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2D Ca/Nb-based perovskite oxide with Ta doping as highly efficient H_(2)O_(2)synthesis catalyst

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Nano Research 2024年第6期17卷 4934-4942页

作者： Xingchen Yang Yang Gao Xiaohui Xu Wenqiang Xu Denghui Wang Bin Luo Dong Liu tao liang Bin Wang CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandSt LuciaQLD 4072Australia State Key Laboratory of Organic–Inorganic Composites College of Chemical EngineeringCollege of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China State Key Lab of Silicon Materials Zhejiang UniversityHangzhou 310027China

Perovskite oxides(POs)are emerging as a class of highly efficient catalysts for reducing oxygen to H_(2)*** a rich variety of POs-based catalysts have been developed by tuning the complex composition,a highly efficient PO catalyst that is able to alter the reaction pathway from a 4e−process to a 2e−process for H_(2)O_(2)production has rarely been *** modified the structure and composition of a Ca-and Nb-based PO material by realizing a uniform two-dimensional(2D)morphology and varied Ta doping,resulting in the 2D Ca_(2)Nb_(3−x)Ta_(x)O_(10)−(x=0,0.5,1,and 1.5)monolayer *** obtained catalysts exhibit a dominant 2e−pathway and show exceptional H_(2)O_(2)production *** typical Ca_(2)Nb_(2.5)Ta_(0.5)O_(10)−nanoflakes showed an onset potential of 0.735 V *** hydrogen electrode(RHE),a remarkably high selectivity over 95%across a wide range of 0.3-0.7 V,an impressively high Faradaic efficiency of 94%,and a notable H_(2)O_(2)productivity of 1571 mmol·gcat^(−1)·h^(−1).These findings highlight the great potential of 2D perovskite oxide nanoflakes as advanced electrocatalysts for 2e−oxygen reduction reaction.

关键词： perovskite oxide H_(2)O_(2) two-electron oxygen reduction reaction catalyst Ca_(2)Nb_(3-x)Ta_(x)O_(10)-nanoflakes

Sorbitol-Electrolyte-Additive Based Reversible Zinc Electrochemistry

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电化学（中英文） 2024年第7期30卷 28-37页

作者： Qiong Sun Hai-Hui Du Tian-Jjiang Sun Dian-tao Li Min Cheng Jing liang Hai-Xia Li Zhan-liang tao Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin300071China Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China School of Chemistry and Life SciencesSuzhou University of Science and TechnologySuzhou 215009JiangsuChina

The unstable zinc(Zn)/electrolyte interfaces formed by undesired dendrites and parasitic side reactions greatly hinder the development of aqueous zinc ion ***,the hydroxy-rich sorbitol was used as an additive to reshape the solvation structure and modulate the interface *** strong interactions among sorbitol and both water molecules and Zn electrode can reduce the free water activity,optimize the solvation shell of water and Zn^(2+)ions,and regulate the formation of local water(H_(2)O)-poor environment on the surface of Zn electrode,which effectively inhibit the decomposition of water molecules,and thus,achieve the thermodynamically stable and highly reversible Zn *** a result,the assembled Zn/Zn symmetric cells with the sorbitol additive realized an excellent cycling life of 2000 h at 1 mA·cm^(-2)and 1 mAh·cm^(-2),and over 250 h at 5 ***^(-2)and 5 ***^(-2).Moreover,the Zn/Cu asymmetric cells with the sorbitol additive achieved a high Coulombic efficiency of 99.6%,obtaining a better performance than that with a pure 2 mol-L^(-1)ZnSO_(4)*** the constructed Zn/poly1,5-naphthalenediamine(PNDA)batteries could be stably discharged for 2300 cycles at 1 A g^(-1)with an excellent capacity retention *** result indicates that the addition of 1 mol-L^(-1)non-toxic sorbitol into a conventional ZnSO_(4)electrolyte can successfully protect the Zn anode interface by improving the electrochemical properties of Zn reversible deposition/decomposition,which greatly promotes its cycle performance,providing a new approach in future development of high performance aqueous Zn ion batteries.

关键词： Aqueous zinc ion batteries Dendrite Sorbitol additive Solvation regulation Interface modulation

Fight or flee,a vital choice for Clostridioides difficile

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mLife 2024年第1期3卷 14-20页

作者： Ji Zeng Sshuying Fang Jinquan Guo Min Dong Guo-Bao Tian liang tao School of Biomedical and Pharmaceutical Sciences Guangdong University of TechnologyGuangzhouChina Department of Brest Surgery Panyu Central Hospital.GuangzhouChina Department of Microbiology Harvard Medical SchoolBostonMassachusettsUSA Department of Urology Boston Children's HospitalHarvard Medical SchoolBostonMassachusettsUSA Department of Microbiology Zhongshan School of MedicineSun Yat-sen UniversityGuangzhouChina Advanced Medical Technology Center The First Affiliated HospitalZhongshan School of MedicineSun Yat-sen UniversityGuangzhouChina Key Laboratory of Tropical Diseases Control(Sun Yat-sen University) Ministry of EducationGuangzhouChina School of Medicine Xizang Minzu UniversityXianyangChina Center for Infectious Disease Research Westlake Laboratory of Life Sciences and BiomedicineWestlake UniversityHangzhouChina Research Center for Industries of the Future School of Life SciencesWestlake UniversityHangzhouChina

Clostridioides difficile is a leading cause of healthcare-associated infections,causing billions of economic losses every *** symptoms range from mild diarrhea to life-threatening damage to the *** and recurrence of *** infection(CDl)are mediated by the metabolically dormant spores,while the virulence of *** is mainly due to the two large clostridial toxins,TcdA and *** toxins or forming spores are two different strategies for *** to cope with harsh environmental *** is of great significance to understand the molecular mechanisms for *** to skew to either of the cellular ***,we summarize the current understanding of the regulation and connections between toxin production and sporulation in *** and further discuss the potential solutions for yet-to-be-answered questions.

关键词： C.difficile sporulation TcdA TcdB toxin production

Facile construction of Mxene-supported niobium hydride nanoparticles toward reversible hydrogen storage in magnesium borohydride

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Rare Metals 2024年第9期43卷 4387-4400页

作者： Ao Xia Jia-Guang Zheng Qing-Bo Zhang Yu-Gang Shu Cheng-Guo Yan Liu-Ting Zhang Zhan-liang tao Li-Xin Chen School of Energy and Power Jiangsu University of Science and Technology Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai University State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang University

The facile construction of nanoscale NbHxsupported by Ti3C2（NbHx@Ti3C2） was achieved using facile ball milling strategy to improve the hydrogen desorption kinetics and reversibility of magnesium borohydride (Mg（BH4）2).The doping of 30 wt%NbHx@Ti3C2catalyst reduced the onset dehydrogenation temperature of Mg（BH4）2to 71.2℃.Additionally,the Mg（BH4）2+30NbHx@Ti3C2composite achieved remarkable hydrogen release of over 9.2 wt% at a temperature as low as 230℃,indicating unexpected dehydrogenation ***,the reversibility of NbHx@Ti3C2doped Mg（BH4）2was retained to more than 4.2 wt%after four cycles,which was increased by 68% compared to that of undoped Mg（BH4）*** strong catalysis of NbHx@Ti3C2catalyst could be attributed to the synergistic effect of NbHxand Ti3C2in hydrogen spillover and *** as a??hydrogen pump??for effective hydrogen spillover,while Ti3C2created numerous diffusion channels for hydrogen dissolution and provided the active catalytic site to facilitate the re/dehydrogenation of Mg（BH4）2.

关键词： Catalysts Hydrogen storage Magnesium borohydride Mxene

Research on the Comprehensive Development Trend of National Fitness Activity Centers

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Journal of World Architecture 2024年第3期8卷 84-92页

作者： liang tao Jiaqi Wang South China University of Technology Guangzhou 510000Guangdong ProvinceChina

With the further advancement of the“National Fitness”strategy and the continuous development of the information age,the National Fitness Activity Centers have become more *** comprehensiveness is reflected in the design of diversified sports functions and *** article serves to explore the comprehensive development trend of National Fitness Activity *** summarizing and sorting out domestic and foreign cases,the trend of the comprehensive development of National Fitness Activity Centers is predicted at three levels:industry,city,and individual functions.

关键词： National fitness National fitness activity center Comprehensive development trend

Exploration of cyclooxygenase-2 inhibitory peptides from walnut dreg proteins based on in silico and in vitro analysis

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Food Science and Human Wellness 2024年第3期13卷 1636-1644页

作者： Zishan Hong Jing Xie liang tao Jing-Jing Dai Tingting Li Li Zhang Yuying Bai Xia Hu Jinlian Chen Jun Sheng Yang Tian College of Food Science and Technology Yunnan Agricultural UniversityKunming 650201China Yunnan Provincial Key Laboratory of Precision Nutrition and Personalized Food Manufacturing Yunnan Agricultural UniversityKunming 650201China Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources Ministry of EducationYunnan Agricultural UniversityKunming 650201China School of Tea and Coffee Pu’er UniversityPu’er 665000China Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food Yunnan Agricultural UniversityKunming 650201China Key Laboratory of Pu-er Tea Science Ministry of EducationYunnan Agricultural UniversityKunming 650201China

Walnut dreg protein hydrolysates(WDPHs)exhibit a variety of biological activities,however,the cyclooxygenase-2(COX-2)inhibitory peptide of WDPHs remain *** aim of this study was to rapidly screen for such peptides in WDPHs through a combination of in silico and in vitro *** total,1262 peptide sequences were observed by nano liquid chromatography/tandem mass spectrometry(nano LC-MS/MS)and 4 novel COX-2 inhibitory peptides(AGFP,FPGA,LFPD,and VGFP)were *** kinetic data indicated that AGFP,FPGA,and LFPD displayed mixed-type COX-2 inhibition,whereas VGFP was a non-competitive *** is mainly because the peptides form hydrogen bonds and hydrophobic interactions with residues in the COX-2 active *** results demonstrate that computer analysis combined with in vitro evaluation allows for rapid screening of COX-2 inhibitory peptides in walnut protein dregs.

关键词： Walnut dreg proteins Cyclooxygenase-2 inhibitory peptide Identification Virtual screening Molecular docking

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Insights of carbon reduction practices from Winter Olympics 2022

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Science Bulletin 2024年第13期69卷 2034-2037页

作者： Xiaoyong Liao Shuai Zhong Jie Huang Zhu Liu Ayman Elshkaki You Li Lei Shen Yingli He Li An Yidong Zhu Wenhao Sun tao liang Jiaoe Wang Jinwei Dong Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory for Resources Use and Environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Regional Sustainable Development Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Department of Earth System Science Tsinghua UniversityBeijing 100084China

Concerns about the carbon emissions of mega-events revolve,mainly due to the impactful demonstration effects they ***,accurate monitoring of these emissions is crucial during such events[1].The Olympic and Paralympic Winter Games Beijing 2022(hereinafter“Winter Olympics 2022”)are recognized as the first Games to pay close attention to a wide range of emissions associated with all stages of the *** of emerging carbon reduction technologies,such as low-carbon materials and technologies,have shown promising effects on efforts to achieve carbon neutrality[2].The impacts of individual measures,such as Olympic infrastructure construction.

关键词： Winter emissions carbon

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应重视荀子思想的历时性发展之维

中国哲学史 2024年第4期 5-12页

作者：梁涛中国人民大学国学院

目前荀学研究中普遍存在忽视荀子思想历时性发展的问题,学者往往把《荀子》三十二篇看作一个整体,用某一篇或几篇的观点去解读其他各篇,结果得出不同的观点,造成不必要的争论,或者指责荀子思想存在内在矛盾。荀子一生经历居赵、游齐、... 详细信息

目前荀学研究中普遍存在忽视荀子思想历时性发展的问题,学者往往把《荀子》三十二篇看作一个整体,用某一篇或几篇的观点去解读其他各篇,结果得出不同的观点,造成不必要的争论,或者指责荀子思想存在内在矛盾。荀子一生经历居赵、游齐、退居兰陵三个阶段,分别受到赵文化、齐文化和鲁文化的影响,《荀子》为议论体,其各篇是荀子在不同时期完成的,存在观点的变化是正常现象。荀子的人性论是情性一知性说,既认为放纵情性会导致争夺、混乱,又主张依据知性可以明确规范,建立秩序,只不过对情性、知性的具体理解存在前后的变化,因而存在不同的表达。性恶心善说是《性恶》篇的人性论主张,是对情性-知性说的具体表达,不适合运用到其他各篇。荀子没有提出性朴说,而是主张朴-伪说或性朴-伪盛说,它同样只适用于《礼论》篇,不可推及到其他各篇。荀学研究者应当借鉴西方学者对柏拉图、亚里士多德进行历时性研究已经是普遍性做法,完成从系统-统一论范式到历史-发生论范式的转变。

关键词：荀学历时性情性-知性性恶心善性朴

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安大简《仲尼曰》与“君子慎独”再探讨

北京大学学报（哲学社会科学版） 2024年第1期61卷 42-51页

作者：梁涛中国人民大学国学院北京100872

最近公布的安徽大学藏战国竹简《仲尼曰》论及慎独,明确肯定慎独是指谨慎于“人之所不闻与人之所不见”,表明慎独的“独”确有独居独处之意,与简帛《五行》强调“能为一”、《大学》主张“诚其意”的慎独有所不同,说明慎独的含义经历了... 详细信息

最近公布的安徽大学藏战国竹简《仲尼曰》论及慎独,明确肯定慎独是指谨慎于“人之所不闻与人之所不见”,表明慎独的“独”确有独居独处之意,与简帛《五行》强调“能为一”、《大学》主张“诚其意”的慎独有所不同,说明慎独的含义经历了从谨慎于独处的原初意到谨慎于内心的引申意的变化。而之所以出现这种变化,是因为谨慎于独居独处,要靠道德自律,靠内在的道德自觉。这样慎独必然要从强调谨慎独居时的行为向重视内在意志、意念转化。由于先秦两汉的学者既在原初意,也在引申意,以及引申兼原初意上使用慎独,这样就造成慎独语意的复杂情况。郑玄、朱熹对慎独的注释都有不准确、不完善的地方。对于慎独的理解和研究,要从马王堆时代的“不同”说、郭店时代的“相同”说,走向安大简时代的“发展”说,从发展、演变的角度对慎独的语意做出分析和探讨。

关键词：安大简《仲尼曰》慎独郑玄朱熹

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