Photocatalytic Cellulose Reforming for H2 and Formate Production by Using Graphene Oxide-Dot Catalysts

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Van-Can Nguyen; Dipak B. Nimbalkar; Le D. Nam; Yuh-Lang Lee; Hsisheng Teng

2021

Scholarcy highlights

  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • The mechanism of photocatalytic biomass reforming for H2 production is far from fully understood
  • Reforming of cellulose is initiated with the peeling of its constituent d-glucose units, which subsequently transform into deprotonated isosaccharinic acid
  • This study elucidates the detailed mechanism in the photocatalytic reforming of cellulose
  • The photocatalytic oxidation is accompanied by the photocatalytic reduction of water to produce H2. This reforming steadily produced H2 for 6 days with a negligible rate decay, accomplishing 35% of the theoretical ultimate value for the reforming of cellulose
  • TEM images of SNGODs, FTIR and Raman spectrum of SNGODs, Tauc plot of SNGODs, PL spectrum of SNGODs, UPS analysis of SNGODs, the amount of solid cellulose residues, LC-MS analysis of the solutions, LC-MS-MS analysis of deprotonated compounds, GC-MS analysis of the solutions, H-isotope study to identify the source of H2, the mechanistic steps of peeling-off reaction of cellulose in the alkaline solution, effect of solution-containing oxygen in reforming, calculation of the amounts of H2 and HCOO– products, H2 production over Pt-deposited TiO2, conversion yields of H2 from the cellulose reforming, literature review, and the interaction of the photogenerated holes from SNGODs with cellulose solution
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