Solvent-mediated selectivity control of furfural hydrogenation over a N-doped carbon-nanotube-supported Co/CoOx catalyst

Virendra Ranaware, Rizky Gilang Kurniawan, Deepak Verma, Sang Kyu Kwak, Beom Chan Ryu, Jeong Won Kang, Jaehoon Kim

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


During biomass constituent conversion, solvent choice often plays a critical role in determining product selectivity and reaction pathways. However, the role of the solvent remains poorly understood. In this study, the role of the solvent in furfural (FFA) conversion over a Co/CoOx catalyst supported on N-doped carbon nanotubes (Co/CoOx @N-CNTs) was investigated. In water, cyclopentanone (CPO)/cyclopentanol was produced with high selectivity via Piancatelli rearrangement. In ethanol, tetrahydrofurfuryl alcohol (THFOL) synthesized via furan ring saturation was the major product. The presence of Brønsted acid sites (BASs) in water and the participation of four hydrogen atoms from water molecules promoted FFA conversion via the CPO pathway. By contrast, the absence of BASs in ethanol and the participation of three hydrogen atoms from ethanol molecules resulted in the THFOL pathway being dominant. Furthermore, both thermodynamic properties and oxygen vacancies were found to affect FFA conversion.

Original languageEnglish
Article number121838
JournalApplied Catalysis B: Environmental
Publication statusPublished - 2022 Dec 5

Bibliographical note

Funding Information:
This research was supported by the Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Ministry of Science and ICT ( MSIT ), Republic of Korea (No. 2022M3A9F3017700 ). Additional support from NRF grants funded by MSIT, Republic of Korea is also acknowledged (Nos. 2020R1A2C2003947 and 2020M1A2A2080430 ). We used the 10 C synchrotron beamline of the Pohang Acceleration Laboratory (PAL, Republic of Korea) under contact no. 2022–1st-10 C-025.

Publisher Copyright:
© 2022


  • Cobalt
  • Cyclopentanone
  • Furfural
  • Hydrogen shuttling
  • Solvent participation
  • Tetrahydrofurfuryl alcohol

ASJC Scopus subject areas

  • Catalysis
  • General Environmental Science
  • Process Chemistry and Technology


Dive into the research topics of 'Solvent-mediated selectivity control of furfural hydrogenation over a N-doped carbon-nanotube-supported Co/CoOx catalyst'. Together they form a unique fingerprint.

Cite this