61.02%, 53.3%, 21.4%, 34.96%, and 14.84% for H2SO4, p-TSA, HCl, HI, Dowex 50WX, and Amberlyst 15, respectively, under process temperature of 70 degrees C, reactant molar ratio of 1:1, and catalyst concentration of 2% (v/v) for homogeneous and 2.17 g for heterogeneous catalyst. ...
Early examples of homogeneous hydrogenations involving C–O cleavage of amides were reported by Cole-Hamilton and co-workers using a combination of [Ru(acac)3] and Triphos as catalyst system (Fig.3a)55,56. Later on, the same authors, together with the group of Leitner and Klankermayer, re...
In heterogeneous single-metal-site catalysts (HSMSCs) the active metal centres are located individually on a support and are stabilized by neighbouring surface atoms such as nitrogen, oxygen or sulfur. Modern characterization techniques allow the identif
Non Catalytic Transesterification of Vegetables Oil to Biodiesel in Sub-and Supercritical Methanol: A Kinetic's Study studied the kinetics of transesterification reaction with homogeneous (acid / base) catalyst; heterogeneous catalyst and catalyst-free on supercritical methanol... NP Asri,S Machmudah,W...
The diversity of catalysts is large and encompasses all the known categories of catalyst type: homogeneous, heterogeneous, and biological. This book summarizes the current status in these fields concentrating on rates, kinetics, and reaction mechanisms, but also covers broad topics including modeling, ...
Heterogeneous rhodium and ruthenium catalysts supported on activated carbon were studied in the liquid phase hydrocarbonylation of methanol. The activity and selectivity of the catalysts were determined and compared with the respective homogeneous metal precursors. The stability of the catalysts were determin...
Thisreview provides an overview of this fast-growing research field andencourages more studies toward the rational design of catalysts forelectrochemical N2 reduction to NH3 under ambientconditions. 展开 关键词: biological catalysts heterogeneous catalyst homogeneous catalyst ammonia synthesis electrochemical...
Synthesis of Biodiesel from Canola Oil Using Heterogeneous Base Catalyst A series of alkali metal (Li, Na, K) promoted alkali earth oxides (CaO, BaO, MgO), as well as K2CO3 supported on alumina (Al2O3), were prepared and used as... A D’Cruz,MG Kulkarni,LC Meher,... - 《Journal...
Homogeneous - heterogeneous catalyst system for po 专利名称：Homogeneous - heterogeneous catalyst system for polyolefins 发明人：Shamshoum, Edwar S.,Reddy, Baireddy R.,Elder, Michael J.,Rauscher, David J.申请号：EP92870154.9 申请日：19920923 公开号：EP0536104A1 公开日：19930407 专利内容由知识...
To find the suitable combination of homogeneous and heterogeneous catalysts, we screened different catalytic systems in CO2 hydrogenation (Table 1). The reaction could proceed efficiently over the RuCl3/Ru0 catalyst with LiCl as the cocatalyst and LiI as the promoter in 1-methyl-2-pyrrolidinone (...