TY  - JOUR
PB  - Elsevier Ltd
SN  - 03603199
EP  - 18410
AV  - none
SP  - 18398
TI  - Ethanol CO2 reforming on La2O3 and CeO2-promoted Cu/Al2O3 catalysts for enhanced hydrogen production
N1  - cited By 23
Y1  - 2020///
VL  - 45
A1  - Shafiqah, M.-N.N.
A1  - Tran, H.N.
A1  - Nguyen, T.D.
A1  - Phuong, P.T.T.
A1  - Abdullah, B.
A1  - Lam, S.S.
A1  - Nguyen-Tri, P.
A1  - Kumar, R.
A1  - Nanda, S.
A1  - Vo, D.-V.N.
JF  - International Journal of Hydrogen Energy
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074422903&doi=10.1016%2fj.ijhydene.2019.10.024&partnerID=40&md5=d104249ee6cd577c13e14f693769c195
ID  - scholars12904
KW  - Activation energy; Carbon dioxide; Catalysts; Cerium oxide; Copper oxides; Crystallite size; Ethanol; Fischer-Tropsch synthesis; Hydrogen; Hydrogen production; Lanthanum oxides
KW  -  CeO2; CO2 reforming; Cu-based catalyst; La2O3; Syn-gas
KW  -  Aluminum compounds
N2  - 3Ce- and 3La-promoted 10Cu/Al2O3 catalysts were synthesized via a sequential incipient wetness impregnation approach and implemented for ethanol CO2 reforming (ECR) at 948â??1023 K and stoichiometric feed ratio. CeO2 and La2O3 promoters reduced CuO crystallite size from 32.4 to 27.4 nm due to diluting impact and enhanced the degree of reduction of CuO â?? Cu0. Irrespective of reaction temperature, 3Laâ??10Cu/Al2O3 exhibited the highest reactant conversions, H2 and CO yields followed by 3Ceâ??10Cu/Al2O3 and 10Cu/Al2O3. The greatest C2H5OH and CO2 conversions of 87.6 and 55.1, respectively were observed on 3Laâ??10Cu/Al2O3 at 1023 K whereas for all catalysts, H2/CO ratios varying from 1.46 to 1.91 were preferred as feedstocks for Fischer-Tropsch synthesis. Activation energy for C2H5OH consumption was also reduced with promoter addition from 53.29 to 47.05 kJ molâ??1. The thorough CuO â?? Cu0 reduction by H2 activation was evident and the Cu0 active phase was resistant to re-oxidation during ECR for all samples. Promoters addition reduced considerably the total carbon deposition from 40.04 to 27.55 and greatly suppressed non-active graphite formation from 26.94 to 4.20 because of their basic character and cycling redox enhancement. © 2019 Hydrogen Energy Publications LLC
IS  - 36
ER  -