Campisi, Sebastiano; Chan-Thaw, Carine E.; Chinchilla, Lidia E.; Chutia, Arunabhiram; Botton, Gianluigi A.; Mohammed, Khaled M. H.; Dimitratos, Nikolaos; Wells, Peter P.; Villa, Alberto published the artcile< Dual-Site-Mediated Hydrogenation Catalysis on Pd/NiO: Selective Biomass Transformation and Maintenance of Catalytic Activity at Low Pd Loading>, Application of C5H10O2, the main research area is hydrogenation catalysis palladium NiO biomass transformation.
Creating a new chem. ecosystem based on platform chems. derived from waste biomass has significant challenges; catalysts need to be able to convert these highly functionalized mols. to specific target chems., economical – not relying on large quantities of precious metals – and maintain activity over many cycles. Herein, we demonstrate how Pd/NiO is able to direct the selectivity of furfural hydrogenation and maintain performance at low Pd loading by a unique dual-site mechanism. Sol-immobilization was used to prepare 1 wt% Pd nanoparticles supported on NiO and TiO2, with the Pd/NiO catalyst showing enhanced activity with a significantly different selectivity profile; Pd/NiO favors tetrahydrofurfuryl alc. (72%), whereas Pd/TiO2 produces furfuryl alc. as the major product (68%). D. functional theory studies evidenced significant differences on the adsorption of furfural on both NiO and Pd surfaces. Based on this observation we hypothesized that the role of Pd was to dissociate hydrogen, with the NiO surface adsorbing furfural. This dual-site hydrogenation mechanism was supported by comparing the performance of 0.1 wt% Pd/NiO and 0.1 wt% Pd/TiO2. In this study, the 0.1 and 1 wt% Pd/NiO catalysts had a comparable activity, whereas there was a 10 fold reduction in performance for 0.1 weight% Pd/TiO2. When using TiO2 as the support the Pd nanoparticles are responsible for both hydrogen dissociation and furfural adsorption, and the activity is strongly correlated with the effective metal surface area. This work has significant implications for the upgrading of bio-derived feedstocks, suggesting alternative ways for promoting selective transformations and reducing the reliance on precious metals.
ACS Catalysis published new progress about Adsorption. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Application of C5H10O2.
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem