ChemInform Abstract: Hydrogen Production from Ethanol Catalyzed by Group 8 Metal Complexes.

Abstract

ChemInform Abstract Different strategies for the catalytic thermal production of H2 from ethanol are discussed and demonstrated using various catalysts such as (I)-(IV). The role of base in, and the mechanisms of, these reactions are discussed; as are synergistic effects and reasons for the success of (III) and (IV) as catalysts for hydrogen production.

Current Status of Hydrogen Production Techniques by Steam Reforming of Ethanol: A Review

“…Some other catalysts that have been used for the C 2 H 5 OH steam reforming reaction include Pd/CeO 2 , Pt/CeO 2 , Au/CeO 2 , Pd/Al 2 O 3 , Pt-Pd/ CeO 2 , Cu/Nb 2 O 5 -Al 2 O 3 , Cu-Ni-Al-Zn, NiO-CeO 2 -ZrO 2 , Pd/C, Rh(2,2′-bipyridyl) 2 )Cl, and Group VIII (Fe, Ru, Os)[Rh(bipy) 2 ]Cl. 23,39,47,50,54,59,62,63,77 However, the performance of these catalysts is inferior, compared to all the aforementioned catalysts.…”

“…These include oxide catalysts, 42,57 metal-based (Ni, Cu, Co) catalysts, 14,[41][42][43]45,46,48,49,[58][59][60] metal-mixturebased catalysts; 13,39,61 and noble-metal-based catalysts. 14,23,40,[46][47][48]50,60,[62][63][64] Elemental compounds that had been attempted as catalysts for the ethanol reforming process are also shown in Figure 3 and marked with a circle. The figure shows that most of the catalysts attempted were metals, both base and noble compounds.…”

“…The figure shows that most of the catalysts attempted were metals, both base and noble compounds. Some studies 14,63,78 imply that metals alone do not assist H 2 production significantly. These studies suggest that the performances of metal catalysts could be improved using suitable supporting materials.…”

Conversion of Ethanol via C–C Splitting on Noble Metal Surfaces in Room-Temperature Liquid-Phase

“…1−10 There are considerable efforts on liquid-phase conversion of alcohols at mild conditions since the explorative work by Cole-Hamilton. 11,12 Beller's group developed molecular complexes to decompose methanol into CO 2 and H 2 at low temperatures (65−95 °C) under ambient pressure. 13−15 Intensive efforts have been devoted to developing heterogeneous catalysts for ethanol dissociation in the liquid-phase in the presence of water and/or oxygen gas.…”