research
A Silica Shell Taught Nickel When Not to Crack
Regulating surface acidity lifted heptane conversion while suppressing unwanted fuel cracking.
Summary
Regulating surface acidity lifted heptane conversion while suppressing unwanted fuel cracking.
Researchers coated ZSM-5 zeolite with an inert silica shell and then added 2 percent nickel, preserving the pore framework while moderating external acidity. Under optimized laboratory conditions, the core-shell catalyst converted 91.1 percent of n-heptane with 56.7 percent selectivity for isomers. The authors attribute the result to a balance among acidity, mass transport and metal-acid cooperation. It is a controlled catalyst study, not evidence of refinery-scale durability or economics.
Why it matters
Regulating surface acidity lifted heptane conversion while suppressing unwanted fuel cracking.
Limits and context
- Under optimized laboratory conditions, the core-shell catalyst converted 91.1 percent of n-heptane with 56.7 percent selectivity for isomers.
- It is a controlled catalyst study, not evidence of refinery-scale durability or economics.
Key claims
Regulating surface acidity lifted heptane conversion while suppressing unwanted fuel cracking.
Qualification: Under optimized laboratory conditions, the core-shell catalyst converted 91.1 percent of n-heptane with 56.7 percent selectivity for isomers.
Evidence: source-2026-08-04-007
Sources
- Molecules: core-shell nickel ZSM-5 catalystMDPI · secondary reporting
Corrections
No corrections have been recorded for this story.