atmospheric reductive catalytic fractionation Corn straw Ethylene glycol Raney Ni 5-Methoxymethylfurfural

The effects of multidrug resistance protein 2 (Mrp2) and breast cancer resistance protein (Bcrp) on biliary excretion of cefditoren in rats

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沈阳药科大学学报 2008年第S1期25卷 79-80页

作者： meng qiang,LIU qi,wang Chang-yuan,LIU Ke-xin(Dalian Medical University,Dalian 116044,China)

Objective Cefditoren,a third-generation cephalosporin antibiotics,has been used in clinic *** Mrp2 or other canalicular transporters such as Bcrp and P-gp are involved in the biliary excretion of cefditoren is *** study is performed to investigate the role of the canalicular transporters in the biliary excretion of cefditoren and the effect of cefditoren on expression levels of some hepatic *** We examined the hepatobiliary disposition of cefditoren using probenecid,novobiocin and verapamil as the inhibitors of Mrp2,Bcrp and P-gp respectively in perfused rat *** concentration of cefditoren in the perfusate and bile were determined by RP-HPLC with ultraviolet detection at 295nm using a mobile phase composed of 0.1% ammonium acetate-methanol(65∶35).We also investigated the effects of cefditoren on expression of hepatic *** change in mRNA of main canalicular transporters was investigated by RT-PCR and Western blot after administration of *** The values for the hepatic extraction ratio did not change,whereas cumulative biliary excretion rates of cefditoren were significantly reduced to 43.78% and 79.52% over 25 min in the perfused probenecid and novobiocin rats,*** oral administration of cefditoren,the expression levels of Mrp2,Bcrp,Oat2 mRNA were markedly up-regulated,while Mdr1a and Oct1 mRNA were down-regulated by *** concordance with RT-PCR results,Mrp2 expression level was up-regulated by Western *** Mrp2 and Bcrp mediated the biliary excretion of cefditoren,whereas P-gp had no contribution to the transportation of cefditoren into *** expression levels of Mrp2,Bcrp and Oat2 mRNA were up-regulated and the expression levels of Mdr1a and Oct1 mRNA were down-regulated by *** results provide important data for drug-drug interaction.

关键词： Mrp2 Bcrp cefditoren

Heterodimensional structure with enhanced interface loss for microwave absorption and EMI shielding

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Science China Materials 2024年第12期67卷 4021-4030页

作者： Hong-Zhou Guan Zhan-Zhan wang meng-qi wang Hua-Zhang Zhai Mao-Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

The study of high-performance multifunctional electromagnetic materials is one of the inevitable challenges in the field of electromagnetic wave(EMW)*** order to improve the attenuation ability of EMW and broaden the frequency range of absorbing materials,rational design of material structure and interface is an important way to optimize the effective absorption bandwidth(EAB).Therefore,enhanced-interface and strongly polarized CuS/Ti_(3)C_(2)T_(X) composites were successfully synthesized by in-situ etching,sacrificial template and freeze-drying *** EMW absorption performance was improved by optimizing the hybridization ratio and loading *** maximum reflection loss of CuS@Ti_(3)C_(2)T_(X)(mass ratio=5:5)is−54.6 dB and the maximum EAB covering the major of Ku band is 4.72 GHz due to the interface polarization,multiple scattering and dipole *** addition,the electromagnetic interference shielding performance of CuS@Ti_(3)C_(2)T_(X)(mass ratio=3:7)is up to 23.9 dB.A new heterodimensional structure was developed by the spherical structure and lamellar,which realizes the broadband EMW absorption and electromagnetic protection.

关键词： heterodimensional structure CuS/Ti_(3)C_(2)T_(X) microwave absorption

Upcycling of monomers derived from waste polyester plastics via electrocatalysis

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Journal of Energy Chemistry 2025年第2期101卷 535-561页

作者： Haoye wang Richard Lee Smith Jr Xinhua qi College of Environmental Science and Engineering Nankai University Graduate School of Environmental Studies Tohoku University

Electrocatalysis offers efficient and targeted conversion of monomers derived from waste polyester plastics to chemical products under ambient temperature and pressure *** review provides analysis of research on electrochemical upgrading of monomers derived from waste polyester plastics published from2021 to *** for assessing upgrading of waste polyester plastics include alkaline hydrolysis pretreatment,indices of electrochemical reaction process(activity,stability,and techno-economic a nalysis),separation,and product *** of depolymerization monomers and their value-added products are summarized along with electrocatalytic mechanisms and reaction ***,cathode coupled reactions offer significant value for anodic waste plastic oxidation during electrolysis *** of bifunctional electrocatalysts can reduce the cost of coupled systems and complexity of the *** and recycling of waste plastic monomers using electrocatalytic technology should undergo downstream processing to form high-value products containing C-N and C-S derived functional groups obtained from depolymerized monomers,Electrochemical conversion and upgrading of monomers derived from waste polyester plastics can contribute to industrialization and global economies and help to realize environmental sustainability.

关键词： Coupling reaction Electrocatalysis Monomer Upgrade recycling Value-added products Waste plastics

NiNC Catalysts in CO_(2)-to-CO Electrolysis

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Nano-Micro Letters 2025年第4期17卷 363-366页

作者： Hao Zhang menghui qi Yong wang Department of Chemical Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA Department of Chemistry University of OxfordOxford OX13TAUK Advanced Materials and Catalysis Group Department of ChemistryInstitute of CatalysisZhejiang UniversityHangzhou 310058People’s Republic of China

CO_(2)-to-CO electrolyzer technology converts carbon dioxide into carbon monoxide using electrochemical methods,offering significant environmental and energy benefits by aiding in greenhouse gas mitigation and promoting a carbon circular *** study by Strasser et *** Nature Chemical Engineering presents a high-performance CO_(2)-to-CO electrolyzer utilizing a NiNC catalyst with nearly 100%faradaic efficiency,employing innovative diagnostic tools like the carbon crossover coefficient(CCC)to address transport-related failures and optimize overall ***’s research demonstrates the potential of NiNC catalysts,particularly NiNC-IMI,for efficient CO production in CO_(2)-to-CO electrolyzers,highlighting their high selectivity and ***,challenges such as localized CO_(2)depletion and mass transport limitations underscore the need for further optimization and development of diagnostic tools like *** for optimizing catalyst structure and operational parameters offer avenues for enhancing the performance and reliability of electrochemical CO_(2)reduction catalysts.

关键词： NiNC catalysts CO_(2)-to-CO electrolyzer Faradaic efficiency Carbon crossover coefficient(CCC) Mesoporous structures

Combined biochar and wheat-derived endophytic bacteria reduces cadmium uptake in wheat grains in a metal-polluted soil

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Journal of Environmental Sciences 2025年第1期147卷 165-178页

作者： Zhihui Xiong Yaping wang Linyan He qi Sheng Xiafang Sheng College of Life Sciences Key Laboratory of Agricultural and Environmental MicrobiologyMinistry of AgricultureNanjing Agricultural UniversityNanjing 210095China

In this study,two wheat-derived cadmium(Cd)-immobilizing endophytic Pseudomonas paralactis M14 and Priestia megaterium R27 were evaluated for their effects on wheat tissue Cd uptake under hydroponic ***,the impacts of the biochar(BC),M14+R27(MR),and BC+MR treatments on wheat Cd uptake and the mechanisms involved were investigated at the jointing,heading,and mature stages of wheat plants under field-plot conditions.A hydroponic experiment showed that the MR treatment significantly decreased the above-ground tissue Cd content compared with theM14 or R27 *** BC+MRtreatment reduced the grain Cd content by 51.5%-67.7%and Cd translocation factor at the mature stage of wheat plants and increased the organic matter-bound Cd content by 31%-75%in the rhizosphere soils compared with the BC or MR *** with the BC or MR treatment,the relative abundances of the biomarkers associated with Gemmatimonas,Altererythrobacter,Gammaproteobacteria,Xanthomonadaceae,Phenylobacterium,and Nocardioides in the BC+MR-treated rhizosphere microbiome decreased and negatively correlated with the organic matter-bound Cd *** the BC+MR-treated root interior microbiome,the relative abundance of the biomarker belonging to Exiguobacterium increased and negatively correlated with the Cd translocation factor,while the relative abundance of the biomarker belonging to Pseudonocardiaceae decreased and positively correlated with the Cd translocation *** findings suggested that the BC+MR treatment reduced Cd availability and Cd transfer through affecting the abundances of these specific biomarkers in the rhizosphere soil and root interior microbiomes,leading to decreased wheat grain Cd uptake in the contaminated soil.

关键词： Cd-immobilizing endophytic bacteria Cd-contaminated soil Biochar+endophytic bacteria Grain Cd uptake Specific biomarkers

低Reynolds数条件下水流纵掠长冰柱沿方位角传热特性

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化工学报 2018年第6期69卷 2424-2431页

作者：孟凡康褚琦王锦力辽宁工程技术大学土木工程学院辽宁阜新123000

通过实验研究了低Reynolds数条件下水流纵掠长冰柱过程的沿方位角相界面移动规律及传热特性。改变水流速度、水流温度、冰柱尺寸及冰柱初始温度等控制参数,采用非接触测量方法获得了冰柱融化图像,基于影像实验数据与冰柱相界面传热系数... 详细信息

通过实验研究了低Reynolds数条件下水流纵掠长冰柱过程的沿方位角相界面移动规律及传热特性。改变水流速度、水流温度、冰柱尺寸及冰柱初始温度等控制参数,采用非接触测量方法获得了冰柱融化图像,基于影像实验数据与冰柱相界面传热系数之间的映射关系,分析了沿方位角对流传热系数等传热参数的变化规律。结果表明:各测量点的沿方位角Nusselt数不同,随着融化过程的进行,各测量点的沿方位角Nusselt数值均先增大后减小,整个融化过程中间某处存在最大值;其余实验控制参数不变的条件下,沿方位角对流传热系数均随着水流速度或水流温度的增大而增加;获得了水流纵掠冰柱融化过程Nu?与Gr、Re、Pr、Ste及?之间的关联式。

关键词：水流纵掠冰柱相变对流传热