Australian Journal of Chemistry
Volume 72 Number 6 2019
The redox versatility and ready availability of manganese makes it an essential element for life on Earth and many human activities.
CH18577TiO2 Films Functionalized with ABDA for Enhanced Photoelectrochemical Performance
A 4,4′-(anthracene-2,6-diylbis(azanediyl))bis(4-oxobutanoic acid) (ABDA)/TiO2 composite thin film is fabricated through a wet-impregnation strategy, and exhibits an enhanced photoelectrochemical performance. The photocurrent generated by the optimal ABDA/TiO2 is 1.8 times higher than pristine TiO2. ABDA also broadens the light absorption range and promotes the separation of photoelectrons and holes.
CH18534Effect of Aging Methods on CuZnAl Catalysts for Methyl Acetate Hydrogenation
CuZnAl catalysts derived from layered double hydroxide precursors have been successfully synthesised. The catalysts treated by ultrasound or high shear mixer stirring exhibited higher catalytic performance due to the existence of a higher copper dispersion and smaller copper particle size.
CH18447Preparation and Characterization of a PVDF Membrane Modified by an Ionic Liquid
[Bmim]PF6 blended in polyvinylidene fluoride (PVDF) porous membranes enhances the membrane hydrophobicity. We determined how [Bmim]PF6 influences the membrane properties and structures. The improvements in the membrane properties potentially favour their application for absorption and membrane distillation.
CH19010Electrocyclic Ring-Opening of 6,6-Dichlorobicyclo[3.1.0]-hexanes and Trapping of the Resulting π-Allyl Cations by C-1 Tethered Hydroxyamine Derivatives: Formation of 2-Oxa-1-azaspiro[4.5]decan-3-ones
The C-1 tethered 6,6-dichlorobicyclo[3.1.0]hexanes 1a–c engage in a silver ion-promoted electrocyclic ring-opening/spirocyclisation reaction sequence to give products 3b–d.
CH18580Host-Guest Inclusion Systems of Morin Hydrate and Quercetin with Two Bis(β-cyclodextrin)s: Preparation, Characterization, and Antioxidant Activity
The inclusion complexation behaviour of morin hydrate (MH) and quercetin (QCT) with the two amide-bridged bis(β-cyclodextrin (CD))s, 1 and 2, was investigated in both solution and the solid state.
The new core–shell structured metal–organic coordination polymer (Zn-L-CP) microspheres with a hierarchical microporous–mesoporous–macroporous structure are synthesized by a one-pot template-free method. The obtained microspheres proved to be effective heterogeneous catalysts for the deacetylation reaction. The yield is 96 %, and the yield can remain at 90 % after seven cycles.
CH18617Green Synthesized Plasmonic Silver Systems for Potential Non-Linear Optical Applications: Optical Limiting and Dual Beam Mode Matched Thermal Lensing
We report the synthesis and non-linear optical properties of highly stable mimosine-decorated silver nano particles (AgNPs). The as-synthesized AgNPs were characterized by UV-visible absorption, fluorescence spectroscopy, and high resolution transmission electron microscopy. Low optical limiting threshold and promising value of thermal diffusivity point to the application potential of the system.
Liquid polyisoprene rubber (LIR) is a green and environment friendly reactive plasticizer for rubber with broad prospects. The ternary liquid Nd(P204)3 catalytic system was used to initiate isoprene to obtain LIR with a high cis-1,4 unit content (cis-1,4 > 98 %), precisely controlled molecular weight, and narrow molecular weight distribution (Mw/Mn < 1.2). This synthesis strategy for high performance LIR is simple, efficient, and easy to industrialize.
CH19054Large-Scale Synthesis and Lithium Storage Performance of Multilayer TiO2 Nanobelts
Benefiting from a multilayer nanobelt structure, as-prepared TiO2 nanobelts deliver a high reversible capacity, strong cycling stability, and ultra-long cycle life (~185 mAh g−1 at 500 mA g−1 after 500 cycles) as electrode materials for lithium ion batteries.