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Synergistically enhanced ORR and HER performance on co-N-c coupled in-situ generated Ptco intermetallic

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Journal of Energy chemistry 2025年第1期100卷 721-729页

作者： Guanyu Luo Min Song Lulu An Xiao Huang Qian Zhang chenhao Zhang Tao Shen Shuang wang deli wang Key Laboratory of Material chemistry for Energy conversion and Storage (Huazhong University of Science and Technology) Ministry of Ed.c.tion School of Chemistry and Chemical Engineering Huazhong University of Science and Technology

Integrating multi-scale sites in a composite catalyst is vital to realize efficient ***,a synergistic composite catalyst consisting of co atomic sites and in-situ generated Ptco intermetallic compounds （IMcs）(o-Ptco@coNc) is proposed through co pre-anchoring and subsequent impregnation-red.c.ion *** loading of co atoms provides a chance for in-situ generating Ptco ordered intermetallic *** remaining co single atoms and Ptco IMcs construct synergistic electrocatalytic *** from the ordered structure,synergistic effect of Pt co IMcs and.c. single atoms,o-Ptco@coNc exhibits excellent electrocatalytic performance for oxygen red.c.ion reaction （ORR） and hydrogen evolution reaction （HER） with mass activity of 1.21 A mgPt-1（at 0.9 V） and5.70 A mgPt-1（at an overpotential of 100 mV）,***,o-Ptco@coNc delivers negligible loss of half-wave potential and overpotential during long-term stability test in acid solutions,with 13 mV d.c.y after 50,000 potential cycles for ORR and a 2.7 mV d.c.y after 20,000 potential cycles for *** integration strategy of single-atomic sites coupled IMcs paves the way for enhancing the activity and durability of Pt-based electrocatalysts.

关键词： Electrolytic red.c.ion

c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 pathway as a therapeutic target and regulatory mechanism for spinal cord injury

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Neural Regeneration Research 2025年第8期20卷 2231-2244页

作者： Xiangzi wang Xiaofei Niu Yingkai wang Yang Liu cheng Yang Xuyi chen Zhongquan Qi School of Med.c.ne Guangxi UniversityNanningGuangxi Zhuang Autonomous RegionChina Graduate School of Tianjin University of Traditional chinese Med.c.ne TianjinChina characteristic Med.c.l center of People’s Armed Police Forces TianjinChina Fujian Maternity and.c.ild Health Hospital FuzhouFujian ProvinceChina

Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory *** expression of the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 axis exhibits significant differences before and after *** studies have revealed that the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 axis is closely associated with secondary inflammatory responses and the recruitment of immune cells following spinal cord injury,suggesting that this axis is a novel target and regulatory control point for *** review comprehensively examines the therapeutic strategies targeting the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 axis,along with the regenerative and repair mechanisms linking the axis to spinal cord ***,we summarize the upstream and downstream inflammatory signaling pathways associated with spinal cord injury and the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 *** review primarily elaborates on therapeutic strategies that target the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 axis and the latest progress of research on antagonistic drugs,along with the approaches used to exploit new therapeutic targets within the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 axis and the development of targeted ***,there are presently no clinical studies relating to spinal cord injury that are focusing on the c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 *** review aims to provide new ideas and therapeutic strategies for the future treatment of spinal cord injury.

关键词： apoptosis c-c motif chemokine ligand 2/c-c motif chemokine receptor 2 pathway c-c motif chemokine receptor 2 antagonists chemokine ligand 2 chemokine receptor 2 inflammation macrophage microglia spinal cord injury therapeutic method

Rational modulation of fluorophosphate cathode by anionic groups to red.c. the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy chemistry 2025年第1期100卷 509-521页

作者： Xinyuan wang Fan Zhang Xingyu Zhou Qian wang changyu Liu Yangyang Liu Hui wang Xiaojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Ed.c.tion College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （dFT） and finite element simulations show that incorporating SO42-into VP d.c.eases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 c,75.5 mAh g-1) and.c.cling stability (111.0 mAh g-1capacity after 1000 cycles at 10 c current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPc full cell demonstrated stable cycling over 200 cycles at a high 5 c current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate cathode

Synergistic promotion strategy of “dual-site” and “dual-path” to enhance the c–c coupling between cO2 and HcHO driven by photoelectrocatalysis

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Journal of Energy chemistry 2025年第1期100卷 39-49页

作者： Hongqiang Yang Jianfeng Zheng Guoyu wang Yifei Gao Yatao Yang Jia Li Xiaojin Han Yan cui Zhanggen Huang National Key Laboratory of High Efficiency and Low carbon Utilization of coal Institute of Coal Chemistry Chinese Academy of Science University of chinese Academy of Science Shenyang University of chemical Technology

Photoelectrocatalytic coupling cO2and volatile organic compounds （VOcs） is a promising green strategy for the synergistic conversion of the two carbon-containing resources to *** catalytic efficiency is always at the mercy of chemical inertness of cO2and the competitive hydrogen evolution of ***,a modified g-c3N4/ZnAl-LdH Z-scheme heterojunction catalyst with dual reaction site was rationally designed and precisely *** Faraday efficiency of ethanol reached 68.67%with a corresponding formation rate of 227.3μmol *** revealed by in-situ characterizations and density functional theory calculations,cO2and HcHO were absorbed at Zn site and N site,***,*cO generated from cO2and HcHO was converted to*cH3O and.c.O on the dual-active-site *** detailed reaction mechanism experiments ind.c.ted that c–c coupling only occurred between*cO and.c.3O in electrocatalysis *** from the“*cO+*cH3O”path,another“*cO+*cHO”coupling path was also detected in photoelectrocatalytic *** selectivity of ethanol was significantly enhanced due to the synthesis of dual-site catalyst and the dual-path coupling path between cO2and HcHO simultaneously driven by light and electricity.

关键词： Photoelectrocatalysis Z-scheme c–c coupling Ethanol

Use and application of cFc-11,cFc-12,cFc-113 and SF6 as environmental tracers of groundwater residence time:A review

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Geoscience Frontiers 2019年第5期10卷 1643-1652页

作者： L.A. chambers d.c. Gooddy A.M. Binley department of civil and Environmental Engineering University of StrathclydeGlasgowG1 1XJUK Lancaster Environment centre Lancaster UniversityLancasterLA1 4YQUK British Geological Survey Maclean BuildingWallingfordOX10 8BBUK

Groundwater residence time is a fundamental property of groundwater to understand important hydrogeological issues,such as deriving sustainable abstraction volumes,or,the evolution of groundwater *** anthropogenic trace gases chlorofluorocarbons (cFc-11,cFc-12 and.c.c-113) and sulphur hexafluoride (SF6) are ideal in this regard because they have been released globally at known rates and become dissolved in groundwater following Henry’s Law,integrating over large spatial (global) and temporal (d.c.des) *** cFcs and SF6 are able to date groundwater up to w100 years old with the caveat of certain simplifying ***,the inversion of environmental tracer concentrations (cFcs and SF6) to derive groundwater age rests on the accurate determination of groundwater recharge parameters,namely temperature,elevation,salinity and excess air,in addition to resolving the potential for contamination,degradation and unsaturated zone *** review explores the fundamentals of cFc-11,cFc-12,cFc-113 and SF6 as environmental tracers of groundwater age and recommends complementary techniques *** this relatively simple and inexpensive technique has been used to determine initial concentrations at the recharge zone,setting the groundwater dating ‘clock’ to zero,this review then explores the meaning of groundwater ‘age’ in relation to measured environmental tracer *** is shown that the cFcs and SF6 may be applied to a wide-range of hydrogeological problems and suggests that environmental tracers are particularly powerful tools when integrated with numerical flow and transport models.

关键词： Hydrogeology Environmental tracers Groundwater dating

Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram d.dongale Atul c.Khot chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide cond.c.ors due to their high electrical cond.c.ivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent cond.c.ing metal oxide mesh electrode using selfcracking-assisted *** this method,we prod.c.d an electrode with ultra-transparency(97.39%),high cond.c.ance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

Mineralogy and geochemistry of Nb-,Ta-,Sn-,U-,Th-,and Zr-bearing granitic rocks from Abu Rusheid shear zones,South Eastern desert,Egypt

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chinese Journal Of Geochemistry 2011年第2期30卷 226-247页

作者： Ali M.A. Lentz d.R. Hall d.c. Nuclear Materials Authority P.O.530.El MaadiCairoEgypt department of Geology New Brunswick UniversityUNBCanada Microscopy and Microanalysis Facility New Brunswick UniversityUNBCanada

Granite-hosted,Nb-,Ta-,Sn-,U-,Th-,and Zr(Hf)-bearing mineralization from the Abu Rusheid shear zones occurs about 97 km southwest of the town of Marsa Alam,South Eastern desert,*** SSE-trending brittle-d.c.ile Abu Rusheid shear zones crosscut the peralkalic granitic gneisses and.c.taclastic to mylonitic rocks(mylonite,protomlyonite,and ultramylonite).The northern shear zone varies in width from 1 to 3 m with a strike length of >500 m,and the southern shear zone is 0.5 to 8 m wide and >1 km *** shear zones locally host less altered lamprophyre and locally sheared granitic aplite-pegmatite *** rare-metal minerals,identified from the peralkalic granitic gneisses and.c.taclastic to mylonitic rocks are associated with muscovite,chlorite,quartz,fluorite,pyrite,magnetite,and rare biotite that are restricted to the Abu Rusheid shear zones;these are columbite-tantalite and pyrochlore(***) in the northern shear zone and ferrocolumbite in the southern shear *** occurs as inclusions in the columbite-tantalite minerals.U-and Th-minerals(uraninite,thorite,uranothorite,ishikawaite,and.c.eralite) and Hf-rich zircon ***(?) zircon contains numerous inclusions of rutile,fluorite,U-Th and REE minerals,such as uranothorite,cheralite,monazite,and *** variations in Ta/(Ta+Nb) and Mn/(Mn+Fe) in columbite range from 0.07-0.42 and 0.04-0.33,respectively,and Hf contents in zircon from 1.92-6.46 of the two mineralized shear zones reflect the extreme degree of magmatic *** samples of peralkalic granitic gneisses and.c.taclastic to mylonitic rocks from the southern shear zone have very low TiO2(0.02 wt%-0.04 wt%),Sr [(15-20)×10-6],and Ba [(47-78)×10-6],with high Fe2O3T(0.94 wt%-1.99 wt%),caO(0.14 wt%-1.16 wt%),alkalis(9.2 wt%-10.1 wt%),Rb [(369-805)×10-6],Zr [(1033-2261)×10-6],Nb [(371-913)×10-6],U [(51-108)×10-6],Th [(36-110)×10-6],Ta [(38-108)×10-6],Pb [(39-364)×10-6],Zn [(21-424)×10-6],Y [(8-304)×10-6],Hf

关键词： uranium thorium zircon columbite-tantalite fluorite monazite xenotime age dating granitic gneisses South Eastern desert Egypt

controlled.c.tionic ring-opening polymerization of L-lactide by organic ion pair: novel approach to isotactic-rich and.c.ystalline polylactide

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Science china chemistry 2025年第1期 394-402页

作者： Zhiqiang ding Mingqian wang Zijing Zhou Bin wang Yuesheng Li Tianjin Key Laboratory of composite & Functional Materials School of Materials Science and Engineering Tianjin University

Living/controlled.c.tionic ring-opening polymerization （ROP） of L-lactide is a promising approach to isotactic-rich and.c.ystalline poly（L-lactide）.In contrast with the unsubstituted lactones,L-LA can not be polymerized by organic Lewis acids or carbenium ions,and the state of the art in this field is the cationic ROP of L-LA catalyzed by Br?nsted acid/alcohol system via activated monomer ***,we reported the first example of controlled.c.tionic ROP of L-LA by using Meerweintype ion pair[Me3O]+[B（c6F5）4]-as the catalyst.[Me3O]+[B（c6F5）4]-promoted rapid L-LA cationic polymerization in the absence of alcohol,prod.c.ng isotactic-rich and.c.ystalline PLLA without transesterification and epimerization side *** activated.c.ain end mechanism,involving twice SN2 substitution and.c.nfiguration-inversion （S→R→S） with the assistance of released Me2O,was proposed and further verified by density functional theory and.c.ntrol *** work expands the catalytic toolbox of isotactic-rich and.c.ystalline polylactide *** represents a unique example of cationic-controlled polymerization of L-LA catalyzed by an organic ion pair.

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Repetitive traumatic brain injury–ind.c.d.c.mplement c1–related inflammation impairs long-term hippocampal neurogenesis

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Neural Regeneration Research 2025年第3期20卷 821-835页

作者： Jing wang Bing Zhang Lanfang Li Xiaomei Tang Jinyu Zeng Yige Song chao Xu Kai Zhao Guoqiang Liu Youming Lu Xinyan Li Kai Shu department of Neurosurgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina department of Neurosurgery Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalThird Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina department of Pathophysiology School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Institute for Brain Research Wuhan Center of Brain ScienceHuazhong University of Science and TechnologyWuhanHubei ProvinceChina department of Graduate Student Chongqing Medical UniversityChongqingChina department of Basic Med.c.ne School of Medical ScienceHubei University for NationalitiesEnshiHubei ProvinceChina department of Anatomy School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

Repetitive traumatic brain injury impacts adult neurogenesis in the hippocampal dentate gyrus,leading to long-term cognitive ***,the mechanism underlying this neurogenesis impairment remains *** this study,we established a male mouse model of repetitive traumatic brain injury and performed long-term evaluation of neurogenesis of the hippocampal dentate gyrus after repetitive traumatic brain *** results showed that repetitive traumatic brain injury inhibited neural stem cell proliferation and development,delayed neuronal maturation,and red.c.d the complexity of neuronal dendrites and *** with repetitive traumatic brain injuryalso showed deficits in spatial memory ***,following repetitive traumatic brain injury,neuroinflammation was enhanced in the neurogenesis microenvironment where c1q levels were increased.c.q binding protein levels were d.c.eased,and.c.nonical Wnt/β-catenin signaling was *** inhibitor of c1 reversed the long-term impairment of neurogenesis ind.c.d by repetitive traumatic brain injury and improved neurological *** findings suggest that repetitive traumatic brain injury–ind.c.d.c.-related inflammation impairs long-term neurogenesis in the dentate gyrus and.c.ntributes to spatial memory retrieval dysfunction.

关键词： complement c1 dendrite dentate gyrus hippocampus neural stem cell neurogenesis neuroinflammation neurological function neuron traumatic brain injury