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| 1 | Chemical equilibrium controlled synthesis of polyoxymethylene dimethyl ethers over sulfated titania显示文摘The chemical equilibrium and reaction kinetic behavior in the synthesis of polyoxymethylene dimethyl ethers(DMMn) were investigated over sulfated titania in order to reveal the decisive factor controlling the reaction. The results showed that the molar ratio of adjacent DMMn products in equilibrium solution had the same value, which depended absolutely on the reaction temperature. Meanwhile, the reactions had the same DMMn products distributions under varied reaction conditions. The equilibrium constants of the related step-wise reactions for DMMn formation were equal, which were calculated based on the bulk compositions of the reaction solution. And thus, the selectivity to DMMn was mainly controlled by the chemical equilibrium, i.e., thermodynamic control. In brief, the present results provide some guidance for future synthesis of DMMn. | Huaju Li Huanling Song Feng Zhao Liwei Chen Chungu Xia | 2015 | Journal of Energy Chemistry2015，24，2： | 17 |
| 2 | Construction of a BAC library from cucumber (Cucumis sativus L.) and identification of linkage group specific clones显示文摘A bacterial artificial chromosome (BAC) library consisting of 19,200 clones with an average insert size of 105 kb has been constructed from a cucumber (Cucumis sativus L.) inbred line S94,derived from a cultivar in North China. The entire library was equivalent to approximately 5 haploid cucumber genomes. To facilitate chromosome engineering and anchor the cucumber genetic linkage map to its chromosomes,15 sequence-characterized ampli?ed regions (SCAR) and seven simple sequence repeats (SSR) markers from each link-age group of cucumber were used to screen an ordered array of pooled BAC DNA with polymerase chain reaction (PCR). Fifteen mark-ers gave at least two positive clones. As a result,22 BAC clones representing 7 linkage groups of cucumber were identified,which further validated the genome coverage and utility of the library. This BAC library and linkage group specific clones provide essential resources for future research of the cucumber genome. | Yuan Guan Qi Chen Junsong Pan Zheng Li Huanle He Aizhong Wu Rentao Song Run Cai | 2008 | Progress in Natural Science:Materials International2008，18，2： | 7 |
| 3 | Characterization and performance of Cu/ZnO/Al_2O_3 catalysts prepared via decomposition of M(Cu,Zn)-ammonia complexes under sub-atmospheric pressure for methanol synthesis from H_2 and CO_2显示文摘Methanol synthesis from hydrogenation of CO2 is investigated over Cu/ZnO/Al2O3 catalysts prepared by decomposition of M(Cu,Zn)-ammonia complexes (DMAC) at various temperatures.The catalysts were characterized in detail,including X-ray diffraction,N2 adsorption-desorption,N2O chemisorption,temperature-programmed reduction and evolved gas analyses.The influences of DMAC temperature,reaction temperature and specific Cu surface area on catalytic performance are investigated.It is considered that the aurichalcite phase in the precursor plays a key role in improving the physiochemical properties and activities of the final catalysts.The catalyst from rich-aurichalcite precursor exhibits large specific Cu surface area and high space time yield of methanol (212 g/(Lcat·h);T=513 K,p=3MPa,SV=12000 h-1). | Danjun Wang Jun Zhao Huanling Song Lingjun Chou | 2011 | Journal of Natural Gas Chemistry2011，20，6： | 6 |
| 4 | Effect of impregnation strategy on catalytic hydrogenation behavior of PtCo catalysts supported on La2O2CO3 nanorods显示文摘Small Pt and Pt-Co nanoparticles(NPs) stabilized on La_2 O_2 CO_3 nanorods(LOC) were prepared by wet impregnation method,and probed in liquid-phase chemoselective hydrogenation of crotonaldehyde(CRAL) to crotyl alcohol(CROL).It is found that incorporation of Co atoms into Pt catalyst significantly improves the hydrogenation activity and desired selectivity to CROL as it destroys the Pt-lanthanum interfaces and results into the formation of Pt-Co particles.In addition,a close examination of catalyst surface and reactive performance suggests that the impregnation sequence of Pt and Co exerts great influence on the physicochemical property and the catalytic hydrogenation behavior of PtCo/LOC catalysts.As a result of the interaction between Pt and Co species,high alloying degree of Pt-Co NPs is obtained in the co-impregnated catalyst(Pt-Co/LOC),thus achieving the highest hydrogenation activity.The selective deposit of Co atoms onto the low-coordinated Pt sites leads to the smallest metal particle size and high dispersion of Pt-Co NPs over the Pt/Co/LOC,giving rise to the highest selectivity and yield to CROL. | Fengjun Hou Huahua Zhao Huanling Song Lingjun Chou Jun Zhao Jian Yang Liang Yan | 2018 | Journal of Rare Earths2018，36，9： | 4 |
| 5 | E3 ligase FBXW7 aggravates TMPD-induced systemic lupus erythematosus by promoting cell apoptosis显示文摘Systemic lupus erythematosus(SLE)is a systemic autoimmune disease,and the pathogenesis of SLE has not been fully elucidated.The E3 ubiquitin ligase FBXW7 has been well characterized in cancer as a tumor suppressor that can promote the ubiquitination and subsequent degradation of various oncoproteins;however,the potential role of FBXW7 in autoimmune diseases is unclear.In the present study,we identified that FBXW7 is a crucial exacerbating factor for SLE development and progression in a mouse model induced by 2,6,10,14-tetramethylpentadecane(TMPD).Myeloid cell-specific FBXW7-deficient(Lysm+FBXW7f/f)C57BL/6 mice showed decreased immune complex accumulation,glomerulonephritis,glomerular mesangial cell proliferation,and basemembrane thickness in the kidney.Lysm+FBXW7f/f mice produced fewer anti-Sm/RNP and anti-ANA autoantibodies and showed a decreased MHC II expression in B cells.In Lysm+FBXW7f/f mice,we observed that cell apoptosis was reduced and that fewer CD11b+Ly6Chi inflammatory monocytes were recruited to the peritoneal cavity.Consistently,diffuse pulmonary hemorrhage(DPH)was also decreased in Lysm+FBXW7f/f mice.Mechanistically,we clarified that FBXW7 promoted TMPD-induced cell apoptosis by catalyzing MCL1 degradation through K48-linked ubiquitination.Our work revealed that FBXW7 expression in myeloid cells played a crucial role in TMPD-induced SLE progression in mice,which may provide novel ideas and theoretical support for understanding the pathogenesis of SLE. | Zhenlu Chong Chunjing Bao Jia He Tianxiao Chen Lijia Zhong Gaopeng Li Huanle Li Lutong Fang Yinjing Song Guoxiang Fu Xuyan Yang Lihua Lai Yang Liu Qingqing Wang | 2018 | Cellular & Molecular Immunology2018，15，12： | 2 |
| 6 | Synthesis and catalytic application in isobutane dehydrogenation of the mesoporous chromia/alumina catalysts based on a metal-organic framework显示文摘 | Huahua Zhao Huanling Song Lingjun Chou | 2013 | Microporous and Mesoporous Materials2013，，： | 1 |
| 7 | Epoxidation of Butadiene over Nickel Modifi ed TS-1 Catalyst显示文摘 | Wu Mei Chou Lingjun Song Huanling | 2012 | Catal Lett2012，142，5： | 1 |
| 8 | Isobutane dehydrogenation over the mesoporous Cr2O3/Al2O3 catalysts synthesized from a metal-organic framework MIL-101显示文摘 | ZHAO Huahua SONG Huanling XU Leilei | 2013 | Applied Catalysis A:General2013，456，： | 1 |
| 9 | CRF01_AE subtype is associated with X4 tropism and fast HIV progression in Chinese patients infected through sexual transmission显示文摘 | Yijia Li Yang Han Jing Xie Lijun Gu Wenjuan Li Huanling Wang Wei Lv Xiaojing Song Yanling Li Jean-Pierre Routy Takaomi Ishida Aikichi Iwamoto Taisheng Li | 2014 | AIDS2014，，4： | 1 |
| 10 | Designed SO-/Fe203-SiO2 Solid Acids for Polyoxymethylene Dimethyl Ethers Synthesis: The Acid Sites Control and Reaction Path- ways显示文摘 | Li Huaju Song Huanling Xia Chungu | 2014 | ApplCatal B2014，165，8： | 1 |
| 11 | Role of cerium dopants in MoVNbo multi-metal oxide catalysts for selective oxidation of ethane显示文摘The effect of Ce on the structure of MoVNbCeO multi-metal oxide catalysts and the performance of ethane selective oxidation was investigated.These multi-metal oxide catalysts with superior oxidizability exhibit high catalytic activity,and vanadium acts as the active center for ethane oxidation reaction.The improved catalytic activity is related to the increased V^(5+) content on the catalyst surface,which results from the enhanced transformation of the electrons between V and Ce.Moreover,Ce effectively promotes oxygen adsorption,activation,and mobility.And the presence of Ce can also prevent MoO_(3) formation and stabilize the Mo_(5)O_(14)-like structure.In addition,the catalyst with a moderate amount of Ce exhibits outstanding catalytic performance.Especially,the MVN-Ce catalyst with a Ce/V ratio of 0.1 exhibits the best performance:the total selectivity of the catalyst toward C_(2)H_(4) and CH_(3) COOH is the highest(72%) at the ethane conversion of 31%.Therefore,MoVNbCeO multi-metal oxides are promising candidates for selective oxidation. | Baohua Liu Liang Yan Huahua Zhao Jian Yang Jun Zhao Huanling Song Lingjun Chou | 2022 | Journal of Rare Earths2022，40，5： | 1 |
| 12 | Isobutane dehydrogenation over chromia alumina catalysts prepared from MIL-101: Insight into chromium species on activity and selectivity显示文摘Various mesoporous chromia alumina catalysts were prepared by five different methods based on a metal-organic framework MIL-101 and their catalytic performances over isobutane dehydrogenation were investigated. The highly dispersed chromium species were produced on catalyst KCr Al-I1 with largest specific surface area of 198 m2 g-1prepared with aluminium isopropoxide(Al(i-OC3H7)3) by ultrasonic impregnation method. However, the catalyst KCr Al-I2 synthesized by stirring impregnation possessed crystalline α-Cr2O3 phase, which was poorly dispersed. Two types of Cr-rich and Al-rich Crx Al2-xO3 solid solutions, designated as Cr Al-I and Cr Al-II phase, were formed over the catalysts KCr Al-I3(prepared by Al(i-OC3H7)3with nitric acid regulation), KCr Al-C4(prepared by aluminium chloride hexahydrate) and KCr Al-N5(prepared by aluminium nitrate nonahydrate). Catalytic evaluation results revealed that KCr Al-I1 exhibited the high isobutane conversion due to its highly dispersed chromium species. However, KCr Al-I3, KCr Al-C4 and KCr Al-N5 showed the higher isobutene selectivity(95.2%-96.4%) on account of the formation of chromia alumina solid solutions in the catalysts. Moreover, the solid solution over the chromia alumina catalysts could greatly suppress the coke formation. | Huahua Zhao Huanling Song Zhichao Miao Lingjun Chou | 2014 | Journal of Energy Chemistry2014，23，6： | 1 |
| 13 | Isobutane dehydrogenation over the mesoporous Cr203/Al:O3 catalysts synthesized from a metal-organic framework MIL-101 显示文摘 | Zhao Huahua Song Huanling Xu Leilei | 2013 | ApplCatal A2013，456，： | 1 |
| 14 | Catalytic behavior of Mo-Bi-Fe-Co-K-M-O(M=Ce,Gd,CeGd)catalysts for selective oxidation of isobutene显示文摘The further improvement of methacrolein(MAL)selectivity from isobutene(IB)oxidation is crucial and challenging.In this study,based on the typical Mo-Bi-Fe-Co-K-O mixed metal oxide,the rare earth element Gd-doped,Ce-doped and CeGd co-doped catalysts were prepared by co-precipitation strategy to increase the selectivity of MAL from 47.9%to 49.8%,64.2% and 68.6%,respectively.In order to elucidate in-depth the promoting effect of Ce and/or Gd,various characterizations were utilized including X-ray diffraction patterns(XRD),Raman,X-ray fluorescence spectrometry(XRF),X-ray photoelectron spectroscopy(XPS),O_(2)-temperature programmed desorption(O_(2)-TPD),H2-temperature programmed reduction(H2-TPR),CO_(2)-temperature programmed desorption(CO_(2)-TPD),IB-temperature programmed desorption(i-C4-TPD)and in-situ IB-Fourier transform infrared spectroscopy(IB-FTIR).Both Ce and Gd finely regulate the bulk and surface structure of the catalyst,thus altering the redox ability,oxygen mobility and storage ability and basicity.Compared with Ce,Gd addition slightly regulates the variation of Co^(2+)/Co^(3+)redox couples,greatly enhances the interaction among the components on the catalyst,thus only increases the content of surface oxygen species and has little effect on their mobility.While Cecontaining catalyst performs stronger oxygen storage and migration ability,thus leading to the overproduction of surface Odefectspecies,which are proposed to be the active sites for the production of MAL and COx.The CeGd co-doped catalyst possesses the proper content of surface Odefectspecies,thus exhibits much higher MAL selectivity.Moreover,the promoting mechanism of Ce and/or Gd over IB oxidation is proposed.Therefore,this work is helpful for understanding the influence of rare earth elements on the structure of mixed metal oxides and the olefin selective oxidation reaction. | Qinghui Li Huahua Zhao Jian Yang Jun Zhao Liang Yan Huanling Song Lingjun Chou | 2024 | Journal of Rare Earths2024，42，1： | 0 |
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