The adsorption and reaction of ethylene glycol and 1,2-propanediol on Pd(111): A TPD and HREELS study

Hydrogen generation by photocatalytic reforming of potential biofuels: Polyols, cyclic alcohols, and saccharides

“…Although most of the decomposition studies were carried out on the Pd model single crystal surfaces in UHV conditions [34][35][36][37][38], we have shown that methanol, ethanol and propanol photocatalytic reaction products mimic the decomposition pattern on the well-defined Pd metal surfaces [21,39]. Studies carried out by Griffin et al on the decomposition of ethylene glycol on Pd showed similar characteristics to methanol decomposition [40]. Ethylene glycol was shown to adsorb on a Pd surface via its oxygen atom followed by elimination of the a-hydroxyl hydrogen resulting the ethylene dioxide [40].…”

“…Studies carried out by Griffin et al on the decomposition of ethylene glycol on Pd showed similar characteristics to methanol decomposition [40]. Ethylene glycol was shown to adsorb on a Pd surface via its oxygen atom followed by elimination of the a-hydroxyl hydrogen resulting the ethylene dioxide [40]. This subsequently underwent CÀ ÀC bond scission and dehydrogenation, producing hydrogen and adsorbed CO.…”

Graph-Based Analysis of Ethylene Glycol Decomposition on a Palladium Cluster

“…This result is in agreement with Griffin et al, whose experimental studies on the reforming of CH2OH−CH2OH on Pd(111), suggested that this process is always characterized by the occurrence of surface species interacting by both the oxygen atoms. 40 For the sake of completeness, it should be said that the previous species, in accordance with the solely energetic criterion should have been excluded because of the limit of the 30 kJ mol −1 ; however, considering the experimental findings above and the fact that the barrier exceeds of few kJ mol −1 the limit, the further decomposition of N6-OO was in any case investigated. The C−O cleavage of N2−O was also analyzed and the corresponding activation barrier, producing N7−OC−O, resulted 181.4 kJ mol −1 .…”

ChemInform Abstract: Reaction Pathways of Biomass‐Derived Oxygenates over Metals and Carbides: From Model Surfaces to Supported Catalysts

“…Ni(1 00)T PRS, [23] AES [23] ethylene glycol Fe/Pt(111)D FT, [49] TPD [49] ethylene glycol Ti/Pt(111)D FT, [49] TPD [49] Rh(1 00)T PR, [63] RAIRS [63] ethylene glycol Cu(110)X PS, [64] UPS, [64] TPD [64] ethylene glycol Pd(111)T PD, [65] HREELS [65] ethylene oxide Pt(111)D FT, [66] TPD, [66] HREELS, [66] UPS [66] ethylene oxide Sn/Pt(111)D FT, [66] TPD, [66] HREELS, [66] UPS [66] furfural Pd(111)D FT, [67] TPD [67a] glycerol Ni/Pt(111)D FT, [45c, 68] TPD, [68] HREELS [68] [42] TPD, [42] HREELS [42] glyceraldehyde Ni/Pd(111)T PD [70] glycoaldehyde Pt(111)D FT, [41] TPD, [17b, 41] HREELS [17b, 41] glycoaldehyde Pd(111)D FT, [42] TPD, [42] HREELS [42] glycoaldehyde Ni/Pd(111)T PD [70] glycoaldehyde Ni/Pt(111)D FT, [71] TPD, [71] HREELS [71] glycoaldehyde Ni/WC DFT, [71] TPD, [71] HREELS [71] glucose Ni/Pd(111)T PD [70] ketene Ru(0 01)T PD, [20] SSIMS, …”

“…Co/Mo(110)T PD, [60] HREELS [60] 1,2-propanediol O/Pd(111)T PD, [79] HREELS [79] 1,2-propanediol Pd(111)T PD, [65] HREELS [65]…”