Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization

Peng Bai*, Rooh Ullah, Pengyun Liu, Bowen Liu, U. J. Etim, Pingping Wu, Wei Xing, Youhe Wang, Zhen Liu, Jun Li, Zifeng Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In this study, nanoporous ZnO-Al2O3 mixed oxides (MO) were synthesized via a copolymer assisted self-assembly method and used as the catalyst support for the reactive adsorption desulfurization of model fuel. The as-synthesized Ni/ZnO-Al2O3 adsorbents were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, scanning electron microscopy (SEM), and H2-temperature programed reduction (TPR). Results revealed that with the increase in Ni loading, the Ni-Al2O3 interaction increases significantly compared with Zn-Al2O3, resulting in the ion exchange between Ni2+ and Zn2+ on alumina framework. This phenomenon affords free ZnO with high Ni concentration for higher sulfur capture capacity. Among tested adsorbents, 12%Ni/ZnO-Al2O3 showed the best desulfurization performance by achieving a breakthrough volume of up to 63 mL of a high sulfur concentration feed, corresponding to 108.8 mg S/g sulfur adsorption capacity, which is 76% higher than that of 7%Ni/ZnO-Al2O3 sample. Moreover, the RADS mechanism on Ni/ZnO-Al2O3 adsorbent is also proposed and discussed.

Original languageEnglish
Pages (from-to)931-937
Number of pages7
JournalNanoscience and Nanotechnology Letters
Volume8
Issue number11
DOIs
StatePublished - Nov 2016
Externally publishedYes

Keywords

  • Adsorbent
  • Mesoporous
  • Mixed oxide
  • Reactive adsorptive desulfurization
  • Thiophene

Fingerprint Dive into the research topics of 'Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization'. Together they form a unique fingerprint.

Cite this