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Pyrrole derivatives as interlayer modifier of Li-S batteries:Modulation of electrochemical performance by molecular perturbation

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Journal of Energy Chemistry 2022年第12期75卷 164-172,I0005页

作者： Jiajv Lin Yuan Zhou Jingbo Wen Weijie Si Hongcheng Gao Gongming Wang Xiongwu Kang New Energy Research Institute School of Environment and EnergySouth China University of TechnologyGuangzhou 510006GuangdongChina Key Laboratory of Aqueous Environment Protection and Pollution Control of Yangtze River in Anhui of Anhui Provincial Education DepartmentCollege of Resources and EnvironmentAnqing Normal UniversityAnqing 246011AnhuiChina Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry University of Science&Technology of ChinaHefei 230026AnhuiChina

The electrochemical performance of lithium-sulfur(Li-S)batteries is strongly hampered by the shuttle effect and slow redox kinetics of lithium polysulfides(Li PSs).Surface modified interlayer of a separator of Li-S batteries is demonstrated to be an effective strategy to overcome this ***,cobalt nanoparticles confined in nitrogen co-doped porous carbon framework(Co-CN)were developed from pyrolysis of ZIF-67 and used as interlayer of PP separator for Li-S batteries,and were functionalized by four pyrrole derivatives,1-phenylpyrrole,1-methyl pyrrole,1-(p-toluenesulfonyl)pyrrole,and 1-pyrrole,respectively,which were screened in terms of the electron-withdrawing/donating ability of the substituent groups on the pyrrolic *** impact of the molecular structure of pyrrole derivatives on the interaction with Li PSs and the electrochemical performance of Li-S batteries were explored by nuclear magnetic resonance and theoretical *** is uncovered that 1-phenylpyrrole shows the highest enhancement of redox kinetics of Li PSs,attributing to the optimal interaction with Co nanoparticles and Li ***,1-phenylpyrrole modified Co-CN interlayer enables the best electrochemical performance for the Li-S batteries,delivering a specific capacity of 562 m Ah g^(-1)at 5 C and a capacity of 538,526,and 449 m Ah g^(-1)after 500 cycles at 1,2,and 3 C,*** a high sulfur loading of 5.5 mg cm^(-2),it achieves a capacity of 440 m Ah g^(-1)after 500 cycles at 1 *** work reveals the interaction mechanism among Li PSs,Co nanoparticles and the molecular modifiers in improving the electrochemical performance of Li-S batteries.

关键词： Pyrrole derivatives Surface modification Interlayer Catalysis Redox kinetics

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Analyzing the trends and hotspots of biochar’s applications in agriculture,environment,and energy:a bibliometrics study for 2022 and 2023

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Biochar 2024年第1期6卷 1390-1407页

作者： Ping Wu Yingdong Fu Tony Vancov Hailong Wang Yujun Wang Wenfu Chen Hebei Key Laboratory of Soil Ecology Hebei Key Laboratory of Agricultural Water ResourcesCenter for Agricultural Resources ResearchInstitute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050022China. School of Life Sciences Institute of Life Sciences and Green DevelopmentHebei UniversityBaoding 071002HebeiChina. NSW Department of Primary Industries Elizabeth Macarthur Agricultural Insti-tuteMenangleNSW 2568Australia. School of Environmental and Chemical Engineering Foshan UniversityFoshan 528000GuangdongChina. Guangdong Provincial Key Laboratory of Integrated Agro-Environmental Pollution Control and Management Institute of Eco-Environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China. Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008JiangsuChina. University of Chinese Academy of Sciences Beijing 100049China. Biochar Engineering and Technology Research Center of Liaoning Province Rice Research InstituteAgronomy CollegeShenyang Agricultural UniversityShenyang 110866LiaoningChina.

Biochar,produced from the thermochemical conversion of biomass waste,has various applications owing to its broad utility and advantageous *** study employs a scientometric approach to comprehensively assess the advancements in biochar application from 2022 to *** 13,357 bibliographic records sourced from the Web of Science Core Collection with the search term“biochar”,the analysis focuses on authorship,national contributions,and keyword *** demonstrate a continual rise in annual publications since 2009,albeit with a moderated growth rate in *** leads in publication outputs,followed by USA and India,with Hailong Wang emerging as a prominent figure in biochar *** co-occurrence analyses identify key research themes such as biochar’s role in climate change mitigation,easing salinity and drought stress,immobilizing toxic metals,degrading organic pollutants,serving as additives in anaerobic digestion,and functioning as electrodes in microbial fuel *** these,biochar’s application for global climate change mitigation gains significant attention,while its utilization as electrodes in microbial fuel cells emerges as a promising research frontier,indicating the growing need for sustainable energy *** study also outlines critical research gaps and future priorities for enhancing biochar ***,it highlights the diverse applicability of biochar and offers valuable insight into research progression and forthcoming directions in biochar studies.

关键词： Bibliometric analysis Research hotspots Carbon neutrality Microbial fuel cells Sustainable application

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Stability control of gob-side entry retained under the gob with close distance coal seams

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International Journal of Mining Science and technology 2021年第2期31卷 321-332页

作者： Zizheng Zhang Min Deng Jianbiao Bai Shuai Yan Xianyang Yu Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal MinesHunan University of Science and TechnologyXiangtan 411201China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China Jiangsu Engineering Laboratory of Mine Earthquake Monitoring and Prevention School of MinesChina University of Mining and TechnologyXuzhou 221116China

In multi-seam mining,the interlayer rock strata between the upper coal seam(UCS)and the lower coal seam(LCS)appear damage and strength weakening after mining the *** stability control of the gob-side entry retaining(GER)under the gob with close distance coal seams(CDCS)is faced with difficulties due to little attention to GER under this *** paper focuses on surrounding rock stability control and technical parameters design for GER under the gob with *** floor rock strata damage characteristics after mining the UCS is first evaluated and the damage factor of the interlayer rock strata below the UCS is also ***,a structural mechanics model of GER surrounding rock is set up to obtain the main design parameters of the side-roadway backfill body(SBB)including the maximum and minimum SBB width calculation *** optimal SBB width and the water-to-cement ratio of high water quick-setting material(HWQM)to construct the SBB are determined as 1.2 m and 1.5:1.0,***,engineering trial tests of GER are successfully carried out at#5210 track transportation roadway of Xingwu *** results can guide GER design under similar mining and geological conditions.

关键词： Gob-side entry retaining Close distance coal seams Damage factor Interlayer rock strata Side-roadway backfill body

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Upcycling biomass waste into Fe single atom catalysts for pollutant control

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Journal of Energy Chemistry 2022年第6期31卷 282-291,I0008页

作者： Xin Li Kang Hu Yizhe Huang Qingqing Gu Yuwen Chen Bing Yang Rongliang Qiu Wenhao Luo Bert M.Weckhuysen Kai Yan Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology School of Environmental Science and EngineeringSun Yat-Sen UniversityGuangzhou 510275GuangdongChina CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510275GuangdongChina Inorganic Chemistry and Catalysis Group Debye Institute for Nanomaterials ScienceUtrecht UniversityUtrecht 3584 CGNetherlands

Contaminants of heavy metals and antibiotics, which are frequently detected in water, soil and food chains with increasing prevalence in our current society, can cause potential harm to human health and disrupt human ecosystem irreversibly. Herein, we have successfully utilized biomass waste ferns contaminated by iron mines, to fabricate a first-of-its-kind high-performance class of Fe single-atom catalysts(FeSAC) by a facile pyrolysis. The optimal FeSAC-800 shows an excellent efficiency in the fastphotocatalytic degradation of six types of quinolone antibiotics(e.g., norfloxacin, levofloxacin, ciprofloxacin, enrofloxacin, lomefloxacin, flumequine) in 1 h under the simulated natural light irradiation. Based on advanced characterization, a well-defined structure of FeN_(4), confined in the porous carbon is elaborated for the FeSAC-800. Mechanism of the photodegradation is via a Fenton-like oxidation process whereas the reactive oxygen species play a key role. These findings open a new avenue for efficient, sustainable utilization of biomass waste in pollutant control.

关键词： Single-atom catalysts Photocatalysis Biomass waste Quinolone antibiotics Sustainability

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Surface-enhanced Raman scattering for mixing state characterization of individual fine particles during a haze episode in Beijing,China

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Journal of Environmental Sciences 2021年第6期33卷 216-224页

作者： Hui Chen Fengkui Duan Jingjing Du Ranhao Yin Lidan Zhu Jinlu Dong Kebin He Zhenli Sun Suhua Wang MOE Key Laboratory of Resources and Environmental System Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control School of Environmental Science and EngineeringGuangdong University of Petrochemical TechnologyMaoming 525000China

The nondestructive characterization of the mixing state of individual fine particles using the traditional single particle analysis technique remains a *** this study,fine particles were collected during haze events under different pollution levels from September 5 to 112017 in Beijing,China.A nondestructive surface-enhanced Raman scattering(SERS)technique was employed to investigate the morphology,chemical composition,and mixing state of the multiple components in the individual fine *** image and SERS spectral analysis results show that soot existing in the form of opaque material was predominant during clear periods(PM_(2.5)≤75μg/m^(3)).During polluted periods(PM_(2.5)>75μg/m^(3)),opaque particles mixed with transparent particles(nitrates and sulfates)were generally *** classical least squares analysis further identified the relative abundances of the three major components of the single particles:soot(69.18%),nitrates(28.71%),and sulfates(2.11%).A negative correlation was observed between the abundance of soot and the mass concentration of PM_(2.5).Furthermore,mapping analysis revealed that on hazy days,PM_(2.5)existed as a core-shell structure with soot surrounded by nitrates and *** mixing state analysis method for individual PM_(2.5)particles provides information regarding chemical composition and haze formation mechanisms,and has the potential to facilitate the formulation of haze prevention and control policies.

关键词： PM_(2.5) Surface-enhanced Raman scattering Individual fine particle Nitrate Sulfate Soot

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Submarine groundwater discharge and associated nutrient fluxes in the Greater Bay Area, China revealed by radium and stable isotopes

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Geoscience Frontiers 2021年第5期12卷 397-410页

作者： Qianqian Wang Xuejing Wang Kai Xiao Yan Zhang Manhua Luo Chunmiao Zheng Hailong Li State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhenGuangdong 518055China School of Environmental Science and Engineering Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution ControlSouthern University of Science and TechnologyShenzhenGuangdong 518055China MOE Key Laboratory of Groundwater Circulation&Environment Evolution and School of Water Resources and Environment China University of Geosciences(Beijing)Beijing 100083China

The estuary-bay system is a common and complex coastal ***,quantifying submarine groundwater discharge(SGD)and associated nutrient fluxes in the complex coastal environment is challenging due to more dynamic and complicated riverine discharge,ocean processes and human *** this study,SGD and SFGD(submarine fresh groundwater discharge)fluxes were evaluated by combining stable and radium isotopes in the Guangdong-Hong Kong-Macao Greater Bay Area(GBA),a typical estuary-bay *** first built a spatially distributed radium mass balance model to quantify SGD fluxes in coastal areas of GBA integrating the Pearl River Estuary(PRE),bays and *** then used the stable water isotope(d2 H and d18O)end-member mixing model to distinguish submarine fresh groundwater discharge(SFGD)from *** on the 228Ra mass balance,the estimated SGD fluxes in the PRE,adjacent bay,and shelf areas were(6.14±2.74)×10^(8) m^(3) d^(-1),(3.00±1.11)×10^(7) m^(3) d^(-1),and(5.00±5.64)×10^(8) m^(3) d^(-1),*** showed that the largest area-averaged SGD was in the PRE,followed by that in the adjacent shelf and the *** differences may be mainly influenced by ocean forces,urbanization and benthic topographies controlling the variability of groundwater ***,the three end-member mixing model of ^(228)Ra and salinity was developed to confirm the validity of the estimated SGD using the Ra mass balance *** the two models,groundwater endmember and water apparent age estimation were the main sources of uncertainty in *** estimated SFGD flux was(1.39±0.76)108 m^(3) d^(-1),which accounted for approximately 12%of the total *** stable and radium isotopes was a useful method to estimate groundwater ***,the estimated SGD associated dissolved inorganic nitrogen(DIN)flux was one order of magnitude higher than other DIN *** was considered to be a significant contributor to the DIN loading to the *** findings

关键词： Radium isotopes Stable isotopes Submarine fresh groundwater discharge Nutrients Coastal aquifers Pearl River estuary

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Biochar soil addition alters ant functional traits as exemplified with three species

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Biochar 2024年第1期6卷 946-957页

作者： Sha Liu Jinsuo Li Zhaomin Zhou Christian E.W.Steinberg Bo Pan Shu Tao Baoshan Xing Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control Faculty of Environmental Science&EngineeringKunming University of Science&TechnologyKunming 650500China. Southwest United Graduate School KunmingPeople’s Republic of China. Key Laboratory of Southwest China Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchong 637002China. Faculty of Life Sciences Freshwater and Stress Ecology GroupHumboldt Universität Zu Berlin12437 BerlinGermany. College of Urban and Environmental Sciences Peking UniversityBeijing 100871China. Stockbridge School of Agriculture University of MassachusettsAmherstMA 01003USA.

The response of soil microorganisms and plants in soil ecosystems to biochar is well ***,biochars’impact on large soil animal,such as ants,is inadequately understood,with only limited studies focusing on the abundance and mortality rates of some specific ant *** this study,soil physicochemical properties,and ant community diversity and functional characteristics were compared between experimental plots with and without biochar *** significant differences in soil(soil physicochemical properties)or ants(ant community richness,species abundance,and morphological characteristics)were observed between the two plots before biochar ***,the biochar-treated plot soil surface temperatures,pH,and soil water content were significantly higher after 48 *** application promoted Cardiocondyla nuda(by 426%)and Formica japonica abundance(by 93%),but decreased Solenopsis invicta invasive ant species richness(by 54%),consistent with the fact that changes in soil properties were more beneficial to the former two *** addition,in biochar-treated plots,*** and *** generally showed larger body size(18%and 6.7%),larger eyes(2.7%and 4.0%),and longer femurs(6.3%and 7.9%),which enabled them to respond better to potential barriers,such as *** results highlighted that,besides species abundance and community structure,certain ant functional morphological indicators were also informative in evaluating biochar ecological implications.

关键词： Biochar Ant Community structure Functional traits Rice straw Species abundance

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Corrigendum to "Degradation of aqueous methylparaben by non-thermal plasma combined with ZnFe2O4-rGO nanocomposites: Performance, multi-catalytic mechanism, influencing factors and degradation pathways" [Chemosphere 271 (2021) 129575]

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Chemosphere 2025年 372卷 143615页

作者： Feng, Jingwei Nian, Peng Peng, Lu Zhang, Aiyong Sun, Yabing Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources School of Civil and Hydraulic Engineering Hefei University of Technology Hefei230009 China State Key Laboratory of Pollution Control & Resources Reuse School of the Environment Nanjing University Nanjing210046 China Anhui Province Key Laboratory of Industrial Wastewater and Environmental Treatment Hefei230024 China East China Engineering Science and Technology Co. Ltd. Hefei230024 China

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Alterations of endotoxin distribution across different biofluids and relevant inflammatory responses by supplementing L-theanine in dairy cows during heat stress

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Animal Nutrition 2021年第4期7卷 1253-1257页

作者： Zuo Wang Lingmei Zhang Zhicai Li Yuannian Yu Lingyuan Yang Peihua Zhang Weijun Shen Fachun Wan Jianhua He Wenjun Xiao Dasheng Yang Zhiliang Tan Shaoxun Tang College of Animal Science and Technology Hunan Agricultural UniversityChangshaHunan410128China Key Laboratory of Agro-Ecological Processes in Subtropical Region National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionHunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic ProcessInstitute of Subtropical AgricultureChinese Academy of SciencesChangshaHunan410125China College of Horticulture Hunan Agricultural UniversityChangshaHunan410128China Deren Dairy Co.Ltd. ChangdeHunan415921China

The present trial was performed to reveal the regulatory effects of L-theanine on the levels of lipopolysaccharide(LPS)endotoxin within different biofluids,as well as relevant inflammatory responses of dairy cattle under heat stress *** lactating Chinese Holstein dairy cattle(189±47 d in milk,and 2±1 parities)were allocated in a completely randomized design to each of 3 dietary treatments:the control(CON,0 g/d per cow L-theanine),the low L-theanine dosage treatment(LL,16 g/d per cow L-theanine),and the high L-theanine dosage treatment(HL,32 g/d per cow L-theanine).This trial consisted of 38 d(7 d for adaption and 31 d for data and sample collection),and sample collection for rumen liquid,blood plasma or serum,and milk were conducted on the d 27 and 38,*** cattle were constantly exposed to environmental heat stress during this experiment according to the recorded temperature-humidity index(THI).In the LL treatment,LPS concentration in rumen liquid was higher(P<0.05),whilst LPS densities in plasma and milk were lower(P<0.05)than those of the *** L-theanine at 2 dosages both significantly lowered(P<0.05)the level of interleukin(IL)-1βin the *** of the present study suggested that L-theanine could be a promising additive in reducing the detrimental effects of heat stress on dairy cows,and L-theanine supplementation at 16 g/d per cow is preferred because it reduced the LPS translocation into the peripheral blood and LPS accumulation in the milk,as well as mitigated LPS-induced inflammatory reactions in dairy cows during heat *** studies are necessitated to investigate the underlying mechanisms of L-theanine in LPS alteration and inflammation alleviation.

关键词： Heat stress Endotoxin L-theanine Inflammation

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Legacy and currently-used pesticides in sedimentary archives: Anthropogenic footprint in the pearl river estuary

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Science of the Total Environment 2025年 976卷 179300页

作者： Tian, Lele Zhao, Shizhen Zhong, Guangcai Li, Jun Hu, Jianfang Zhang, Gan State Key Laboratory of Advanced Environmental Technology Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control and Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Guangzhou510640 China University of Chinese Academy of Sciences Beijing100049 China

Pesticides are fundamental to modern agriculture but pose significant environmental risks due to their persistence, bioaccumulation potential, and toxicity. This study systematically investigates the pollution characteristics and historical trends of 28 legacy organochlorine pesticides (OCPs) and 17 currently-used pesticides (CUPs) in a sediment core from the Pearl River Estuary (PRE), assessing their potential as Anthropocene markers. The concentrations of Σ28OCPs ranged from 0.788 to 9.12 ng/g, dominated by dichlorodiphenyltrichloroethanes (DDTs, 49 ± 21 %) and chlordane (9 ± 6 %), while the Σ17CUP concentrations were an order of magnitude higher, ranging from 4.85 to 98.4 ng/g, with pyrethroids contributing 50–99 %. This shift in pesticide composition reflects the historical transition from OCPs to CUPs in China's pesticide usage. Temporal trends (1919–2019) showed that the concentrations of DDTs, chlordane, pyrethroids, and dicofol closely mirrored their usage history in China, demonstrating that sediment cores effectively record pesticide application history. Redundancy analysis identified total organic carbon, temperature, and precipitation as key environmental factors influencing the concentrations of DDTs, chlordane, pyrethroids, and dicofol. Correlation analysis further demonstrated that the concentrations of DDTs and phenothrin were linked to population, GDP, and agricultural activities, whereas dicofol, parathion-methyl, and bromophos-ethyl were primarily driven by agricultural activities. Moreover, DDT exhibited temporally abrupt trends, broad geographic signals, and permanent environmental records, suggesting its potential as a robust Anthropocene marker. This study provides critical insights into pesticide pollution dynamics and highlights the value of legacy and emerging pollutants in tracking human impacts on Earth's environmental systems. © 2025 Elsevier B.V.

关键词： Anthropogenic

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