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65篇 您的检索式:作者名="Emiel"
    题名 作者 年代 出处 被引量
1Particle Size and Crystal Phase Effects in Fischer-Tropsch Catalysts显示文摘费托合成(FTS)是近年来越发重要的能源转化途径,它可将一氧化碳和氢气的合成气转化为液态燃料和化学品,合成气的原料来自煤炭、天然气或生物质。在费托合成反应中,分散的过渡金属纳米粒子作为催化剂,用于催化以碳-碳键生成为基础的反应。催化剂的催化活性和选择性与纳米粒子的电子结构和几何结构密切相关,具体取决于纳米粒子的尺寸、形态和晶相。在本文中,我们将回顾近期关于费托合成反应催化剂的体相和表面敏感性方面的工作。通过深入理解以上参数对不同催化剂行为的影响,有助于指导设计开发出更高活性、稳定性以及更优选择性的催化剂。Jin-xun Liu Peng Wang Wayne Xu Emiel J. M. Hensen 2017Engineering2017,3,4:7
2α-Fe_(2)O_(3)形貌对Au/α-Fe_(2)O_(3)催化一氧化碳氧化反应性能的影响显示文摘负载型纳米金催化剂由于其独特的化学性质在一系列氧化反应中受到广泛关注.其中,一氧化碳氧化不仅在实际应用领域(如汽车尾气处理)发挥重要作用,而且作为一种理想的模型反应用以深入研究和理解催化剂的构效关系.为了获得高效的纳米金催化剂,我们需要把金负载到载体上,载体不仅为金的分散提供必要的表面,而且还会和金产生相互作用,这种金属-载体相互作用对金的氧化态,金颗粒大小及其热稳定性均有重要影响.金属氧化物是负载金最常用的载体.为了提高纳米金催化剂的性能,需要调变金属氧化物的性质.常用的策略是调控金属氧化物的组成、晶相以及晶粒大小.此外,对金属氧化物的形貌进行精细调控也是一种重要的方法,因为具有不同形貌的氧化物可能会暴露出不同的晶面,而且可能具有不同的缺陷位点.α-Fe_(2)O_(3)是一种热稳定性强而且对环境友好的载体,可是有关其形貌对负载金催化剂在一氧化碳氧化反应中性能影响的研究尚不充分.因此,本文采用水热法合成了具有纳米球和纳米棒两种形貌的氧化铁,并采用沉积-沉淀的方法将金纳米颗粒负载于其表面.高分辨透射电镜照片显示,和氧化铁纳米球(α-Fe_(2)O_(3)(S))相比,氧化铁纳米棒(α-Fe_(2)O_(3)(R))的表面更为粗糙,具有更多的缺陷位点.Au和α-Fe_(2)O_(3)(R)之间有更强的金属载体相互作用,导致纳米棒氧化铁上的金纳米颗粒更小而且多呈半球形.相比之下,纳米球氧化铁上的金纳米颗粒较大,多呈球形,且分布不均匀.反应结果表明,Au/α-Fe_(2)O_(3)(R)具有更高的一氧化碳氧化活性.对反应后的催化剂进行表征发现,Au/α-Fe_(2)O_(3)(R)上金颗粒烧结程度较低,平均粒径从1.5增至2.4 nm,而Au/α-Fe_(2)O_(3)(S)上金颗粒烧结较为严重,平均粒径从2.0 nm增加到4.0 nm.氢气程序升温还原结果表明,Au/α-Fe_(2)O_(3)(R)具有更强的还原性,这也促进了其催化活性的提高.Yanan Gao Fu-Kuo Chiang Shaojie Li Long Zhang Peng Wang Emiel J.M.Hensen 2021Chinese Journal of Catalysis2021,42,4:5
3用于甲烷芳构化的Mo/HZSM-5催化剂的活化(英文)显示文摘The effect of Mo/HZSM-5 pretreatment at 973 K in inert(He), oxidizing(artificial air), and carburizing(CH4/He mixture) atmospheres on its performance in non-oxidative methane dehydroaromatization(MDA) was investigated. The effect of post-synthesis silylation on deactivation of external acid sites was also studied. Precarburization resulted in increased aromatic selectivity and improved catalyst stability. The benzene selectivity was the highest for the silylated Mo/HZSM-5 catalyst(benzene + naphthalene selectivity after 1 h on stream was close to 100%). The deactivation of precarburized zeolites was less pronounced than that of zeolites heated in air or He. During heating in air or He, larger fractions of the molybdenum oxide species diffused into the micropores than during heating in methane. Carburization of the molybdenum oxide species in the micropores during MDA resulted in the formation of molybdenum carbide particles, and these contributed to pore blocking, making the Brnsted acid sites inaccessible. The formation of molybdenum carbides during heating in methane resulted in a less mobile Mo phase. It is argued that the presence of molybdenum carbide particles in the micropores contributes to rapid catalyst deactivation, in addition to the formation of hard coke on the external surface.Christiaan H.L.Tempelman Xiaochun Zhu Emiel J.M.Hensen 2015催化学报2015,36,6:4
4Stability of heterogeneous single-atom catalysts:a scaling law mapping thermodynamics to kinetics显示文摘Heterogeneous single-atom catalysts(SACs)hold the promise of combining high catalytic performance with maximum utilization of often precious metals.We extend the current thermodynamic view of SAC stability in terms of the binding energy(E_(bind))of singlemetal atoms on a support to a kinetic(transport)one by considering the activation barrier for metal atom diffusion.A rapid computational screening approach allows predicting diffusion barriers for metal-support pairs based on Ebind of a metal atom to the support and the cohesive energy of the bulk metal(E_(c)).Ya-Qiong Su Long Zhang Yifan Wang Jin-Xun Liu Valery Muravev Konstantinos Alexopoulos Ivo A.W.Filot Dionisios G.Vlachos Emiel J.M.Hensen 2020npj Computational Materials2020,,1:2
5Hierarchically structured Fe/ZSM-5 as catalysts for the oxidation of benzene to phenol显示文摘Arjan J.J. Koekkoek Hongchuan Xin Qihua Yang Can Li Emiel J.M. Hensen 2011Microporous and Mesoporous Materials2011,,1:2
6Why clays swell 显示文摘HENSEN EMIEL J M BEREND SMIT 2002J Phys Chem B2002,106,12:1
7Cluster model DFT study of the intermediates of benzene to phenol oxidation by N2O on FeZSM-5 zeolites显示文摘NELLY A K GEORGII M Z EMIEL J M 2003Catalysis Letters2003,86,:1
8Systemic inflammation in chronic obstructive pulmonary disease 显示文摘Emiel F M Karin H G Mieke A D 2007Proc Am Thorac Soc2007,4,8:1
9Effect of dialysate calcium concentration on intradialytic blood pressure course in cardiaccompromised patients显示文摘Frank M van Sande Emiel C 1998Am J Kidney Dis1998,32,1:1
10Sentinel Node Biopsy Before Neoadjuvant Chemotherapy Spares Breast Cancer Patients Axillary Lymph Node Dissection显示文摘Maartje C. van Rijk MD Omgo E. Nieweg MD PhD Emiel J. T. Rutgers MD PhD FRCS Hester S. A. Oldenburg MD PhD Renato Valdés Olmos MD PhD Cornelis A. Hoefnagel MD PhD Bin B. R. Kroon MD PhD FRCS 2006Annals of Surgical Oncology2006,,4:1
11Research Trends in Fischer-Tropsch Catalysis for Coal to Liquids Technology显示文摘Fischer–Tropsch Synthesis(FTS) constitutes catalytic technology that converts synthesis gas to synthetic liquid fuels and chemicals.While synthesis gas can be obtained from any carbonaceous feedstock,current industrial FTS operations are almost exclusively based on natural gas.Due to the energy structure of China where cheap coal is abundant,coal to liquids(CTL) technology involving coal gasification,FTS and syncrude upgrading is increasingly being considered as a viable option to convert coal to clean transportation fuels.In this brief paper,we review some pertinent issues about Fe-and Co-based FTS catalysts.Fe is better suited to convert synthesis gas derived from coal gasification into fuels.The authors limit themselves to noting some important trends in the research on Fe-based catalysts.They focus on the preparation of phase-pure carbides and innovative cheap synthesis methods for obtaining active and stable catalysts.These approaches should be augmented by(1) computational investigations that are increasingly able to predict not only mechanism,reaction rates and selectivity but also optimum catalyst composition,as well as(2) characterization of the catalytic materials under conditions close to the operation in real reactors.Emiel J.M.Hensen Peng Wang Wayne Xu 2016Frontiers of Engineering Management2016,3,4:1
12Enno Masurel Entrepreneurial motivation in a least developed country:push factors among MSEs in Uganda显示文摘Emiel L Eijdenberg 2013Journal of Enterprising Culture2013,,21:1
13Progression of osteoporosis in patients with COPD: A 3-year follow up study显示文摘Lidwien Graat-Verboom Frank W.J.M. Smeenk Ben E.E.M. van den Borne Martijn A. Spruit Frits H. Jansen Joris W.T. van Enschot Emiel F.M. Wouters 2012Respiratory Medicine2012,,6:1
14Lymphatic mapping and sentinel lymph node biopsy in breast cancer显示文摘Omgo E. Nieweg Liesbeth Jansen Renato A. Valdés Olmos Emiel J. T. Rutgers Johannes L. Peterse Kees A. Hoefnagel Bin B. R. Kroon 1999European Journal of Nuclear Medicine1999,,1:1
15Accuracy of 18F-FDG PET/CT for primary tumor visualization and staging in T1 breast cancer显示文摘Bas B. Koolen Femke van der Leij Wouter V. Vogel Emiel J. Th. Rutgers Marie-Jeanne T. F. D. Vrancken Peeters Paula H. M. Elkhuizen Renato A. Valdé s Olmos 2014Acta Oncologica2014,,1:1
16Contrast-enhanced MRI in breast cancer patients eligible for breast-conserving therapy: complementary value for subgroups of patients显示文摘Eline E. Deurloo William F. A. Klein Zeggelink H. Jelle Teertstra Johannes L. Peterse Emiel J. Th. Rutgers Sara H. Muller Harry Bartelink Kenneth G. A. Gilhuijs 2006European Radiology2006,,3:1
17Influence of steaming on the acidity and the methanol conversion reaction of HZSM-5 zeolite显示文摘Sami M.T. Almutairi Brahim Mezari Evgeny A. Pidko Pieter C.M.M. Magusin Emiel J.M. Hensen 2013Journal of Catalysis2013,,:1
18Phosphotungstic Acid Encapsulated in Metal–Organic Framework as Catalysts for Carbohydrate Dehydration to 5‐Hydroxymethylfurfural显示文摘YanmeiZhang VolkanDegirmenci CanLi Emiel J. M.Hensen 2011ChemSusChem2011,,1:1
19FCCP nutrition and metabolism in COPD显示文摘Emiel FM Wouters MD 2000Chest2000,117,:1
20Sentinel Node Identification Rate and Nodal Involvement in the EORTC 10981-22023 AMAROS Trial显示文摘Marieke E. Straver Philip Meijnen Geertjan Tienhoven Cornelis J. H. Velde Robert E. Mansel Jan Bogaerts Nicole Duez Luigi Cataliotti Jean H. G. Klinkenbijl Helen A. Westenberg Huub Mijle Marko Snoj Coen Hurkmans Emiel J. T. Rutgers 2010Annals of Surgical Oncology2010,,7:1
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