Highly stable barium zirconate supported nickel oxide catalyst for dry reforming of methane: From powders toward shaped catalysts

Role of Ca, Cr, Ga and Gd promotor over lanthana‐zirconia–supported Ni catalyst towards H2‐rich syngas production through dry reforming of methane

“…In 5 wt.% Ni impregnated 8 wt% CaO‐ZrO 2 support (prepared by polymerization method) catalyst, CaO made intimate contact with Ni causing reducibility of metallic Ni 20 100 g catalyst had shown 74% CH 4 conversion, 82% CO 2 conversion, 0.78 H 2 /CO ratio, 3 × 10 3 H 2 molar production with 36 L g −1 h −1 WHSV in 350 min at 800°C. A deep literature report on a series of the catalyst system in terms of CH 4 conversion, CO 2 conversion, H 2 /CO ratio on different reaction conditions is shown in Table 12,15,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47 . Potassium (K) promotional addition was marked for increasing the mesoporosity and reducibility of the catalyst, 41 Na addition for raising the basicity as well as the formation of strong interacting Ni species (NiO x H y ), 42 Ba addition for the formation of barium zirconate which stabilizes the NiO x species strongly over the surface against agglomeration 43 and Mg addition for increasing the basicity as well as reducible NiO‐MgO solid solution in favour of DRM 48 …”

Atomic Layer Deposition for Preparation of Highly Efficient Catalysts for Dry Reforming of Methane

“…In terms of practical application of heterogeneous catalysts, ALD is regarded to be less effective for mass-scale production of catalysts, even if its use can produce various interesting catalyst structures which are otherwise difficult to achieve. In order to overcome the disadvantages of ALD for mass production, methods such as temperature-regulated chemical vapor deposition have been developed and considered for preparing heterogeneous catalysts, whose structures are comparable to those prepared by ALD [109][110][111][112][113]. ALD is probably not a method which can be ultimately used in the mass production of heterogeneous catalysts, yet studies of ALD-prepared catalysts can shed light on the structure-function relationship in heterogeneous catalysts owing to the ability of ALD to finely tune the structure of catalysts.…”

Embedding Pt‐SnO Nanoparticles into MIL‐101(Cr) Pores: Hydrogen Production with Low Carbon Monoxide Content from a New Methanol Steam Reforming Catalyst

“…On the other hand, since the distribution of the catalyst on the monolith reactor is more uniform, the interaction of the catalyst with feed increases to a great extent; consequently, better performance of the MSR process can be achieved . Conversely, in a fixed‐bed reactor, most of the catalyst remains practically unusable due to the inappropriate mass transfer process, and most importantly a better dispersion of the catalyst on the monolithic reactor decreases the amount of coke nucleation and raises the catalyst stability …”