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One-pot synthesis of N-doped petroleum coke-based microporous carbon for high-performance CO_(2) adsorption and supercapacitors

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Journal of Environmental Sciences 2024年第5期139卷 93-104页

作者： Wenfu Zhu yuqin wang Fan Yao Xiaohong wang Haoming Zheng Guangzheng Ye Hairong Cheng Junliang Wu Haomin Huang Daiqi Ye School of Environment and Energy South China University of TechnologyGuangzhou 510006China National Engineering Laboratory for VOCs Pollution Control Technology and Equipment Guangzhou 510006China Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control(SCUT) Guangzhou 510006China Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal South China University of TechnologyGuangzhou 510006China

Waste resource utilization of petroleum coke is crucial for achieving global carbon emission ***,a series of N-doped microporous carbons were fabricated from petroleum coke using a one-pot synthesis *** as-prepared samples had a large specific surface area(up to 2512 m^(2)/g),a moderate-high N content(up to 4.82 at.%),and high population(55%)of ultra-micropores(<0.7 nm).Regulating the N content and ultra-microporosity led to efficient CO_(2)adsorption and *** ambient pressure,the optimal N-doped petroleum coke-based microporous carbon exhibited the highest CO_(2)uptake of 4.25 mmol/g at 25℃ and 6.57 mmol/g at 0℃.These values are comparable or even better than those of numerous previously reported adsorbents prepared by multistep synthesis,primarily due to the existence of *** sample exhibited excellent CO_(2)/N_(2)selectivity at 25℃ owing to the abundant basic pyridinic and pyrrolic N species;and showed superior CO_(2)adsorption-desorption cycling performance,which was maintained at 97% after 10 cycles at 25℃.Moreover,petroleum coke-based microporous carbon,with a considerably high specific surface area and hierarchical pore structure,exhibited excellent electrochemical performance over the N-doped sample,maintaining a favorable specific capacitance of 233.25F/g at 0.5 A/g in 6 mol/L KOH aqueous *** study provides insight into the influence of N-doping on the porous properties of petroleum coke-based ***,the as-prepared carbons were found to be promising adsorbents for CO_(2)adsorption,CO_(2)/N_(2)separation and electrochemical application.

关键词： One-pot synthesis N-doped microporous carbon CO_(2)adsorption CO_(2)/N_(2)selectivity Electrochemical performance

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Understanding the rapid spread of antimicrobial resistance genes mediated by IS26

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mLife 2024年第1期3卷 101-109页

作者： Na Tang Dawei Wei Yuan Zeng Gang Zhang Chao wang Jie Feng yuqin Song State Key Laboratory of Microbial Resources Institute of MicrobiologyChinese Academy of SciencesBejingChina College of Life Science University of Chinese Academy of SciencesBeijingChina

Insertion sequences(ISs)promote the transmission of antimicrobial resistance genes(ARGs)across bacterial ***,their contributions and dynamics during the transmission of resistance remain *** this study,we selected is26 as a representative transposable element to decipher the relationship between ISs and ARGs and to investigate their transfer features and transmission *** retrieved 2656 translocatable IS26-bounded units with ARGs(tiS26-bUs-ARGs)in complete bacterial genomes from the NCBI RefSeq *** total,124 ARGs spanning 12 classes of antibiotics were detected,and the average contribution rate of IS26 to these genes was 41.2%.We found that IS26-bounded units(IS26-bUs)mediated extensive ARG dissemination within the bacteria of the Gammaproteobacteria class,showing strong transfer po-tential between strains,species,and even *** Is26-bUs expanded in bacterial populations over time,and their temporal expansion trend was significantly correlated with antibiotic *** wide dissemination could be due to the nonspecific target site preference of ***,we experimentally confirmed that the introduction of a single copy of is26 could lead to the formation of a composite transposon mediating the transmission of“passenger”*** observations extend our knowledge of the IS26 and provide new insights into the mediating role of ISs in the dissemination of antibiotic resistance.

关键词： antibiotic consumption antibiotic resistance genes horizontal gene transfer insertion sequence IS26

Advanced 2D molybdenum disulfide for green hydrogen production: Recent progress and future perspectives

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Frontiers in Energy 2024年第3期18卷 308-329页

作者： Meng FANG yuqin PENG Puwei WU Huan wang Lixin XING Ning wang Chunmei TANG Ling MENG Yuekuan ZHOU Lei DU Siyu YE Huangpu Hydrogen Energy Innovation Centre School of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006China Sustainable Energy and Environment Thrust Function HubThe Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400China Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyHong KongChina SinoHykey Technology Company Ltd. Guangzhou 510760China

The development of renewable and affordable energy is crucial for building a sustainable society. In this context, establishing a sustainable infrastructure for renewable energy requires the integration of energy storage, specifically use of renewable hydrogen. The hydrogen evolution reaction (HER) of electrochemical water splitting is a promising method for producing green hydrogen. Recently, two-dimensional nanomaterials have shown great promise in promoting the HER in terms of both fundamental research and practical applications due to their high specific surface areas and tunable electronic properties. Among them, molybdenum disulfide (MoS2), a non-noble metal catalyst, has emerged as a promising alternative to replace expensive platinum-based catalysts for the HER because MoS_(2)has a high inherent activity, low cost, and abundant reserves. At present, greatly improved activity and stability are urgently needed for MoS_(2)to enable wide deployment of water electrolysis devices. In this regard, efficient strategies for precisely modifying MoS_(2)are of interest. Herein, the progress made with MoS_(2)as an HER catalyst is reviewed, with a focus on modification strategies, including phase engineering, morphology design, defect engineering, heteroatom doping, and heterostructure construction. It is believed that these strategies will be helpful in designing and developing high-performance and low-cost MoS2-based catalysts by lowering the charge transfer barrier, increasing the active site density, and optimizing the surface hydrophilicity. In addition, the challenges of MoS_(2)electrocatalysts and perspectives for future research and development of these catalysts are discussed.

关键词： molybdenum disulfide(MoS_(2)) hydrogen evolution reaction(HER) active site electrocatalyst modification strategie

Haplotype-based phylogenetic analysis and population genomics uncover the origin and domestication of sweetpotato

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Molecular Plant 2024年第2期17卷 277-296页

作者： Mengxiao Yan Ming Li Yunze wang Xinyi wang M-Hossein Moeinzadeh Dora G.Quispe-Huamanquispe Weijuan Fan Yijie Fang yuqin wang Haozhen Nie Zhangying wang Aiko Tanaka Bettina Heider Jan F.Kreuze Godelieve Gheysen Hongxia wang Martin Vingron Ralph Bock Jun Yang Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai 201602China College of Life Sciences Chongqing Normal UniversityChongqing 401331China Biotechnology and Nuclear Technology Research Institute Sichuan Academy of Agricultural SciencesChengdu 610061China College of Life Sciences Shanghai Normal UniversityShanghai 200234China Department of Computational Molecular Biology Max Planck Institute for Molecular GeneticsIhnestraBe 63-7314195 BerlinGermany Department of Biotechnology Ghent University9000 GhentBelgium Guangdong Provincial Key Laboratory of Crops Genetics and Improvement Crop Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China Graduate School of Bioagricultural Sciences Nagoya UniversityChikusaNagoya 464-8601Japan international Potato Center(CIP) LimaPeru CAS Center for Excellence of Molecular Plant Sciences Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200233China Max-Planck-Institut fur Molekulare Pflanzenphysiologie Am Muhlenberg 114476 Potsdam-GolmGermany

The hexaploid sweetpotato(lpomoea batatas)is one of the most important root crops ***,its genetic origin remains controversial,and its domestication history remains *** this study,we used a range of genetic evidence and a newly developed haplotype-based phylogenetic analysis to identify two probable progenitors of *** diploid progenitor was likely closely related to lpomoea ae-quatoriensis and contributed the B,subgenome,IbT-DNA2,and the lineage 1 type of chloroplast genome to *** tetraploid progenitor of sweetpotato was most likely *** 4x,which donated the B2 subgenome,IbT-DNA1,and the lineage 2 type of chloroplast *** most likely originated from reciprocal crosses between the diploid and tetraploid progenitors,followed by a subsequent whole-genome *** addition,we detected biased gene exchanges between the subgenomes;the rate of B,to B2 subgenome conversions was nearly three times higher than that of B2 to B subgenome *** analyses revealed that genes involved in storage root formation,maintenance of genome stabil-ity,biotic resistance,sugar transport,and potassium uptake were selected during the speciation and domestication of *** study sheds light on the evolution of sweetpotato and paves the way forimprovementofthiscrop.

关键词： sweetpotato origin gene conversion domestication IbT-DNA HPA

Calycosin improves atherosclerosis by reshaping the interaction between the gut microbiome and bile acid metabolism

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Food Science and Human Wellness 2024年

作者： Jiaqi Fu Donghua Yu yuqin Liang Xin Gao Yunhe Shi Yu wang Pingping Chen Shumin Liu Fang Lu Institute of Traditional Chinese Medicine Heilongjiang University of Chinese Medicine

Calycosin， Astragali Radix most prominent ingredient， has drawn more attention as a result of its ability to treat atherosclerosis(AS). However， the mechanism of action has not been fully elucidated. We investigated the effects of calycosin on bile acid (BA) metabolism and gut microbiome in ApoE-/-mice fed a high-fat diet (HFD). The data showed that the aorta of ApoE-/-mice treated with HFD showed significant atheromatous plaque formation and lipid accumulation， and the levels of TC， TG and LDL-C were significantly increased， while the levels of HDL-C were significantly decreased. Calycosin can substantially regulate lipid levels， thereby alleviating liver lipid deposition induced by atherosclerosis. In addition， 16S rRNA sequencing showed that calycosin treatment has reshaped the gut microbiota disturbed by HFD， in particular， increasing the ratio of Bacteroidetes/Firmicutes， and improving the relative abundance of Bilophila， Desulfovibrio， Bacteroides， Lactobacillus， etc. Meanwhile， targeted metabolomics analysis showed that calycosin treatment significantly modulated CDCA， TCA， LCA， DCA， TDCA and bile acid pool composition， which were associated with atherosclerotic plaque areas. In addition， calycosin treatment also down-regulated FXR protein levels and up-regulated CYP7A1 protein levels in the hepatic. At the same time， calycosin inhibits the ileum FXR/TGR5 signaling pathway， inhibits BA reabsorption， promotes BA excretion， and reduces hepatic cholesterol accumulation by enterohepatic circulation. In addition， we found that calycosin significantly promoted the expression of hepatic ABCA1 and ABCG1 to mediate cholesterol efflux. Meanwhile， calycosin regulates gut microbiota， and Bacteroides， Alistipes， Desulfovibrio， Lactobacillus， Bilophila and Odoribacter are closely related to specific BAs. This enables us to further understand the relationship between BA metabolism and gut microbiota. Calycosin may reduce high-fat diet-induced hepatic cholesterol accumulatio

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Anodic Electrosynthesis of Amide from Alcohol and Ammonia

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CCS Chemistry 2024年第1期6卷 125-136页

作者： Yuxuan Lu Yingying Li Bo Zhou Jingcheng Wu Ling Zhou Yuping Pan Zhongcheng Xia Ming Yang Yandong Wu Zhenran Yuan Rixin Peng Zhijie Kong Shuangyin wang yuqin Zou State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringAdvanced Catalytic Engineering Research Center of the Ministry of EducationHunan UniversityChangsha 410082 Shenzhen Institute of Hunan University Shenzhen 518057 School of Chemistry and Chemical Engineering Jishou UniversityJishouHunan 416000

Amide is essential in biologically active compounds,synthetic materials,and building ***,conventional amide production relies on energyintensive consumption and activating agents that modulate processes to construct the C–N ***,for the first time,we have successfully realized the formation of amides at industrial current density via the anodic coelectrolysis of alcohol and ammonia under ambient *** have proved thatmodulation of the interface microenvironment concentration of nucleophile by electrolyte engineering can regulate the reaction pathways of amides rather than acetic *** C-N coupling strategy can be further extended to the electrosynthesis of the long-chain and aryl-ring amide with high selectivity by replacing ammonia with *** work opens up a vast store of information on the utilization of biomass alcohol for high-value N-containing chemicals via an electrocatalytic C-N coupling reaction.

关键词： electrocatalysis electrocatalysts biomass upgrading elctrochemical oxidation coupling amide production

Theoretical and experimental investigations on single-atom catalysis:Pt1/FeOx for water-gas shift reaction Shan-Fei wang1,§,Yangyang Li2,3,§,Haiyan wang1,Jin-Xia Liang1(✉),Chun Zhu1

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Nano Research 2024年第9期17卷 8627-8637页

作者： Shan-Fei wang Yangyang Li Haiyan wang Jin-Xia Liang Chun Zhu Botao Qiao School of Chemistry and Chemical Engineering Guizhou UniversityGuiyang 550025China CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China

Oxide-supported metal single-atom catalysts(SACs)have exhibited excellent catalytic performance for water-gas shift(WGS)***,we report the single-atom catalyst Pt1/FeOx exhibits excellent medium temperature catalytic performance for WGS reactions by the density functional theory(DFT)calculations and experimental *** calculations indicate that H_(2)O molecules are easily dissociated at oxygen vacancies,and the formed*OH and*O are adsorbed on Pt1 single atoms and the adjacent O atoms,*** studying four possible reaction mechanisms,it is found that the optimal WGS reaction pathway is proceeded along the carboxyl mechanism(pathway III),in which the formation of*COOH intermediates can promote the stability of Pt1/FeOx SAC and the easier occurrence of WGS *** energy barrier of the rate-determining step during the entire reaction cycle is only 1.16 eV,showing the high activity for the medium temperature WGS reaction on Pt1/FeOx SAC,which was verified by experimental ***,the calculated turnover frequencies(TOFs)of CO_(2)and H_(2)formation on Pt1/FeOx at 610 K(337℃)can reach up to 1.14×10^(-3)s^(-1)·site^(-1)through carboxyl *** this work,we further expand the application potential of Pt1/FeOx SAC in WGS reaction.

关键词： water-gas shift(WGS)reaction single-atom catalyst(SAC) density functional theory(DFT) thermocatalysis

Bidirectional relationship between type 2 diabetes mellitus and coronary artery disease:Prospective cohort study and genetic analyses

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Chinese Medical Journal 2024年第5期137卷 577-587页

作者： Wenqiang Zhang Li Zhang Chenghan Xiao Xueyao Wu Huijie Cui Chao Yang Peijing Yan Mingshuang Tang Yutong wang Lin Chen Yunjie Liu Yanqiu Zou Ling Zhang Chunxia Yang yuqin Yao Jiayuan Li Zhenmi Liu Xia Jiang Ben Zhang Department of Epidemiology and Biostatistics Institute of Systems EpidemiologyWest China-Peking Union Medical College C.C.Chen Institute of HealthWest China School of Public Health and West China Fourth HospitalSichuan UniversityChengduSichuan 610041China Department of Maternal Child and Adolescent HealthWest China School of Public Health and West China Fourth HospitalSichuan UniversityChengduSichuan 610041China Department of Iatrical Polymer Material and Artificial Apparatus School of Polymer Science and EngineeringSichuan UniversityChengduSichuan 610041China Department of Occupational and Environmental Health West China School of Public Health and West China Fourth HospitalSichuan UniversityChengduSichuan 610041China Department of Nutrition and Food Hygiene West China School of Public Health and West China Fourth HospitalSichuan UniversityChengduSichuan 610041China Department of Clinical Neuroscience Karolinska InstitutetStockholm 17177Sweden

Background:While type 2 diabetes mellitus(T2DM)is considered a putative causal risk factor for coronary artery disease(CAD),the intrinsic link underlying T2DM and CAD is not fully *** aimed to highlight the importance of integrated care targeting both diseases by investigating the phenotypic and genetic relationships between T2DM and ***:We evaluated phenotypic associations using data from the United Kingdom Biobank(N=472,050).We investigated genetic relationships by leveraging genomic data conducted in European ancestry for T2DM,with and without adjustment for body mass index(BMI)(T2DM:N_(case)/N_(control)=74,124/824,006;T2DM adjusted for BMI[T2DM_(adj)BMI]:N_(case)/N_(control)=50,409/523,897)and for CAD(N_(case)/N_(control)=181,522/984,168).We performed additional analyses using genomic data conducted in multiancestry individuals for T2DM(N_(case)/N_(control)=180,834/1,159,055).Results:Observational analysis suggested a bidirectional relationship between T2DM and CAD(T2DM→CAD:hazard ratio[HR]=2.12,95%confidence interval[CI]:2.01–2.24;CAD→T2DM:HR=1.72,95%CI:1.63–1.81).A positive overall genetic correlation between T2DM and CAD was observed(r_(g)=0.39,P=1.43×10^(-75)),which was largely independent of BMI(T2DM_(adj)BMI–CAD:r_(g)=0.31,P=1.20×10^(–36)).This was corroborated by six local signals,among which 9p21.3 showed the strongest genetic ***-trait meta-analysis replicated 101 previously reported loci and discovered six novel pleiotropic *** randomization analysis supported a bidirectional causal relationship(T2DM→CAD:odds ratio[OR]=1.13,95%CI:1.11-1.16;CAD→T2DM:OR=1.12,95%CI:1.07-1.18),which was confirmed in multiancestry individuals(T2DM→CAD:OR=1.13,95%CI:1.10-1.16;CAD→T2DM:OR=1.08,95%CI:1.04-1.13).This bidirectional relationship was significantly mediated by systolic blood pressure and intake of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors,with mediation proportions of 54.1%(95%CI:24.9-83.4%)and 90.4%(95%CI

关键词： Type 2 diabetes mellitus Coronary artery disease Phenotypic association Genetic correlation Mendelian randomization

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基于生态系统服务供需变化的赤水河流域生态修复分区与策略

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地质通报 2024年第8期43卷 1315-1324页

作者：孙雨芹王军杨智威自然资源部国土整治中心(自然资源部土地科技创新中心) 自然资源部土地整治重点实验室北京100035 北京大学城市与环境学院自然资源部生态系统一体化修复与可持续利用工程技术创新中心北京100871

生态系统服务是连接自然生态系统和社会经济系统的关键桥梁,对经济社会发展和保障人类福祉具有重要意义。从生态系统服务供给与需求的关系出发,开展生态修复分区研究,是新时期因地制宜制定针对性生态保护修复策略和协调区域间发展的重... 详细信息

生态系统服务是连接自然生态系统和社会经济系统的关键桥梁,对经济社会发展和保障人类福祉具有重要意义。从生态系统服务供给与需求的关系出发,开展生态修复分区研究,是新时期因地制宜制定针对性生态保护修复策略和协调区域间发展的重要前提。以赤水河流域为研究区,以409个街道(镇)为评价单元,分析2010—2020年生态系统服务供需变化及二者耦合协调程度。其中,高阶耦合(n=61)、高阶失调(n=140)、低阶失调(n=63)和低阶耦合(n=145)的供给变化量(z-score标准化)分别为1.7±2.1、−0.9±2.2、5.9±6.4和−0.1±0.5,需求变化量(z-score标准化)分别为0.6±1.1、2.1±2.4、0.7±2.4和−0.5±0.4。结合各区供需变化量本文提出了生态保育型、重点修复型、生态连通型、价值转化型等赤水河流域差异化生态保护修复分区策略,为区域生态保护修复提供了科学依据。

关键词：生态系统服务供需耦合关系生态修复分区生态修复策略赤水河流域