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Manipulating metal-support interactions of metal catalysts for Fischer-Tropsch synthesis

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Chinese Journal of Chemical Engineering 2021年第7期34卷 220-230页

作者： Qingpeng Cheng Yunhao liu Shuaishuai Lyu Ye Tian Qingxiang Ma xingang li Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) State Key Laboratory of Chemical EngineeringTianjin Key Laboratory of Applied Catalysis Science and TechnologySchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Advanced Membranes and Porous Materials Center Physical Sciences and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering Ningxia UniversityYinchuan 750021China School of Chemical and Biological Engineering Lanzhou Jiaotong UniversityLanzhou 730070China

For supported metal catalyst systems,the impact on catalysis originates from the interaction between metal nanoparticles and their ***-support interactions(MSI)can change electronic properties,geometric morphologies,or chemical compositions of metal nanoparticles to make active sites have specific properties and catalytic ***-Tropsch synthesis(FTS)is one of the most effective ways to convert cheap non-petroleum-based carbon sources into high value-added chemicals or ultraclean liquid *** this review,we summarize and classify the impact of MSI on the catalytic activity,selectivity and stability of FTS *** strategies to tune MSI are introduced in detail,and the recent development of high-efficiency FTS catalysts through the manipulation of SMI strategies has been *** is emphasized that the active metal sites,which are endowed with special functions by MSI,can change the strength of adsorption bond of adsorbates,consequently controlling the product distribution.

关键词： Metal-support interactions Fischer-Tropsch synthesis Modification strategies Activity Selectivity

Assistive robots for Beijing Winter Paralympic torch relay: Accessible technologies to restore human functionality

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The Innovation 2024年第1期5卷 19-20页

作者： Bi Zhang Mei Shuai Bicheng Han Shuo li lianqing liu xingang Zhao State Key Laboratory of Robotics Shenyang Institute of AutomationCASShenyang 110016China Institutes for Robotics and Intelligent Manufacturing CASShenyang 110169China Department of Biomedical Engineering Beihang UniversityBeijing 100191China Beijing AI-Robotics Technology Co. Ltd.Beijing 100176China Zhejiang BrainCo Technology Co. Ltd.Hangzhou 311121China

The success of the Beijing Winter Olympics and Paralympics epitomized the vision of a community with a shared future for *** robots and artificial intelligence technologies were used in various games and events,such as assisting in parades,logistics,and security *** integration of unmanned robotic systems into torch relays was one of the highlights of the Winter Olympics.

关键词： Winter Access artificial

Engineered extracellular vesicles efficiently deliver CRISPR-Cas9 ribonucleoprotein(RNP)to inhibit herpes simplex virus1 infection in vitro and in vivo

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1362-1379页

作者： Yuanda Wan liren li Ruilin Chen Jiajia Han Qiyun Lei Zhipeng Chen Xiaodong Tang Wenyu Wu Shuwen liu xingang Yao NMPA Key Laboratory for Research and Evaluation of Drug Metabolism Guangdong Provincial Key Laboratory of New Drug ScreeningSchool of Pharmaceutical SciencesSouthern Medical UniversityGuangzhou 510515China Center of Clinical Pharmacy Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060China Key Laboratory of Infectious Diseases Research in South China(Southern Medical University) Ministry of EducationGuangzhou 510515China

Extracellular vesicles(EVs)have recently emerged as a promising delivery platform for CRISPR/Cas9 ribonucleoproteins(RNPs),owing to their ability to minimize off-target effects and immune ***,enhancements are required to boost the efficiency and safety of Cas9 RNP enrichment within *** response,we employed the Fc/Spa interaction system,in which the human Fc domain was fused to the intracellular domain of PTGFRN-Δ687 and anchored to the EV ***,the B domain of the Spa protein was fused to the C domain of cargos such as Cre or *** to the robust interaction between Fc and Spa,this method enriched nearly twice the amount of cargo within the *** loaded with spCas9 RNP targeting the HSV1 genome exhibited significant inhibition of viral replication in vitro and in ***,following neuron-targeting peptide RVG modification,the in vivo dosage in neural tissues substantially increased,contributing to the clearance of the HSV1 virus in neural tissues and exhibiting a lower off-target *** findings establish a robust platform for efficient EV-based SpCas9 delivery,offering potential therapeutic advantages for HSV1 infections and other neurological disorders.

关键词： Extracellular vesicles CRISPR/Cas9 Ribonucleoproteins PTGFRN Fc/Spa HSV1 Neuron-targeting Delivery

A-site defects in LaSrMnO_(3) perovskite-based catalyst promoting NOx storage and reduction for lean-burn exhausts

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Journal of Rare Earths 2021年第8期39卷 959-968页

作者： Dongyue Zhao Yuexi Yang Zhongnan Gao Ye Tian Jing Zhang Zheng Jiang xingang li Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) State Key Laboratory of Chemical EngineeringTianjin Key Laboratory of Applied Catalysis Science and TechnologySchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China

Herein,we report the high De-NOx performance of the A-site defective perovskite-based Pd/La_(0.5)Sr_(0.3)MnO_(3) *** formation of the defective perovskite structure can be proved by both the increased Mn^(4+)/Mn^(3+) ratio and serious lattice contraction due to cationic *** promotes the Sr doping into perovskite lattice and reduces the formation of the SrCO_(3) *** results demonstrate that below 300℃ the A-site defective perovskite can be more efficiently regenerated than the SrCO_(3) phase as NOx storage sites due to the latter’s stronger basicity,and also exhibits the higher NO oxidation ability than the A-site stoichiometric and excessive *** factors promote the lowtemperature De-NOx activity of the Pd/La_(0.5)Sr_(0.3)MnO_(3) catalyst through improving its NOx trapping ***,above 300℃,the NOx reduction becomes the determinant of the De-NOx activity of the perovskite-based catalysts.A-site defects can weaken the interactions between perovskite and Pd,inducing activation of Pd sites by in-situ transformation from PdO to metallic Pd in the alternative leanburn/fuel-rich atmospheric alternations,which boosts the De-NOx activity of the Pd/La_(0.5)Sr_(0.3)MnO_(3) *** Pd/L_(0.5)Sr_(0.3)MnO_(3) catalyst exhibits the high sulfur tolerance as *** findings provide insight into optimizing the structural properties and catalytic activities of the perovskite-based catalysts via tuning formulation,and have potential to be applied for various related catalyst systems.

关键词： Dc-NOx Nonstoichiometric perovskite Pd NOx storage and reduction Lean-burn exhausts Rare earths

Recent advances in multifunctional electrochromic energy storage devices and photoelectrochromic devices

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Science China Chemistry 2017年第1期60卷 13-37页

作者： Zhongqiu Tong Yanlong Tian Hongming Zhang xingang li Junyi Ji Huiying Qu Na li Jiupeng Zhao Yao li College of Materials and Metallurgical Engineering Guizhou Institute of Technology Guiyang 550003 China Center for Composite Materials and Structure Harbin Institute of Technology Harbin 150001 China School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China Guizhou Construction Science Research & Design Institute limited Company of China State construction Engineering Corporation Guiyang 550006 China

Multifunctional devices integrated with electrochromism and energy storage or energy production functions are attractive because these devices can be used as an effective approach to address the energy crisis and environmental pollution in society today. In this review, we explain the operation principles of electrochromic energy storage devices including electrochromic supercapacitors,electrochromic batteries, and the photoelectrochromic devices. Furthermore, the material candidates and structure types of these multifunctional devices are discussed in detail. The major challenges of these devices along with a further outlook are highlighted at the end.

关键词：储能器件光电变色多功能设备电致变色能电存储设备能源危机能量存储

Tunable near-infrared light emission from layered TiS_(3) nanoribbons

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Frontiers of physics 2024年第4期19卷 103-111页

作者： Junrong Zhang Cheng Chen Yanming Wang Yang Lu Honghong li xingang Hou Yaning liang Long Fang Du Xiang Kai Zhang Junyong Wang School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Nanophotonic Materials and Devices&Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123China Frontier Institute of Chip and System Fudan UniversityShanghai 200438China School of Materials Science and Engineering Shanghai UniversityShanghai 200444China College of Energy&Power Engineering Inner Mongolia University of TechnologyHohhot 010051China

The low-dimensional light source shows promise in photonic integrated *** layered van der Waals material that exhibits luminescence in the near-infrared optical communication waveband is an essential component in on-chip light ***,the tunable near-infrared photoluminescence(PL)of the air-stable layered titanium trisulfide(TiS3)is *** with iodine particles as a transport agent,TiS3 grown by chemical vapor transport using sulfur powder as a transport agent has fewer sulfur vacancies,which increases the luminescence intensity by an order of *** PL emission wavelength can be regulated in the near-infrared regime by thickness *** addition,we observed an interesting anisotropic strain response of PL in layered TiS3 nanoribbon:a blue shift of PL was achieved when the uniaxial tensile strain was applied along the b-axis,while a negligible shift was observed when the strain was applied along the *** work reveals the tunable nearinfrared luminescent properties of TiS3 nanoribbons,suggesting their potential applications as near-infrared light sources in photonic integrated circuits.

关键词： titanium trisulfide near-infrared luminescence S-vacancy tunability strain engineering

Modeling for Volatilization and Bioremediation of Toluene-contaminated Soil by Bioventing

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Chinese Journal of Chemical Engineering 2011年第2期19卷 340-348页

作者：隋红李鑫钢 National Engineering Research Center for Distillation Technology Tianjin University Tianjin 300072 China School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

一个二维的数字模型被开发在 bioventing (BV ) 期间模仿甲苯的流动，运输和 biodegradation 在不饱和的地区的过程。为一个单个井 BV 系统的模拟被用来在补习效率上说明空气注射率的效果。空气被注入 vadose 地区创造一个积极压力。模... 详细信息

一个二维的数字模型被开发在 bioventing (BV ) 期间模仿甲苯的流动，运输和 biodegradation 在不饱和的地区的过程。为一个单个井 BV 系统的模拟被用来在补习效率上说明空气注射率的效果。空气被注入 vadose 地区创造一个积极压力。模拟结果证明那空气注射率是管理疏开，再分配和沾染物的表面损失的一个主要参数。以 81.504 m3 的注射率 ? 楳湧晩捩湡散琠? 桴 ? 湩猭瑩 ? 潣瑮浡湩瑡潩 ? 敲敭楤瑡潩 ? 灯牥瑡潩？

关键词：生物通风生物修复污染土壤甲苯挥发空气喷射建模二维数值模型

Enhanced carbon dioxide adsorption performance and kinetic study of K and Al co-doped li4SiO4

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Chinese Chemical Letters 2018年第3期29卷 482-484页

作者： Nuonuo Gao Kui Ma Tong Ding Jinmeng Cai Ye Tian xingang li Collaborative Innovation Center for Chemical Sdence & Engineering (Tianjin) Tianjin Key laboratory of Applied Catalysis Science & Engineering School of Chemical Engineering & Technology Tianjin University Tianjin 30072 China

Herein, we report the effects of doped K and Al on the carbon dioxide （CO2） adsorption performance of the li4SiO4-based adsorbents. The CO2 adsorption capacity of 0.8 wt% K and 1.5 wt% AI doped li4SiO4 is ～2.2 times and ～1.3 times higher than that of the pristine li4SiO4 at 500 and 600℃, respectively. The kinetic study further indicated that the reaction rates of the lithium diffusion process is greatly improved by K and AI doping, and the lithium diffusion rate of 0.8 wt% K and 1.5 wt% AI doped li4SiO4 is ～2 times higher than that of the pristine li4SiO4 at 575-650 ℃. K and AI doping increases the adsorption capacity of li4SiO4-based adsorbents, and widens its effective adsorption temperature range

关键词： li4SiO K and AI doping CO2 adsorption Kinetic study Adsorption stability

泡沫碳化硅波纹规整填料骨架结构对其传质性能的影响机理

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化工进展 2023年第5期42卷 2289-2297页

作者：陈伟良高鑫李洪李鑫钢天津大学化工学院精馏技术国家工程研究中心天津300350 物质绿色创造与制造海河实验室天津300192

在Ф100mm×2000mm的常压精馏塔中使用乙醇-正丙醇作为标准物系,对6种不同骨架结构及表面性质的泡沫碳化硅波纹规整填料(SCFP)的传质性能及操作压降进行了实验测试,探究了结构对填料传质性能的影响。结果表明,6种填料都有着较优秀的传... 详细信息

在Ф100mm×2000mm的常压精馏塔中使用乙醇-正丙醇作为标准物系,对6种不同骨架结构及表面性质的泡沫碳化硅波纹规整填料(SCFP)的传质性能及操作压降进行了实验测试,探究了结构对填料传质性能的影响。结果表明,6种填料都有着较优秀的传质性能表现,理论板最低可达每米5块。其中,纯质碳化硅型填料的整体传质性能要优于富硅型填料;随着孔隙率的增大,富硅型填料的传质性能有所下降,纯质碳化硅型填料的性能则有所提高;压缩比的增大有利于纯质碳化硅填料的传质性能。在压降表现方面,6种填料的操作压降均随着气相负荷的增大而有所增加,但彼此之间差异不大。同时采用紫外荧光示踪剂方法对单波纹片上液体的流动行为进行了观察,对不同填料表面液体的润湿面积、横向润湿长度进行了对比,结果表明,传质效率表现较高的填料其表面的液体润湿效果更好,有着更大的润湿面积、更长的横向润湿长度。

关键词：碳化硅泡沫陶瓷精馏规整填料流体力学传质效率