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15篇 您的检索式:作者名="Jiuling Chen"
    题名 作者 年代 出处 被引量
1CARBON NANOTUBES VIA METHANE DECOMPOSITION ON AN ALUMINA SUPPORTED COBALT AEROGEL CATALYST显示文摘An alumina-supported cobalt aerogel catalyst prepared from a sol-gel and a supercritical drying method was used in the catalytic decomposition of methane. The physical-chemical properties of the catalyst were characterized and its activity for methane decomposition was investigated. The effects of calcination and reaction temperatures on the activity of the catalyst and the morphology of the carbon nanotubes produced were discussed. A CoAl2O4 spinel structure formed in the calcined catalyst. The quantity of the nanotubes produced in the reaction increases with the amount of cobalt in the reduced catalyst. A higher reaction temperature leads to a higher reaction rate, though faster deactivation of the catalyst occurs with the change. The carbon nanotubes grown on the catalyst have smooth walls and uniform di-ameter distribution.Lingyu Piao, Jiuling Chen and Yongdan Li* Department of Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China 2003China Particuology2003,1,6:2
2Simultaneous production of hydrogen and nanocarbon from decomposition of methane on a nickel-based catalyst显示文摘Li Yongdan Chen Jiuling Qin Yongning 2000Energy & Fuels2000,14,:1
3Formation of bamboo-shaped carbon filaments and dependence of their morphology on catalyst composition and reaction conditions显示文摘Jiuling Chen Yongdan Li Yanmei Ma 2001Carbon2001,39,:1
4The doping effect of copper on the catalytic growth of carbon fibers from methane over a nikel-alumina catalyst prepared from Feitknecht compound precursor显示文摘Yongdan Li Jiuling Chen Liu Cheng 1998J Catal1998,78,:1
5显示文摘Lingyu Piao Yongdan Li Jiuling Chen 2002catalysis today2002,74,:1
6Surface modification of carbon fuels for direct carbon fuel cells显示文摘Li Xiang Zhu Zhonghua Chen Jiuling 2009Journal of Power Sources2009,186,1:1
7Effects of nitrogen doping on the structure of carbon nanotubes (CNTs) and activity of Ru/CNTs in ammonia decomposition显示文摘Chen Jiuling Zhu Zhonghua Wang Shaobin 2010Chemical Engineering Journal2010,156,2:1
8CO X -free hydrogen and carbon nanofibers production by decomposition of methane on Fe, Co and Ni metal catalysts显示文摘Jiuling Chen Xingzheng Zhou Lei Cao Yongdan Li 2004Studies in Surface Science and Catalysis2004,,:1
9Surface modification of carbon fuels for direct carbon fuel cells 显示文摘Li Xiang Zhu Zhonghua Chen Jiuling 2009Journal of Power Sources2009,186,1:1
10Simultaneous Production of Hydrogen and Nanocarbon from Decomposition of Methane over Nickel - Based Catalyst 显示文摘Li Yongdan Chen Jiuling Qin Yongning 2000Energy Fuels2000,14,6:1
11CeO2 catalysed soot oxidation The role of active oxygen to accelerate the oxidation conversion显示文摘Agus Setiabudi Jiuling Chen Guido Mul 2004Applied Catalysis B: Environmental2004,51,:1
12CHARACTERIZATION AND ADSORPTION PROPERTIES OF POROUS CARBON NANOFIBER GRANULES显示文摘The properties of the porous granules produced by agglomeration of catalytically grown carbon nanofibers were investigated in this work. The single pellet crushing strength of the granules is high, e.g., 1.6-2.5 MPa. They have high specific surface areas, averaging 72-141 m2?g-1, and the majority of their pores are mesopores or macropores. The adsorption at 298 K of benzene or phenol on the granules is much lower than that on activated carbon and depends not only on the specific surface area of the carbon material but also on the sewing structure of the granules and the mor- phology of the carbon nanofibers. Treatment in dilute nitric acid appreciably reduces such adsorption.Jiuling Chen Qinghai Chen Yongdan Li 2006China Particuology2006,4,5:1
13Whole-milk consumption decreases the risk of inflammatory bowel disease:a two-sample Mendelian rand omization analysis显示文摘Objective: The impact of dairy fat on inflammatory bowel disease remained inconclusive. We aimed to compare the effects of whole-milk and skimmed-milk consumption on the risk of inflammatory bowel disease using a Mendelian randomization analysis.Methods: We conducted a genome-wide association study of the preference for whole versus skimmed milk using data for 20,200 whole-milk consumers and 67,847 skimmed-milk consumers from the UK Biobank. The lead single nucleotide polymorphisms in the associated loci were identified at the genome-wide significance level, and were further employed as instrumental variables for whole-milk preference. We conducted a two-sample Mendelian randomization analysis with whole-milk preference as the exposure and inflammatory bowel disease as the outcome. The pleiotropic effects and heterogeneity of the instrumental variables were estimated using Mendelian randomization-Egger regression and CochranQ test, respectively. This study was conducted using the UKB resources under the application '53536' . The UK Biobank was approved by the North West Multi-center Research Ethics Committee, the National Information Governance Board for Health and Social Care in England and Wales, and the Community Health Index Advisory Group in Scotland.Results: The genome-wide association study identified five lead nucleotide polymorphisms associated with whole-milk preference. Mendelian randomization indicated that whole-milk preference significantly decreased the risk of inflammatory bowel disease (β=-1.735,P=0.048). Of the two subtypes, whole-milk preference was associated with a lower risk of Crohn disease (β=-2.549,P=0.032), but had no significant effect on the risk of ulcerative colitis (β=-1.002,P=0.44).Conclusion: Consumption of whole-milk fat may protect against Crohn disease, compared with skimmed milk. This conclusion was based on causal inference in a cohort study, and further validation in randomized controlled trials is warranted.Jiuling Li Haoxue Zhu Aowen Tian Ying Guo Xiaoxuan Zhao Miaoran Zhang Lanlan Chen Jianping Wen Jianli Yang Baiyu Qi Peng Chen 2021Journal of Bio-X Research2021,4,3:0
14Carbon Nanotube Supported Amorphous MoS_(2) via Microwave Heating Synthesis for Enhanced Performance of Hydrogen Evolution Reaction显示文摘Amorphous molybdenum disulfide(MoS_(2))is a promising electrochemical catalyst for hydrogen evolution reaction(HER)due to more active sites exposed on the surface compared to its crystalline counterpart.In this study,a novel fast three-minute one-pot method is proposed to prepare the single-wall carbon nanotube-(SWCNT-)supported amorphous MoS_(2) via a microwave heating process.Compared to traditional hydro-or solvent thermal methods to prepare MoS_(2) which usually consume more than 10 hours,it is more promising for fast production.An overpotential at 10 mA/cm2 of amorphous MoS_(2)@SWCNT is 178 mV,which is 99mV and 22mV lower than crystalline MoS_(2)@SWCNT and pure amorphous MoS_(2),respectively.After running 1000 cycles of polarization,~2%increase in overpotential is observed,indicating its good stability.The enhanced performance results from the beneficial combination of the SWCNT substrate and the amorphous microstructures.The introduction of SWCNT increases catalyst conductivity and prevents MoS_(2) aggregation.The amorphous microstructures of MoS_(2) prepared by a microwave heating method lead to more Mo edges or active sites exposed.Wei Tang Jie Jian Gen Chen Wenjuan Bian Jiuling Yu Haiyan Wang Meng Zhou Dong Ding Hongmei Luo 2021Energy Material Advances2021,,1:0
15CATALYST DESIGN FOR METHANE DEHYDROGENATION AND BENZENE HYDROGENATION显示文摘Highly active and stable nickel catalyst for dehydrogenation of methane and hydrogenation of benzene is prepared from a precursor with hydrotalcite-like anionic clam structure by coprecipitation. The nickel particles have a narrow size distribution in several nanometers, and have a strong interaction with other components such as Al2O3. This catalyst is highly sensitive to further modification by doping and to reaction condition. On a modified catalyst, benzene hydrogenation to cyclohexane proceeds to complete at 373 K. While on another catalyst, different structured nanocarbons are obtained at moderate temperatures. It is found that the thioresistance of the nickel catalyst in hydrogenation can be improved by doping.Li Yongdan, Hou Chaopeng, Qin Yuxiang, Meng Xiangchun, Chen Jiuling and Chang Liu (Department of Catalysis Science and Technology School of Chemical Engineering, Tianjin University Tianjin 300072) 2000化工学报2000,51,S1:0
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