Various transient isotopic methods have been used to study the CO/H2 reaction over 2.5 wt% Rh/MgO catalyst at temperatures in the range 493–573 K. The steady-state tracing method permits the determination of the surface coverage of CO and that of the very active carbon Cα. The results ...
The actual catalyst is a NiFe or Fe metallocomplex encased in a protein. Tunnels in the protein allow H2 to access or egress from the active site. A series of FeS clusters form an electrical circuit connecting the active site with binding sites (for cytochromes, pyridine nucleotides, and ...
CO,H2及H2O在Co/SiO2催化剂上吸附的原位红外光谱 m’I归属于端基C0暖附}2120cm 归属于C0在牯离予上的暖附,18T0cm’I为C0的桥式哑附,1720cm’I则为多中心吸附.当温度高于 3’10K时.哑附的CO会完垒脱.Ht与暖甜的CO相互作用可削弱CO 暖收峰的叠度,并鼍步在氍披散 (1g80cm’)处产生一个小肩々木与...
CO inhibition was strongly dependent on the nature of the support. The standard Pt/C electrocatalyst was the least CO-tolerant catalyst among those tested, while Pt–Sn/C, as well as Pt and Rh supported on MoO 3 and TiO 2-based carriers were the most active and CO-tolerant catalysts. ...
This indicates that the mechanism of olefin transformation in this work is different from that accelerated by Rh catalyst18. As shown in Fig. 3, CO was in situ generated in the reaction. The control test without THF affirmed that CO was produced from CO2 via RWGS reaction (Supplementary Fig...
supportedcatalyst , hydrogen , carbonmonoxide , adsorption , desorption 研究 ~ 2 对 CO 吸附和脱附的影响对了解 CO 加氢反应无疑是非常重要的 . 通常认为, CO 在 Rh / SiO 2 上有 3 种吸附形式: Rh 0 位上的线式吸附 Rh- CO ,其红外吸收谱带位于 2060cm 1 附近; Rh 0 位 上的桥式吸附 Rh ...
ChemInform Abstract: Selective Formation of Lower Alkenes and Alcohols in CO + H2 Reaction Catalyzed on NaY Zeolite-Encapsulated Rh6 and RhFe Bimetallic ... LF Rao,A Fukuoka,M Ichikawa - 《Cheminform》 被引量: 12发表: 1988年 ChemInform Abstract: Conjugated Addition Reaction of Amine, Carbon Di...
methaneconversionandhydrogenselectivity,andrealizedtheco-productionofH-2CNTs.Itprovidestheoreticalbasisanddatasupportforrealizingtheprocesspathofproducinghydrogenfrommethanewithlowcarbonandhighefficiency.Keywords:CHcracking;Plasma;Hproduction;Carbonnanotubes;Nicatalyst42...
The formation of CNFs begins with the adsorption of hydrocarbons on the surface A of catalyst particles B. In the presence of the catalyst, carbon-carbon bonds break, releasing free carbon atoms. These atoms subsequently diffuse to the interface C between the catalyst particles and the platelets...
Time Decay of the Activity of the Reduction Reaction of NO by CO on a Pd/Al 2 O 3 Catalyst An experimental study is made of the time decay of activity of the CO–NO reaction on a Pd/Al2O3 looking at the effect on reaction order and apparent activ... J Cortés,E Valencia,G Agui...