Gold mesocauliflowers as catalyst for the hydrogenation of acetone to isopropanol

Vivi Fauzia, Rahmi Karmelia, Liszulfah Roza, Mas Ayu Elita Hafizah

Research output: Contribution to journalArticlepeer-review

Abstract

For thirty years, gold (Au) has been widely investigated as a heterogeneous nanocatalyst that greatly depends on shape and size. A very limited number of scientific articles report on the use of Au-based nanostructures for hydrogenation of acetone. In this study, Au catalysts were grown directly on ITO-coated glass substrates via a seed-mediated growth method. The shape and size of Au catalysts were manipulated through the composition of surfactants of β-cyclodextrin and DTAB. The results show that the use of higher β-cyclodextrin concentration produces Au polycrystalline mesocauliflowers with an average diameter 270 nm and (111) crystal plane as a preferred orientation growth. This morphology may provide a greater active surface area, as the sites for hydrogen and acetone adsorption reach the highest acetone conversion rate of 27.6% to isopropanol.

Original languageEnglish
Article number084002
JournalMaterials Research Express
Volume6
Issue number8
DOIs
Publication statusPublished - 8 May 2019

Keywords

  • catalysis
  • gold
  • hydrogenation
  • mesocauliflowers

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