|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of Potassium and Manganese Promoters on Nitrogen-Doped Carbon Nanotube-Supported Iron Catalysts for CO_2 Hydrogenation显示文摘氮掺杂碳纳米管(NCNTs)作为载体负载铁(Fe)纳米颗粒,可应用于CO_2多相催化加氢反应(633 K和25 bar)。当将钾(K)和锰(Mn)作为助催化剂时,Fe/NCNT展现出优异的CO_2加氢性能,在体积空速(GHSV)为3.1 L·g^(–1)·h^(–1)时转化率可达34.9%。当使用K作为助催化剂时,反应对烯烃和短链烷烃具有高的选择性。当K和Mn同时作为助催化剂时,其催化活性能够稳定地维持60 h。助催化剂Mn的结构效应通过X射线衍射、氢气程序升温还原以及近边X射线吸收精细结构进行表征。助催化剂Mn不仅能够稳定中间态FeO,且能降低程序升温还原的起始温度。通过探针反应NH3的催化分解来表征助催化剂效应。当K和Mn作为助催化剂时,Fe/NCNT具有最好的催化活性。在还原条件下,当K作为助催化剂时,Fe/NCNT具有最优异的热稳定性。 | Praewpilin Kangvansura Ly May Chew Chanapa Kongmark Phatchada Santawaja Holger Ruland Wei Xia Hans Schulz Attera Worayingyong Martin Muhler | 2017 | Engineering2017，3，3： | 6 |
| 2 | Nickel nanoparticles supported on nitrogen-doped carbon nanotubes are a highly active,selective and stable CO_(2) methanation catalyst显示文摘CO_(2) methanation using nickel-based catalysts has attracted large interest as a promising power-to-gas route.Ni nanoparticles supported on nitrogen-doped CNTs with Ni loadings in the range from 10 wt% to 50 wt% were synthesized by impregnation,calcination and reduction and characterized by elemental analysis,X-ray powder diffraction,H_(2) temperature-programmed reduction,CO pulse chemisorption and transmission electron microscopy.The Ni/NCNT catalysts were highly active in CO_(2) methanation at atmospheric pressure,reaching over 50% CO_(2) conversion and over 95% CH_(4) selectivity at 340℃ and a GHSV of50,000 mL g^(-1) h^(-1) under kinetically controlled conditions.The small Ni particle sizes below 10 nm despite the high Ni loading is ascribed to the efficient anchoring on the N-doped CNTs.The optimum loading of 30 wt%-40 wt% Ni was found to result in the highest Ni surface area,the highest degree of conversion and the highest selectivity to methane.A constant TOF of 0.3 s^(-1) was obtained indicating similar catalytic properties of the Ni nanoparticles in the range from 10 wt%to 50 wt% Ni loading.Long-term experiments showed that the Ni/NCNT catalyst with 30 wt% Ni was highly stable for 100 h time on stream. | Julian Godde Mariia Merko Wei Xia Martin Muhler | 2021 | Journal of Energy Chemistry2021，30，3： | 4 |
| 3 | 甘油氧化的光谱电化学傅里叶变换衰减全反射谱红外光谱薄膜流动池中硼酸镍层厚度的优化显示文摘在碱性甘油电氧化反应中,利用电化学傅里叶变换衰减全反射谱红外光谱法,研究了薄膜流动池中滴注硼酸镍催化剂负载量对玻碳电极性能的影响.连续操作的径向流动池包括一个位于内反射元件上方50μm的钻孔电极,可实现红外光谱分析.这是在确定条件下对电催化剂进行简便和可重复筛选的一个适合的方法,同时还提供了对复杂反应(如甘油氧化)产物选择性的检测.通过对泵送电解液进行更耗时的定量高效液相色谱分析,结果表明,衰减全反射红外光谱法可快速鉴定产物.在层流条件下,水中使用0.1 M甘油和1 M KOH,流速为5μL min^(-1)时,甘油转化率较高.转化率和选择性取决于催化剂的负载量,负载量又决定了催化剂层的厚度和粗糙度.由于在更粗糙的膜中停留时间更长有利于再吸附和C-C键断裂,因此当负载量最高达210μg cm^(-2)时,甘油转化率为73%且甲酸选择性接近80%.当最低负载量为13μg cm^(-2)时,甘油转化率达到63%,甲酸选择性降至60%,相应地,C_(2)物种(如乙醇酸盐)选择性较高,为8%.因此,只有催化剂负载量较低时才能形成几微米厚度范围内的薄膜,此时才适合进行优质催化剂的筛选. | Steffen Cychy Sebastian Lechler Zijian Huang Michael Braun Ann Cathrin Brix Peter Blümler Corina Andronescu Friederike Schmid Wolfgang Schuhmann Martin Muhler | 2021 | Chinese Journal of Catalysis2021，42，12： | 2 |
| 4 | Purified oxygenand nitrogen-modified multi-walled carbon nanotubes as metal-free catalysts for selective olefin hydrogenation显示文摘Oxygen-and nitrogen-functionalized carbon nanotubes (OCNTs and NCNTs) were applied as metal-free catalysts in selective olefin hydrogenation. A series of NCNTs was synthesized by NH3 post-treatment of OCNTs. Temperature-programmed desorption, N2 physisorption, Raman spectroscopy, high-resolution transmission electron microscopy and X-ray photoelectron spectroscopy were employed to characterize the surface properties of OCNTs and NCNTs, aiming at a detailed analysis of the type and amount of oxygenand nitrogen-containing groups as well as surface defects. The gas-phase treatments applied for oxygen and nitrogen functionalization at elevated temperatures up to 600 C led to the increase of surface defects, but did not cause structural damages in the bulk. NCNTs showed a clearly higher activity than the pristine CNTs and OCNTs in the hydrogenation of 1,5-cyclooctadiene, and also the selectivity to cyclooctene was higher. The favorable catalytic properties are ascribed to the nitrogen-containing surface functional groups as well as surface defects related to nitrogen species. In contrast, oxygen-containing surface groups and the surface defects caused by oxygen species did not show clear contribution to the hydrogenation catalysis. | Peirong Chen Ly May Chew Aleksander Kostka Kunpeng Xie Martin Muhler Wei Xia | 2013 | Journal of Energy Chemistry2013，22，2： | 2 |
| 5 | The mi- crokinetics of ammonia synthesis catalyzed by cesium-promoted supported ruthenium显示文摘 | HINRICHSEN O ROSOWSKI E MUHLER M | 1996 | Chem Eng Sci1996，51，10： | 1 |
| 6 | N-doped carbon synthesized from N-containing polymers as metal-free catalysts for the oxygen reduction under alkaline conditions显示文摘 | Anqi Zhao Justus Masa Martin Muhler Wolfgang Schuhmann Wei Xia | 2013 | Electrochimica Acta2013，，： | 1 |
| 7 | The nature of the iron oxide-based catalyst for dehydrogenation of ethylbenzene to styrene显示文摘 | Muhler M Schutze J Wesemann M | 1990 | Journal of Catalysis1990，126，2： | 1 |
| 8 | The nature of the iron oxide based catalyst for dehydrogenation of ethylbenzene to styrene显示文摘 | Schutze J Wesemann M | 1990 | J Catal1990，126，： | 1 |
| 9 | Evolution of the catalytic activity in Pt/sulfated zirconia catalysts:Structure,composition,and catalytic properties of the catalyst precursor and the calcined catalyst显示文摘 | MANOLI J M POTVIN C MUHLER M WILD U RESOFSZKI G BUCHHOLZ T PAL Z | 1998 | J Catal1998，178，1： | 1 |
| 10 | CO Oxidation over Supported Gold Catalysts—“Inert” and “Active” Support Materials and Their Role for the Oxygen Supply during Reaction显示文摘 | Markus M Schubert Stefan Hackenberg Andre C van Veen Martin Muhler Vojtech Plzak R.Jürgen Behm | 2001 | Journal of Catalysis2001，，1： | 1 |
| 11 | Early postoperative ultrasound of kidney transplants : evaluation of contrast medium dynamics using time-intensity curves 显示文摘 | Fischer T Muhler M Kroncke TJ | 2004 | Rofo2004，176，4： | 1 |
| 12 | Tumor characterization with dynamic contrast - enhanced MRI using Mr contrast agents of various molecular weights显示文摘 | Su MY Muhler A Lao X | 1998 | Magn Reson Med1998，39，： | 1 |
| 13 | Au/ZnO as catalyst for methanol synthesis: The role of oxygen vacancies显示文摘 | Jennifer Strunk Kevin Kehler Xinyu Xia Massimiliano Comotti Ferdi Schuth Thomas Reineeke and Martin Muhler | 2009 | Applied Catalysis A: General Volume 359 Issues 1-22009，，： | 1 |
| 14 | The nature of the iron oxide-based catalyst for dehydrogenation of ethylbenzene to styrene显示文摘 | Muhler M Wesemaann M | 1990 | J Catal1990，126，： | 1 |
| 15 | State-of-the-art progress in the selective photo-oxidation of alcohols显示文摘Photocatalytic oxidation of alcohols has received more and more attention in recent years following the numerous studies on the degradation of pollutants, hydrogen evolution, and CO_(2) reduction by photocatalysis. Instead of the total oxidation of organics in the degradation process, the photo-oxidation of alcohols aims at the selective conversion of alcohols to produce carbonyl/acid compounds. Promising results have been achieved in designing the catalysts and reaction system, as well as in the mechanistic investigations in the past few years. This review summarizes the state-of-the-art progress in the photo-oxidation of alcohols, including the development of photocatalysts and cocatalysts, reaction conditions including the solvent and the atmosphere, and the exploration of mechanisms with scavengers experiment, electron paramagnetic resonance (EPR) and diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. The challenges and outlook for the further research in this field are also discussed. | Zewen Shen Yezi Hu Bingfeng Li Yingtong Zou Shaojun Li GWilma Busser Xiangke Wang Guixia Zhao Martin Muhler | 2021 | Journal of Energy Chemistry2021，30，11： | 1 |
| 16 | On the mechanism of the oxidative amination of benzene with ammonia to aniline over NiO/ ZrO2 as cataloreactant 显示文摘 | Hoffmann N Muhler M | 2005 | Catalysis Letters2005，103，12： | 1 |
| 17 | Contrast-enhanced MR imaging of two superparamagnetic RES-contrast agents: functional assessment of experimental radiation-induced liver injury 显示文摘 | Stiskal M Demsar F Muhler A | 1999 | J Magn Reson Imaging1999，10，1： | 1 |
| 18 | Use of state-of- the-art ultrasound techniques in diagnosing sarcoidosis of the salivary glands(Heerfordt's syndrome)显示文摘 | Fischer T Muhler M Beyersdorff D | 2003 | HNO2003，51，5： | 1 |
| 19 | Detection of abnormal aortic elastic properties in asymptomatic patients with Marfan syndrome by combined transoesophageal echocardiography and acoustic quantification 显示文摘 | Franke A Muhler EG Klues HG | 1996 | Heart1996，75，3： | 1 |
| 20 | Electrocatalytic activity and stability of nitrogen-containing carbon nanotubes in the oxygen reduction reaction显示文摘 | Kundu S Nagaia T C Muhler M | 2009 | Journal of Physical Chemistry C2009，113，14： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员