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Cobalt Single Atom-Catalyzed Formation of LiOH in Li-O_(2)Batteries via the Direct 4-Electron Oxygen Reduction Pathway

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CCS Chemistry 2024年第10期6卷 2502-2514页

作者： Kang Huang Hao Wan Zhichao Gong Jianbin Liu Minmin Yan Jun Wu Chunyu cui Gonglan Ye Karsten Reuter Huilong Fei Advanced Catalytic Engineering Research Center of the Ministry of Education State Key Laboratory for Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082 Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin 14195

The formation of LiOH as the discharge product instead of Li_(2)O_(2)in Li-O_(2)batteries(LOBs)is highly desirable due to the associated drawbacks of Li_(2)O_(2)-based chemistry,which involves the generation of reactive oxygen intermediates responsible for substantial side ***,the current challenge lies in the formation pathway of LiOH,which typically requires the chemical hydrolysis of the hazardous LiO_(2)or Li_(2)O_(2)intermediate,posing risks to the battery ***,we report a direct 4e–electrochemical approach to LiOH enabled by a single atom catalyst(SAC)consisting of CoN_(3)moieties embedded in graphene(CoN_(3)-G),while Li_(2)O_(2)is formed on the metal-free nitrogen-doped graphene(ng).The direct 4e–LiOH pathway significantly reduces the parasitic reactions,resulting in negligible damage to the electrolyte and *** stands in strong contrast to the conventional 2e–Li_(2)O_(2)pathway mediated by ng and the indirect LiOH pathway by MnO_(2).Theoretical calculations further clarify that the presence of CoN_(3)sites enhances the adsorption of oxygen-containing intermediates like*OLiO and*Li_(2)O_(2),promoting the protonation of*Li_(2)O_(2)and the cleavage of the O–O bond to form *** work demonstrates a promising strategy to modulate the reaction pathways in LOBs and broadens the applications of SACs.

关键词： single atom catalyst LiOH Li-O_(2)batteries direct 4-electron oxygen reduction pathway selectivity

The Lone Pair Electrons in Post-Transition Metal and Their Contribution to Optical Response

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新疆大学学报（自然科学版中英文） 2024年第5期41卷 579-590页

作者： WAng Jialong ZHAng Ruixin cui Xiuhua CHEN Zhaohui JIng qun DUAN Haiming Xinjiang Key Laboratory of Solid State Physics and Devices School of Physical Science and TechnologyXinjiang UniversityUrumqi Xinjiang 830017China Key Laboratory of Oil&Gas Fine Chemicals Ministry of Education&Xinjiang Uygur Autonomous Region School of Chemical Engineering and TechnologyXinjiang UniversityUrumqi Xinjiang 830017China

The stereochemically active lone pairs around post-transition metal atoms play an important role in determining distorted lattice structure and optical *** lone pair electrons are characterized by crystal orbitals,electron localization function(ELF)and partial density of states(PDOS).Birefringence is evaluated by means of a Born effective charge approach based on modern polarization *** origin of the different responses of birefringence and second-harmonic generation(SHG)is explored,as well as the effect of spin-orbit coupling(SOC)on the band structure and optical properties is *** study of this paper can help to deeply understand the lone pairs and their contribution to optical property.

关键词： lone pair electrons birefringence second-harmonic generation response spin-orbit coupling first-principles

Fe_(2)O_(3)-CuO/rCG催化降解水中苯并三氮唑的效能与机理

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工业水处理 2024年第9期44卷 118-126页

作者：郭紫瑞李红艳张峰崔佳丽杨群李赟太原理工大学环境科学与工程学院山西晋中030600 山西省市政工程研究生教育创新中心山西晋中030600 临县丰林现代农业发展有限公司山西吕梁033200

以煤矸石(Coal gangue,CG)为原料,通过煅烧、酸浸和金属改性制备铁铜改性煤矸石(Fe_(2)O_(3)-CuO/rCG),对Fe_(2)O_(3)-CuO/rCG的形貌结构进行了表征分析,并研究了Fe_(2)O_(3)-CuO/rCG/H_(2)O_(2)体系对苯并三氮唑(BTA)的降解效能和作用机理。结果表明:改性后Fe_(2)O_(3)-CuO/rCG比表面积和总孔容均明显增加,Fe_(2)O_(3)与CuO成功填充在材料孔隙内部;Fe_(2)O_(3)-CuO/rCG的最佳制备条件为煅烧温度650℃、煅烧时间3 h、金属离子负载浓度0.07 mol/L;Fe_(2)O_(3)-CuO/rCG/H_(2)O_(2)体系降解BTA的最佳条件为BTA质量浓度30 mg/L、Fe_(2)O_(3)-CuO/rCG投加量2 g/L、H_(2)O_(2)浓度7 mmol/L、温度25℃、转速240 r/min,反应2 h时,体系对BTA降解率最高可达94.86%,TOC与TN去除率分别可达87.69%与84.27%;Fe_(2)O_(3)-CuO/rCG耦合类Fenton体系去除BTA的作用机制主要有吸附和催化降解两种,吸附主要有孔隙填充、配体吸附和氢键作用,催化降解过程·OH和^(1)O_(2)为主要活性物种,且^(1)O_(2)占主导地位,Fe^(2+)/Fe^(3+)和Cu^(+)/Cu^(2+)的氧化还原循环加速了类Fenton体系中活性物种的生成。

关键词：煤矸石催化剂吸附催化降解苯并三氮唑

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Convenient Self-Heating Instant Food Causes Significant Increasing Human Exposure to Organophosphate Esters

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Environment & Health 2024年第1期2卷 52-61页

作者： Xiaomin Li Yuhan Yin Wei Zhou Hongting Li Boyuan Hu Yajing cui Ruoxian Zhou Peilong Wang Jianjie Fu Institute of Quality Standard and Testing Technology for Agro-Products The Chinese Academy of Agricultural Sciences(CAAS)Beijing 100081China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China School of Environment Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China

The self-heating lunch box(SHLB)is a kind of popular instant food in China,yet little is known about the associated chemical release risk during its heating *** this study,we investigated organophosphate esters(OPEs)in original unheated food(UF),SHLB-heated processed food(HF)and potential OPE release from SHLB packaging *** higher concentrations of OPEs were observed in HF(267±246 ng/g dry weight(dw))than in UF(163±211 ng/g dw)(png an introduction of additional OPEs during heating ***(2-chloroethyl)phosphate,triethyl phosphate,and tris(2-chloroisopropyl)phosphate exhibited the highest absolute increased amounts,with 137,48.8,and 149%growth in HF than in UF,*** testing revealed that packaging materials were rich in OPEs and can release considerable OPEs into food simulates(range,14.7-90.8 ng/g;mean,47.9±21.8).Influencing factors(temperature,contact time,oily food)on OPE migration from packaging materials to food were *** temperature and longer contact time increased OPE contents in food ***,the presence of abundant OPEs in UF and significant correlations among different OPEs(png food processing and *** one SHLB meal a day,a 12-fold increase of OPE intake was observed for humans compared to those following a traditional dietary *** the high-exposure(95th percentile)scenario,hazard quotients of nine OPEs ranged from 0.00005 to *** results suggested that the SHLB exposure pathway of OPEs should be particularly paid attention to in specific subpopulations that prefer this dietary habit.

关键词： Organophosphate esters Self-heating lunch box Migration influencing factors Human exposure

Simulation and analysis of co-phasing errors of the segmented primary mirror tiled by hexagonal segments in LOT

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Research in Astronomy and Astrophysics 2021年第10期21卷 37-45页

作者： Shi-Dong Shen Xiang-qun cui Yong Zhang National Astronomical Observatories/Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China CAS Key Laboratory of Astronomical Optics&Technology Nanjing Institute of Astronomical Optics&TechnologyNanjing 210042China University of the Chinese Academy of Sciences Beijing 100049China

In this paper,co-phasing errors of a segmented primary mirror tiled by hexagonal segments are successfully calculated for the 12-meter Large aperture Optical/infrared Telescope(LOT).Co-phasing errors including out-of-plane errors are simulated separately and comprehensively based on several software simulation *** simulation results show that the Strehl Ratio(SR)of LOT is larger than 0.8 when the RMS value of tip-tilt obeying a normal distribution is less than 0.018 arcsec,and the SR of LOT is larger than 0.8 when the RMS value of piston obeying a normal distribution is less than 40 ***,simulation results of Zemax show that the SR of LOT is larger than 0.8 when the RMS value of tip-tilt obeying a normal distribution is less than 0.02 arcsec,and the SR of LOT is larger than 0.8 when the RMS value of piston obeying a normal distribution is less than 40 *** simulation results successfully lay a solid foundation for LOT(especially the segmented primary mirror with active optics).

关键词： methods:analytical techniques:miscellaneous telescopes

Comparison of distal radial artery access and conventional transradial access for percutaneous coronary intervention

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South China Journal of Cardiology 2024年第2期25卷 123-128页

作者：高乐廖利群卢建勇邓敏婕容翠月 GongRen Hospital of WuZhou Wuzhou cityGuangxi Province 543000China

Background Distal radial artery access(DRA)has emerged as an alternative to conventional transradial access(TRA)for percutaneous coronary interventions(PCI).This study aims to compare the efficacy and safety of DRA versus *** A total of 873 participants were enrolled,divided into the DRA group(n=236)and the TRA group(n=637).The primary endpoint was the success rate of access *** endpoints included procedural efficiency,patient comfort,and complication *** characteristics,procedural data,and outcomes were analyzed and compared between the two *** The success rates for access puncture showed no significant statistical difference between the DRA and TRA ***,the DRA group required more puncture *** showed significant advantages,including shorter hemostasis times,reduced access puncture and postprocedural pain,and lower incidences of radial artery occlusion(2.1%vs.6.1%,P=0.043)and hematoma(1.7%vs.5.2%,P=0.037).Conclusions DRA is a viable alternative to TRA for performing PCI,offering comparable success rates and procedural efficiency with improved patient comfort and reduced complications.

关键词： Distal radial artery access Conventional transradial access Percutaneous coronary intervention Radial arteryocclusion

人工智能背景下科技期刊论文出版中的伦理风险与应对策略——以医学论文为例

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数字出版研究 2024年第4期3卷 94-100页

作者：许媛媛张群崔云裳中国疾病预防控制中心北京102206

人工智能(Artificial Intelligence,AI)技术在科技期刊论文,特别是医学论文编辑出版领域的应用优势突出,但同时也带来了多重伦理挑战。在当前AI技术快速迭代的发展趋势下,医学论文编辑出版面临伦理问题风险,包括数据质量和透明度不足、... 详细信息

人工智能(Artificial Intelligence,AI)技术在科技期刊论文,特别是医学论文编辑出版领域的应用优势突出,但同时也带来了多重伦理挑战。在当前AI技术快速迭代的发展趋势下,医学论文编辑出版面临伦理问题风险,包括数据质量和透明度不足、公平性和偏见问题、利益冲突及论文撰写问题等,可加强法律责任、风险管理、监管审查,以及提高科研人员和编辑出版人员在AI使用中的边界意识,强化职业操守,确保AI服务于学术交流的同时,满足学术出版伦理道德的要求。

关键词：人工智能科技期刊医学研究学术出版伦理风险应对策略

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Pathologically successful conversion hepatectomy for advanced giant hepatocellular carcinoma after multidisciplinary therapy:A case report and review of literature

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1647-1659页

作者： Ju-Hang Chu Lu-Yao Huang Ya-Ru Wang Jun Li Shi-Long Han Hao Xi Wen-Xue Gao Ying-Yu cui Ming-Ping Qian Department of General Surgery Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Department of Interventional and Vascular Surgery Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Department of Pathology Shanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai 200072China Clinical Research Management Office Shanghai Tenth People’s HospitalShanghai 200072China Department of Cell Biology Institute of Medical GeneticsState Key Laboratory of CardiologyTongji University School of MedicineShanghai 200331China

BACKGROUND Hepatocellular carcinoma(HCC)is one of the leading causes of death due to its complexity,heterogeneity,rapid metastasis and easy recurrence after surgical *** demonstrated that combination therapy with transcatheter arterial chemoembolization(TACE),hepatic arterial infusion chemotherapy(HAIC),Epclusa,Lenvatinib and Sintilimab is useful for patients with advanced *** SUMMARY A 69-year-old man who was infected with hepatitis C virus(HCV)30 years previously was admitted to the hospital with abdominal *** computed tomography(CT)revealed a low-density mass in the right lobe of the liver,with a volume of 12.9 cm×9.4 cm×15 cm,and the mass exhibited a“fast-in/fast-out”pattern,with extensive filling defect areas in the right branch of the portal vein and an alpha-fetoprotein level as high as 657 ng/***,he was judged to have advanced *** treatment,the patient received three months of Epclusa,three TACE treatments,two HAIC treatments,three courses of sintilimab,and twenty-one months of *** the third month of treatment,the patient developed severe side effects and had to stop immunotherapy,and the Lenvatinib dose had to be *** pathological diagnosis indicated a complete *** patient recovered well after the operation,and no tumor recurrence was *** Multidisciplinary conversion therapy for advanced enormous HCC caused by HCV infection has a significant *** drug adjustments should be made during any treatment according to the patient's tolerance to treatment.

关键词： Hepatocellular therapy Conversion hepatectomy Interventional therapy Epclusa Lenvatinib Sintilimab Case report

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光催化反应器的研究进展

现代化工 2024年第S01期44卷 30-35,41页

作者：崔熠婧孙伟宸沈超群张程宾扬州大学电气与能源动力工程学院江苏扬州225127 东南大学能源与环境学院江苏南京210096

光催化技术在制氢、CO_(2)还原、燃料电池、大气治理、室内空气处理、污水处理、检验检测、生物质利用等众多领域具有广泛应用。光催化反应发生在反应器内,因此光催化反应器的设计及其性能对保证催化反应效率、控制成本及工程应用有重... 详细信息

光催化技术在制氢、CO_(2)还原、燃料电池、大气治理、室内空气处理、污水处理、检验检测、生物质利用等众多领域具有广泛应用。光催化反应发生在反应器内,因此光催化反应器的设计及其性能对保证催化反应效率、控制成本及工程应用有重要意义。总结了不同光催化反应器的结构特点,并讨论了光源及其结构、催化剂及其改性、温度和pH等对光催化反应器性能的影响。

关键词：光催化反应器结构