检索范围:
排序: 展示方式:
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1807-1817 doi: 10.1007/s11705-022-2243-2
关键词: Ru/C catalyst in-situ H2 reduction and moderate oxidation in-situ reduction non-in-situ reduction hydrogenation of 3 5-dimethylpyridine
Polyolefin-nanocomposites with special properties by in-situ polymerization
Walter Kaminsky
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 555-563 doi: 10.1007/s11705-018-1715-x
Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization using soluble metallocene/methylaluminoxane (MAO) as catalysts in a two-step process. First, the soluble metallocene/MAO or other single site catalysts are absorbed on the surface of the nanofillers. Then by addition of ethene or propene, a polyolefin film is formed, covering the nanoparticles, layered silicates, or fibers. The resulting polyethylene and polypropylene nanocomposites are characterized by better physical and chemical properties such as stiffness, gas barrier properties, degradation temperatures, and crystallization rates. They show better mechanical properties than materials produced by mechanical blending. The thickness of the polyolefin can be controlled by the pressure of ethene or propene and by the polymerization time. Carbon fibers and carbon nanotubes are covered with isotactic or syndiotactic polypropylene. Because of the hydrophobic character of the carbon surface, the polymer is drawn on the fiber. This leads to a reinforced combined polymer with special properties. The crystallization temperature is 10 °C higher and therefore the crystallization rate up to 20 times faster than that of pure syndiotactic polypropylene. The form stability increases by 100% if 3 wt-% of carbon nanotubes are incorporated.
关键词: polyolefin nanocomposites metallocenes methylaluminoxane
Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG
《化学科学与工程前沿(英文)》 2011年 第5卷 第1期 页码 67-73 doi: 10.1007/s11705-010-0541-6
关键词: glycerol aqueous-phase reforming 1 3-propanediol in-situ reduction
In-situ condition monitoring of reinforced concrete structures
Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 420-437 doi: 10.1007/s11709-016-0336-z
关键词: concrete carbonation chloride corrosion monitoring models
Organics Recovery from Waste Activated Sludge In-situ Driving Efficient Nitrogen Removal from Mature
Fangzhai Zhang,Shang Ren,Haoran Liang,Zhaozhi Wang,Ying Yan,Jiahui Wang,Yongzhen Peng,
《工程(英文)》 doi: 10.1016/j.eng.2023.03.005
关键词: Waste activated sludge Bioresource recovery Simultaneous treatment of wastewater and sludge Mature landfill leachate Free nitrous acid
density measurement for plastic injection molding via ultrasonic technology
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0714-2
关键词: ultrasonic measurement melt density in-situ measurement injection molding
Yonglei Wang, Baozhen Liu, Kefeng Zhang, Yongjian Liu, Xuexin Xu, Junqi Jia
《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1077-0
Microbial metabolism uncoupling, sludge decay is the main mechanism to promote in situ sludge reduction on this biofilm system. The main reduction mechanism inside the biofilm is sludge decay in the longitudinal distribution of biofilm. Mizugakiibacter and Azospira anaerobic fermentation bacterium dominate the FSC organisms indicating the dominant mechanism on the biofilm is sludge decay. The floating spherical carriers with compound of the polyurethane and two fiber balls can effectively blocking suspended sludge, improving Biofilm formation efficiency significantly.
关键词: In situ sludge reduction Biofilm Composite floating spherical carriers Microbial community SBBR
In situ DRIFTS study of photocatalytic CO 2 reduction under UV irradiation
Jeffrey C. S. WU, Chao-Wei HUANG,
《化学科学与工程前沿(英文)》 2010年 第4卷 第2期 页码 120-126 doi: 10.1007/s11705-009-0232-3
关键词: irradiation oxygen-vacancy Photocatalytic reduction Carbonate butoxide
A novel six-legged walking machine tool for
Jimu LIU, Yuan TIAN, Feng GAO
《机械工程前沿(英文)》 2020年 第15卷 第3期 页码 351-364 doi: 10.1007/s11465-020-0594-2
关键词: legged robot parallel mechanism mobile machine tool in-situ machining
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0756-0
关键词: kinetostatic modeling morphology characterization variable friction continuum robots in-situ maintenance
grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity
《能源前沿(英文)》 2021年 第15卷 第3期 页码 721-731 doi: 10.1007/s11708-021-0766-8
关键词: photocatalytic H2 evolution TiN/N-TiO2 composite plasmonic effect in-situ nitridation
In situ electron-induced reduction of NO
Weixuan Zhao, Liping Lian, Xingpeng Jin, Renxi Zhang, Gang Luo, Huiqi Hou, Shanping Chen, Ruina Zhang
《环境科学与工程前沿(英文)》 2020年 第14卷 第2期 doi: 10.1007/s11783-019-1199-z
《化学科学与工程前沿(英文)》 2022年 第16卷 第3期 页码 443-460 doi: 10.1007/s11705-021-2079-1
关键词: Stöber method carbon-coated Ni-Co alloy in-situ hydrodeoxygenation methyl palmitate decarbonylation/decarboxylation
《化学科学与工程前沿(英文)》 2023年 第17卷 第5期 页码 548-556 doi: 10.1007/s11705-022-2252-1
关键词: hydrazine-linked TFPB-DHzDS in-situ growth method open-tubular capillary electrochromatography molecular simulations
《化学科学与工程前沿(英文)》 2023年 第17卷 第2期 页码 139-155 doi: 10.1007/s11705-022-2217-4
关键词: extended Stöber method carbon encapsulated Ni–Sn intermetallic compounds confinement in-situ hydrothermal deoxygenation hydrogenation decarbonylation
标题 作者 时间 类型 操作
Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in
期刊论文
Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis
Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG
期刊论文
In-situ condition monitoring of reinforced concrete structures
Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR
期刊论文
Organics Recovery from Waste Activated Sludge In-situ Driving Efficient Nitrogen Removal from Mature
Fangzhai Zhang,Shang Ren,Haoran Liang,Zhaozhi Wang,Ying Yan,Jiahui Wang,Yongzhen Peng,
期刊论文
Investigate of in situ sludge reduction in sequencing batch biofilm reactor: Performances, mechanisms
Yonglei Wang, Baozhen Liu, Kefeng Zhang, Yongjian Liu, Xuexin Xu, Junqi Jia
期刊论文
In situ DRIFTS study of photocatalytic CO 2 reduction under UV irradiation
Jeffrey C. S. WU, Chao-Wei HUANG,
期刊论文
Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots for aero-engine maintenance
期刊论文
In situ electron-induced reduction of NO
Weixuan Zhao, Liping Lian, Xingpeng Jin, Renxi Zhang, Gang Luo, Huiqi Hou, Shanping Chen, Ruina Zhang
期刊论文
Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation of methyl palmitate to hydrocarbons using methanol as the hydrogen donor
期刊论文
Room temperature preparation of hydrazine-linked covalent organic frameworks coated capillaries for separation and determination of polycyclic aromatic hydrocarbons
期刊论文