A study to initiate development of sustainable Ni/γ-Al₂O₃ catalyst for hydrogen production from steam reforming of biomass-derived glycerol

Abstract

Glycerol steam reforming, a potential technology for hydrogen production in fuel-cell applications, is of great interest to researchers in recent years.

Kinetics of hydrodeoxygenation of octanol over supported nickel catalysts: a mechanistic study

“…26 The intensity of this peak was suppressed gradually with increasing nickel loading indicating reduction of acidity with increasing nickel loading on g-Al 2 O 3 . 26 The ammonia desorption peak appeared at 913 K and above may be due to dehydroxylation of hydroxyl group present in g-Al 2 O 3 . For zeolites, strength and number of acid sites were signicantly more compared to pure g-Al 2 O 3 with characteristic ammonia desorption peaks at 445-461 K and 645-657 K. The intensity of these peaks was enhanced with decreasing Si/Al ratio suggesting increase of number of acid sites with decreasing Si/Al ratio.…”

“…26 The peak observed at 627-650 K for 15NiAl and 20NiAl was due to reduction of bulk nickel oxide possessing no or little interaction with support. 26 TPR prole of bulk nickel oxide further conrms above argument as shown in the same gure. Moreover, intensity of the reduction peaks corresponding to both dispersed and bulk nickel oxide was increased with increasing nickel loading on g-Al 2 O 3 .…”

Anodized Aluminum Oxide Supported NiO-CeO2 Catalyst for Dry Reforming of Propane

“…It is noticed that all the used catalysts invariably showed two distinct bands, one located at 1590-1600 cm −1 and the other at 1380-1400 cm −1 . The former and the latter are ascribed to the amorphous carbon and the graphitic carbon, respectively [41][42][43]. For the 70% NiO-CeO 2 /AAO catalyst, the intensity of the D band is stronger than that of the G band, implying that amorphous carbon is predominant.…”

Nanosized Pt-containing Al2O3 as an efficient catalyst to avoid coking and sintering in steam reforming of glycerol

“…4 The IR curves from TG experiments are included in ESI. A subsequent significant mass loss is observed in the 150-350 C is due to the elimination of interstitial water and combustion of amorphous carbonaceous species originated from glycerol decomposition to other organic by-products that can be adsorbed on the surface covering the active sites, and in some extent blocking the catalyst pores.…”

“…[1][2][3][4] So far, to take full advantage of the benets of hydrogen as a clean energy carrier, economically viable and environmentally friendly low carbon emitting, catalysts for producing hydrogen are needed. [1][2][3][4] So far, to take full advantage of the benets of hydrogen as a clean energy carrier, economically viable and environmentally friendly low carbon emitting, catalysts for producing hydrogen are needed.…”