Aqueous phase reforming of glycerol for hydrogen production over Pt–Re supported on carbon

Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance

“…12,32,38 Carbon supports for Pt catalysts in the APR process have recently attracted much scientific attention. Such carbon supports as Vulcan active carbon (Pt 12,32,38,39 and Pt-M, M = Re, Ru, Os, Fe, Cu, Sn, Ir 15 ), activated carbon (Pt, 23,40,41 Pt-Re 42,43 ), carbon fibers (Pt and Pt-Ru), 44 single-walled carbon nanotubes SWNTs (Pt and Pt-Co), [45][46][47][48] ordered mesoporous carbon CMK-3 (Pt, 49 Pt-Mn, 50 Pt-Re 51 ) have been successfully investigated in the APR of polyols. These supports possess high hydrothermal stability under APR conditions (compared to the most investigated catalysts Pt on γ-Al 2 O 3 , where the alumina support might slowly transform into boehmite during water exposure at elevated temperatures and pressures 35,52 ), large surface area and good activity and hydrogen selectivity via APR.…”

Progress in the aqueous-phase reforming of different biomass-derived alcohols for hydrogen production

“…The mechanism of glycerol APR over Pt-based catalysts has been discussed (King et al, 2010;Wawrzetz et al, 2010;Zhang et al, 2012), and the possible reaction pathways are shown in Fig. 3.…”

“…King et al (2010) performed experiments for the APR of glycerol over Pt/C and Pt-Re/C catalysts, and found that adding Re to Pt promoted the conversion of glycerol and H 2 selectivity. It was suggested that Re might have a dual effect on Pt: first, the formation of the Pt-Re alloy led to an increased rate of dehydrogenation and decarbonylation; second, ReO x led to liquid products and alkanes.…”

“…The active phase of the Pt-Re/AC catalyst was Pt-Re alloy and ReO x . King et al (2010) indicated that the Pt-Re alloy acted as a metalfunctionalized site resulting in C-C bond cleavage, and ReO x was intended to promote glyceraldehyde dehydration to produce pyruvaldehyde.…”

“…However, several modifications to Ni catalysts have been reported in recent years to reduce such deactivations (Wen et al, 2008;King et al, 2010;Luo et al, 2010;Guo et al, 2012b). Manfro et al (2011) investigated the influence of the preparation method of Ni-based catalysts supported on CeO 2 in the APR of glycerol (Table 4).…”