Methanol partial oxidation over palladium-, platinum-, and rhodium-integrated LaMnO 3 perovskites

Chia Liang Li, Yu Chuan Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study investigates methanol partial oxidation over LaMnO 3 and LaMn 0.95B 0.05O 3 (B=Pd, Pt, and Rh) perovskites. Their bulk and surface properties were characterized by appropriate physiochemical techniques including BET surface area measurement, XRD, EDS, XPS, H 2-TPR, O 2-TPD, and CH 3OH-TPD. The characterizations showed significant differences of reducibility and oxygen activity between promoted and untainted LaMnO 3. Such deviants resulted in diverse catalytic behaviors in methanol partial oxidation. Promoted perovskites showed higher reactivity than pure LaMnO 3. Moreover, the redox chemistry was proposed to enhance partial oxidation route to formaldehyde while oxygen activity, particularly surface chemisorbed oxygen, played a central role in combustion. Accordingly, plausible reaction mechanism of methanol partial oxidation over LaMnO 3 based perovskites was elucidated.

Original languageEnglish
Title of host publication11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
Publication statusPublished - 2011 Dec 1
Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States
Duration: 2011 Oct 162011 Oct 21

Publication series

NameAIChE Annual Meeting, Conference Proceedings

Other

Other2011 AIChE Annual Meeting, 11AIChE
CountryUnited States
CityMinneapolis, MN
Period11-10-1611-10-21

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemistry(all)

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