Reaction Kinetics, Mechanisms and Catalysis

, Volume 127, Issue 2, pp 669–690 | Cite as

Dependence of the CeO2 morphology in CuO/CeO2 catalysts for the oxidative steam reforming of methanol

  • Srisin Eaimsumang
  • Sivinee Petchakan
  • Apanee LuengnaruemitchaiEmail author


Copper oxide on ceria supports (CuO/CeO2) were investigated as catalysts for the oxidative steam reforming of methanol (OSRM) reaction at 200–400 °C. Different shapes of CeO2 were obtained, as rod-, mixed- (rod and cube) and cube-shaped with an exposed surface of (110) + (100), (110) + (100) and (100) planes by variation in the hydrothermal synthesis temperature (100–220 °C). The CuO was deposited on CeO2 by deposition–precipitation at a nominal 10% by weight and the obtained CuO/CeO2 catalysts were characterized. The morphological structure of CeO2 influenced the catalytic activities in the OSRM reaction. The CuO/rod-shaped CeO2 (CuO/CeO2-R) gave the highest turnover frequency (TOF) and a CO concentration of less than 1% (v/v). The high catalytic performance of CuO/CeO2-R involved the well-dispersed CuO nanoparticles, level of Cu+ species as the active site, improved reducible oxide, number of relative oxygen vacancies and the stronger interaction between CuO and CeO2.


Hydrogen CuO catalyst Hydrothermal temperature Rod-shaped CeO2 OSRM 



The authors acknowledge the contributions and financial support of the following organizations: Chulalongkorn University (CU-GES-60-04-63-03); Thammasat University Research Fund under the Research University Network (RUN) Initiative (No. 8/2560), and Grant for International Research Integration: Chula-Research Scholar, Ratchadaphiseksomphot Endowment Fund, Thailand. The authors thank the Thailand Research Fund (TRF) and National Science and Technology Development Agency (PHD/0237/2558) for the PhD scholarship funding of Ms. Srisin Eaimsumang.

Supplementary material

11144_2019_1570_MOESM1_ESM.docx (2.2 mb)
Supplementary material 1 (DOCX 2212 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.The Petroleum and Petrochemical CollegeChulalongkorn UniversityBangkokThailand
  2. 2.Center of Excellence on Petrochemical and Materials TechnologyChulalongkorn University Research BuildingBangkokThailand
  3. 3.Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC)Chulalongkorn UniversityBangkokThailand

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