TY - JOUR
T1 - Solvent-mediated selectivity control of furfural hydrogenation over a N-doped carbon-nanotube-supported Co/CoOx catalyst
AU - Ranaware, Virendra
AU - Kurniawan, Rizky Gilang
AU - Verma, Deepak
AU - Kwak, Sang Kyu
AU - Ryu, Beom Chan
AU - Kang, Jeong Won
AU - Kim, Jaehoon
N1 - 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
PY - 2022/12/5
Y1 - 2022/12/5
N2 - 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.
AB - 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.
KW - Cobalt
KW - Cyclopentanone
KW - Furfural
KW - Hydrogen shuttling
KW - Solvent participation
KW - Tetrahydrofurfuryl alcohol
UR - http://www.scopus.com/inward/record.url?scp=85135941673&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2022.121838
DO - 10.1016/j.apcatb.2022.121838
M3 - Article
AN - SCOPUS:85135941673
VL - 318
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
SN - 0926-3373
M1 - 121838
ER -