Enhancing H₂ and CO Production from Glycerol Using Bimetallic Surfaces

Reforming of Oxygenates for H2 Production on 3d/Pt(111) Bimetallic Surfaces

“…The availability of more weakly bonded adsorbates such as hydrogen and unsaturated hydrocarbons can lead to increased low temperature hydrogenation activity. In contrast, the 3d-Pt-Pt(111) surfaces are characterized by increased interactions with adsorbates [29,[41][42][43]. This can lead to an increase in activity for bond scission reactions, advantageous for the reforming of oxygenates.…”

“…Using both experiments [28-30, 32, 33] and DFT modeling [29,35,38], decreased interaction with various adsorbates have been observed for the Pt-3d-Pt(111) surfaces. The adsorbates that were studied included atomic species such as H [29,30] and O [39], unsaturated hydrocarbons such as ethylene [28], 1-butene [40], 1-hexene [40] and cyclohexene [28,30,31,40], oxygenates, such as methanol [41], ethanol [42], ethylene glycol [42] and glycerol [43], and more complex species such as acrolein [44] and thiophene [33]. The availability of more weakly bonded adsorbates such as hydrogen and unsaturated hydrocarbons can lead to increased low temperature hydrogenation activity.…”

Catalysis Center for Energy Innovation for Biomass Processing: Research Strategies and Goals

“…For example, Fig. 3 shows the recent surface science and theoretical studies of ethanol, ethylene glycol and glycerol on Pt(111), Ni(111) and two bimetallic surfaces structures, surface Ni-Pt-Pt(111) and subsurface Pt-Ni-Pt(111) [18]. Surface science results reveal that glycerol reacts on Pt(111) and Ni/Pt(111) surfaces to form H 2 and CO as gaseous products.…”

“…Correlation of experimentally measured reforming yield and theoretically predicted d-band center on Pt-Ni monometallic and bimetallic surfaces (from[18])…”

Chemistry of Ethylene Glycol on a Rh(100) Single‐Crystal Surface

“…Several surface science studies on the reaction and decomposition of the related single alcohol ethanol on group VIII metals are available, for example Ni, [2][3][4][5] Pd, [6][7][8][9] Ir, [10] Pt, [4,[11][12][13][14][15][16][17] and Rh, [18][19][20][21] but research on ethylene glycol is scarce (e.g., Ni, [22] Pt, [4,16,17] and Rh [23] ). The surface chemistry of ethanol provides insight into what may be expected for ethylene glycol.…”