TY - JOUR
T1 - Pt/ZrO2 Prepared by Atomic Trapping
T2 - An Efficient Catalyst for the Conversion of Glycerol to Lactic Acid with Concomitant Transfer Hydrogenation of Cyclohexene
AU - Tang, Zhenchen
AU - Liu, Pei
AU - Cao, Huatang
AU - Bals, Sara
AU - Heeres, Hero J.
AU - Pescarmona, Paolo P.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - A series of heterogeneous catalysts consisting of highly dispersed Pt nanoparticles supported on nanosized ZrO2 (20 to 60 nm) was synthesized and investigated for the one-pot transfer hydrogenation between glycerol and cyclohexene to produce lactic acid and cyclohexane, without any additional H2. Different preparation methods were screened, by varying the calcination and reduction procedures with the purpose of optimizing the dispersion of Pt species (i.e., as single-atom sites or extra-fine Pt nanoparticles) on the ZrO2 support. The Pt/ZrO2 catalysts were characterized by means of transmission electron microscopy techniques (HAADF-STEM, TEM), elemental analysis (ICP-OES, EDX mapping), N2-physisorption, H2 temperature-programmed-reduction (H2-TPR), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). Based on this combination of techniques it was possible to correlate the temperature of the calcination and reduction treatments with the nature of the Pt species. The best catalyst consisted of subnanometer Pt clusters (
AB - A series of heterogeneous catalysts consisting of highly dispersed Pt nanoparticles supported on nanosized ZrO2 (20 to 60 nm) was synthesized and investigated for the one-pot transfer hydrogenation between glycerol and cyclohexene to produce lactic acid and cyclohexane, without any additional H2. Different preparation methods were screened, by varying the calcination and reduction procedures with the purpose of optimizing the dispersion of Pt species (i.e., as single-atom sites or extra-fine Pt nanoparticles) on the ZrO2 support. The Pt/ZrO2 catalysts were characterized by means of transmission electron microscopy techniques (HAADF-STEM, TEM), elemental analysis (ICP-OES, EDX mapping), N2-physisorption, H2 temperature-programmed-reduction (H2-TPR), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). Based on this combination of techniques it was possible to correlate the temperature of the calcination and reduction treatments with the nature of the Pt species. The best catalyst consisted of subnanometer Pt clusters (
KW - Pt catalyst
KW - cyclohexene
KW - glycerol
KW - lactic acid
KW - transfer hydrogenation
UR - http://www.mendeley.com/research/ptzro2-prepared-atomic-trapping-efficient-catalyst-conversion-glycerol-lactic-acid-concomitant-trans
U2 - 10.1021/acscatal.9b02139
DO - 10.1021/acscatal.9b02139
M3 - Article
C2 - 32953236
SN - 2155-5435
VL - 9
SP - 9953
EP - 9963
JO - ACS Catalysis
JF - ACS Catalysis
IS - 11
ER -