An In Situ XAS Study of the Cobalt Rhenium Catalyst for Ammonia Synthesis [0.03%]
原位X射线吸收光谱研究氨合成催化剂Co/Rh的构效关系
Karina Mathisen,Karsten Granlund Kirste,Justin S J Hargreaves et al.
Karina Mathisen et al.
A cobalt rhenium catalyst active for ammonia synthesis at 400 °C and ambient pressure was studied using in situ XAS to elucidate the reducibility and local environment of the two metals during reaction conditions. The ammonia reactivity is...
The Role of Catalyst Support, Diluent and Co-Catalyst in Chromium-Mediated Heterogeneous Ethylene Trimerisation [0.03%]
铬介导的乙烯三聚化异相催化的助催化剂、稀释剂和共催化剂的作用
M J Lamb,D C Apperley,M J Watson et al.
M J Lamb et al.
Sequential treatment of a previously-calcined solid oxide support (i.e. SiO2, γ-Al2O3, or mixed SiO2-Al2O3) with solutions of Cr{N(SiMe3)2}3 (0.71 wt% Cr) and a Lewis acidic alkyl aluminium-based co-catalyst (15 molar equivalents) affords ...
Reactions of Dimethylether in Single Crystals of the Silicoaluminophosphate STA-7 Studied via Operando Synchrotron Infrared Microspectroscopy [0.03%]
利用同步辐射红外显微技术研究分子筛STA-7单晶中二甲醚的反应性能
Russell F Howe,Suwardiyanto,David J Price et al.
Russell F Howe et al.
Abstract: Synchrotron infrared micro-spectroscopy has been applied to measure in situ the reaction of dimethylether in single crystals of the silicoaluminophosphate STA-7. The crystals are found to contain a uniform and h...
Operando Spectroscopic Studies of Cu-SSZ-13 for NH3-SCR deNOx Investigates the Role of NH3 in Observed Cu(II) Reduction at High NO Conversions [0.03%]
原位光谱研究负载铜分子筛Cu-SSZ-13在NH3-选择性催化还原(SCR)脱硝反应中不同浓度的NO和NH3气氛下，高转化率时Cu物种变化及表面储氨物种的作用
Alex G Greenaway,Ines Lezcano-Gonzalez,Miren Agote-Aran et al.
Alex G Greenaway et al.
The small pore zeolite chabazite (SSZ-13) in the copper exchanged form is a very efficient material for the selective catalytic reduction by ammonia (NH3) of nitrogen oxides (NOx) from the exhaust of lean burn engines, typically diesel powe...
Effect of Particle Size and Support Type on Pd Catalysts for 1,3-Butadiene Hydrogenation [0.03%]
粒径和担体类型对丁二烯选择加氢催化剂性能的影响
Donato Decarolis,Ines Lezcano-Gonzalez,Diego Gianolio et al.
Donato Decarolis et al.
Pd nanoparticles supported on SiO2, Si3N4 and Al2O3 were studied to examine the effect of particle size and support type on the hydrogenation of 1,3-butadiene. Pd nanoparticles were produced using a reverse micelle method resulting in parti...
AMnO3 (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts [0.03%]
用作氧还原电催化剂的AMnO3(A= Sr，La，Ca，Y)钙钛矿氧化物
V Celorrio,L Calvillo,G Granozzi et al.
V Celorrio et al.
A series of perovskite-type manganites AMnO3 (A = Sr, La, Ca and Y) particles were investigated as electrocatalysts for the oxygen reduction reaction. AMnO3 materials were synthesized by means of an ionic-liquid method, yielding phase pure ...
Solvent Free Synthesis of PdZn/TiO2 Catalysts for the Hydrogenation of CO2 to Methanol [0.03%]
二氧化碳加氢合成甲醇的PdZn/TiO2催化剂的无溶剂制备方法研究
Hasliza Bahruji,Jonathan Ruiz Esquius,Michael Bowker et al.
Hasliza Bahruji et al.
Catalytic upgrading of CO2 to value-added chemicals is an important challenge within the chemical sciences. Of particular interest are catalysts which are both active and selective for the hydrogenation of CO2 to methanol. PdZn alloy nanopa...
The Chemical Evolution of the La0.6Sr0.4CoO3-δ Surface Under SOFC Operating Conditions and Its Implications for Electrochemical Oxygen Exchange Activity [0.03%]
掺锶 lan_0.6 sr_0.4 coo_3-δ 表面在固体氧化物燃料电池工作条件下的化学演化及其对电化学氧交换活性的影响
Alexander K Opitz,Christoph Rameshan,Markus Kubicek et al.
Alexander K Opitz et al.
Owing to its extraordinary high activity for catalysing the oxygen exchange reaction, strontium doped LaCoO3 (LSC) is one of the most promising materials for solid oxide fuel cell (SOFC) cathodes. However, under SOFC operating conditions th...
The Role of Adsorbed and Subsurface Carbon Species for the Selective Alkyne Hydrogenation Over a Pd-Black Catalyst: An Operando Study of Bulk and Surface [0.03%]
负载型和非负载型钯黑催化剂选择性加氢反应过程中碳物种的原位表征
J J Velasco-Vélez,D Teschner,F Girgsdies et al.
J J Velasco-Vélez et al.
The selective hydrogenation of propyne over a Pd-black model catalyst was investigated under operando conditions at 1 bar making use of advanced X-ray diffraction (bulk sensitive) and photo-electron spectroscopy (surface sensitive) techniqu...
Investigating the Influence of Fe Speciation on N2O Decomposition Over Fe-ZSM-5 Catalysts [0.03%]
研究Fe形态对Fe-ZSM-5催化剂上N₂O分解的影响
Nia Richards,Ewa Nowicka,James H Carter et al.
Nia Richards et al.
The influence of Fe speciation on the decomposition rates of N2O over Fe-ZSM-5 catalysts prepared by Chemical Vapour Impregnation were investigated. Various weight loadings of Fe-ZSM-5 catalysts were prepared from the parent zeolite H-ZSM-5...