[duplicate] We know that methanol is slightly more acidic than water, because water's ability to donate a proton as an acid is reduced due to extensive hydrogen bonding. [...] [...] It is very clear that methoxi.. Distillation of methanol and water - Temperature Change We tried the ...
FUNCTIONAL groupsGAS absorption & adsorptionHYDROGEN bonding interactionsCARBONYL groupIn order to investigate the optimal nitrogen functional group and the most suitable pore size for the efficient adsorptive separation of methanol–acetone mixed vapor, a series of theoretical calculations, including Grand ...
Fig. 1: Synthesis and structure characterizations of x,y-Cu2O/Cu. aSchematic diagram of the in situ dual-doping process for preparing the x,y-Cu2O/Cu catalysts. SEM images ofbbare Cu foam substrate,cAg-Cu2S precursor on Cu foam substrate, anddAg,S-Cu2O/Cu formed at electroreduction time ...
Liquid water, a system intensively studied in the search for a rationale for its unique properties and many unsolved anomalies1, has been long unanimously believed to have a dominating structure with a symmetric "ice-like" tetrahedral coordination assured by the two-donor and two-acceptor bonding ...
This is the result of the chemical nature of the molecules, their sizes, and the relative strengths of the dispersive interactions in small pores in comparison with hydrogen bonding to surface functional groups.doi:10.1080/00268970110110815SALAME, ISSA I....
[H-SPAEBI], formed by the presence ofionic bondingbetween the SO3H groups in SPAES and thebenzimidazolegroups inSPAEBI. Therefore, a physically cross-linked acid–base system was effective enough to reduce water uptake and improve methanol suppression through the membrane, as well as to provide ...
Both C4 and C5 oxygens are hydrogen bonded by the NH1 and NH2 atoms respectively of Arg331, and in addition the C4 oxygen makes a longer hydrogen-bond interaction with the amide NH2 of Asn394 whose amide CO is hydrogen-bonded to its own main-chain NH group. The bonding of the C4 and...
Friedrich M, Ormeci A, Grin Y, Armbruster M (2010) PdZn or ZnPd: charge transfer and Pd–Pd bonding as the driving force for the tetragonal distortion of the cubic crystal structure. Z Anorg Allg Chem 636:1735–1739 CrossRef Zemlyanov D, Aszalos-Kiss B, Kleimenov E, Teschner D,...
adsorption configuration of CO2is both of the O atoms attached to the zirconia regardless of the initial state. Two of the most representative cases are shown in Fig.6and the adsorption free energy are −2.88 eV or −1.42 eV respectively (Fig.6b, c). The bonding and configuration...
Transition metal dichalcogenides, by virtue of their two-dimensional structures, could provide the largest active surface for reactions with minimal materials consumed, which has long been pursued in the design of ideal catalysts. Nevertheless, their str