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22篇 您的检索式:作者名="Alla K"
    题名 作者 年代 出处 被引量
1机械化学法制备的Al/Ce复合氧化物负载NiMo催化剂的加氢脱硫活性(英文)显示文摘将Al和/或Ce的硝酸盐与NH_4HCO_3球磨混合,采用机械化学法制备了Al_2O_3-CeO_2载体(其中Ce含量为1-10 wt%),再以杂多钼酸盐(NH_4)_4NiMo_6O_(24)为活性金属Ni和Mo的前驱体,通过浸渍法制备NiMo_6/Al_2O_3-CeO_2催化剂,并将其用于1-苯并噻吩(BT)的加氢脱硫(HDS)反应中.运用化学分析、X射线衍射、N_2吸附-脱附法、H_2程序升温还原、NH_3程序升温脱附和X射线光电子能谱对催化剂的物化性质进行了表征.结果表明,催化剂的酸性随着载体中Ce含量的增加而下降.Ce修饰的Al_2O_3载体表面的NiS/MoS原子比下降了2倍.NiMo_6/Al_2O_3催化剂表现出最高的HDS活性(以单位重量催化剂计),其酸性和表面MoO_xS_y物种的浓度(Mo^(5+)浓度)也最高;当催化剂中Ce含量逐渐增加到10 wt%以上时,其活性逐渐将为0.与浸渍法制得的参比催化剂相比,前驱体和催化剂组成相同的情况下,采用机械化学法制得的所有催化剂活性明显提高.Květa Jirátová Alla Spojakina Luděk Kaluza Radostina Palcheva Jana Balabánová Georgi Tyuliev 2016Chinese Journal of Catalysis2016,37,2:6
2镍钼杂多酸制备NiMo/γ-Al_2O_3催化剂及硼、钴或镍改性氧化铝的影响(英文)显示文摘A hydrotreating NiMo/γ-Al2O3 catalyst(12 wt% Mo and 1.1 wt% Ni) was prepared by impregnation of the support with the Anderson-type heteropolyoxomolybdate(NH4)4Ni(OH)6Mo6O18.Before impregnation of the support,it was modified with an aqueous solution of H3BO3,Co(NO3)2,or Ni(NO3)2.The catalysts were investigated using N2 adsorption,O2 chemisorption,X-ray diffraction,UV-Vis spectroscopy,Fourier transform infrared spectroscopy,temperature-programmed reduction,temperature-programmed desorption,and X-ray photoelectron spectroscopy.The addition of Co,Ni,or B influenced the Al2O3 phase composition and gave increased catalytic activity for 1-benzothiophene hydrodesulfurization(HDS).X-ray photoelectron spectroscopy confirmed that the prior loading of Ni,Co or B increased the degree of sulfidation of the NiMo/γ-Al2O3 catalysts.The highest HDS activity was observed with the NiMo/γ-Al2O3 catalyst with prior loaded Ni.Radostina PALCHEVA Luděk KALUZA Alla SPOJAKINA Květue JIRTOV Georgi TYULIEV 2012催化学报2012,33,6:6
3Prolonged QTo intervaland torsades de pointes induced by citalopram 显示文摘Deshmukh A Ulveling K Alla V 2012Tex Heart InstJ2012,39,1:1
4Omenn syndrome with mutation in RAG1 gene显示文摘Jaouad IC Ouldim K Ali Ou Alla S 2008Indian J Pediatr2008,75,9:1
5Taylor expansion diagrams: acanonical representation fo r verification o f data flo w designs显示文摘Ciesielski M K alla P Askar S 2006IEEE Transactions on Computers2006,55,9:1
6Lack of effects of trime tazidineon systemic hemody-namics in patients with coronary artery dis- eade: a placebo-onlrolled study 显示文摘Porin M Harpeyc K Alla J 1994Clin Trials Metaanal1994,29,:1
7Differential roles of Tau class glutathione S-transferases in oxidative stress显示文摘KIMITI G K NELI A ALLA V 2004The Journal of Biological Chemistry2004,279,23:1
8Biosorption of Cu( H ),CdC II ) and Pb( U ) byAcacia leucocephala bark powder: kinetics, equilibrium andthermodynamics 显示文摘Munagapati V S Yarramuthi V Nadavala S K Alla S R Abburi K 2010Chemical Engineering Journal2010,157,:1
9Metabolic effects Of a growth hormone-releasing factor in patients with HIV 显示文摘Falutz J Allas S Blot K 2007N Engl J Med2007,357,23:1
10A human myeloma cell line suitable for the generation of human monoclonal antibodies显示文摘Abraham K Alla D Barbara H 2001Proc Natl Acad Sci USA2001,98,:1
11Energetically important C - H…F - C pseudohydrogen bonding in water: evidence and application to rational design of oligonucleotides with high binding affinity显示文摘Anzahaee M Y Watts J K Alla N R 2011J Am Chem Soc2011,133,:1
12Local injection of a selective endothelin-b receptor agonist inhibits endothelin1-induced pain-like behavior and excitation of nociceptors in a naloxone -sensitive manner显示文摘Alla K Moin UF Alexander G 2002The Journal of Neuroscience September 12002,22,17:1
13Infrared spectroscopic study of lignins显示文摘Alla M A Mohamend E I Samir M K 1998Polymer Degradation and Stability1998,60,:1
14Add-on fluvoxamine improves primary negative symptoms:Evdence for specificity from response analysis of individual symptoms显示文摘 NELSON A ALLA K 2003Schizophrenia Bulletin2003,29,:1
15Heavy drugs draw heavy interest from pharma backers显示文摘Alla K 2013Nature Medicine2013,19,6:1
16Phase Ⅱ clinical trial of intralesional administration of the oncolytic adenovirus ONYX-015 in patients with hepatobiliary tumors with correlative p53 studies显示文摘Della M Alla R Howard K 2003Clinical Cancer Research2003,9,2:1
17Local and systemic effects of unpolymerised monomers 显示文摘GOSAVI S S GOSAVI S Y ALLA R K 2010Dent Res J (Isfah- an)2010,7,2:1
18Cloning and expression of multiple integral membrane proteins from Mycobacterium tuberculosis in Escherichia coli显示文摘Alla K F P Gao Y Z Hua 0,,01:1
19Genome sequence and analysis of the soil cellulolytic actinomycete Thermobifidafusca YX 显示文摘Athanasios L Konstantinos M Natalia I lain A Miriam L Genevieve D Michele M Alla L Susan L Alex C Paul R David BW Nikos K 2007J Bacteriol2007,189,6:1
20Phase Ⅱ clinical trial of intralesional administration of the oncolytic adenovirus ONYX-015 in patients with hepatobiliary tumors with correlative p53 studies显示文摘Della M Alla R Howard K 2003Clinical Cancer Research2003,9,:1
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