Decalin ring opening on Pt-Ru/SiO2 catalysts

Decalin Ring Opening on Heterogeneous Me/Saponite Nanocatalysts (Me = Rh, Ru, and Ir)

“…The most commonly used pairs are Ir−Pt, 8−11 Rh− Pd, 12−15 or Ru−Pt. 16 There are some examples in the literature of the use of mono-and bimetallic catalysts based on non-noble metals because commercial SRO catalysts must be sulfur-resistant. Such catalysts contain Ni or Mo carbides in combination with W carbides or sulfides on zeolite or oxide supports.…”

“…Monofunctional catalysts include catalysts based on acidic zeolites, as well as catalysts containing noble metals on oxide supports. 16,25 In bifunctional catalysts, metals are supported on wide-pore zeolites (H-FAU and H-β) with strong Brønsted acidity. Most of the publications are devoted to the study of bifunctional catalysts, 26−30 as well as to the comparison of the mechanisms of the SRO process on mono-and bifunctional catalysts.…”

“…The latter usually contain two noble metals in different ratios on oxide or zeolite supports. The most commonly used pairs are Ir–Pt, − Rh–Pd, − or Ru–Pt …”

Ru‐Pt catalysts supported on Al2O3 and SiO2─Al2O3 for the selective ring opening of naphthenes

“…Monofunctional acid (mainly different kinds of zeolites), monofunctional metallic, and bifunctional catalysts have been proposed for performing the selective ring opening (SRO) …”

“…However, there are only a few studies in the literature that report the opening of two‐ring naphthenes using Ru catalysts. Kustov et al have reported that the addition of Pt to a Ru/SiO 2 catalyst decreases its activity and leads to an increase in the dehydrogenation reaction. Murzin et al have found that platinum was more active than ruthenium for the ring‐opening of decalin.…”