Hydrogenolysis of glycerol with in-situ produced H2 by aqueous-phase reforming of glycerol using Pt-modified Ir-ReOx/SiO2 catalyst

Shiyang Liu, Masazumi Tamura, Zheng Shen, Yalei Zhang, Yoshinao Nakagawa, Keiichi Tomishige

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

We found that Pt-modified Ir-ReOx/SiO2 acted as an effective catalyst for aqueous phase reforming (APR) and selective C-O hydrogenolysis of glycerol without external hydrogen sources at low temperature of 463 K, and that 0.5 wt% loaded Ir-ReOx/SiO2 (Pt(0.5)-Ir-ReOx/SiO2) provided 1,2-propanediol (1,2-PrD) and acetol in high total yield of 53% at 81% conversion. The initial activity (TOFinitial) over Pt(0.5)-Ir-ReOx/SiO2 at 463 K was estimated to be 13 h−1. Pt-Ir alloy and Ir-ReOx species in Pt-Ir-ReOx/SiO2 are main active species for APR and selective C-O hydrogenolysis, respectively, and the high yield can be achieved by balancing the APR and hydrogenolysis activities through the optimization of Pt and Ir-ReOx molar ratio.

Original languageEnglish
Pages (from-to)106-116
Number of pages11
JournalCatalysis Today
Volume303
DOIs
Publication statusPublished - 2018 Apr 1

Keywords

  • Aqueous phase reforming
  • Glycerol
  • Hydrogenolysis
  • Iridium
  • Platinum
  • Rhenium

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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