@article{scholars12904, title = {Ethanol CO2 reforming on La2O3 and CeO2-promoted Cu/Al2O3 catalysts for enhanced hydrogen production}, number = {36}, note = {cited By 23}, volume = {45}, doi = {10.1016/j.ijhydene.2019.10.024}, journal = {International Journal of Hydrogen Energy}, publisher = {Elsevier Ltd}, pages = {18398--18410}, year = {2020}, issn = {03603199}, author = {Shafiqah, M.-N. N. and Tran, H. N. and Nguyen, T. D. and Phuong, P. T. T. and Abdullah, B. and Lam, S. S. and Nguyen-Tri, P. and Kumar, R. and Nanda, S. and Vo, D.-V. N.}, abstract = {3Ce- and 3La-promoted 10Cu/Al2O3 catalysts were synthesized via a sequential incipient wetness impregnation approach and implemented for ethanol CO2 reforming (ECR) at 948{\^a}??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 {\^a}?? Cu0. Irrespective of reaction temperature, 3La{\^a}??10Cu/Al2O3 exhibited the highest reactant conversions, H2 and CO yields followed by 3Ce{\^a}??10Cu/Al2O3 and 10Cu/Al2O3. The greatest C2H5OH and CO2 conversions of 87.6 and 55.1, respectively were observed on 3La{\^a}??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 mol{\^a}??1. The thorough CuO {\^a}?? 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. {\^A}{\copyright} 2019 Hydrogen Energy Publications LLC}, keywords = {Activation energy; Carbon dioxide; Catalysts; Cerium oxide; Copper oxides; Crystallite size; Ethanol; Fischer-Tropsch synthesis; Hydrogen; Hydrogen production; Lanthanum oxides, CeO2; CO2 reforming; Cu-based catalyst; La2O3; Syn-gas, Aluminum compounds}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074422903&doi=10.1016\%2fj.ijhydene.2019.10.024&partnerID=40&md5=d104249ee6cd577c13e14f693769c195} }