@article{scholars14511,
         journal = {Molecular Catalysis},
            year = {2021},
       publisher = {Elsevier B.V.},
             doi = {10.1016/j.mcat.2021.111860},
            note = {cited By 27},
          volume = {514},
           title = {In-situ hydrogenolysis of glycerol using hydrogen produced via aqueous phase reforming of glycerol over sonochemically synthesized nickel-based nano-catalyst},
            issn = {24688231},
          author = {Syuhada, A. and Ameen, M. and Azizan, M. T. and Aqsha, A. and Yusoff, M. H. M. and Ramli, A. and Alnarabiji, M. S. and Sher, F.},
        keywords = {Ammonia; Batch reactors; Catalyst activity; Catalyst selectivity; Crystallite size; Hydrogen production; Hydrogenolysis; Hydrolysis; Impregnation; Nanocatalysts; Nickel, 1-3-propanediol; Aqueous-phase reforming; Higher yield; Ni/CeO2 catalyst; Renewable fuels; Sonochemical; Sonochemically synthesized catalyst; Synthesised; ]+ catalyst, Glycerol},
        abstract = {1,3-Propanediol (1,3-PDO) is a commercially valuable chemical for the production of polytrimethylene terephthalate polymers and polyurethane. In this study, the production of 1,3-PDO was investigated via aqueous phase reforming (APR) and selective hydrogenolysis of glycerol over Ni-Ca/CeO2 catalysts synthesized by sonochemical (Us) and wet impregnation (WI) methods. The experiments were performed in a batch reactor at 20 bar, 230 {\^a}??, and 450 rpm for 1 h. The synthesized catalysts were characterized using XRD, TEM, FESEM, BET, H2-TPR, XPS, CO-chemisorption, and NH3-TPD to better understand the physio-chemical and surface characteristics. The results revealed that sonochemical catalysts showed a larger surface area, smaller crystallite size, low reduction temperature and more homogenous particle distribution than wet impregnation catalysts. For both preparation methods, monometallic Ni/CeO2 catalysts showed the highest activity, whereas Ca modification of Ni/CeO2 catalysts significantly decreased the activity of the catalysts. The highest yield and selectivity of 1,3-PDO were 19.54 and 52.73, respectively, using Ni/CeO2Us catalyst. The best catalyst was further utilized for parameters optimization study to observe the effect of varying glycerol concentration (10 to 25 vol.), temperature (210 to 250 {\^a}??) and pressure (10 to 30 bar) on the yield and selectivity of 1,3-PDO and glycerol conversion. The results demonstrated that the highest yield (19.54) and selectivity (52.73) of 1,3-PDO were obtained over 10 vol., 230 {\^a}?? and 20 bar with glycerol conversion of 54.26. This present study provides a promising and economical process of converting glycerol to 1,3-PDO, which has wide applications in the industry. {\^A}{\copyright} 2021 Elsevier B.V.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114665808&doi=10.1016\%2fj.mcat.2021.111860&partnerID=40&md5=b4a44c0d474d05c0a9a58eb3280b4d40}
}