BROWSE

Related Scientist

Researcher

김경덕
나노물질 및 화학반응 연구단
more info

Flame-made amorphous solid acids with tunable acidity for the aqueous conversion of glucose to levulinic acid

Cited 0 time in webofscience Cited 0 time in scopus
5 Viewed 1 Downloaded
Title
Flame-made amorphous solid acids with tunable acidity for the aqueous conversion of glucose to levulinic acid
Author(s)
Gein Khai Beh; Chang Ting Wang; Kyungduk Kim; Jiangtao Qu; Julie Cairney; Yun Hau Ng; Alicia Kyoungjin An; Ryong Ryoo; Atsushi Urakawa.; Wey Yang Teoh
Publication Date
2020-02
Journal
GREEN CHEMISTRY, v.22, no.3, pp.688 - 698
Publisher
ROYAL SOC CHEMISTRY
Abstract
© 2020 The Royal Society of Chemistry.Solid acids of amorphous silica-alumina (a-SA) and amorphous silica-alumina-phosphate (a-SAPO) were prepared by flame spray pyrolysis (FSP). Careful tuning of the acidity of the solid acids was enabled by capitalizing on the advantage of FSP in preserving the metal stoichiometry (i.e., Si, Al, P) in the product nanoparticles. Although the amount of acids on these non-porous solid acids is an order of magnitude lower than the well-recognized strong acidic ZSM-5 zeolite, both exhibit comparable acid strengths. The a-SA and a-SAPO were characterized by a mixture of Brønsted (B) and Lewis (L) acids, and the B/L ratios were composition-tunable. The highest B/L ratios were recorded for a-SA (Al/(Al + Si) = 0.4) and a-SAPO (Si/(P + Si) = 0.25), giving the highest yields of levulinic acid (≥40% carbon yield) from the conversion of glucose in the aqueous phase without requiring the addition of liquid acids or metal halides. Under the same conditions, the almost exclusive Brønsted acid ZSM-5 yielded only 17% levulinic acid. The FSP-made solid acid catalyst exhibited good reusability over at least 4 consecutive runs
URI
https://pr.ibs.re.kr/handle/8788114/7236
ISSN
1463-9262
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
Flame-made amorphous solid acids with tunable acidity for the aqueous conversion of glucose to levulinic acid.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse