https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 3D cubic mesoporous C₃N₄ with tunable pore diameters derived from KIT-6 and their application in base catalyzed Knoevenagel reaction https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36598 Wed 10 Jun 2020 15:12:43 AEST ]]> Controlled synthesis of three dimensional mesoporous C₃N₄ with ordered porous structure for room temperature Suzuki coupling reaction https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36832 Ia3d symmetry and controllable surface properties through a simple polymerization of an environmentally benign and non-toxic guanidine hydrochloride as a C and N precursor using KIT-6 with variable pore sizes as templates for Suzuki coupling reaction. The pore diameters (3.1-4.2 nm), specific surface areas (207-303 m2 g-1), and the specific pore volumes (0.58-0.71 cm3 g-1) of the MGCN-6 materials are finely controlled by varying the pore size of the templates used. The nano cavities of MGCN-6 with the highest specific surface area and a free amine groups are effectively utilized to chelate with Pd(OAC)₂ and applied the prepared catalysts for Suzuki coupling reaction between aryl halides with phenylboronic acid derivatives under very mild and sustainable reaction conditions. The Pd(OAC)₂/MGCN-6 is found to be very active and stable and exhibits an excellent reactivity and selectivity for all of substrates regardless of aryl halides with electron-withdrawing and electron donating groups at room temperature. The activity of the Pd(OAC)₂/MGCN-6 is much higher than that of non-porous bulk graphitic carbon nitride and 2D mesoporous carbon nitride.]]> Wed 08 Jul 2020 15:26:45 AEST ]]> Biomass derived porous carbon for CO₂ capture https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36983 Mon 29 Jan 2024 18:02:09 AEDT ]]> Highly enhanced photocatalytic hydrogen evolution activity of graphitic carbon nitride with 3D connected mesoporous structure https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39863 2/g). UV–Vis and PL spectra show that the absorption edges of mesoporous gCNs are slightly blue-shifted and the PL intensity is remarkably suppressed. The photocatalytic hydrogen evolution activity of gCN-KIT-6 under solar simulated irradiation is 1.92 mmol·g−1 h−1 which is much higher than that of gCN with 2D mesoporous structure, gCN from silica nanoparticle and bulk nonporous gCN. This high photocatalytic activity of gCN-KIT-6 can be attributed to 3D structure and the retarded electron-hole recombination.]]> Mon 29 Jan 2024 17:49:59 AEDT ]]>