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Rational Design of Cost-Effective Metal-Doped ZrO_(2)for Oxygen Evolution Reaction

Nano-Micro Letters 2024年第9期16卷 385-396页

作者： Yuefeng Zhang Tianyi Wang liang mei Ruijie yang Weiwei Guo Hao li Zhiyuan Zeng Department of Materials Science and Engineering and State Key Laboratory of Marine PollutionCity University of Hong Kong83 Tat Chee AvenueKowloon 999077Hong KongPeople’s Republic of China Advanced Institute for Materials Research(WPI‑AIMR) Tohoku UniversitySendai 980‑8577Japan Shenzhen Research Institute City University of Hong KongShenzhen 518057People’s Republic of China Shanxi Supercomputing Center Lvliang 033000ShanxiPeople’s Republic of China

The design of cost-effective electrocatalysts is an open challenging for oxygen evolution reaction(OER)due to the“stable-oractive”*** dioxide(ZrO_(2)),a versatile and low-cost material that can be stable under OER operating conditions,exhibits inherently poor OER activity from experimental ***,we doped a series of metal elements to regulate the ZrO_(2)catalytic activity in OER via spin-polarized density functional theory calculations with van der Waals *** modeling as a function of the OER activity descriptor(G_(O*)-G_(HO*))displays that 16 metal dopants enable to enhance OER activities over a thermodynamically stable ZrO_(2)surface,among which Fe and Rh(in the form of single-atom dopant)reach the volcano peak(*** optimal activity of OER under the potential of interest),indicating excellent OER *** energy diagram calculations,density of states,and ab initio molecular dynamics simulations further showed that Fe and Rh are the effective dopants for ZrO_(2),leading to low OER overpotential,high conductivity,and good *** cost-effectiveness,single-atom Fe doped ZrO_(2)emerged as the most promising catalyst for *** finding offers a valuable perspective and reference for experimental researchers to design cost-effective catalysts for the industrial-scale OER production.

关键词： Oxygen evolution reaction Metal oxide Electrocatalysis Surface Pourbaix analysis Doping

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Mechanical Properties and Electronic Structures of M(M=Ti,V,Cr,Mn and Fe)Dopedβ-Si_(3)N_(4) from First-Principle

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Journal of Wuhan University of Technology(Materials Science) 2024年第3期39卷 639-644页

作者：龙敏黄福祥 XU liangyu li Xuemei yang Zhou LENG Yue mei Shini School of Materials Science and Engineering Chongqing University of TechnologyChongqing 400054China

The structures,mechanical properties and electronic structures of M metals(M=Ti,V,Cr,Mn and Fe)dopedβ-Si_(3)N_(4) were investigated by First-principles calculations within *** calculated lattice parameters ofβ-Si_(3)N_(4) were consistent with previous *** cohesive energy and formation enthalpy show that initialβ-Si_(3)N_(4) has the highest structural *** calculated elastic constant and the Voigt-Reuss-Hill approximation indicate that elastic moduli ofβ-Si_(3)N_(4) are slightly reduced by M *** on Poisson’s and Pugh’s ratio,β-Si_(3)N_(4) is a ductile material and the toughness ofβ-Si_(3)N_(4) increases with M doping,and Fe doping exhibited the best *** results of density of states,charge distributions and overlapping populations indicate thatβ-Si_(3)N_(4) has the strong covalent and ionic bond strength between N and Si.

关键词： first-principles β-Si_(3)N_(4) mechanical properties electronic structure

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The 96-week clinical outcomes after cessation of nucleos(t)ide analog treatment in chronic hepatitis B patients

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Gastroenterology Report 2021年第4期9卷 313-322,I0002页

作者： Wen-Xiong Xu yang-mei li Jian-Guo li Yong-Yu mei You-Ming Chen Xue-Jun li Chao-Shuang lin Hong Deng Zhi-Xin Zhao Dong-Ying Xie Zhi-liang Gao liang Peng Department of Infectious Diseases The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongP.R.China Guangdong Key Laboratory of liver Disease Research The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongP.R.China Department of Prevention and Health Care The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongP.R.China

Background:Chronic hepatitis B(CHB)patients have a high virological relapse rate after cessation of nucleos(t)ide analog(NA)treatment,but the clinical outcome remains *** study aimed to investigate the 96-week clinical outcomes and the risk factors for relapse in CHB after cessation of ***:This study was a prospective trial;74 eligible patients were *** patients underwent NA cessation and follow-up according to the 2012 Asian Pacific Association for the Study of the liver ***,biochemical(aspartate aminotransferase[AST],alanine aminotransferase[ALT],total bilirubin,urea nitrogen,creatinine),virological data(hepatitis B surface antigen[HBsAg],hepatitis B e antigen[HBeAg],hepatitis B e antibody[HBeAb],hepatitis B virus[HBV]DNA levels),and color Doppler ultrasound examination results were recorded and ***:After NA cessation,19 cases were HBsAg-negative without relapse during the 96-week *** the 55 cases of HBsAg-positive after cessation,four types of clinical outcomes were *** patients had no relapse during the 96-week follow-up(type A,21.8%),7 patients underwent virological relapses but spontaneously had a non-virological relapse(type B,12.7%),10 patients maintained virological relapse(type C,18.2%),and 26 patients turned to clinical relapse,received NA retreatment,and achieved ALT normalization and negative conversion of HBV DNA within 12 months(type D,47.3%).The 2-year overall cumulative rates of virological and clinical relapses were 58.1%and 24.3%,*** factors associated with virological relapse were duration of negative HBV DNA,EOT(end of treatment)HBsAg,and original status of *** EOT HBsAg was also an independent factor for clinical ***:There are four types of clinical outcomes in patients with CHB after cessation of NA *** research is needed to explore the mechanism of different clinical *** EOT HBsAg level is an independent

关键词： chronic hepatitis B nucleos(t)ide analogs cessation relapse hepatitis B virus

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Femtosecond laser fabrication of 3D vertically aligned micro-pore network on thick-film li_(4)Ti_(5)O_(12)electrode for high-performance lithium storage

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Journal of Energy Chemistry 2024年第8期95卷 250-262,I0006页

作者： Quansheng li Xiaofei Sun Xuesong mei lingzhi Wang Minxing yang Jianlei Cui Wenjun Wang State Key Laboratory for Manufacturing System Engineering Xi'an Jiaotong UniversityXi'an 710049ShaanxiChina Shaanxi Key Laboratory of Intelligent Robots Xi'an Jiaotong UniversityXi'an 710049ShaanxiChina School of Mechanical Engineering Xi'an Jiaotong UniversityXi'an 710049ShaanxiChina

The development of energy storage devices with high energy density relies heavily on thick film electrodes,but it is challenging due to the limited ion transport kinetics inherent in thick ***,we report on the preparation of a directional vertical array of micro-porous transport networks on LTO electrodes using a femtosecond laser processing strategy,enabling directional ion rapid transport and achieving good electrochemical performance in thick film *** three-dimensional(3D)vertically aligned micro-pore networks are innovatively designed,and the structure,kinetics characteristics,and electrochemical performance of the prepared ion transport channels are analyzed and discussed by multiple characterization and testing ***,the rational mechanisms of electrode performance improvement are studied experimentally and simulated from two aspects of structural mechanics and transmission *** ion diffusion coefficient,rate performance at 60 C,and electrode interface area of the laser-optimized 60-15%micro-porous transport network electrodes increase by 25.2 times,2.2 times,and 2.15 times,respectively than those of untreated ***,the preparation of 3D micro-porous transport networks by femtosecond laser on ultra-thick electrodes is a feasible way to develop high-energy *** addition,the unique micro-porous transport network structure can be widely extended to design and explore other high-performance energy materials.

关键词： Femtosecond laser Micro-porous transport networks Laser processing Thick film electrodes Ion transport kinetics

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Expression in Arabidopsis of a Strawberry linalool Synthase Gene Under the Control of the Inducible Potato PI2 Promoter

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Agricultural Sciences in China 2008年第5期7卷 521-534页

作者： yang li-mei Per Mercke Joop J A van Loon FANG Zhi-yuan Marcel Dicke Maarten A Jongsma Institute of Vegetables ＆ Flowers Chinese Academy of Agricultural Sciences Beijing 100081 P.R. China Laboratory of Entomology Wageningen University P.O. Box 8031 6700 EH Wageningen The Netherlands Plant Research International P.O. Box 16 6700 AA Wageningen The Netherlands

To investigate the role of inducible linalool in Arabidopsis-insect interactions, the FANES 1 linalool synthase （liS） cDNA from strawberry with plastid targeting and a synthetic intron （liS＇） was placed under the control of the wound inducible proteinase inhibitor 2 （PI2） promoter from potato. The construct pBin-PPi2-liS＇ was transformed to Arabidopsis thaliana ecotype Columbia 0. Kanamycin resistant TO seedlings were confirmed for the presence and transcription of the liS＇ gene by PCR analysis on genomic DNA and by RT-PCR analysis on RNA. Genomic and RT-PCR products were sequenced to confirm correct splicing of the synthetic intron. The expression of active linalool synthase by the PPI2-liS＇ gene construct in the transgenic lines was assessed by measuring linalool emission using solid phase micro-extraction （SPME） GC-MS measurements after induction with methyl jasmonate. Among 30 tested independent T2 transgenic lines, 10 exhibited linalool production. linalool expression could be induced by methyl jasmonate treatment, but not by diamondback moth larvae.

关键词： Aradidopsis linalool synthase potato proteins inhibitor inducible promoter methyl jasmonate Plutella xylostella induction expression

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The action mechanism by which C1q/tumor necrosis factor-related protein-6 alleviates cerebral ischemia/reperfusion injury in diabetic mice

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Neural Regeneration Research 2024年第9期19卷 2019-2026页

作者： Bo Zhao mei li Bingyu li Yanan li Qianni Shen Jiabao Hou yang Wu lijuan Gu Wenwei Gao Department of Anesthesiology Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina Central Laboratory Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina Department of Critical Care Medicine Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

Studies have shown that C1q/tumor necrosis factor-related protein-6 (CTRP6) can alleviate renal ischemia/reperfusion injury in mice. However, its role in the brain remains poorly understood. To investigate the role of CTRP6 in cerebral ischemia/reperfusion injury associated with diabetes mellitus, a diabetes mellitus mouse model of cerebral ischemia/reperfusion injury was established by occlusion of the middle cerebral artery. To overexpress CTRP6 in the brain, an adeno-associated virus carrying CTRP6 was injected into the lateral ventricle. The result was that oxygen injury and inflammation in brain tissue were clearly attenuated, and the number of neurons was greatly reduced. In vitro experiments showed that CTRP6 knockout exacerbated oxidative damage, inflammatory reaction, and apoptosis in cerebral cortical neurons in high glucose hypoxia-simulated diabetic cerebral ischemia/reperfusion injury. CTRP6 overexpression enhanced the sirtuin-1 signaling pathway in diabetic brains after ischemia/reperfusion injury. To investigate the mechanism underlying these effects, we examined mice with depletion of brain tissue-specific sirtuin-1. CTRP6-like protection was achieved by activating the sirtuin-1 signaling pathway. Taken together, these results indicate that CTRP6 likely attenuates cerebral ischemia/reperfusion injury through activation of the sirtuin-1 signaling pathway.

关键词： brain C1q/tumor necrosis factor-related protein-6 cerebral apoptosis diabetes inflammation ischemia/reperfusion injury neuron neuroprotection oxidative damage Sirt1

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Aqueous-phase formation of N-containing secondary organic compounds affected by the ionic strength

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Journal of Environmental Sciences 2024年第4期138卷 88-101页

作者： Yuqi Gan Xiaohui Lu Shaodong Chen Xinghua Jiang Shanye yang Xiewen Ma mei li Fan yang Yewen Shi Xiaofei Wang Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention Department of Environmental Science and EngineeringFudan UniversityShanghai 200433China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Guangdong Provincial Observation and Research Station for Coastal Atmosphere and Climate of the Great Bay Area Southern University of Science and TechnologyShenzhen 518055China Institute of Mass Spectrometry and Atmospheric Environment Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air PollutionJinan UniversityGuangzhouChina Environmental Monitoring Station of Pudong New District Shanghai 201200China Shanghai Municipal Center for Disease Control&Prevention Shanghai 200336China

The reaction of carbonyl-to-imine/hemiaminal conversion in the atmospheric aqueous phase is a critical pathway to produce the light-absorbing N-containing secondary organic compounds(SOC).The formation mechanism of these compounds has been wildly investigated in bulk solutions with a low ionic ***,the ionic strength in the aqueous phase of the polluted atmosphere may be *** is still unclear whether and to what extent the inorganic ions can affect the SOC *** we prepared the bulk solution with certain ionic strength,in which glyoxal and ammonium were mixed to mimic the aqueous-phase *** characterization by High-resolution Mass Spectrometry was performed to identify the N-containing products,and the light absorption of the mixtures was measured by ultraviolet-visible ***-nine N-containing compounds were identified and divided into four categories(N-heterocyclic chromophores,high-molecular-weight compounds with N-heterocycle,aliphatic imines/hemiaminals,and the unclassified).It was observed that the longer reaction time and higher ionic strength led to the formation of more N-heterocyclic chromophores and the increasing of the lightabsorbance of the *** added inorganic ions were proposed to make the aqueous phase somewhat viscous so that the molecules were prone to undergo consecutive and intramolecular reactions to form the *** general,this study revealed that the enhanced ionic strength and prolonged reaction time had the promotion effect on the lightabsorbing SOC *** implies that the aldehyde-derived aqueous-phase SOC would contribute more light-absorbing particulate matter in the industrial or populated area where inorganic ions are abundant.

关键词： Ionic strength Carbonyl-to-imine/hemiaminal Heterocyclic Brown carbon Mass spectrometry Aqueous-phase reaction

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Three-dimensional electrically conductive–hydrophobic layer for stable Zn metal anodes

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SusMat 2024年第3期4卷 164-174页

作者： yang mei Jiahui Zhou Botao Zhang li li Feng Wu Yongxin Huang Renjie Chen Beijing Key Laboratory of Environmental Science and Engineering School of Material Science&EngineeringBeijing Institute of TechnologyBeijingChina Advanced Technology Research Institute(Jinan) Beijing Institute of TechnologyJinanChina Collaborative Innovation Center of Electric Vehicles Beijing Institute of TechnologyBeijingChina

The interrelated side reactions and dendrites growth severely destabilize the electrode/electrolyte interfaces,resulting in the difficult application of aqueous Zn ion batteries(AZIBs).Hydrophobic protective layer possesses natural inhibition ability for side ***,the conventional protective layer with plane structure is difficult to attain joint regulation of side reaction and Zn ***,a novel three-dimensional(3D)electrically conductive and hydrophobic(3DECH)interface is elaborated to enable stable Zn *** as-prepared 3DECHinterface presents a uniform 3Dmorphologywith hydrophobic property,large specific surface area,abundant zincophilic sites,and excellent ***,the 3DECH interface achieves uniform nucleation and dendrite-free deposition from synergetic benefits:(1)increased nucleation sites and reduced local current density through the special 3D structure and(2)uniform electric potential distribution and rapid Zn^(2+)transport due to the electroconductive alloy chemistry,thus coupling the hydrophobic property to obtain a highly reversible Zn ***,the modified anode achieves a superior coulombic efficiency of 99.88%over 3500 cycles,and the pouch cells using modified anode and liMn_(2)O_(4)(LMO)cathode retain a capacity of 84 mAh g^(−1)after 700 cycles at a reasonable depth discharge of 36%,without dendrite piercing and“dead Zn.”

关键词： electroconductive layer flat deposition hydrophobic layer three-dimensional surface zincmetal anode

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Enzymatically controlled DNA tetrahedron nanoprobes for specific imaging of ATP in tumor

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Chinese Chemical Letters 2024年第8期35卷 221-224页

作者： Xiaohong Wen mei yang lie li Mingmin Huang Wei Cui Suping li Haiyan Chen Chen li Qiuping Guo College of Biology State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringKey Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan ProvinceHunan UniversityChangsha 410082China

Intracellular ATP is an emerging biomarker for cancer early diagnosis because it is a key messenger for regulating the proliferation and migration of cancer ***,the conventional ATP biosensing strat-egy is often limited by the undesired on-target off-tumor ***,we reported a novel strategy to design enzymatically controlled DNA tetrahedron nanoprobes(En-DT)for biosensing and imaging ATP in tumor *** En-DT was designed via rational engineering of structure-switching aptamers with the incorporation of an enzyme-activatable site and further conjugation on the DNA *** En-DT could be catalytically activated by apurinic/apyrimidinic endonuclease 1(APE1)in cancer cells,but they did not respond to ATP in normal cells,thereby enabling cancer-specific ATP biosensing and imaging in vitro and in vivo with improved tumor *** strategy would facilitate the precise detection of a broad range of biomarker in tumors and may promote the development of smart probes for cancer diagnosis.

关键词： Enzyme-controlled APE1 DNA tetrahedron Cancer-specific ATP biosensing

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Effect of MgO-Cr_(2)O_(3) and Mg0-MgAl_(2)0_(4)-based refractories on refractory-steel interface reaction and cleanliness of pipeline steel

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Journal of Iron and Steel Research International 2024年第4期31卷 849-860页

作者： Guang-mei yang Cheng Yuan Chang liu Qiang Wang Guang-qiang li Yong-shun Zou Ao Huang The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The interaction of MgO-MgAl_(2)O_(4)-based and MgO-Cr_(2)O_(3)-based refractories with X70 molten steel was studied by immersion experiments at 1560℃.The effects of immersion time(30 and 60 min)on the contents of total oxygen(TO),Al,Nb,Si,Mn,and Cr as well as the composition,number density,and size distribution of inclusions in the molten steel were *** influence of the penetration and erosion degree of the molten steel to the refractory on the steel-refractory interface layer was *** results show that,at 1560℃,the MgO-MgAl_(2)O_(4)-based refractory can better control the contents of TO and the composition of molten steel compared with the MgO-Cr_(2)O_(3)-based *** TO content is only 16×10^(-4) wt.%in the molten steel after reacted with the Mg0-MgAl_(2)O_(4)-based refractory at the end point of refining,4 accounting for 11.5%of that reacted with the MgO-Cr_(2)O_(3)-based refractory(139×10^(-4) wt.%).The number density of inclusions is only 14 mm^(-2),and the average size ofinclusions is only 1.31μm,with thelargest proportion of inclusions in 1-2μm(70%).The Al_(2)O_(3)-MnS-CaO complex inclusions in the original steel changed to complex inclusions dominated by Cr-Nb-Mn-S-O and ***_(2)O_(3),corresponding to the MgO-Cr_(2)O_(3)-based and MgO-MgAl_(2)O_(4)-based refractories,*** ***_(2)O_(3) layer was formed at the reaction interface between MgO-MgAl_(2)O_(4)-based refractory and molten steel,which is helpful to restrict the erosion of refractories and the pollution of molten *** damage mechanism of the MgO-Cr_(2)O_(3)-based refractory is mainly permeation and chemical reaction,while the damage of the MgO-MgAl_(2)O_(4)-based refractory is mainlyscouring erosion.

关键词： MgO-Cr_(2)O_(3)-based refractory MgO-MgAl O_(4)-based refractory Nonmetallic inclusion Erosion interface layer Steel penetration

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