n-Pentane hydroisomerization catalyzed by metals supported on nanoscopic aluminum trifluoride

Aluminum Fluoride‐Supported Platinum and Palladium as Highly Efficient Catalysts of n‐Pentane Hydroisomerization

“…Standard activation of catalysts involving postfluorination with CHClF 2 (at 200 8C) and reduction (at 350 8C, 1 h) are described in Ref. [1]. Different activation conditions were also used to check their effect on the behavior of these materials and are indicated in the Results section.…”

“…Synthesis of Pd/HS-AlF 3 and Pt/HS-AlF 3 was performed by using the nonaqueous fluorolytic sol-gel synthesis in dehydrated solvents, described previously, [1] based on reported procedures. [10,11] Briefly, the synthesis proceeded in three steps.…”

“…[7,8] Our recent report revealed very good performances of HSAlF 3 -supported platinum and palladium catalysts in n-pentane hydroisomerization. [1] In spite of its very strong acidity, metalfree HS-AlF 3 does not appear to be a very efficient isomerization catalyst (Figure 4 in Ref. [1]).…”

“…[1] In spite of its very strong acidity, metalfree HS-AlF 3 does not appear to be a very efficient isomerization catalyst (Figure 4 in Ref. [1]). Likewise, platinum supported on less acidic HS-MgF 2 exhibits only moderate isomerization activity.…”

“…Recently we reported preliminary encouraging results of catalytic studies on n-pentane isomerization over high surface area (HS)-AlF 3 -supported palladium and platinum. [1] Those studies were motivated by recent knowledge concerning preparation of nanoscopic aluminum fluoride [2][3][4] characterized by highly specific surfaces, and, remarkably, by outstanding high surface acidity. [5,6] These interesting properties suggest potential applications of HS-AlF 3 in bifunctionally catalyzed reactions, such as hydroisomerization of n-alkanes.…”